0001973239-26-000114 | 6-K | XBRL Viewer

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Balance Sheet Components

3 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Components

2 - Balance Sheet Components

Certain balance sheet components are as follows:

Prepaid expenses and other current assets consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Research and development tax credit receivables	$	130	$	120
Prepayments	228		169
Other receivables	93		69
Total prepaid expenses and other current assets	$	451	$	358

Accrued compensation and benefits consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Accrued bonuses and commissions	$	5	$	26
Accrued vacation and sabbatical	113		114
Accrued salaries and fringe benefits	9		7
Employee Stock Purchase Plan liability	29		7

Total accrued compensation and benefits	$	156	$	154

Other current liabilities consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Employee related payroll taxes and payables (1)	$	375	$	119
Accrued expenses and fees	192		145
Electronic design automation liabilities	56		78
Trade payables (including payables to related parties of $30 and $20 as of June 30, 2026 and March 31, 2026, respectively)	52		80

Finance lease liabilities	21		25
Total other current liabilities	$	696	$	447

(1) Employee related payroll taxes and payables are primarily related to vested restricted share units (“RSUs”) during the three months ended June 30, 2026 and March 31, 2026, respectively, which will be or were, as applicable, paid in the subsequent quarter.

Other non-current liabilities consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Electronic design automation liabilities	$	92	$	97
Other non-current liabilities	49		64
Total other non-current liabilities	$	141	$	161

Financial Instruments (Tables)

3 Months Ended

Jun. 30, 2026

Receivables [Abstract]

Schedule of Loans and Other Receivables Carried at Amortized Cost

Loans and other receivables carried at amortized cost, included in prepaid expenses and other current assets and other non-current assets on the Condensed Consolidated Balance Sheets, are as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Loans and other receivables carried at amortized cost
Loans receivable	$	10	$	10
Other receivables	22		17
Allowance for current expected credit losses	(3)		(3)
Loans and other receivables carried at amortized cost, net	$	29	$	24

Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Receivables [Abstract]
Debt securities, available-for-sale, noncurrent	$ 17.8	$ 13.8

Derivatives - Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location (Details) - Level 3 - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract]
Change in gains (losses) recognized in accumulated other comprehensive income (loss) on cash flow hedge derivatives	$ 1	$ 28
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income	0	(7)
Income tax benefit (expense) on cash flow hedges	0	(5)
Net change in fair value of the effective portion of designated cash flow hedges, net of tax	1	16
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract]
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income	0	(4)
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract]
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income	$ 0	$ (3)

Shareholders' Equity (Details) - USD ($) shares in Millions, $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Equity [Abstract]
Shares held in EBT (in shares)	0	0
Market value of shares held in EBT	$ 9.5	$ 2.2

Share-based Compensation - Schedule of Omnibus Incentive Plan (Details) - Restricted Stock Units And Performance Shares - Omnibus Incentive Plan shares in Millions	3 Months Ended
	Jun. 30, 2026 $ / shares shares
Awards
Outstanding, beginning of period (in shares) \| shares	18
Granted (in shares) \| shares	11
Vested (in shares) \| shares	(4)
Cancelled and forfeited (in shares) \| shares	(1)
Outstanding, ending of period (in shares) \| shares	24
Weighted Average Grant Date Fair Value Per Award
Outstanding, beginning of period (in dollars per share) \| $ / shares	$ 120.64
Granted (in dollars per share) \| $ / shares	208.44
Vested (in dollars per share) \| $ / shares	117.88
Cancelled and forfeited (in dollars per share) \| $ / shares	141.16
Outstanding, ending of period (in dollars per share) \| $ / shares	$ 159.77

Financial Instruments - Schedule of Loans and Other Receivables Carried at Amortized Cost (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for current expected credit losses	$ (3)	$ (3)
Loans and other receivables carried at amortized cost, net	29	24
Loans receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans and other receivables carried at amortized cost	10	10
Other receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans and other receivables carried at amortized cost	$ 22	$ 17

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References + Details

Equity Investments - Schedule of Equity Investments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Investments, All Other Investments [Abstract]
Equity method investments under fair value option	$ 141	$ 148
Equity investments in publicly listed companies	290	96
Equity method investments under equity method	12	13
Non-marketable equity securities	146	130
Total equity investments	$ 589	$ 387

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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+ Details

Fair Value - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Financial assets
Short-term investments	$ 830	$ 850
Financial liabilities
Foreign currency forward contracts	9	10
Total financial liabilities	9	10
Fair Value, Inputs, Level 1, Level 2, and Level 3
Financial assets
Money market funds	2,487	2,456
Short-term investments	830	850
Equity investments	342	153
Available-for-sale debt securities	18	13
Total financial assets	3,677	3,472
Level 1
Financial assets
Money market funds	2,487	2,456
Short-term investments	830	850
Equity investments	290	96
Available-for-sale debt securities	0	0
Total financial assets	3,607	3,402
Financial liabilities
Foreign currency forward contracts	0	0
Total financial liabilities	0	0
Level 2
Financial assets
Money market funds	0	0
Short-term investments	0	0
Equity investments	0	0
Available-for-sale debt securities	0	0
Total financial assets	0	0
Financial liabilities
Foreign currency forward contracts	9	10
Total financial liabilities	9	10
Level 3
Financial assets
Money market funds	0	0
Short-term investments	0	0
Equity investments	52	57
Available-for-sale debt securities	18	13
Total financial assets	70	70
Financial liabilities
Foreign currency forward contracts	0	0
Total financial liabilities	$ 0	$ 0

Derivatives - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Liabilities	$ 9	$ 10
Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Liabilities	0	0
Cash Flow Hedging \| Designated as Hedging Instrument \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Assets	0	0
Derivative Liabilities	$ 9	$ 10

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-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-5B

+ Details

Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026
Revenue from Contract with Customer [Abstract]
Increase in contract with customer, asset	$ 259.1		$ 1,436.2
Contract assets, transfer to accounts receivable	308.7		$ 1,127.3
Performance obligation satisfied in previous period	$ 735.8	$ 586.9

Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025
Revenue from Contract with Customer [Abstract]
Accounts receivable	$ 1,150	$ 1,331
Allowance for current expected credit losses	(31)	(31)	$ (19)	$ (20)
Total accounts receivable, net	$ 1,119	$ 1,300

Equity Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026
Schedule of Equity Method Investments [Line Items]
Equity method investments under fair value option	$ 141.0		$ 148.0
Gains (losses) on equity method investments	(8.0)	$ (1.0)
Equity investments in publicly listed companies	290.0		96.0
Equity investments in publicly listed companies	126.0	4.0
Non-marketable equity securities	146.0		130.0
Gains (losses) on non-marketable equity securities (includes NAV)	10.0	1.0
Dividends from equity investments	2.4	1.1
Financial commitments to investees, off balance sheet	24.3		25.6
Kigen (UK) Limited
Schedule of Equity Method Investments [Line Items]
Non-marketable equity securities	16.4		16.4
Acetone Limited
Schedule of Equity Method Investments [Line Items]
Gains (losses) on equity method investments	(5.0)	0.0
Equity method investments, fair value	51.5		56.5
Publicly Listed Companies
Schedule of Equity Method Investments [Line Items]
Equity investments in publicly listed companies	289.6		96.1
Equity investments in publicly listed companies	125.6	3.8
Raspberry Pi Holdings PLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity securities	67.9
Fair Value Measured at Net Asset Value Per Share
Schedule of Equity Method Investments [Line Items]
Equity method investments under fair value option	89.1		91.3
Gains (losses) on equity method investments	(2.2)	(2.0)
Non-marketable equity securities	30.3		$ 27.2
Gains (losses) on non-marketable equity securities (includes NAV)	$ 1.6	$ 1.1

Revenue - Schedule of Revenue by Geographical Location (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,289	$ 1,053
United States
Disaggregation of Revenue [Line Items]
Total Revenue	388	382
PRC
Disaggregation of Revenue [Line Items]
Total Revenue	200	209
Japan
Disaggregation of Revenue [Line Items]
Total Revenue	276	154
Taiwan
Disaggregation of Revenue [Line Items]
Total Revenue	176	146
Republic of Korea
Disaggregation of Revenue [Line Items]
Total Revenue	117	69
Other countries
Disaggregation of Revenue [Line Items]
Total Revenue	$ 132	$ 93

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

+ Details

Related Party Transactions	3 Months Ended
Related Party Transactions	Jun. 30, 2026
Related Party Transactions [Abstract]
Related Party Transactions	14 - Related Party Transactions Arm China and Acetone Limited Following the restructuring of its direct investment in Arm Technology (China) Co. Limited (“Arm China”) in the fiscal year ended March 31, 2022, the Company has a 10% non-voting ownership interest in Acetone Limited, whose primary asset is a 48.2% interest in Arm China. The Company has no direct material transactions with Acetone Limited. For the three months ended June 30, 2026 and 2025, the Company recognized revenue under the terms of the intellectual property license agreement (“IPLA”) with Arm China of $189.4 million and $201.0 million, respectively, and recognized expenses under a service share arrangement with Arm China of $17.2 million and $13.9 million, respectively. The Company terminated an agreement with Arm China during the three months ended June 30, 2026, for outsourced services and recognized $6.8 million of contract termination costs in disposal, restructuring and other operating expenses, net in the Condensed Consolidated Income Statements. The Company leases certain assets to Arm China. For the three months ended June 30, 2026 and 2025, the Company recognized rental income from the assets leased to Arm China of $0.3 million and $0.2 million, respectively. As of June 30, 2026, the Company had an amount due of $283.5 million ($308.3 million receivable less $24.8 million payable) from Arm China. As of June 30, 2026, the Company had current contract liabilities of $29.0 million and non-current portion of contract liabilities of $23.3 million relating to Arm China. As of March 31, 2026, the Company had an amount due of $276.2 million ($296.5 million receivable less $20.3 million payable) from Arm China. As of March 31, 2026, the Company had current contract liabilities of $30.3 million and non-current portion of contract liabilities of $23.3 million relating to Arm China. For the three months ended June 30, 2026 and 2025, the Company did not recognize any expected credit losses against earnings relating to Arm China. As of June 30, 2026 and March 31, 2026, the Company’s allowance for current expected credit losses related to Arm China was $28.3 million, which is reflected in accounts receivable, net on the Condensed Consolidated Balance Sheets. See Note 5 - Equity Investments, for further details of the impact of Acetone Limited on the Company’s results. Other Entities Related by Virtue of Common Control by SoftBank Group The Company is party to a consulting agreement with SoftBank Group pursuant to which the Company provides to SoftBank Group and its affiliates certain technical consultancy and advisory services relating to potential transactions, strategic partnerships, licensing agreements, commercial arrangements or other arrangements involving SoftBank Group or its affiliates (the “Consulting Agreement”). Pursuant to statements of work entered into under the Consulting Agreement, the Company may earn fees for services provided. For the three months ended June 30, 2026 and 2025, revenue from the Consulting Agreement was $192.9 million and $126.1 million, respectively, from an affiliate of SoftBank Group. As of June 30, 2026, the Company had current and non-current contract assets of $576.1 million and $1.1 million, respectively, from an affiliate of SoftBank Group. As of March 31, 2026, the Company had current contract assets of $645.8 million and no non-current contract assets from an affiliate of SoftBank Group. In November 2025, SoftBank Group acquired all of the outstanding equity interests of Ampere, in which the Company previously had an equity investment and over which the Company had significant influence. The Company continues to have licensing and servicing arrangements with Ampere for which the Company may earn fees for services provided. For the three months ended June 30, 2026 and 2025, the Company recognized revenue of $5.4 million and $0.6 million, respectively, from Ampere. Effective March 2026, the Company entered into a development agreement with Ampere (the “Ampere Development Agreement”), enabling Ampere to provide development services to the Company under one or more statements of work. For the three months ended June 30, 2026, the Company recognized expenses under the Ampere Development Agreement of $5.0 million. As of June 30, 2026, the Company had prepaid expenses of $5.0 million, current contract assets of $0.5 million, accounts payable of $5.0 million, and current contract liabilities of $0.4 million related to contracts with Ampere. As of June 30, 2026, the Company did not have accounts receivable balances related to contracts with Ampere. As of March 31, 2026, the Company had accounts receivable of $0.5 million, current contract assets of $0.5 million, and current contract liabilities of $5.4 million related to contracts with Ampere. There were no other material transactions with other entities related by virtue of common control by SoftBank Group. Other Equity Investments The Company has investments in limited partnerships or certain limited liability companies that maintain a specific ownership account for each investor, for which the Company has more than virtually no influence (i.e., at least 3% to 5% ownership). For the three months ended June 30, 2026 and 2025, the Company recognized aggregate distributions, including liquidation proceeds, dividends and returns of capital from certain equity investments of $0.8 million and $1.8 million, respectively. See Note 5 - Equity Investments, for further details. Linaro Limited Linaro Limited (“Linaro”) is a not-for-profit entity in which the Company was a member with significant influence. The Company resigned as a member of Linaro and no longer has significant influence in Linaro effective December 1, 2025. Therefore, Linaro is no longer considered a related party. Linaro continues to be a service partner to the Company. For the three months ended June 30, 2025, prior to resignation, the Company incurred subscription and other costs of $2.3 million from Linaro. In February 2023, the Company entered into an agreement with Linaro to sell certain net assets of the Company that met the definition of a business in exchange for cash consideration of $4.0 million to be paid in equal annual installments over five years. As of June 30, 2026 and March 31, 2026, the total unpaid purchase consideration remains in prepaid expenses and other current assets and other non-current assets on the Condensed Consolidated Balance Sheets; however, Linaro is no longer considered a related party. Loans to Related Parties As of March 31, 2025, the Company had a loan receivable of $16.6 million from Arduino, previously a related party. In October 2025, the Company received $16.9 million for the full repayment of the loan receivable from Arduino in connection with Arduino’s acquisition by a third party. Therefore, as of June 30, 2026 and March 31, 2026, the Company did not have a loan receivable with Arduino. During the fiscal year ended March 31, 2026, the Company recognized a reversal for the current expected credit loss reserve with respect to its loan receivable from Arduino by $16.8 million in selling, general, and administrative expenses in the Condensed Consolidated Income Statements. As of June 30, 2026 and March 31, 2026, the Company had a loan receivable of $3.2 million with Cerfe Labs, Inc., a related party. The loan receivable with Cerfe Labs was fully reserved for under current expected credit loss reserve for the periods presented.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Segment Information - Narrative (Details)	3 Months Ended
Segment Information - Narrative (Details)	Jun. 30, 2026 segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

