ARM: Insider notices for ADS sales by Rene Haas

ARM reported proposed and reported transactions in American Depositary Shares.

Rhea-AI Filing Summary

ARM reported proposed and reported transactions in American Depositary Shares. The filing lists a planned sale of 9,299 ADS tied to restricted stock vesting (05/15/2024) and four reported dispositions by Rene Haas: 6,152 ADS on 01/30/2026 ($653,938.87), 6,152 ADS on 02/27/2026 ($653,938.87), 23,867 ADS on 03/25/2026 ($3,846,744.35), and 7,986 ADS on 03/26/2026 ($1,284,620.75).

The broker listed is Fidelity Brokerage Services LLC and the securities are quoted on NASDAQ. The item references compensation-related vesting as the source for the 9,299 ADS.

Insights

Equity Markets Analyst

Routine insider dispositions and a vesting-related sale are reported; no material governance change.

The filing records multiple ADS dispositions by Rene Haas with explicit share counts and gross proceeds per trade, and a separate allocation of 9,299 ADS tied to restricted stock vesting dated 05/15/2024. These are routine transactional disclosures under resale rules.

Cash‑flow treatment and whether trades were brokered or part of a trading plan are not specified in the excerpt; subsequent filings could provide further detail.

Key Figures

Planned ADS to be sold (vesting): 9,299 ADS Disposition on 01/30/2026: 6,152 ADS Disposition on 02/27/2026: 6,152 ADS +3 more

6 metrics

Planned ADS to be sold (vesting) 9,299 ADS Restricted stock vesting dated 05/15/2024

Disposition on 01/30/2026 6,152 ADS Gross proceeds $653,938.87

Disposition on 02/27/2026 6,152 ADS Gross proceeds $653,938.87

Disposition on 03/25/2026 23,867 ADS Gross proceeds $3,846,744.35

Disposition on 03/26/2026 7,986 ADS Gross proceeds $1,284,620.75

Broker Fidelity Brokerage Services LLC Broker address listed with securities

Key Terms

American Depositary Shares, Restricted Stock Vesting, Form 144

3 terms

American Depositary Shares market

"American Depositary Shares | Fidelity Brokerage Services LLC"

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.

Restricted Stock Vesting regulatory

"05/15/2024 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What ADS transactions did Rene Haas report in the ARM Form 144?

Rene Haas reported four dispositions: 6,152 ADS (01/30/2026), 6,152 ADS (02/27/2026), 23,867 ADS (03/25/2026), and 7,986 ADS (03/26/2026). The filing lists gross amounts for each trade.

How many ADS are listed as to be sold from restricted stock vesting for ARM?

The filing lists 9,299 ADS to be sold tied to restricted stock vesting dated 05/15/2024. The entry identifies the source as compensation-related vesting.

Which broker and market are named in the ARM filing?

The broker shown is Fidelity Brokerage Services LLC and the market cited is NASDAQ. The filing pairs the broker address with the securities and trading venue.

Do the reported entries show proceeds for the ADS dispositions?

Yes; the filing lists gross proceeds per reported disposition: $653,938.87, $653,938.87, $3,846,744.35, and $1,284,620.75 matching the four trade dates reported by Rene Haas.

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

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Accepted by SEC EDGAR 04/14/2026 - 04:14 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001998912
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ARM HOLDINGS PLC /UK
SEC File Number	001-41800
Address of Issuer	110 FULBOURN ROAD CAMBRIDGE UNITED KINGDOM CB1 9NJ
Phone	44 1223 400 400
Name of Person for Whose Account the Securities are To Be Sold	Haas Rene A.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
American Depositary Shares	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	9299	1495799.12	1056513738	04/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
American Depositary Shares	05/15/2024	Restricted Stock Vesting	Issuer			9299	05/15/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Rene Haas 110 FULBOURN ROAD CAMBRIDGE X0 CB1 9NJ	American Depositary Shares,	01/30/2026	6152	653938.87
Rene Haas 110 FULBOURN ROAD CAMBRIDGE X0 CB1 9NJ	American Depositary Shares	02/27/2026	6152	653938.87
Rene Haas 110 FULBOURN ROAD CAMBRIDGE X0 CB1 9NJ	American Depositary Shares	03/25/2026	23867	3846744.35
Rene Haas 110 FULBOURN ROAD CAMBRIDGE X0 CB1 9NJ	American Depositary Shares	03/26/2026	7986	1284620.75

144: Remarks and Signature

Remarks
Date of Notice	04/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/11/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Rene Haas
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)