Arm (NASDAQ: ARM) director Ronald Fisher granted 1,531 RSUs in Form 4

Rhea-AI Filing Summary

FISHER RONALD D reported acquisition or exercise transactions in this Form 4 filing.

ARM Holdings plc director Ronald D. Fisher received a grant of 1,531 Restricted Stock Units (RSUs), each tied to one Ordinary Share held as an American Depositary Share (ADS). This is a compensation-related award, not an open-market stock purchase or sale.

The RSUs will vest in full on May 15, 2027, provided he continues serving on the Board. Although vesting occurs then, the ADSs will only be delivered when his Board service ends, reflecting his election to defer delivery. Following this grant, he is reported as holding 5,802 RSUs directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider FISHER RONALD D

Role null

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	1,531	$0.00	--

Holdings After Transaction: Restricted Stock Units — 5,802 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit ("RSU") represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS. The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Fisher's service on the Board of Directors pursuant to his election to defer such delivery. Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

Key Figures

RSUs granted: 1,531 RSUs RSU holdings after grant: 5,802 RSUs RSU vesting date: May 15, 2027 +4 more

7 metrics

RSUs granted 1,531 RSUs Grant to Ronald D. Fisher on May 15, 2026

RSU holdings after grant 5,802 RSUs Total derivative holdings following transaction

RSU vesting date May 15, 2027 RSUs vest in full subject to continued Board service

RSU exercise price 0.0000 per unit Compensation award with no cash exercise price

Ordinary Share nominal value 0.001 GBP per share Nominal value of ARM Ordinary Shares underlying ADSs

ADS to Ordinary Share ratio 1 ADS : 1 Ordinary Share Each ADS represents one Ordinary Share

Underlying Ordinary Shares per RSU 1 Ordinary Share per RSU Each RSU corresponds to one Ordinary Share via ADS

Key Terms

Restricted Stock Units, American Depositary Shares, vesting, deferral, +1 more

5 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents the right to receive, following vesting, 1 Ordinary Share..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

American Depositary Shares financial

"Ordinary shares... are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share."

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

vesting financial

"The RSUs will vest in full on May 15, 2027, subject to continued service..."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

deferral financial

"the ADSs will not be delivered until the date of termination... pursuant to his election to defer such delivery."

derivative securities financial

"The transaction is reported as a derivative-type grant of Restricted Stock Units."

Financial contracts whose value is tied to the price or performance of another asset, such as a stock, bond, commodity, index, or currency; examples include options, futures and swaps. They matter to investors because they let you protect against price swings, bet on future moves or gain larger exposure with less upfront cash—like using a lever or insurance policy on an investment—so they can amplify gains and losses and help manage portfolio risk.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

FISHER RONALD D

(Last) (First) (Middle)

C/O ARM HOLDINGS PLC

110 FULBOURN ROAD

(Street)

CAMBRIDGE CB1 9NJ

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
ARM HOLDINGS PLC /UK [ ARM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	05/15/2026		A		1,531		(2)	(2)	Ordinary Shares(3)	1,531	$0	5,802	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

2. The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc, but the ADSs will not be delivered until the date of termination of Mr. Fisher's service on the Board of Directors pursuant to his election to defer such delivery.

3. Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

Remarks:

	/s/ George Kanelos, as Attorney-in-Fact for Ronald Fisher	05/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did ARM (ARM) report for Ronald D. Fisher?

ARM reported that director Ronald D. Fisher received a grant of 1,531 Restricted Stock Units as compensation. These RSUs are derivative awards, not open-market trades, and each RSU corresponds to one Ordinary Share held in the form of an American Depositary Share.

How many RSUs does Ronald D. Fisher hold in ARM (ARM) after this grant?

After the grant, Ronald D. Fisher is reported as holding 5,802 Restricted Stock Units directly. This total includes the newly awarded 1,531 RSUs and represents his derivative-based equity position associated with ARM’s Ordinary Shares held as American Depositary Shares.

When do Ronald D. Fisher’s new ARM (ARM) RSUs vest and deliver?

The 1,531 RSUs will vest in full on May 15, 2027, subject to his continued Board service. However, the underlying ADSs will not be delivered until the date his Board service terminates, pursuant to his election to defer that delivery date.

What does each Restricted Stock Unit represent for ARM (ARM) in this filing?

Each Restricted Stock Unit represents the right to receive, after vesting, one Ordinary Share held as an American Depositary Share. The filing notes that each ADS represents one Ordinary Share, with a nominal value of 0.001 GBP per Ordinary Share.

Is Ronald D. Fisher’s ARM (ARM) RSU grant an open-market purchase or sale?

The RSU grant is not an open-market purchase or sale. It is classified as a grant, award, or other acquisition of derivative securities provided as compensation, with no transaction price per share and no corresponding open-market trading activity disclosed in this Form 4.