Form 144 filed for ADS resale tied to restricted vesting

The issuer submitted a Form 144 notice concerning proposed sales of American Depositary Shares tied to restricted stock vesting.

Rhea-AI Filing Summary

The issuer submitted a Form 144 notice concerning proposed sales of American Depositary Shares tied to restricted stock vesting. The excerpt shows planned sales of 7,960 ADS (vesting 11/15/2025) and 3,845 ADS (vesting 05/15/2026), and a prior sale of 3,100 ADS on 05/20/2026 for $781,978.40.

Insights

Securities Compliance Analyst

Notice of proposed ADS sales under Rule 144 tied to restricted stock vesting.

The filing lists specific ADS quantities and vesting dates: 7,960 ADS vesting 11/15/2025 and 3,845 ADS vesting 05/15/2026. It records a contemporaneous sale of 3,100 ADS on 05/20/2026 valued at $781,978.40.

These entries are procedural disclosures of intended or recent sales under resale rules; cash‑flow treatment and whether sales will be immediate or delayed are not detailed in the excerpt. Subsequent filings would state transaction completion and method.

Key Figures

Planned ADS (11/15/2025): 7,960 shares Planned ADS (05/15/2026): 3,845 shares ADS sold during past 3 months: 3,100 shares +1 more

4 metrics

Planned ADS (11/15/2025) 7,960 shares Restricted Stock Vesting on <date>11/15/2025</date>

Planned ADS (05/15/2026) 3,845 shares Restricted Stock Vesting on <date>05/15/2026</date>

ADS sold during past 3 months 3,100 shares Sale on <date>05/20/2026</date>

Proceeds reported for recent sale $781,978.40 Proceeds from 3,100 ADS sold on <date>05/20/2026</date>

Key Terms

American Depositary Shares, Restricted Stock Vesting, Form 144

3 terms

American Depositary Shares financial

"American Depositary Shares | Fidelity Brokerage Services LLC 900 Salem Street"

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 compensation

"Restricted Stock Vesting | Issuer | 7960 | 11/15/2025"

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 To Be Sold"

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 does ARM's Form 144 disclose about ADS vesting and proposed sales?

It discloses planned sales of 7,960 ADS (vesting 11/15/2025) and 3,845 ADS (vesting 05/15/2026). The form also shows a recent sale of 3,100 ADS on 05/20/2026 valued at $781,978.40.

Did the filing report any ADS sold recently for ARM?

Yes. The excerpt records a sale of 3,100 ADS on 05/20/2026 for $781,978.40. The entry lists the seller as an individual and provides a dollar figure tied to that sale.

Are the planned ADS sales in ARM's Form 144 linked to compensation?

Yes. The two planned ADS amounts are labeled as Restricted Stock Vesting, indicating the ADS arise from compensation vesting events dated 11/15/2025 and 05/15/2026.

Does the Form 144 excerpt state how the ADS will be sold (method or timing)?

No. The excerpt lists quantities, vesting dates, and a recent sale amount but does not specify sale methods or exact timing. Details on execution methods are not provided in the provided text.

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

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Accepted by SEC EDGAR 05/21/2026 - 04:17 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	0002102441
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	Eaton Charlotte Claire
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

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	11805	3394594.72	1056513738	05/21/2026	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	11/15/2025	Restricted Stock Vesting	Issuer			7960	11/15/2025	Compensation
American Depositary Shares	05/15/2026	Restricted Stock Vesting	Issuer			3845	05/15/2026	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
Charlotte Eaton 110 Fulbourn Road Cambridge X0 CB1 9NJ	American Depositary Shares	05/20/2026	3100	781978.40

144: Remarks and Signature

Remarks
Date of Notice	05/21/2026
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/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Charlotte Eaton
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)