Revenue

3 Months Ended

Jun. 30, 2026

Revenue from Contract with Customer [Abstract]

Revenue

3 - Revenue

Revenue Recognition

Revenue for the Company’s major product offerings consists of the following:

License and Other Revenue

•Intellectual property license — The Company generally licenses IP under non-exclusive license agreements that provide usage rights for specific applications for a finite or perpetual term. These licenses are made available electronically to address the customer-specific business requirements. These arrangements generally have distinct performance obligations that consist of transferring the licensed IPs, version extensions of architecture IP or releases of specified IPs, and support services. Support services consist of a stand-ready obligation to provide technical support, patches, and bug fixes over the support term. Where arrangements include royalty buydowns or upfront minimum royalty commitments, the Company treats them as fixed contract consideration under licensing revenue. Revenue allocated to the IP license is recognized at a point in time upon the delivery or beginning of the license term, whichever is later. Revenue allocated to distinct version extensions of architecture IP or releases of specified IP, excluding when-and-if-available minor updates over the support term, are recognized at a point in time upon the delivery or beginning of license term, whichever is later.

Certain license agreements provide customers with the right to access a library of current and future IPs on an unlimited basis over the contractual period depending on the terms of the applicable contract. These licensing arrangements represent stand-ready obligations in that the timing of the delivery of the underlying IPs is within the control of the customer and the extent of use in any given period does not diminish the remaining performance obligation. The contract consideration related to these arrangements is recognized ratably over the term of the contract in line with when the control of the performance obligations is transferred.

Certain subscription license agreements include unspecified future IPs that are provided on a when-and-if-available basis, representing a stand-ready obligation. The contract consideration allocated to the stand-ready obligation is recognized on a ratable basis over the term of the contract, commencing upon the later of the effective date of the agreement and the transfer of the initial available IP license.

•Software sales, including development systems — Sales of software, including development systems, which are not specifically designed for a given license (such as off-the-shelf software), are recognized upon delivery when control has been transferred and the customer can begin to use and benefit from the license.

•Professional services — Services (such as training, professional and design services) that the Company provides, which are not essential to the functionality of the IP, are separately stated and priced in the contract and accounted for separately. Training revenue is recognized as services are performed. Revenue from professional and design services is recognized over time using an input method based on engineering labor hours expended to date relative to the estimated total effort required. For such professional and design services, the Company has an enforceable right to payment for performance completed to date, which includes a reasonable profit margin and the performance of such services does not create an asset with an alternative use. In certain arrangements, the Company also provides customers with professional and design services, as a stand-ready obligation, that are recognized on a ratable basis over the term of the contract.

•Support and maintenance — Support and maintenance is a stand-ready obligation to the customer that is both provided and consumed simultaneously. Revenue is recognized on a straight-line basis over the period for which support and maintenance is contractually agreed pursuant to the license.

•Third-party arrangements — In certain arrangements, the Company arranges for third parties to provide products or services to customers. Revenue is recognized on a gross basis when the Company controls the product or service, and on a net margin basis when it acts as an agent. In agent arrangements, control passes directly from the third party to the customer, and the Company bears no inventory or performance risk.

Royalty Revenue

For most IP license agreements, royalties are collected on products that incorporate the Company’s IP. The Company applies the royalty exception, under which revenue is recognized when the subsequent sale or usage occurs, assuming control of the license to which the royalty relates has transferred to the customer. Accordingly, royalties are recognized on an accrual basis in the quarter in which the customer ships their products, based on the Company’s technology that it contains. This estimation process for the royalty revenue accrual is based on a combination of methodologies, including the use of historical sales trends and macroeconomic factors for predictive analysis, the analysis of customer royalty reports and their sales trends and forecasts, as well as data and forecasts from third-party industry research providers. Data considered includes revenue, unit shipments, average selling price, product mix, market share and market penetration. Adjustments to revenue are required in subsequent periods to reflect changes in estimates as new information becomes available, primarily resulting from actual amounts subsequently reported by the licensees in the period following the accrual, including royalty audit resolutions.

Disaggregation of Revenue

A summary of the Company’s disaggregated revenue is as follows:


	Three Months Ended June 30,
	External Customers				Related Parties				Total
(in millions)	2026		2025		2026		2025		2026		2025
License and Other Revenue(1)	$	310	$	255	$	264	$	213	$	574	$	468
Royalty Revenue	591		470		124		115		715		585
Total Revenue	$	901	$	725	$	388	$	328	$	1,289	$	1,053

(1) Includes over-time revenue of $288 million and $221 million, and point-in-time revenue of $286 million and $247 million, for the three months ended June 30, 2026 and 2025, respectively.

Revenue by geographic region is allocated to individual countries based on the principal headquarters of the customers. The geographical locations are not necessarily indicative of the country in which the customer sells products containing the Company’s technology IP. The following table summarizes information pertaining to revenue from customers based on the principal headquarters address by geographic regions:


	Three Months Ended June 30,
(in millions)	2026		2025
United States	$	388	$	382
PRC (1)	200		209
Japan	276		154
Taiwan	176		146
Republic of Korea	117		69
Other countries	132		93
Total Revenue	$	1,289	$	1,053

(1) “PRC” means the People’s Republic of China, including the Hong Kong Special Administrative Region and the Macau Special Administrative Region, but excluding Taiwan.

Receivables

A summary of the components of accounts receivable, net is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026


Accounts receivable	$	1,150	$	1,331
Allowance for current expected credit losses	(31)		(31)
Total accounts receivable, net	$	1,119	$	1,300

A summary of the movement in the allowance for current expected credit losses is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Beginning balance	$	31	$	20
Additional (reversal of) provision	—		(1)


Ending balance	$	31	$	19

Contract Assets

The timing of revenue recognition may differ from the timing of invoicing to customers. When revenue recognized exceeds the amount billed or billable to the customer, the Company records a contract asset. Contract assets are transferred to accounts receivable when the right to invoice becomes unconditional. Contract assets increased by $259.1 million and $1,436.2 million due to the timing of billings to customers, which fell into subsequent periods, as of June 30, 2026 and March 31, 2026, respectively, offset by $308.7 million and $1,127.3 million of contract assets transferred to accounts receivable, as of June 30, 2026 and March 31, 2026, respectively. The balance and activity for loss allowances related to contract assets was immaterial for the periods presented.

Contract Liabilities

A reconciliation of the movement in contract liabilities is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Beginning balance April 1,	$	1,046	$	911
Customer prepayment and billing in advance of performance	110		581
Revenue recognized in the period that was included in the contract liability balance at the beginning of the period	(138)		(149)
Revenue recognized in the period that was included in the contract liability balance during the period	(79)		(297)

Ending balance	$	939	$	1,046

Satisfied Performance Obligations

For the three months ended June 30, 2026 and 2025, revenue recognized from previously satisfied performance obligations in prior reporting periods was $735.8 million and $586.9 million, respectively. These amounts primarily represent royalties earned during the period.

Remaining Performance Obligations

Remaining performance obligations represent the transaction price allocated to performance obligations that are unsatisfied, or partially unsatisfied, which includes unearned revenue and amounts that will be invoiced and recognized as revenue in future periods.

The Company has elected to exclude potential future royalty receipts from the disclosure of remaining performance obligations. In certain arrangements, the Company’s right to consideration may not correspond directly with the performance of obligations.

In the absence of sufficient information, where the timing of satisfaction of the remaining performance obligations is dependent on a customer’s action, the transaction price allocated to such performance obligation is included in the more than 2 years category unless the contract or option expiration aligns with an earlier period or category.

As of June 30, 2026, the aggregate transaction price allocated to remaining performance obligations was $2,122.6 million.

The Company expects to recognize approximately 24% of the remaining performance obligations as revenue over the next 12 months, 23% over the subsequent 13- to 24-month period, and the remainder thereafter.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
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-Section 50
-Paragraph 7
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+ Details

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Current assets:
Cash and cash equivalents	$ 3,058	$ 2,751
Short-term investments	830	850
Accounts receivable, net (including receivables from related parties of $281 and $270 as of June 30, 2026 and March 31, 2026, respectively)	1,119	1,300
Contract assets (including contract assets from related parties of $577 and $646 as of June 30, 2026 and March 31, 2026, respectively)	881	977
Prepaid expenses and other current assets	451	358
Total current assets	6,339	6,236
Non-current assets:
Property and equipment, net	923	772
Operating lease right-of-use assets	406	379
Finance lease right-of-use assets	62	69
Equity investments (including investments held under fair value option of $141 and $148 as of June 30, 2026 and March 31, 2026, respectively)	589	387
Goodwill	1,623	1,623
Intangible assets, net	217	230
Deferred tax assets	425	375
Non-current portion of contract assets	366	320
Other non-current assets	246	312
Total non-current assets	4,857	4,467
Total assets	11,196	10,703
Current liabilities:
Accrued compensation and benefits	156	154
Tax liabilities	114	106
Contract liabilities (including contract liabilities from related parties of $29 and $36 as of June 30, 2026 and March 31, 2026, respectively)	200	294
Operating lease liabilities	41	39
Other current liabilities (including payables to related parties of $30 and $20 as of June 30, 2026 and March 31, 2026, respectively)	696	447
Total current liabilities	1,207	1,040
Non-current liabilities:
Non-current portion of accrued compensation	33	32
Deferred tax liabilities	23	39
Non-current portion of contract liabilities (including non-current portion of contract liabilities from related parties of	739	752
Non-current portion of operating lease liabilities	423	393
Other non-current liabilities	141	161
Total non-current liabilities	1,359	1,377
Total liabilities	2,566	2,417
Commitments and contingencies (Note 13)
Shareholders’ equity:
Ordinary shares, $0.001 par value; 1,111 shares authorized and 1,068 shares issued and outstanding as of June 30, 2026; and 1,097 shares authorized and 1,064 shares issued and outstanding as of March 31, 2026	2	2
Additional paid-in capital	3,538	3,467
Accumulated other comprehensive income (loss)	373	370
Retained earnings	4,717	4,447
Total shareholders’ equity	8,630	8,286
Total liabilities and shareholders’ equity	$ 11,196	$ 10,703

Balance Sheet Components (Tables)

3 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Research and development tax credit receivables	$	130	$	120
Prepayments	228		169
Other receivables	93		69
Total prepaid expenses and other current assets	$	451	$	358

Schedule of Accrued Compensation and Benefits

Accrued compensation and benefits consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Accrued bonuses and commissions	$	5	$	26
Accrued vacation and sabbatical	113		114
Accrued salaries and fringe benefits	9		7
Employee Stock Purchase Plan liability	29		7

Total accrued compensation and benefits	$	156	$	154

Schedule of Other Current Liabilities

Other current liabilities consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Employee related payroll taxes and payables (1)	$	375	$	119
Accrued expenses and fees	192		145
Electronic design automation liabilities	56		78
Trade payables (including payables to related parties of $30 and $20 as of June 30, 2026 and March 31, 2026, respectively)	52		80

Finance lease liabilities	21		25
Total other current liabilities	$	696	$	447

Schedule of Other Noncurrent Liabilities

Other non-current liabilities consist of:


	As of
(in millions)	June 30, 2026		March 31, 2026
Electronic design automation liabilities	$	92	$	97
Other non-current liabilities	49		64
Total other non-current liabilities	$	141	$	161

Acquisitions	3 Months Ended
Acquisitions	Jun. 30, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Acquisitions	4 - Acquisitions Acquisitions In October 2025, the Company entered into a definitive agreement to acquire all of the outstanding equity interests of DreamBig Semiconductor, Inc. (“DreamBig”) for approximately $265.0 million in cash, subject to purchase price adjustments. The addition of DreamBig’s advanced networking capabilities, technology, and engineering expertise is expected to enhance the Company’s portfolio and help it deliver more complete solutions. On July 1, 2026, the Company completed the acquisition of DreamBig. See Note 16 - Subsequent Events, for further details.

