Were the ARM (ARM) CEO share sales part of a trading plan?

Yes. The filing states the transactions were executed under a Rule 10b5-1 trading plan adopted by Rene Haas. Such plans are pre-arranged instructions for trading, designed to allow insiders to sell shares on a scheduled basis regardless of subsequent market conditions.

ARM (NASDAQ: ARM) CEO sells 9,299 shares under 10b5-1 plan

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

ARM Holdings Chief Executive Officer Rene A. Haas reported open-market sales of a total of 9,299 Ordinary Shares on April 14, 2026. The shares, held as American Depositary Shares where each ADS represents one Ordinary Share, were sold in three blocks at weighted average prices of $160.57, $161.21, and $163.00 per share. After these transactions, Haas directly holds 273,680 Ordinary Shares. The sales were executed under a pre-arranged Rule 10b5-1 trading plan.

Insider Trade Summary 10b5-1

Net Seller: 9,299 shares ($1,495,783)

Net Sell 3 txns

Insider Haas Rene A.

Role Chief Executive Officer

Sold 9,299 shs ($1.50M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	5,646	$160.57	$907K
Sale	Ordinary Shares	3,483	$161.21	$561K
Sale	Ordinary Shares	170	$163.00	$28K

Holdings After Transaction: Ordinary Shares — 277,333 shares (Direct)

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. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 11, 2025. Represents weighted average sales price. The shares were sold at prices ranging from $160.00 to $160.96. 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. Represents weighted average sales price. The shares were sold at prices ranging from $161.00 to $161.91. 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. Represents weighted average sales price. The shares were sold at prices ranging from $162.99 to $163.01. 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: 9,299 shares Sale price 1: $160.57/share Sale price 2: $161.21/share +3 more

6 metrics

Shares sold 9,299 shares Total Ordinary Shares sold on April 14, 2026

Sale price 1 $160.57/share Weighted average price for 5,646 shares sold

Sale price 2 $161.21/share Weighted average price for 3,483 shares sold

Sale price 3 $163.00/share Price for 170 shares sold

Shares held after trades 273,680 shares Direct Ordinary Share holdings following transactions

ADS to share ratio 1 ADS = 1 Ordinary Share Security structure as disclosed in footnote

Key Terms

Rule 10b5-1 trading plan, American Depositary Shares, Ordinary Shares, weighted average sales price

4 terms

Rule 10b5-1 trading plan financial

"The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

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.

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 $160.00 to $160.96."

Form 4 Insider Transactions: What Each Field Means →

04/16/2026 - 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^*

Haas Rene A.

(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
X	Officer (give title below)	Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/14/2026

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⁾	04/14/2026		S⁽²⁾		5,646	D	$160.57⁽³⁾	277,333	D
Ordinary Shares⁽¹⁾	04/14/2026		S⁽²⁾		3,483	D	$161.21⁽⁴⁾	273,850	D
Ordinary Shares⁽¹⁾	04/14/2026		S⁽²⁾		170	D	$163⁽⁵⁾	273,680	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. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 11, 2025.

3. Represents weighted average sales price. The shares were sold at prices ranging from $160.00 to $160.96. 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.

4. Represents weighted average sales price. The shares were sold at prices ranging from $161.00 to $161.91. 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.

5. Represents weighted average sales price. The shares were sold at prices ranging from $162.99 to $163.01. 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 Rene A. Haas	04/16/2026
	** 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) CEO Rene Haas report?

Rene Haas reported selling 9,299 ARM Ordinary Shares in open-market transactions. The sales occurred in three blocks on April 14, 2026, at weighted average prices between $160.57 and $163.00 per share, and were executed under a pre-arranged Rule 10b5-1 trading plan.

At what prices did the ARM (ARM) CEO sell his shares?

The CEO sold shares at weighted average prices of $160.57, $161.21, and $163.00 per share. Footnotes indicate actual trades occurred within narrow ranges around each average, and detailed price-by-trade information is available on request from the company, the SEC, or a security holder.

How many ARM (ARM) shares does the CEO hold after the sale?

After the reported transactions, Rene Haas directly holds 273,680 Ordinary Shares of ARM. These shares are held in the form of American Depositary Shares, with each ADS representing one Ordinary Share according to the filing’s footnote disclosure on the security structure.

What type of ARM (ARM) security did the CEO sell?

The CEO sold ARM Ordinary Shares, which are held in the form of American Depositary Shares. Each ADS represents one Ordinary Share with a nominal value of 0.001 GBP, providing U.S. investors with access to the company’s equity through a familiar security format.