Arm director exercises 2,141 shares, gets RSU grant

Arm Holdings director Jeffrey Sine reported compensation-related equity activity involving restricted stock units (RSUs) and ordinary shares held as American Depositary Shares (ADSs).

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Form Type

Rhea-AI Filing Summary

Arm Holdings director Jeffrey Sine reported compensation-related equity activity involving restricted stock units (RSUs) and ordinary shares held as American Depositary Shares (ADSs). On May 15, 2026, RSUs covering 2,141 ordinary shares vested in full and were exercised into 2,141 ordinary shares.

On the same date, Sine also received a new grant of 1,531 RSUs, each representing one ordinary share in ADS form. These new RSUs are scheduled to vest in full on May 15, 2027, subject to continued service to Arm Holdings plc. Following the transactions, Sine directly holds 9,572 ordinary shares and 1,531 RSUs.

Insider Trade Summary

2,141 shares exercised/converted

Exercise 3 txns

Insider Sine Jeffrey

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	2,141	$0.00	$0.00
Grant/Award	Restricted Stock Units	1,531	$0.00	$0.00
Exercise	Ordinary Shares	2,141	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 1,531 contracts (Direct); Ordinary Shares — 9,572 shares (Direct)

Footnotes (4)

F1. 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.
F2. The restricted stock units ("RSUs") vested in full on May 15, 2026.
F3. Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.
F4. The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc.

Key Figures

RSUs exercised: 2,141 shares New RSU grant: 1,531 RSUs Ordinary shares held: 9,572 shares +2 more

5 metrics

RSUs exercised 2,141 shares RSUs vested and converted into ordinary shares on May 15, 2026

New RSU grant 1,531 RSUs Awarded to Jeffrey Sine on May 15, 2026

Ordinary shares held 9,572 shares Direct holdings after transactions on May 15, 2026

RSUs outstanding 1,531 units Unvested RSUs remaining after transactions

ADS to ordinary share ratio 1 ADS = 1 ordinary share Structure of Arm Holdings plc ADSs

Key Terms

Restricted Stock Units, RSUs, American Depositary Shares, ADSs

4 terms

Restricted Stock Units financial

"The restricted stock units ("RSUs") vested in full on May 15, 2026."

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.

RSUs financial

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

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

American Depositary Shares financial

"Ordinary Shares are held in the form of American Depositary Shares ("ADSs")."

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.

ADSs financial

"Each ADS represents 1 Ordinary Share."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did Arm (ARM) director Jeffrey Sine report?

Jeffrey Sine reported equity compensation activity: RSUs for 2,141 ordinary shares vested and were exercised into 2,141 ordinary shares, and he received a new grant of 1,531 RSUs, all dated May 15, 2026.

How many Arm (ARM) shares does Jeffrey Sine hold after these Form 4 transactions?

After the reported transactions, Jeffrey Sine directly holds 9,572 ordinary shares of Arm Holdings and 1,531 restricted stock units, each RSU representing the right to receive one ordinary share in ADS form after vesting.

What happened to Jeffrey Sine’s Arm (ARM) restricted stock units on May 15, 2026?

On May 15, 2026, some of Jeffrey Sine’s RSUs vested in full and were exercised into 2,141 ordinary shares. At the same time, he received a new award of 1,531 RSUs as additional equity compensation.

When will Jeffrey Sine’s new Arm (ARM) RSU grant vest?

The new grant of 1,531 restricted stock units to Jeffrey Sine is scheduled to vest in full on May 15, 2027, provided he continues his service to Arm Holdings plc through that vesting date.

How do Arm (ARM) ADSs relate to ordinary shares in Jeffrey Sine’s holdings?

Jeffrey Sine’s ordinary shares are held as American Depositary Shares, with each ADS representing one ordinary share. Both the vested RSUs and the new RSU grant are linked to ordinary shares delivered in ADS form.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 05/19/2026 - 04:59 PM

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^*

Sine Jeffrey

(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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Ordinary Shares⁽¹⁾	05/15/2026		M		2,141⁽²⁾	A	⁽³⁾	9,572	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽³⁾	05/15/2026		M			2,141	⁽²⁾	⁽²⁾	Ordinary Shares	2,141	$0	0	D
Restricted Stock Units	⁽³⁾	05/15/2026		A		1,531		⁽⁴⁾	⁽⁴⁾	Ordinary Shares	1,531	$0	1,531	D

Explanation of Responses:

1. 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.

2. The restricted stock units ("RSUs") vested in full on May 15, 2026.

3. Each RSU represents the right to receive, following vesting, 1 Ordinary Share held in the form of an ADS.

4. The RSUs will vest in full on May 15, 2027, subject to continued service to Arm Holdings plc.

Remarks:

	/s/ George Kanelos, as Attorney-in-Fact for Jeffrey Sine	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)

Source: View Original Filing on SEC EDGAR