- Definition

The entire disclosure for business combination.

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+ Details

Shareholders' Equity	3 Months Ended
Shareholders' Equity	Jun. 30, 2026
Equity [Abstract]
Shareholders' Equity	9 - Shareholders’ Equity Employee Benefit Trust In September 2023, the Company established the EBT, constituted by a trust deed entered into by the Company and a professional trustee, with the principal purpose to facilitate the efficient and flexible settlement of share-based compensation arrangements with employees. The Company has the power to appoint and remove the trustee and therefore, consolidates the trust. The EBT may acquire newly issued ordinary shares or American Depositary Shares (“ADSs”) of the Company at nominal value or the trustee of the EBT has the power to acquire ordinary shares or ADSs of the Company in the open market, which purchases may be funded by one or more loans from the Company to the EBT or non-repayable gifts made by the Company to the EBT. As of June 30, 2026 and March 31, 2026, the EBT held a nominal number of ADSs, which were purchased from the Company at par value. The market value of ADSs held by the EBT as of June 30, 2026 and March 31, 2026 was $9.5 million and $2.2 million, respectively. The ADSs held by the EBT as of March 31, 2026 were, and the ADSs held by the EBT as of June 30, 2026 are expected to be, transferred out of the EBT in order to settle vesting of share-based compensation for employees. As the EBT is consolidated by the Company, ordinary shares or ADSs held by the EBT are considered authorized and issued but not outstanding for the computation of earnings per share.

- Definition

The entire disclosure for equity.

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+ Details

Net Income (Loss) Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Earnings Per Share [Abstract]
Net income (loss)	$ 270	$ 130
Weighted average ordinary shares used to calculate basic net income (loss) per share (in shares)	1,066	1,058
Equity-classified shared-based awards (in shares)	12	7
Weighted average ordinary shares used to calculate diluted net income (loss) per share (in shares)	1,078	1,065
Income (loss) per share attributable to ordinary shareholders — basic
Net income (loss) per ordinary share - basic (in dollars per share)	$ 0.25	$ 0.12
Income (loss) per share attributable to ordinary shareholders — diluted
Net income (loss) per ordinary share - diluted (in dollars per share)	$ 0.25	$ 0.12

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Condensed Consolidated Income Statements - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Total revenue	$ 1,289.0	$ 1,053.0
Cost of sales	(36.0)	(30.0)
Gross profit (loss)	1,253.0	1,023.0
Research and development	(838.0)	(650.0)
Selling, general and administrative	(317.0)	(259.0)
Disposal, restructuring and other operating expenses, net	(7.0)	0.0
Total operating expenses	(1,162.0)	(909.0)
Operating income (loss)	91.0	114.0
Income (loss) from equity investments, net	128.0	4.0
Interest income, net	31.0	27.0
Other non-operating income (loss), net	3.0	1.0
Income (loss) before income taxes	253.0	146.0
Income tax benefit (expense)	17.0	(16.0)
Net income (loss)	$ 270.0	$ 130.0
Net income (loss) per share attributable to ordinary shareholders
Basic (in dollars per share)	$ 0.25	$ 0.12
Diluted (in dollars per share)	$ 0.25	$ 0.12
Weighted average ordinary shares outstanding
Basic (in shares)	1,066	1,058
Diluted (in shares)	1,078	1,065
Nonrelated Party
Total revenue	$ 901.0	$ 725.0
Related Party
Total revenue	$ 388.0	$ 328.0

Share-based Compensation

3 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Share-based Compensation

10 - Share-based Compensation

RSUs and performance share units (“PSUs”) were granted to employees, certain executive officers, and non-executive directors of the Company and require continuous service through the vesting date.

The Company expenses share-based compensation over the requisite service period of the awards, which is generally equivalent to the vesting term. Compensation cost is recorded only for those awards expected to vest.

The fair value of RSUs is determined on the date of grant for equity-classified awards.

The Company estimates forfeitures based on employee level, economic conditions, time remaining to vest and historical forfeiture experience.

Restricted Share Units – 2022 Arm Limited RSU Award Plan (“2022 RSU Plan”)

The table below identifies the award activity under the 2022 RSU Plan:


(in millions, except per award amount)	Awards	Weighted Average Grant Date Fair Value Per Award
Outstanding as of March 31, 2026	1	$	59.59

Vested	(1)	$	65.83

Outstanding and expected to vest as of June 30, 2026	0	$	50.20

As of June 30, 2026, there was $0.1 million of total unrecognized compensation cost related to awards issued under the 2022 RSU Plan, which are expected to be recognized over a weighted-average period of 0.1 years. There were no liability-classified RSUs under the 2022 RSU Plan.

Omnibus Incentive Plan

In August 2023, the Company’s Board of Directors adopted the Arm Holdings plc 2023 Omnibus Incentive Plan (the “Omnibus Incentive Plan”), which became effective in September 2023. The maximum number of ordinary shares that may be issued under the Omnibus Incentive Plan is equal to the sum of (i) 20,500,000 ordinary shares and (ii) an annual increase on April 1 of each year beginning on April 1, 2024 and ending on April 1, 2028, equal to the lesser of (A) 2% of the aggregate number of ordinary shares outstanding on March 31 of the immediately preceding fiscal year and (B) such smaller number of ordinary shares as determined by the Company’s Board of Directors or the Remuneration Committee of the Board of Directors (the “Remuneration Committee”).

In October 2023, the Company started to grant RSUs and PSUs under the Omnibus Incentive Plan to employees, including executives of the Company. The RSUs and PSUs granted neither carry rights to dividends nor voting rights until the shares are issued or transferred to the recipient. The Omnibus Incentive Plan allows for either cash or share settlement of the awards by tranche, if applicable, at the discretion of the Remuneration Committee. At the time of issuance, the Company intended to settle the RSUs and PSUs in shares at the vesting date and such awards are accounted for as equity-classified awards. The RSUs were granted to existing employees and new hires of the Company and its subsidiaries, Arm Technology Israel Ltd. and Arm France SAS, and vest in tranches, require continuous service through the vesting date and are subject to graded vesting over a period of three to four years. RSUs granted to employees and new hires of subsidiaries in Israel and France substantially share the same terms as the existing RSUs under the 2022 RSU Plan with differences limited to the vesting schedules and, in the case of grants to hires of subsidiaries in France, holding period. PSUs were awarded to executives of the Company and include a portion that vests over a three-year continuous service period and another portion that is subject to continuous service and satisfaction of certain Company performance conditions. The time-based portion of the PSUs vest over a three-year period. The PSUs that are subject to continuous service and satisfaction of certain Company performance conditions vest upon the satisfaction of performance metrics as established for each one-year performance period and have the potential to vest between 0% and 200% of the original award amount depending on the achievement of annual performance metrics.

In accordance with the terms of the Omnibus Incentive Plan, on April 1, 2026, the total number of ordinary shares available for issuance under the Omnibus Incentive Plan and the ESPP (as defined below) increased by an aggregate of 13,821,271 ordinary shares as determined by the Remuneration Committee.

During the three months ended June 30, 2026, the Company granted PSUs under the Omnibus Incentive Plan with financial, strategic, and relative total shareholder return (“Relative TSR”) as the performance measures. The portion of PSUs granted with Relative TSR as the performance measures are assessed over a three-year performance period relative to the S&P 500 IT Sector Index and have the potential to vest between 0% and 200% of the original award amount depending

on the Relative TSR achievement. To determine the grant date fair value of the market conditions component of the awards with Relative TSR-based performance measures, a Monte Carlo simulation model is used based on the Company’s assumptions, which include a risk-free interest rate and implied volatility. The Company recognizes compensation cost for the Relative TSR awards over the requisite service period based on the grant date fair value.

In March 2026, the Company expanded its offerings to include Arm-designed silicon products with the introduction of the Arm AGI CPU. In this context, the Remuneration Committee has proposed a revised Remuneration Policy which incorporates two updates for equity awards: (i) adjusting the Performance Share Unit (“PSU”) maximum from 125% to 200% for the Company’s Chief Executive Officer, and (ii) introducing a new Value Creation Plan (“VCP”) PSU award for the Chief Executive Officer (the “VCP Award”). During the three months ended June 30, 2026, the Company granted this one-time VCP Award consisting of 425,000 PSUs to the Chief Executive Officer under the Omnibus Incentive Plan. The VCP Award is conditional on shareholder approval of the revised Remuneration Policy to be voted on at the Company’s 2026 Annual General Meeting. The VCP Award is subject to both service and market conditions and is eligible to vest upon achievement of specified market capitalization milestones by March 31, 2031. The award has a maximum vesting potential of 100% of the granted PSUs and vests in tranches through April 1, 2033, subject to continued employment. To determine the grant date fair value of the VCP Award, a Monte Carlo simulation model is used based on the Company’s assumptions, which include a risk-free interest rate and implied volatility. The Company recognizes compensation cost for the VCP Award over the requisite service period based on the grant date fair value.

The table below identifies all award activity under the Omnibus Incentive Plan:


(in millions, except per award amount)	Awards (1)	Weighted Average Grant Date Fair Value Per Award (1)
Outstanding as of March 31, 2026	18	$	120.64
Granted	11	$	208.44
Vested	(4)	$	117.88
Cancelled and forfeited	(1)	$	141.16
Outstanding and expected to vest as of June 30, 2026	24	$	159.77

(1) Awards and weighted average grant date fair value per award exclude shares related to PSUs that currently have no grant date as the future performance objectives have not yet been defined and/or communicated to participants of the plan.

Other than PSUs with Relative TSR-based performance measures and the VCP Award with market capitalization-based performance measures, the Company uses the closing ADS price of the Company on the date of grant as the fair value of awards. As of June 30, 2026, there was $3,621.9 million of total unrecognized compensation cost related to awards issued under the Omnibus Incentive Plan, which is expected to be recognized over a weighted-average period of 1.6 years.

Employee Stock Purchase Plan

In August 2024 and September 2024, the Company’s Board of Directors adopted and the Company’s shareholders approved, respectively, the Employee Stock Purchase Plan (“ESPP”). The maximum number of shares that may be granted under the ESPP is equal to the number of shares available for issuance under the Omnibus Incentive Plan, and each share granted under the ESPP reduces the number of shares available for issuance under the Omnibus Incentive Plan and its sub-plans by one share. The ESPP provides for one or more offering periods, and each offering will be for any period of between six and 24 calendar months as determined by the Remuneration Committee. Subject to any limitations contained therein, the ESPP allows eligible employees to purchase the Company’s ordinary shares or ADSs through payroll deductions of up to 10% of eligible compensation, subject to a cap of $25,000 per year (as calculated based on applicable tax rules). Eligible employees may be granted ESPP options to acquire ordinary shares or ADSs at a fixed price, which may be set at a discount of up to 15% of the lesser of (1) the fair market value of the ordinary shares or ADSs on the day before the offering period start date or (2) the fair market value of the ordinary shares or ADSs on the day before the purchase date at the end of the offering period. Employees may withdraw from the ESPP during specified periods and

receive a full refund of accumulated payroll contributions. Employees who cease working at the Company during an offering period are treated as withdrawing from the ESPP.

As of June 30, 2026, there was $5.2 million of total unrecognized compensation cost related to the ESPP expected to be recognized over the remaining term of the offering period ending on August 31, 2026. As of June 30, 2026, 0.7 million ordinary shares or ADSs have been purchased under the ESPP.

Share-based Compensation Cost

A summary of share-based compensation cost recognized in the Condensed Consolidated Income Statements is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Cost of sales	$	9	$	7
Research and development	247		174
Selling, general and administrative	87		60
Pre-tax share-based compensation cost	$	343	$	241
Less: income tax effect	72		46
Net share-based compensation cost	$	271	$	195

For the three months ended June 30, 2026, $2.0 million of share‑based compensation cost was capitalized as internal‑use software. No share-based compensation cost was capitalized for the three months ended June 30, 2025.

