Arm (ARM) Chief Commercial Officer sells 6,566 shares in open trades

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

ARM Holdings Chief Commercial Officer William Abbey reported open-market sales of Ordinary Shares held as American Depositary Shares. He sold 3,922 shares at a weighted average price of $415.52 per share and 2,644 shares at $383.73 per share, totaling 6,566 shares. Each ADS represents one Ordinary Share, and he continues to hold a substantial direct equity stake following these transactions.

Insider Trade Summary

Net Seller: 6,566 shares ($2,644,252)

Net Sell 2 txns

Insider Abbey William

Role Chief Commercial Officer

Sold 6,566 shs ($2.64M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	2,644	$383.73	$1.01M
Sale	Ordinary Shares	3,922	$415.52	$1.63M

Holdings After Transaction: Ordinary Shares — 24,485 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 $415.52 to $415.58. 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

First sale size: 3,922 shares First sale price: $415.52 per share Second sale size: 2,644 shares +3 more

6 metrics

First sale size 3,922 shares Ordinary Shares sold at weighted average price

First sale price $415.52 per share Weighted average sale price for 3,922 shares

Second sale size 2,644 shares Ordinary Shares sold at stated price

Second sale price $383.73 per share Sale price for 2,644 shares

Total shares sold 6,566 shares Net shares sold across reported transactions

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

Key Terms

Ordinary Shares, American Depositary Shares, weighted average sales price, open-market sale, +1 more

5 terms

Ordinary Shares financial

"Ordinary Shares, nominal value 0.001 GBP per share, 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.

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.

weighted average sales price financial

"Represents weighted average sales price. The shares were sold at prices ranging from $415.52 to $415.58."

open-market sale financial

"transaction_action is described as an open-market sale of Ordinary Shares."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"The insider transactions are reported on Form 4 for William Abbey."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

06/03/2026 - 04:46 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)
06/01/2026

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⁾	06/01/2026		S		2,644	D	$383.73	24,485	D
Ordinary Shares⁽¹⁾	06/01/2026		S		3,922	D	$415.52⁽²⁾	20,563	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 $415.52 to $415.58. 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	06/03/2026
	** 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 (ARM) report for William Abbey?

ARM reported that Chief Commercial Officer William Abbey sold a total of 6,566 Ordinary Shares in open-market transactions. These were reported as two separate sales and reflect routine portfolio activity while he retains a meaningful remaining equity position in the company.

How many ARM (ARM) shares did William Abbey sell and at what prices?

William Abbey sold 3,922 Ordinary Shares at a weighted average price of $415.52 per share and 2,644 shares at $383.73 per share. Together, these open-market sales total 6,566 shares, according to the Form 4 insider transaction report.

What type of ARM (ARM) securities did William Abbey sell?

The transactions involved ARM Ordinary Shares held in the form of American Depositary Shares. The filing states that each ADS represents one Ordinary Share, so the reported share counts correspond directly to the number of underlying Ordinary Shares sold in the market.

Were William Abbey’s ARM (ARM) sales direct or through an intermediary entity?

The Form 4 identifies the ownership as direct, with no separate entity or trust listed in the ownership description. That means the reported open-market sales are attributed directly to William Abbey, rather than to a related fund, partnership, or family vehicle.

Does William Abbey still hold ARM (ARM) shares after these sales?

Yes. The Form 4 shows that William Abbey continues to hold more than 20,000 ARM Ordinary Shares directly after the reported transactions. This indicates the 6,566 shares sold represent only a portion of his overall equity position in the company.