Was William Abbey’s ARM share sale an open-market transaction?

Yes, the filing classifies the transaction as an open-market sale. The transaction code is “S,” described as a sale in an open market or private transaction, indicating a standard discretionary disposition rather than a grant, tax withholding, or option exercise event.

Arm Holdings (ARM) CCO sells 2,300 shares at about $306 each

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Arm Holdings Chief Commercial Officer William Abbey reported an open-market sale of 2,300 Ordinary Shares on May 22, 2026. The shares, held in the form of American Depositary Shares, were sold at a weighted average price of $305.82 per share.

The sales prices ranged from $305.82 to $305.91, and Abbey now directly holds 31,329 Ordinary Shares. This filing reflects a partial sale while retaining a meaningful continuing equity stake in Arm Holdings.

Insider Trade Summary

Net Seller: 2,300 shares ($703,386)

Net Sell 1 txn

Insider Abbey William

Role Chief Commercial Officer

Sold 2,300 shs ($703K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	2,300	$305.82	$703K

Holdings After Transaction: Ordinary Shares — 31,329 shares (Direct, null)

Footnotes (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. Represents weighted average sales price. The shares were sold at prices ranging from $305.82 to $305.91. The reporting person will provide upon request, to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Key Figures

Shares sold: 2,300 shares Weighted average sale price: $305.82 per share Sale price range: $305.82 to $305.91 +1 more

4 metrics

Shares sold 2,300 shares Open-market sale on May 22, 2026

Weighted average sale price $305.82 per share Ordinary Shares / ADSs sold

Sale price range $305.82 to $305.91 Range of prices for the 2,300 shares sold

Shares owned after sale 31,329 shares Direct holdings following the transaction

Key Terms

American Depositary Shares, Ordinary Shares, weighted average sales price

3 terms

American Depositary Shares financial

"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.

Ordinary Shares financial

"Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

weighted average sales price financial

"Represents weighted average sales price. The shares were sold at prices ranging from $305.82 to $305.91."

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Form 4 Insider Transactions: What Each Field Means →

05/26/2026 - 06:01 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^*

Abbey William

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

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⁾	05/22/2026		S		2,300	D	$305.82⁽²⁾	31,329	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)

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. Represents weighted average sales price. The shares were sold at prices ranging from $305.82 to $305.91. The reporting person will provide upon request, to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ George Kanelos, as Attorney-in-Fact for William Abbey	05/26/2026
	** 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

FAQ

What insider transaction did ARM Chief Commercial Officer William Abbey report?

William Abbey reported selling 2,300 Arm Holdings ordinary shares in an open-market transaction. The sale occurred on May 22, 2026, and involved shares held as American Depositary Shares, each representing one ordinary share of ARM Holdings PLC.

At what price did William Abbey sell ARM ordinary shares?

Abbey sold the ARM ordinary shares at a weighted average price of $305.82 per share. According to the disclosure, the actual sale prices ranged from $305.82 to $305.91, with detailed price-by-price information available upon request to the company or regulators.

How many ARM shares does William Abbey hold after this Form 4 sale?

Following the reported transaction, Abbey directly holds 31,329 Arm Holdings ordinary shares. These holdings remain after selling 2,300 shares and are shown as a continuing equity position in the company in the Form 4 ownership table for this reporting officer.

What type of security did William Abbey trade in this ARM Form 4 filing?

The transaction involved ARM ordinary shares, each with a nominal value of 0.001 GBP. These ordinary shares are held in the form of American Depositary Shares, with each ADS representing one ordinary share of ARM Holdings PLC listed for U.S. investors.