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 270	$ 130
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(2)	23
Net change in unrealized gains and (losses) on available-for-sale debt securities	4	0
Net change of the effective portion of designated cash flow hedges	1	16
Total comprehensive income (loss)	$ 273	$ 169

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Ordinary Shares	Additional Paid- in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Balance, beginning of period (in shares) at Mar. 31, 2025		1,057
Balance, beginning of period at Mar. 31, 2025	$ 6,839	$ 2	$ 2,922	$ 372	$ 3,543
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	130				130
Other comprehensive income (loss), net of tax	39			39
Share-based compensation cost	241		241
Issuance of vested shares from share-based payment arrangements (in shares)		5
Tax withholding on vested shares from share-based payment arrangements (in shares)		(3)
Tax withholding on vested shares from share-based payment arrangements	(242)		(242)
Balance, ending of period (in shares) at Jun. 30, 2025		1,059
Balance, ending of period at Jun. 30, 2025	$ 7,007	$ 2	2,921	411	3,673
Balance, beginning of period (in shares) at Mar. 31, 2026	1,064	1,064
Balance, beginning of period at Mar. 31, 2026	$ 8,286	$ 2	3,467	370	4,447
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	270				270
Other comprehensive income (loss), net of tax	3			3
Share-based compensation cost	345		345
Issuance of vested shares from share-based payment arrangements (in shares)		5
Tax withholding on vested shares from share-based payment arrangements (in shares)		(1)
Tax withholding on vested shares from share-based payment arrangements	$ (274)		(274)
Balance, ending of period (in shares) at Jun. 30, 2026	1,068	1,068
Balance, ending of period at Jun. 30, 2026	$ 8,630	$ 2	$ 3,538	$ 373	$ 4,717

- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 10
-Name Accounting Standards Codification
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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

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+ Details

Revenue (Tables)

3 Months Ended

Jun. 30, 2026

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

A summary of the Company’s disaggregated revenue is as follows:


	Three Months Ended June 30,
	External Customers				Related Parties				Total
(in millions)	2026		2025		2026		2025		2026		2025
License and Other Revenue(1)	$	310	$	255	$	264	$	213	$	574	$	468
Royalty Revenue	591		470		124		115		715		585
Total Revenue	$	901	$	725	$	388	$	328	$	1,289	$	1,053

(1) Includes over-time revenue of $288 million and $221 million, and point-in-time revenue of $286 million and $247 million, for the three months ended June 30, 2026 and 2025, respectively.

Schedule of Revenue from External Customers by Geographic Areas

The following table summarizes information pertaining to revenue from customers based on the principal headquarters address by geographic regions:


	Three Months Ended June 30,
(in millions)	2026		2025
United States	$	388	$	382
PRC (1)	200		209
Japan	276		154
Taiwan	176		146
Republic of Korea	117		69
Other countries	132		93
Total Revenue	$	1,289	$	1,053

(1) “PRC” means the People’s Republic of China, including the Hong Kong Special Administrative Region and the Macau Special Administrative Region, but excluding Taiwan.

Schedule of Accounts Receivable

A summary of the components of accounts receivable, net is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026


Accounts receivable	$	1,150	$	1,331
Allowance for current expected credit losses	(31)		(31)
Total accounts receivable, net	$	1,119	$	1,300

Schedule of Allowance for Credit Losses

A summary of the movement in the allowance for current expected credit losses is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Beginning balance	$	31	$	20
Additional (reversal of) provision	—		(1)


Ending balance	$	31	$	19

Schedule of Reconciliation of Contract Liabilities

A reconciliation of the movement in contract liabilities is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Beginning balance April 1,	$	1,046	$	911
Customer prepayment and billing in advance of performance	110		581
Revenue recognized in the period that was included in the contract liability balance at the beginning of the period	(138)		(149)
Revenue recognized in the period that was included in the contract liability balance during the period	(79)		(297)

Ending balance	$	939	$	1,046

Fair Value

3 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Fair Value

8 - Fair Value

To provide an indication about the reliability of the inputs used in determining fair value, the Company classifies its fair value financial instruments into the three levels prescribed under GAAP. An explanation of each level follows the tables and qualitative disclosures below. There were no transfers between fair value measurement levels for any periods presented.

The following table presents the Company’s fair value hierarchy for assets and liabilities measured and recognized at fair value, excluding investments where the NAV practical expedient has been elected, on a recurring basis:


	As of June 30, 2026								As of March 31, 2026
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	2,487	$	—	$	—	$	2,487	$	2,456	$	—	$	—	$	2,456
Short-term investments (1)	830		—		—		830		850		—		—		850
Equity investments (2)	290		—		52		342		96		—		57		153
Available-for-sale debt securities	—		—		18		18		—		—		13		13


Total financial assets	$	3,607	$	—	$	70	$	3,677	$	3,402	$	—	$	70	$	3,472

Financial liabilities
Foreign currency forward contracts	$	—	$	9	$	—	$	9	$	—	$	10	$	—	$	10
Total financial liabilities	$	—	$	9	$	—	$	9	$	—	$	10	$	—	$	10

(1)Short-term investments represent term deposits with banks with a maturity between 3 and 12 months.

(2)In accordance with ASC Subtopic 820-10, Fair Value Measurements, investments that are measured at fair value using the NAV practical expedient are not classified in the fair value hierarchy.

The following tables summarize changes in the fair value, along with other activity associated with the Company’s Level 3 financial assets. See below for a description of the valuation techniques and inputs used in the fair value measurement of Level 3 equity method investments.

Equity Method Investments


	Three Months Ended June 30,
(in millions)	2026		2025
Fair value of financial assets at the beginning of the period	$	57	$	200

Fair value gains (losses) recognized in the Condensed Consolidated Income Statements	(5)		—


Fair value at the end of the period	$	52	$	200

The Company elected the fair value option in accordance with the guidance in ASC 825, Financial Instruments (“ASC 825”) for its investments in Acetone Limited. The Company initially computed the fair value for its investments consistent with the methodology and assumptions that market participants would use in their estimates of fair value with the assistance of a third-party valuation specialist or based on inputs from the investee. The fair value computation is updated on a quarterly basis. The investments are classified within Level 3 in the fair value hierarchy because the Company estimates the fair value of the investments using (i) the market-calibration approach based on the guideline public company method, or (ii) subject to availability of sufficient information, the income approach based on the discounted cash flow method.

The market-calibration approach considers valuation multiples that are calibrated to the valuation as of the prior valuation date (i.e., quarterly) based on: (a) changes in the broader market or industry; (b) changes in the guideline public companies; and (c) changes in the company’s operating and financial performance. The fair value computation under this approach includes a key assumption for the range of valuation multiples (i.e., enterprise value or revenue), which requires significant professional judgment by the valuation specialist and is based on observable inputs (e.g., market data) and unobservable inputs (e.g., market participant assumptions).

The following tables provide quantitative information related to certain key assumptions utilized in the valuation of equity method investments accounted for under the fair value option:

As of June 30, 2026

(in millions)

Fair Value

Valuation Technique

Unobservable Inputs

Range of Estimates

Equity Method Investments

$52

Acetone Limited – Market-Calibration or discounted cash flow

LTM Revenue Multiple

0.8x - 1.0x

As of March 31, 2026

(in millions)

Fair Value

Valuation Technique

Unobservable Inputs

Range of Estimates

Equity Method Investments

$57

Acetone Limited – Market-Calibration or discounted cash flow

LTM Revenue Multiple

0.9x - 1.1x

Currency Exchange Contracts

For currency exchange contracts, these contracts are valued at the present value of future cash flows based on forward exchange rates at the balance sheet date.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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+ Details

Share-based Compensation - Schedule of Award Activity Under the 2022 RSU Plan (Details) - Restricted Stock Units (RSUs) - 2022 RSU Plan shares in Millions	3 Months Ended
	Jun. 30, 2026 $ / shares shares
Awards
Outstanding, beginning of period (in shares) \| shares	1
Vested (in shares) \| shares	(1)
Outstanding, ending of period (in shares) \| shares	0
Weighted Average Grant Date Fair Value Per Award
Outstanding, beginning of period (in dollars per share) \| $ / shares	$ 59.59
Vested (in dollars per share) \| $ / shares	65.83
Outstanding, ending of period (in dollars per share) \| $ / shares	$ 50.20

Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Research and development tax credit receivables	$ 130	$ 120
Prepayments	228	169
Other receivables	93	69
Total prepaid expenses and other current assets	$ 451	$ 358

Equity Investments - Schedule of Income (Loss) from Equity Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Investments, All Other Investments [Abstract]
Equity investments in publicly listed companies	$ 126	$ 4
Equity method investments	(8)	(1)
Non-marketable equity securities (includes NAV)	10	1
Total income (loss) from equity investments, net	$ 128	$ 4

- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

+ References + Details

Description of Business and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the U.S. (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial information. Certain information and note disclosures normally included in the consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in the accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto as of and for the fiscal year ended March 31, 2026, in our Annual Report. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting of only normal recurring adjustments, which are necessary for the fair statement of the unaudited condensed consolidated balance sheets, income statements, statements of comprehensive income, shareholders’ equity and cash flows for these interim periods. The results for the interim periods are not necessarily indicative of results for the full fiscal year.
Principles of Consolidation	Principles of Consolidation The accompanying financial statements include the accounts of the Company, its wholly owned subsidiaries and the Arm Employee Benefit Trust (the “EBT”). All intercompany balances and transactions have been eliminated in consolidation. The financial statements consolidate all of the Company’s affiliates, and the entities where the Company holds a controlling financial interest, because the Company holds a majority voting interest. The Company reevaluates whether there is a controlling financial interest in all entities when rights and interests change.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant items subject to such estimates include, but are not limited to, revenue recognition, allowance for expected credit losses, income taxes, share-based compensation, impairment considerations for long-lived assets, fair value estimates and impairment for investments. The Company evaluates these estimates on an ongoing basis and revises estimates as circumstances change. The Company bases its estimates on historical experience, anticipated results, trends, and other various assumptions that it believes are reasonable. Actual results could differ materially from the Company’s estimates.
Recently adopted accounting pronouncements and Recently issued accounting pronouncements not yet adopted	Recently adopted accounting pronouncements Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses for Accounts Receivable and Contract Assets: In July 2025, the FASB issued ASU 2025-05, which provides a practical expedient to measure credit losses on current accounts receivable and current contract assets under Accounting Standards Codification 606, Revenue from Contracts with Customers. The practical expedient assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. ASU 2025-05 is effective for the Company’s fiscal year ending March 31, 2027, and interim periods in the same annual reporting period. Early adoption is permitted. The Company adopted ASU 2025-05 on a prospective basis in the fiscal year beginning April 1, 2026. The adoption of ASU 2025-05 did not have a material impact on the Company’s consolidated financial statement disclosures. Recently issued accounting pronouncements not yet adopted Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), Disaggregation of Income Statement Expenses: In November 2024, the FASB issued ASU 2024-03, which requires incremental disclosures to disaggregate income statement expense items. In January 2025, the FASB issued ASU No. 2025-01, Clarifying the Effective Date, which revised the effective date of ASU No. 2024-03 for interim periods. ASU 2024-03 and ASU 2025-01 are effective for the Company’s fiscal year ending March 31, 2028, and interim periods within our fiscal years beginning after April 1, 2028. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2024-03 and ASU 2025-01 on its consolidated financial statement disclosures. Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606) – Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract: In September 2025, the FASB issued ASU 2025-07, which refines the scope for derivatives to clarify which contracts are subject to derivative accounting and clarifies share-based noncash consideration from a customer in a revenue contract. ASU 2025-07, which can be applied prospectively or with a modified transition approach, is effective for the Company’s fiscal year ending March 31, 2028, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-07 on its consolidated financial statements. Derivatives and Hedging (Topic 815) – Hedge Accounting Improvements: In November 2025, the FASB issued ASU 2025-09, which refines hedge accounting to more closely align an entity’s financial reporting with the economics of risk management activities, including expanded eligibility to hedge groups of forecasted transactions, introduces a new model for “choose-your-rate” debt instruments, and certain changes that avoid automatic redesignation when the hedged risk is revised if effectiveness is maintained. ASU 2025-09, which has to be applied prospectively for all hedging relationships, is effective for the Company’s fiscal year ending March 31, 2028, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-09 on its consolidated financial statements. Government Grants (Topic 832) – Accounting for Government Grants Received by Business Entities: In December 2025, the FASB issued ASU 2025-10, which establishes the accounting and presentation guidance for government grants received by business entities. ASU 2025-10, which can be applied modified prospectively, modified retrospectively, or retrospectively, is effective for the Company’s fiscal year ending March 31, 2030, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-10 on its consolidated financial statements. Interim Reporting (Topic 270) – Narrow-Scope Improvements: In December 2025, the FASB issued ASU 2025-11, which clarifies when ASC 270 applies and adds a comprehensive list of interim disclosure requirements from other Codification topics. ASU 2025-11 also introduces a disclosure principle requiring entities to disclose events since the last annual period that have a material impact, and specifies the form and content of condensed interim financial statements. ASU 2025-11, which can be applied prospectively or retrospectively to any or all prior periods presented, is effective for the Company’s fiscal year ending March 31, 2029, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-11 on its consolidated financial statements.
Revenue Recognition	Revenue Recognition Revenue for the Company’s major product offerings consists of the following: License and Other Revenue •Intellectual property license — The Company generally licenses IP under non-exclusive license agreements that provide usage rights for specific applications for a finite or perpetual term. These licenses are made available electronically to address the customer-specific business requirements. These arrangements generally have distinct performance obligations that consist of transferring the licensed IPs, version extensions of architecture IP or releases of specified IPs, and support services. Support services consist of a stand-ready obligation to provide technical support, patches, and bug fixes over the support term. Where arrangements include royalty buydowns or upfront minimum royalty commitments, the Company treats them as fixed contract consideration under licensing revenue. Revenue allocated to the IP license is recognized at a point in time upon the delivery or beginning of the license term, whichever is later. Revenue allocated to distinct version extensions of architecture IP or releases of specified IP, excluding when-and-if-available minor updates over the support term, are recognized at a point in time upon the delivery or beginning of license term, whichever is later. Certain license agreements provide customers with the right to access a library of current and future IPs on an unlimited basis over the contractual period depending on the terms of the applicable contract. These licensing arrangements represent stand-ready obligations in that the timing of the delivery of the underlying IPs is within the control of the customer and the extent of use in any given period does not diminish the remaining performance obligation. The contract consideration related to these arrangements is recognized ratably over the term of the contract in line with when the control of the performance obligations is transferred. Certain subscription license agreements include unspecified future IPs that are provided on a when-and-if-available basis, representing a stand-ready obligation. The contract consideration allocated to the stand-ready obligation is recognized on a ratable basis over the term of the contract, commencing upon the later of the effective date of the agreement and the transfer of the initial available IP license. •Software sales, including development systems — Sales of software, including development systems, which are not specifically designed for a given license (such as off-the-shelf software), are recognized upon delivery when control has been transferred and the customer can begin to use and benefit from the license. •Professional services — Services (such as training, professional and design services) that the Company provides, which are not essential to the functionality of the IP, are separately stated and priced in the contract and accounted for separately. Training revenue is recognized as services are performed. Revenue from professional and design services is recognized over time using an input method based on engineering labor hours expended to date relative to the estimated total effort required. For such professional and design services, the Company has an enforceable right to payment for performance completed to date, which includes a reasonable profit margin and the performance of such services does not create an asset with an alternative use. In certain arrangements, the Company also provides customers with professional and design services, as a stand-ready obligation, that are recognized on a ratable basis over the term of the contract. •Support and maintenance — Support and maintenance is a stand-ready obligation to the customer that is both provided and consumed simultaneously. Revenue is recognized on a straight-line basis over the period for which support and maintenance is contractually agreed pursuant to the license. •Third-party arrangements — In certain arrangements, the Company arranges for third parties to provide products or services to customers. Revenue is recognized on a gross basis when the Company controls the product or service, and on a net margin basis when it acts as an agent. In agent arrangements, control passes directly from the third party to the customer, and the Company bears no inventory or performance risk. Royalty Revenue For most IP license agreements, royalties are collected on products that incorporate the Company’s IP. The Company applies the royalty exception, under which revenue is recognized when the subsequent sale or usage occurs, assuming control of the license to which the royalty relates has transferred to the customer. Accordingly, royalties are recognized on an accrual basis in the quarter in which the customer ships their products, based on the Company’s technology that it contains. This estimation process for the royalty revenue accrual is based on a combination of methodologies, including the use of historical sales trends and macroeconomic factors for predictive analysis, the analysis of customer royalty reports and their sales trends and forecasts, as well as data and forecasts from third-party industry research providers. Data considered includes revenue, unit shipments, average selling price, product mix, market share and market penetration. Adjustments to revenue are required in subsequent periods to reflect changes in estimates as new information becomes available, primarily resulting from actual amounts subsequently reported by the licensees in the period following the accrual, including royalty audit resolutions. Remaining Performance Obligations Remaining performance obligations represent the transaction price allocated to performance obligations that are unsatisfied, or partially unsatisfied, which includes unearned revenue and amounts that will be invoiced and recognized as revenue in future periods. The Company has elected to exclude potential future royalty receipts from the disclosure of remaining performance obligations. In certain arrangements, the Company’s right to consideration may not correspond directly with the performance of obligations.
Equity Method Investments	The Company elected the fair value option in accordance with the guidance in ASC 825, Financial Instruments (“ASC 825”) for its investments in Acetone Limited. The Company initially computed the fair value for its investments consistent with the methodology and assumptions that market participants would use in their estimates of fair value with the assistance of a third-party valuation specialist or based on inputs from the investee. The fair value computation is updated on a quarterly basis. The investments are classified within Level 3 in the fair value hierarchy because the Company estimates the fair value of the investments using (i) the market-calibration approach based on the guideline public company method, or (ii) subject to availability of sufficient information, the income approach based on the discounted cash flow method. The market-calibration approach considers valuation multiples that are calibrated to the valuation as of the prior valuation date (i.e., quarterly) based on: (a) changes in the broader market or industry; (b) changes in the guideline public companies; and (c) changes in the company’s operating and financial performance. The fair value computation under this approach includes a key assumption for the range of valuation multiples (i.e., enterprise value or revenue), which requires significant professional judgment by the valuation specialist and is based on observable inputs (e.g., market data) and unobservable inputs (e.g., market participant assumptions).
Currency Exchange Contracts	Currency Exchange Contracts For currency exchange contracts, these contracts are valued at the present value of future cash flows based on forward exchange rates at the balance sheet date.

- Definition

Disclosure of accounting policy for its derivative instruments and hedging activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

Disclosure of accounting policy for revenue from contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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- Definition

Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Jun. 30, 2026
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13 - Commitments and Contingencies Litigation From time to time, the Company may be a party to litigation, government investigations or regulatory proceedings in the ordinary course of business. Because the results of any litigation or other legal proceedings are uncertain, the Company’s financial position, results of operations or cash flows could be materially affected by an unfavorable resolution of one or more of these proceedings, claims, or demands. However, management does not currently believe the ultimate resolution of any pending legal matters is reasonably possible to have a material adverse effect on the Company’s financial position, results of operations or cash flows. The Company accrues for loss contingencies when it is both probable that it will incur the loss and when the Company can reasonably estimate the amount of the loss or range of loss. No material amounts related to litigation settlements were recognized in the three months ended June 30, 2026 and 2025. Purchase Obligations In April 2026, the Company entered into an amendment with a cloud computing web services provider to increase the total purchase commitment by $305.0 million through 2029.

Commitments and Contingencies (Details) - USD ($)	3 Months Ended
Commitments and Contingencies (Details) - USD ($)	Jun. 30, 2026	Jun. 30, 2025	Apr. 30, 2026
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual reversal	$ 0	$ 0
Purchase obligation			$ 305,000,000.0

Equity Investments (Tables)

3 Months Ended

Jun. 30, 2026

Investments, All Other Investments [Abstract]

Schedule of Equity Investments

A summary of the components of equity investments is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Equity method investments under fair value option	$	141	$	148
Equity investments in publicly listed companies	290		96
Equity method investments under equity method	12		13
Non-marketable equity securities	146		130
Total equity investments	$	589	$	387

Income (loss) from equity investments, net is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Equity investments in publicly listed companies	$	126	$	4
Equity method investments (1)	(8)		(1)
Non-marketable equity securities (includes NAV)	10		1
Total income (loss) from equity investments, net	$	128	$	4

(1)Includes equity method investments where the Company elected the fair value option, including those under the net asset value (“NAV”) practical expedient, along with investments accounted for under the equity method.

Schedule of Unrealized Gain (Loss) on Investments

The components of gains and (losses), which primarily include realized and unrealized gains and losses on non-marketable securities inclusive of those measured under the NAV practical expedient, are as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Observable price adjustments on non-marketable equity securities (includes NAV)	$	10	$	1


Total income (loss) from equity investments in non-marketable securities, net	$	10	$	1

Schedule of Realized Gain (Loss) on Investments


	Three Months Ended June 30,
(in millions)	2026		2025
Observable price adjustments on non-marketable equity securities (includes NAV)	$	10	$	1


Total income (loss) from equity investments in non-marketable securities, net	$	10	$	1

Financial Instruments

3 Months Ended

Jun. 30, 2026

Receivables [Abstract]

Financial Instruments

6 - Financial Instruments

Loans and Other Receivables

Loans and other receivables carried at amortized cost, included in prepaid expenses and other current assets and other non-current assets on the Condensed Consolidated Balance Sheets, are as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Loans and other receivables carried at amortized cost
Loans receivable	$	10	$	10
Other receivables	22		17
Allowance for current expected credit losses	(3)		(3)
Loans and other receivables carried at amortized cost, net	$	29	$	24

The allowance for current expected credit losses reflects the Company’s best estimate of expected credit losses of the receivables portfolio determined on the basis of historical experience, current information, and forecasts of future economic conditions.

Available-For-Sale Debt Securities

In December 2025, the Company completed a transaction to acquire an equity stake in a private entity by subscribing to its preferred shares and paid total consideration of $13.8 million. The Company recorded this investment as an available-for-sale debt security in other non-current assets on the Condensed Consolidated Balance Sheets since the preferred shares purchased by the Company are redeemable at the option of the Company and are not in the substance of common stock. As of June 30, 2026, the fair value of available-for-sale debt security is $17.8 million.

Derivatives (Tables)

3 Months Ended

Jun. 30, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments

The following table presents the notional amounts of the Company’s outstanding derivative instruments:


	As of
(in millions)	June 30, 2026		March 31, 2026
Designated as cash flow hedges
Foreign currency forward contracts	$	631	$	544

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following table presents the fair value of the Company’s outstanding derivative instruments:


	Derivative Assets				Derivative Liabilities
	As of				As of
(in millions)	June 30, 2026		March 31, 2026		June 30, 2026		March 31, 2026
Designated as cash flow hedges
Foreign currency forward contracts	$	—	$	—	$	9	$	10

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location

The following table presents net gains (losses) on foreign currency forward contracts designated as cash flow hedges:


	Three Months Ended June 30,
(in millions)	2026		2025
Condensed Consolidated Statements of Comprehensive Income:
Change in gains (losses) recognized in accumulated other comprehensive income (loss) on cash flow hedge derivatives	$	1	$	28
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income	—		(7)
Income tax benefit (expense) on cash flow hedges	—		(5)
Net change in fair value of the effective portion of designated cash flow hedges, net of tax (1)	$	1	$	16
Condensed Consolidated Income Statements, before tax:
Research and development	$	—	$	4
Selling, general and administrative expenses	$	—	$	3

(1) All amounts reported in accumulated other comprehensive income (loss) at the reporting date are expected to be reclassified into earnings within the next 12 months.

Revenue - Schedule of Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2026	Mar. 31, 2026
Contract With Customers, Liability [Roll Forward]
Beginning balance	$ 1,046	$ 911
Customer prepayment and billing in advance of performance	110	581
Revenue recognized in the period that was included in the contract liability balance at the beginning of the period	(138)	(149)
Revenue recognized in the period that was included in the contract liability balance during the period	(79)	(297)
Ending balance	$ 939	$ 1,046

Revenue - Schedule of Accounts Receivable, Credit Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 31	$ 20
Additional (reversal of) provision	0	(1)
Ending balance	$ 31	$ 19

Subsequent Events	3 Months Ended
Subsequent Events	Jun. 30, 2026
Subsequent Events [Abstract]
Subsequent Events	16 - Subsequent Events On July 1, 2026, the Company completed the acquisition of DreamBig, acquiring 100% of the outstanding equity interests of DreamBig in an all-cash transaction for approximately $265.0 million, subject to customary purchase price adjustments. Due to the timing of the close of the transaction, as of the date of issuance of these unaudited condensed consolidated financial statements, the acquisition accounting is not yet complete as the Company is still in the process of estimating the initial purchase price allocation. As a result, it is not practicable for the Company to disclose the preliminary allocations of the purchase consideration to the assets acquired and liabilities assumed.

Subsequent Events (Details) - DreamBig Semiconductor, Inc. - USD ($) $ in Millions		1 Months Ended
	Jul. 01, 2026	Oct. 31, 2025
Subsequent Event [Line Items]
Expected consideration to be transferred		$ 265.0
Subsequent Event
Subsequent Event [Line Items]
Equity interest acquired, percentage	100.00%
Expected consideration to be transferred	$ 265.0

Segment Information (Tables)

3 Months Ended

Jun. 30, 2026

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following table presents selected financial information with respect to the Company's single operating segment for the three months ended June 30, 2026 and 2025:


	Three Months Ended June 30,
(in millions)	2026			2025
License and Other Revenue	$	574		$	468
Royalty Revenue	715			585
Total Revenue	1,289			1,053
Less Operating Costs and Expenses:
Staff costs: Salaries, bonuses and benefits	(449)			(389)
Staff costs: Share-based compensation cost (equity settled)	(343)			(241)
Staff costs: Employer taxes related to share-based compensation	(98)			(58)
Non-staff costs:
Project materials costs, third-party fees paid to consultants, information technology, research and development expenses (excluding employee-related expenses), accounting and legal professional services fees, advertising expenses, and other corporate-related expenses	(233)			(192)
Amortization	(27)			(24)
Depreciation	(48)			(36)
Other non-staff costs	—			1
Operating income (loss)	91			114
Operating margin	7		%	11		%
Income (loss) from equity investments, net	128			4
Interest income, net	31			27
Other non-operating income (loss), net	3			1
Income (loss) before income taxes	253			146
Income tax benefit (expense)	17			(16)
Net income (loss)	$	270		$	130

- Definition

Tabular disclosure of segment reporting. Includes, but is not limited to, reconciliation of reportable segment amount to corresponding consolidated total.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
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-Section 50
-Paragraph 31
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

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+ Details

Cover Page	3 Months Ended
Cover Page	Jun. 30, 2026
Cover [Abstract]
Document Type	6-K
Entity Central Index Key	0001973239
Entity Name	ARM HOLDINGS PLC /UK
Current Fiscal Year End Date	--03-31
Document Period End Date	Jun. 30, 2026
Document Fiscal Year End Focus	2027
Document Fiscal Period Focus	Q1
Amendment Flag	false

Derivatives - Narrative (Details) £ in Millions, $ in Millions	Jun. 30, 2026 USD ($)	Jun. 30, 2026 GBP (£)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 GBP (£)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount \| £				£ 405.0
Derivative, fair value \| $			$ (9.5)
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount \| £		£ 470.0
Derivative, fair value \| $	$ (8.5)

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Balance Sheet Components - Schedule of Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Electronic design automation liabilities	$ 92	$ 97
Other non-current liabilities	49	64
Total other non-current liabilities	$ 141	$ 161

Revenue - Remaining Performance Obligations (Details) $ in Millions	Jun. 30, 2026 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations, amount	$ 2,122.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percent	24.00%
Remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percent	23.00%
Remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, period

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Accounts receivable, net	$ 1,119	$ 1,300
Contract assets	881	977
Equity method investments under fair value option	141	148
Contract liabilities	200	294
Other current liabilities	696	447
Contract liabilities noncurrent	$ 739	$ 752
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,111	1,097
Common stock, shares issued (in shares)	1,068	1,064
Common stock, shares, outstanding (in shares)	1,068	1,064
Related Party
Accounts receivable, net	$ 281	$ 270
Contract assets	577	646
Contract liabilities	29	36
Other current liabilities	30	20
Contract liabilities noncurrent	$ 23	$ 23

Net Income (Loss) Per Share

3 Months Ended

Jun. 30, 2026

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

12 - Net Income (Loss) Per Share

The following table presents a reconciliation of basic and diluted earnings per share computations for the periods presented:


	Three Months Ended June 30,
(in millions, except per share amounts)	2026		2025
Numerator:
Income (loss) attributable to ordinary shareholders — basic and diluted


Net income (loss)	$	270	$	130
Denominator:
Weighted average ordinary shares used to calculate income (loss) per share — basic	1,066		1,058
Equity-classified share-based awards	12		7
Weighted average ordinary shares used to calculate income (loss) per share — diluted	1,078		1,065
Income (loss) per share attributable to ordinary shareholders — basic


Net income (loss) per ordinary share - basic	$	0.25	$	0.12
Income (loss) per share attributable to ordinary shareholders — diluted


Net income (loss) per ordinary share - diluted	$	0.25	$	0.12
Securities excluded from diluted net income (loss) per ordinary share because their effect would have been anti-dilutive:
Restricted share units	—		1
Performance share units	1		1
Total	1		2

Net Income (Loss) Per Share (Tables)

3 Months Ended

Jun. 30, 2026

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents a reconciliation of basic and diluted earnings per share computations for the periods presented:


	Three Months Ended June 30,
(in millions, except per share amounts)	2026		2025
Numerator:
Income (loss) attributable to ordinary shareholders — basic and diluted


Net income (loss)	$	270	$	130
Denominator:
Weighted average ordinary shares used to calculate income (loss) per share — basic	1,066		1,058
Equity-classified share-based awards	12		7
Weighted average ordinary shares used to calculate income (loss) per share — diluted	1,078		1,065
Income (loss) per share attributable to ordinary shareholders — basic


Net income (loss) per ordinary share - basic	$	0.25	$	0.12
Income (loss) per share attributable to ordinary shareholders — diluted


Net income (loss) per ordinary share - diluted	$	0.25	$	0.12
Securities excluded from diluted net income (loss) per ordinary share because their effect would have been anti-dilutive:
Restricted share units	—		1
Performance share units	1		1
Total	1		2

Derivatives - Schedule of Derivative Instruments (Details) £ in Millions, $ in Millions	Jun. 30, 2026 USD ($)	Jun. 30, 2026 GBP (£)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 GBP (£)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount				£ 405.0
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		£ 470.0
Designated as Hedging Instrument \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount \| $	$ 631		$ 544

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Acquisitions (Details) $ in Millions	1 Months Ended
Acquisitions (Details) $ in Millions	Oct. 31, 2025 USD ($)
DreamBig Semiconductor, Inc.
Business Combination [Line Items]
Expected consideration to be transferred	$ 265.0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Segment Information

3 Months Ended

Jun. 30, 2026

Segment Reporting [Abstract]

Segment Information

15 - Segment Information

The Company operates as a single operating segment. The Company’s chief operating decision maker (“CODM”) is its Chief Executive Officer, who reviews financial information presented on a consolidated basis. The CODM regularly reviews income and expense items at the consolidated company (reporting segment) level and uses both operating income and net income to evaluate income generated to conclude whether and how to reinvest profits into the entity’s operations, shareholder return, acquisitions or otherwise. Both operating income and net income are also used to monitor budget versus actual results, forecasted information and in competitive analysis. The CODM does not review segment asset information to evaluate performance or allocate resources.

The following table presents selected financial information with respect to the Company's single operating segment for the three months ended June 30, 2026 and 2025:


	Three Months Ended June 30,
(in millions)	2026			2025
License and Other Revenue	$	574		$	468
Royalty Revenue	715			585
Total Revenue	1,289			1,053
Less Operating Costs and Expenses:
Staff costs: Salaries, bonuses and benefits	(449)			(389)
Staff costs: Share-based compensation cost (equity settled)	(343)			(241)
Staff costs: Employer taxes related to share-based compensation	(98)			(58)
Non-staff costs:
Project materials costs, third-party fees paid to consultants, information technology, research and development expenses (excluding employee-related expenses), accounting and legal professional services fees, advertising expenses, and other corporate-related expenses	(233)			(192)
Amortization	(27)			(24)
Depreciation	(48)			(36)
Other non-staff costs	—			1
Operating income (loss)	91			114
Operating margin	7		%	11		%
Income (loss) from equity investments, net	128			4
Interest income, net	31			27
Other non-operating income (loss), net	3			1
Income (loss) before income taxes	253			146
Income tax benefit (expense)	17			(16)
Net income (loss)	$	270		$	130

- Definition

The entire disclosure for segment reporting.

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+ Details

Description of Business and Summary of Significant Accounting Policies	3 Months Ended
	Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Summary of Significant Accounting Policies	1 - Description of Business and Summary of Significant Accounting Policies Description of Business Arm Holdings plc and its wholly owned subsidiaries (the “Company” and also referred to as “we,” “our” or “us”) is a global leader in the semiconductor industry. The Company’s principal operations and activities are the licensing, marketing, research and development of central processing unit (“CPU”) intellectual property (“IP”), graphics processing unit IP, systems IP, compute subsystems (“CSS”), and associated software, tools and other related services. In March 2026, we announced the expansion of our compute platform into production silicon products with the Arm AGI CPU. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the U.S. (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial information. Certain information and note disclosures normally included in the consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in the accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto as of and for the fiscal year ended March 31, 2026, in our Annual Report. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting of only normal recurring adjustments, which are necessary for the fair statement of the unaudited condensed consolidated balance sheets, income statements, statements of comprehensive income, shareholders’ equity and cash flows for these interim periods. The results for the interim periods are not necessarily indicative of results for the full fiscal year. Principles of Consolidation The accompanying financial statements include the accounts of the Company, its wholly owned subsidiaries and the Arm Employee Benefit Trust (the “EBT”). All intercompany balances and transactions have been eliminated in consolidation. The financial statements consolidate all of the Company’s affiliates, and the entities where the Company holds a controlling financial interest, because the Company holds a majority voting interest. The Company reevaluates whether there is a controlling financial interest in all entities when rights and interests change. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant items subject to such estimates include, but are not limited to, revenue recognition, allowance for expected credit losses, income taxes, share-based compensation, impairment considerations for long-lived assets, fair value estimates and impairment for investments. The Company evaluates these estimates on an ongoing basis and revises estimates as circumstances change. The Company bases its estimates on historical experience, anticipated results, trends, and other various assumptions that it believes are reasonable. Actual results could differ materially from the Company’s estimates. Recently adopted accounting pronouncements Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses for Accounts Receivable and Contract Assets: In July 2025, the FASB issued ASU 2025-05, which provides a practical expedient to measure credit losses on current accounts receivable and current contract assets under Accounting Standards Codification 606, Revenue from Contracts with Customers. The practical expedient assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. ASU 2025-05 is effective for the Company’s fiscal year ending March 31, 2027, and interim periods in the same annual reporting period. Early adoption is permitted. The Company adopted ASU 2025-05 on a prospective basis in the fiscal year beginning April 1, 2026. The adoption of ASU 2025-05 did not have a material impact on the Company’s consolidated financial statement disclosures. Recently issued accounting pronouncements not yet adopted Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40), Disaggregation of Income Statement Expenses: In November 2024, the FASB issued ASU 2024-03, which requires incremental disclosures to disaggregate income statement expense items. In January 2025, the FASB issued ASU No. 2025-01, Clarifying the Effective Date, which revised the effective date of ASU No. 2024-03 for interim periods. ASU 2024-03 and ASU 2025-01 are effective for the Company’s fiscal year ending March 31, 2028, and interim periods within our fiscal years beginning after April 1, 2028. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2024-03 and ASU 2025-01 on its consolidated financial statement disclosures. Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606) – Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract: In September 2025, the FASB issued ASU 2025-07, which refines the scope for derivatives to clarify which contracts are subject to derivative accounting and clarifies share-based noncash consideration from a customer in a revenue contract. ASU 2025-07, which can be applied prospectively or with a modified transition approach, is effective for the Company’s fiscal year ending March 31, 2028, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-07 on its consolidated financial statements. Derivatives and Hedging (Topic 815) – Hedge Accounting Improvements: In November 2025, the FASB issued ASU 2025-09, which refines hedge accounting to more closely align an entity’s financial reporting with the economics of risk management activities, including expanded eligibility to hedge groups of forecasted transactions, introduces a new model for “choose-your-rate” debt instruments, and certain changes that avoid automatic redesignation when the hedged risk is revised if effectiveness is maintained. ASU 2025-09, which has to be applied prospectively for all hedging relationships, is effective for the Company’s fiscal year ending March 31, 2028, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-09 on its consolidated financial statements. Government Grants (Topic 832) – Accounting for Government Grants Received by Business Entities: In December 2025, the FASB issued ASU 2025-10, which establishes the accounting and presentation guidance for government grants received by business entities. ASU 2025-10, which can be applied modified prospectively, modified retrospectively, or retrospectively, is effective for the Company’s fiscal year ending March 31, 2030, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-10 on its consolidated financial statements. Interim Reporting (Topic 270) – Narrow-Scope Improvements: In December 2025, the FASB issued ASU 2025-11, which clarifies when ASC 270 applies and adds a comprehensive list of interim disclosure requirements from other Codification topics. ASU 2025-11 also introduces a disclosure principle requiring entities to disclose events since the last annual period that have a material impact, and specifies the form and content of condensed interim financial statements. ASU 2025-11, which can be applied prospectively or retrospectively to any or all prior periods presented, is effective for the Company’s fiscal year ending March 31, 2029, and interim periods in the same annual reporting period. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2025-11 on its consolidated financial statements.

Share-based Compensation - Narrative (Details) - USD ($)		1 Months Ended					3 Months Ended
	Apr. 01, 2026	Mar. 31, 2026	Sep. 30, 2024	Aug. 31, 2024	Oct. 31, 2023	Aug. 31, 2023	Jun. 30, 2026	Jun. 30, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based payment arrangement amount capitalized							$ 2,000,000.0	$ 0
Omnibus Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized share-based compensation							$ 3,621,900,000
Unrecognized share-based compensation, recognition period							1 year 7 months 6 days
Shares authorized (in shares)						20,500,000
Annual increase in shares authorized						2.00%
Aggregate increased ordinary shares (in shares)	13,821,271
Restricted Stock Units (RSUs) \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period							3 years
Restricted Stock Units (RSUs) \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period							4 years
Restricted Stock Units (RSUs) \| 2022 RSU Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized share-based compensation							$ 100,000
Unrecognized share-based compensation, recognition period							1 month 6 days
Performance share units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting							100.00%
Performance share units \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award allocation percent		125.00%
Performance share units \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Award allocation percent		200.00%
Performance share units \| Omnibus Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period					3 years
Granted (in shares)							425,000
Performance Shares, Time Based \| Omnibus Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period					3 years
Performance Shares, Continuous Service And Performance Conditions \| Omnibus Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Service period					1 year
Performance Shares, Continuous Service And Relative TSR
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period							3 years
Performance Shares, Continuous Service And Relative TSR \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting							0.00%
Performance Shares, Continuous Service And Relative TSR \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting							200.00%
Performance Shares, Continuous Service And Relative TSR \| Omnibus Incentive Plan \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting					0.00%
Performance Shares, Continuous Service And Relative TSR \| Omnibus Incentive Plan \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting					200.00%
Employee Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized share-based compensation							$ 5,200,000
Share based compensation arrangement maximum employee subscription rate			10.00%
Maximum employee subscription amount			$ 25,000
Discount percent			15.00%
Shares issued in period (in shares)							700,000
Share-Based Compensation Arrangement By Share-Based Payment Award, Employee Stock Purchase Plan, Shares Issued, Reduction To Incentive Plan				1
Employee Stock \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Duration of each purchase period under the ESPP				6 months
Employee Stock \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Duration of each purchase period under the ESPP				24 months

Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,289	$ 1,053
Over-time revenues
Disaggregation of Revenue [Line Items]
Total Revenue	288	221
Point-in-time revenues
Disaggregation of Revenue [Line Items]
Total Revenue	286	247
Nonrelated Party
Disaggregation of Revenue [Line Items]
Total Revenue	901	725
Related Party
Disaggregation of Revenue [Line Items]
Total Revenue	388	328
License and Other Revenue
Disaggregation of Revenue [Line Items]
Total Revenue	574	468
License and Other Revenue \| Nonrelated Party
Disaggregation of Revenue [Line Items]
Total Revenue	310	255
License and Other Revenue \| Related Party
Disaggregation of Revenue [Line Items]
Total Revenue	264	213
Royalty Revenue
Disaggregation of Revenue [Line Items]
Total Revenue	715	585
Royalty Revenue \| Nonrelated Party
Disaggregation of Revenue [Line Items]
Total Revenue	591	470
Royalty Revenue \| Related Party
Disaggregation of Revenue [Line Items]
Total Revenue	$ 124	$ 115

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Fair Value - Schedule of Equity Method Investments Key Assumptions (Details) - Level 3 $ in Millions	Jun. 30, 2026 USD ($)	Mar. 31, 2026 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investments, fair value	$ 52	$ 57
Minimum \| Valuation Technique, Discounted Cash Flow \| LTM Revenue Multiple
Schedule of Equity Method Investments [Line Items]
Equity method investments, fair value option, measurement input	0.8	0.9
Maximum \| Valuation Technique, Discounted Cash Flow \| LTM Revenue Multiple
Schedule of Equity Method Investments [Line Items]
Equity method investments, fair value option, measurement input	1	1.1

- Definition

Fair value portion of investments accounted under the equity method.

+ References + Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

Fair Value (Tables)

3 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis


	As of June 30, 2026								As of March 31, 2026
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	2,487	$	—	$	—	$	2,487	$	2,456	$	—	$	—	$	2,456
Short-term investments (1)	830		—		—		830		850		—		—		850
Equity investments (2)	290		—		52		342		96		—		57		153
Available-for-sale debt securities	—		—		18		18		—		—		13		13


Total financial assets	$	3,607	$	—	$	70	$	3,677	$	3,402	$	—	$	70	$	3,472

Financial liabilities
Foreign currency forward contracts	$	—	$	9	$	—	$	9	$	—	$	10	$	—	$	10
Total financial liabilities	$	—	$	9	$	—	$	9	$	—	$	10	$	—	$	10

(1)Short-term investments represent term deposits with banks with a maturity between 3 and 12 months.

(2)In accordance with ASC Subtopic 820-10, Fair Value Measurements, investments that are measured at fair value using the NAV practical expedient are not classified in the fair value hierarchy.

Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

Equity Method Investments


	Three Months Ended June 30,
(in millions)	2026		2025
Fair value of financial assets at the beginning of the period	$	57	$	200

Fair value gains (losses) recognized in the Condensed Consolidated Income Statements	(5)		—


Fair value at the end of the period	$	52	$	200

Schedule of Fair Value Measurement Inputs and Valuation Techniques

The following tables provide quantitative information related to certain key assumptions utilized in the valuation of equity method investments accounted for under the fair value option:

As of June 30, 2026

(in millions)

Fair Value

Valuation Technique

Unobservable Inputs

Range of Estimates

Equity Method Investments

$52

Acetone Limited – Market-Calibration or discounted cash flow

LTM Revenue Multiple

0.8x - 1.0x

As of March 31, 2026

(in millions)

Fair Value

Valuation Technique

Unobservable Inputs

Range of Estimates

Equity Method Investments

$57

Acetone Limited – Market-Calibration or discounted cash flow

LTM Revenue Multiple

0.9x - 1.1x

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Income Tax Disclosure [Abstract]
Income tax benefit (expense)	$ 17.0	$ (16.0)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-URI https://asc.fasb.org/1943274/2147482964/270-10-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 12
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 10: http://www.xbrl.org/2003/role/exampleRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
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-Subparagraph (SAB Topic 6.I.7)
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-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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-Section 50
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-Publisher FASB
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 2
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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+ Details

Related Party Transactions (Details) - USD ($)	1 Months Ended		3 Months Ended		12 Months Ended
Related Party Transactions (Details) - USD ($)	Oct. 31, 2025	Feb. 28, 2023	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2022
Related Party Transaction [Line Items]
Revenue			$ 1,289,000,000	$ 1,053,000,000
Operating expenses			1,162,000,000	909,000,000
Other current liabilities			696,000,000		$ 447,000,000
Contract liabilities current			200,000,000		294,000,000
Contract liabilities noncurrent			739,000,000		752,000,000
Additional (reversal of) provision			0	(1,000,000)
Accounts receivable, allowance			31,000,000	19,000,000	31,000,000	$ 20,000,000
Contract asset, current			881,000,000		977,000,000
Contract asset, noncurrent			366,000,000		320,000,000
Accounts receivable, net			1,119,000,000		1,300,000,000
Proceeds from equity method investments			800,000	1,800,000
Related Party
Related Party Transaction [Line Items]
Revenue			388,000,000	328,000,000
Operating lease, lease income, lease payments			300,000	200,000
Other current liabilities			30,000,000		20,000,000
Contract liabilities current			29,000,000		36,000,000
Contract liabilities noncurrent			23,000,000		23,000,000
Contract asset, current			577,000,000		646,000,000
Accounts receivable, net			281,000,000		270,000,000
Related Party \| Arduino
Related Party Transaction [Line Items]
Loan receivable, noncurrent						$ 16,600,000
Proceeds from settlement of loans, including convertible loans	$ 16,900,000
Loan receivable, credit loss reversal					16,800,000
Related Party \| Cerfe Labs, Inc. \| Loans receivable
Related Party Transaction [Line Items]
Loans receivable, gross, noncurrent			3,200,000		3,200,000
IP Licensing Revenue \| Related Party
Related Party Transaction [Line Items]
Revenue			189,400,000	201,000,000.0
Net receivable			283,500,000		276,200,000
Accounts receivable, before allowance for credit loss, current			308,300,000		296,500,000
Other current liabilities			24,800,000		20,300,000
Contract liabilities current			29,000,000.0		30,300,000
Contract liabilities noncurrent			23,300,000		23,300,000
Additional (reversal of) provision			0	0
Accounts receivable, allowance			28,300,000		28,300,000
Service Share Arrangement \| Related Party
Related Party Transaction [Line Items]
Operating expenses			17,200,000	13,900,000
Contract termination costs			6,800,000
Common Control in SoftBank \| Related Party
Related Party Transaction [Line Items]
Revenue			192,900,000	126,100,000
Contract asset, current			576,100,000		645,800,000
Contract asset, noncurrent			1,100,000		0
Common Control in SoftBank \| Related Party \| Ampere
Related Party Transaction [Line Items]
Revenue			5,400,000	600,000
Other Equity Investments \| Related Party
Related Party Transaction [Line Items]
Contract liabilities current			400,000		5,400,000
Contract asset, current			500,000		500,000
Operating costs and expenses			5,000,000.0
Prepaid expense			5,000,000.0
Accounts payable			5,000,000.0
Accounts receivable, net			$ 0		$ 500,000
Linaro Agreement \| Related Party
Related Party Transaction [Line Items]
Subscription costs incurred				$ 2,300,000
Amounts of transaction		$ 4,000,000.0
Related party transaction, term		5 years
Acetone Limited
Related Party Transaction [Line Items]
Ownership percentage							10.00%
Arm China \| Acetone Limited
Related Party Transaction [Line Items]
Ownership percentage							48.20%

Fair Value - Schedule of Changes in Fair Value of Level 3 Financial Assets and Liabilities (Details) - Level 3 - Equity Method Investments, Fair Value Option - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value of financial assets at the beginning of the period	$ 57	$ 200
Fair value gains (losses) recognized in the Condensed Consolidated Income Statements	(5)	0
Fair value at the end of the period	$ 52	$ 200

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Cash flows provided by (used for) operating activities:
Net income (loss)	$ 270	$ 130
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	75	60
Deferred income taxes	(66)	(14)
(Income) loss from equity investments, net	(128)	(4)
Share-based compensation cost	343	241
Operating lease expense	16	13
Other non-cash operating activities, net	3	(5)
Changes in assets and liabilities:
Accounts receivable, net (including receivables from related parties)	181	(208)
Contract assets, net (including contract assets from related parties)	50	123
Prepaid expenses and other assets	(9)	38
Accrued compensation and benefits	3	(4)
Contract liabilities (including contract liabilities from related parties)	(107)	90
Tax liabilities	(3)	(34)
Operating lease liabilities	(11)	(9)
Other liabilities (including payables to related parties)	285	(85)
Net cash provided by (used for) operating activities	902	332
Cash flows provided by (used for) investing activities
Purchases of short-term investments	(415)	(355)
Proceeds from maturity of short-term investments	435	145
Purchases of equity investments	(74)	(2)
Purchases of intangible assets	(11)	(7)
Proceeds from sale or liquidation of equity investments	1	0
Purchases of property and equipment	(197)	(154)
Other investing activities, net, including investments in convertible loans	(6)	1
Net cash provided by (used for) investing activities	(267)	(372)
Cash flows provided by (used for) financing activities
Payments of intangible asset obligations	(29)	(21)
Other financing activities, net	(19)	(17)
Payments of withholding tax on vested shares	(278)	(85)
Net cash provided by (used for) financing activities	(326)	(123)
Effect of foreign exchange rate changes on cash and cash equivalents	(2)	34
Net increase (decrease) in cash and cash equivalents	307	(129)
Cash and cash equivalents at the beginning of the period	2,751	2,085
Cash and cash equivalents at the end of the period	3,058	1,956
Non-cash investing and financing activities:
Non-cash additions in property and equipment	22	14
Non-cash additions in finance lease right-of-use assets	0	45
Non-cash additions in intangible assets	4	129
Non-cash additions in operating lease right-of-use assets	38	15
Non-cash additions in operating lease liabilities	38	17
Non-cash withholding tax on vested shares	$ 60	$ 165

Equity Investments - Schedule of Gains (Losses) on Non-Marketable Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Investments, All Other Investments [Abstract]
Observable price adjustments on non-marketable equity securities (includes NAV)	$ 10	$ 1
Total income (loss) from equity investments in non-marketable securities, net	$ 10	$ 1

Balance Sheet Components - Schedule of Other Current Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Other Current Liabilities [Line Items]
Employee related payroll taxes and payables	$ 375	$ 119
Accrued expenses and fees	192	145
Electronic design automation liabilities	56	78
Trade payables (including payables to related parties of $30 and $20 as of June 30, 2026 and March 31, 2026, respectively)	52	80
Finance lease liabilities	21	25
Total other current liabilities	696	447
Related Party
Other Current Liabilities [Line Items]
Trade payables (including payables to related parties of $30 and $20 as of June 30, 2026 and March 31, 2026, respectively)	30	20
Total other current liabilities	$ 30	$ 20

Equity Investments

3 Months Ended

Jun. 30, 2026

Investments, All Other Investments [Abstract]

Equity Investments

5 - Equity Investments

A summary of the components of equity investments is as follows:


	As of
(in millions)	June 30, 2026		March 31, 2026
Equity method investments under fair value option	$	141	$	148
Equity investments in publicly listed companies	290		96
Equity method investments under equity method	12		13
Non-marketable equity securities	146		130
Total equity investments	$	589	$	387

Income (loss) from equity investments, net is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Equity investments in publicly listed companies	$	126	$	4
Equity method investments (1)	(8)		(1)
Non-marketable equity securities (includes NAV)	10		1
Total income (loss) from equity investments, net	$	128	$	4

Equity method investments under fair value option

The Company elected the fair value option to account for certain equity method investments in Acetone Limited. See discussion below, along with Note 8 - Fair Value, for further information.

The Company holds equity method investments in funds accounted for under the fair value option that apply the NAV practical expedient. The estimated fair values of the Company’s equity securities at fair value that qualify for the NAV practical expedient were provided by the funds based on the indicated market values of the underlying assets or investment portfolios. As of June 30, 2026 and March 31, 2026, the carrying value of equity method investments under the fair value option measured at NAV was $89.1 million and $91.3 million, respectively.

For the three months ended June 30, 2026 and 2025, the Company recognized losses from changes in fair value of $2.2 million and $2.0 million, respectively, for equity method investments accounted for under the NAV practical expedient. Changes in fair value are recorded through income (loss) from equity investments, net in the Condensed Consolidated Income Statements.

Acetone Limited

As of June 30, 2026 and March 31, 2026, the carrying value of the Company’s equity method investment in Acetone Limited was $51.5 million and $56.5 million, respectively. For the three months ended June 30, 2026, the Company recognized fair value losses of $5.0 million with respect to its investment in Acetone Limited in income (loss) from equity investments, net in the Condensed Consolidated Income Statements. For the three months ended June 30, 2025, the Company did not recognize fair value gains or losses with respect to its investment in Acetone Limited.

Equity investments in publicly listed companies

As of June 30, 2026 and March 31, 2026, the carrying value of the Company’s equity investments in publicly listed companies was $289.6 million and $96.1 million, respectively. During the three months ended June 30, 2026, the Company purchased an additional $67.9 million of Raspberry Pi Holdings plc’s ordinary shares. For the three months ended June 30, 2026 and 2025, the Company recognized fair value gains and (losses) with respect to its equity investments in publicly listed companies of $125.6 million and $3.8 million, respectively, in income (loss) from equity investments, net in the Condensed Consolidated Income Statements.

Non-marketable Equity Securities

Non-marketable securities are those for which the Company does not have significant influence or control. These represent either direct or indirect, through a capital fund, investments in unlisted early-stage development enterprises which are generating value for shareholders through research and development activities. The Company holds equity interests in certain funds which are accounted for under the NAV practical expedient. As of June 30, 2026 and March 31, 2026, the carrying value of assets measured at NAV was $30.3 million and $27.2 million, respectively. For the three months ended June 30, 2026 and 2025, the Company recognized gains of $1.6 million and $1.1 million, respectively, from changes in fair value for non-marketable securities accounted for under the NAV practical expedient.

As of June 30, 2026 and March 31, 2026, the carrying value of the Company’s preference shares of Kigen (UK) Limited (“Kigen”), an entity indirectly partially owned by SoftBank Vision Fund L.P., was $16.4 million. The preference shares are convertible into common shares of Kigen and are entitled to full dividends, distribution and voting rights. The Company does not have significant influence or control over Kigen and elected to apply the measurement alternative for this investment.

The Company elected to apply the measurement alternative to all other non-marketable equity securities. Under the measurement alternative, these equity securities are recorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes in orderly transactions.


	Three Months Ended June 30,
(in millions)	2026		2025
Observable price adjustments on non-marketable equity securities (includes NAV)	$	10	$	1


Total income (loss) from equity investments in non-marketable securities, net	$	10	$	1

All equity method investments held by the Company are considered long-term to enable ecosystem growth and are classified as non-current assets. For the three months ended June 30, 2026 and 2025, the Company recognized $2.4 million and $1.1 million, respectively, in dividends from equity investments measured using the NAV practical expedient. The total amount of financial commitments to existing investees of the Company not provided for in the condensed consolidated financial statements was $24.3 million and $25.6 million as of June 30, 2026 and March 31, 2026, respectively.

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total revenue	$ 1,289.0	$ 1,053.0
Staff costs: Share-based compensation cost (equity settled)	(343.0)	(241.0)
Operating income (loss)	91.0	114.0
Income (loss) from equity investments, net	128.0	4.0
Interest income, net	31.0	27.0
Other non-operating income (loss), net	3.0	1.0
Income (loss) before income taxes	253.0	146.0
Income tax benefit (expense)	17.0	(16.0)
Net income (loss)	270.0	130.0
Reportable Segment
Segment Reporting [Line Items]
Total revenue	1,289.0	1,053.0
Staff costs: Salaries, bonuses and benefits	(449.0)	(389.0)
Staff costs: Share-based compensation cost (equity settled)	(343.0)	(241.0)
Staff costs: Employer taxes related to share-based compensation	(98.0)	(58.0)
Project materials costs, third-party fees paid to consultants, information technology, research and development expenses (excluding employee-related expenses), accounting and legal professional services fees, advertising expenses, and other corporate-related expenses	(233.0)	(192.0)
Amortization	(27.0)	(24.0)
Depreciation	(48.0)	(36.0)
Other non-staff costs	0.0	1.0
Operating income (loss)	$ 91.0	$ 114.0
Operating margin	7.00%	11.00%
Income (loss) from equity investments, net	$ 128.0	$ 4.0
Interest income, net	31.0	27.0
Other non-operating income (loss), net	3.0	1.0
Income (loss) before income taxes	253.0	146.0
Income tax benefit (expense)	17.0	(16.0)
Net income (loss)	270.0	130.0
License and Other Revenue
Segment Reporting [Line Items]
Total revenue	574.0	468.0
License and Other Revenue \| Reportable Segment
Segment Reporting [Line Items]
Total revenue	574.0	468.0
Royalty Revenue
Segment Reporting [Line Items]
Total revenue	715.0	585.0
Royalty Revenue \| Reportable Segment
Segment Reporting [Line Items]
Total revenue	$ 715.0	$ 585.0

Income Taxes	3 Months Ended
Income Taxes	Jun. 30, 2026
Income Tax Disclosure [Abstract]
Income Taxes	11 - Income Taxes The Company is subject to income taxes in the U.K. and foreign jurisdictions. The Company bases its interim tax provision on an estimated annual effective tax rate applied to year-to-date results and records discrete items in the period to which they relate. For the three months ended June 30, 2026 and 2025, the Company’s income tax benefit (expense) was $17.0 million and $(16.0) million, respectively. The effective tax rate differed from the 25% U.K. statutory rate primarily due to the impacts of gross basis withholding taxes, research and development tax credits and tax deductions associated with share-based compensation. During the three months ended June 30, 2026, there were no material changes to unrecognized tax benefits, and there are no expectations of material changes in the Company’s unrecognized tax benefits within the next twelve months. The Company is subject to reviews by the U.K. tax authorities for the fiscal year 2019 and all subsequent years and by the U.S. tax authorities for the calendar year 2003 and most subsequent years.

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477617/942-740-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478822/944-740-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 231
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-231

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12C
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12C

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12B

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477891/740-270-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480990/946-20-50-13

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Publisher FASB
-URI https://asc.fasb.org/740/tableOfContent

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-14

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-21

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-17

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
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-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-2

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

Share-based Compensation (Tables)

3 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Schedule of Award Activity Under the 2022 RSU Plan

The table below identifies the award activity under the 2022 RSU Plan:


(in millions, except per award amount)	Awards	Weighted Average Grant Date Fair Value Per Award
Outstanding as of March 31, 2026	1	$	59.59

Vested	(1)	$	65.83

Outstanding and expected to vest as of June 30, 2026	0	$	50.20

Schedule of Omnibus Incentive Plan

The table below identifies all award activity under the Omnibus Incentive Plan:


(in millions, except per award amount)	Awards (1)	Weighted Average Grant Date Fair Value Per Award (1)
Outstanding as of March 31, 2026	18	$	120.64
Granted	11	$	208.44
Vested	(4)	$	117.88
Cancelled and forfeited	(1)	$	141.16
Outstanding and expected to vest as of June 30, 2026	24	$	159.77

Schedule of Share-Based Compensation Cost

A summary of share-based compensation cost recognized in the Condensed Consolidated Income Statements is as follows:


	Three Months Ended June 30,
(in millions)	2026		2025
Cost of sales	$	9	$	7
Research and development	247		174
Selling, general and administrative	87		60
Pre-tax share-based compensation cost	$	343	$	241
Less: income tax effect	72		46
Net share-based compensation cost	$	271	$	195

Derivatives

3 Months Ended

Jun. 30, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

7 - Derivatives

The Company uses derivative financial instruments, specifically foreign currency forward contracts, to mitigate exposure from certain foreign currency risks arising from operating expenses within research and development and selling, general and administrative expenses that are denominated in foreign currency, predominantly British Pound Sterling (“GBP”). These contracts are designated as cash flow hedges for hedge accounting treatment. Gains or losses on the contracts are recorded in accumulated other comprehensive income (loss) and reclassified to operating expenses when the related operating expenses are recognized in net income (loss) or ineffectiveness should occur.

As of June 30, 2026, the notional value of outstanding foreign currency forward contracts designated as cash flow hedges was £470.0 million and the fair value was $(8.5) million.

As of March 31, 2026, the notional value of outstanding foreign currency forward contracts designated as cash flow hedges was £405.0 million and the fair value was $(9.5) million.

The following table presents the notional amounts of the Company’s outstanding derivative instruments:


	As of
(in millions)	June 30, 2026		March 31, 2026
Designated as cash flow hedges
Foreign currency forward contracts	$	631	$	544

The following table presents the fair value of the Company’s outstanding derivative instruments:


	Derivative Assets				Derivative Liabilities
	As of				As of
(in millions)	June 30, 2026		March 31, 2026		June 30, 2026		March 31, 2026
Designated as cash flow hedges
Foreign currency forward contracts	$	—	$	—	$	9	$	10

Cash Flow Hedge Gains (Losses)

The following table presents net gains (losses) on foreign currency forward contracts designated as cash flow hedges:


	Three Months Ended June 30,
(in millions)	2026		2025
Condensed Consolidated Statements of Comprehensive Income:
Change in gains (losses) recognized in accumulated other comprehensive income (loss) on cash flow hedge derivatives	$	1	$	28
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income	—		(7)
Income tax benefit (expense) on cash flow hedges	—		(5)
Net change in fair value of the effective portion of designated cash flow hedges, net of tax (1)	$	1	$	16
Condensed Consolidated Income Statements, before tax:
Research and development	$	—	$	4
Selling, general and administrative expenses	$	—	$	3

(1) All amounts reported in accumulated other comprehensive income (loss) at the reporting date are expected to be reclassified into earnings within the next 12 months.

For the three months ended June 30, 2026 and 2025, the Company’s cash flow hedges were highly effective with immaterial amounts of ineffectiveness recorded in the Condensed Consolidated Income Statements for these designated cash flow hedges, and all components of each derivative instrument’s gain or loss were included in the assessment of hedge effectiveness.

The Company classifies foreign currency forward contracts as Level 2 fair value measurements pursuant to the fair value hierarchy. See Note 8 - Fair Value, for further details.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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+ Details

Balance Sheet Components - Schedule of Accrued Compensation and Benefits (Details) - USD ($) $ in Millions	Jun. 30, 2026	Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued bonuses and commissions	$ 5	$ 26
Accrued vacation and sabbatical	113	114
Accrued salaries and fringe benefits	9	7
Employee Stock Purchase Plan liability	29	7
Total accrued compensation and benefits	$ 156	$ 154

Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares shares in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	1	2
Restricted share units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	1
Performance share units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	1	1

Share-based Compensation - Schedule of Share-Based Compensation Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax share-based compensation cost	$ 343	$ 241
Less: income tax effect	72	46
Net share-based compensation cost	271	195
Income Statement Location [Axis]: us-gaap:CostOfRevenue
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax share-based compensation cost	9	7
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax share-based compensation cost	247	174
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax share-based compensation cost	$ 87	$ 60