ARM HOLDINGS: Insider Jason Child Files Proposed Sale of Securities

TL;DR

**Insider Jason Child is selling ARM HOLDINGS stock.**

AI Summary

This 144 filing indicates that Jason Child, a reporting person associated with ARM HOLDINGS PLC /UK, proposes to sell securities. The filing was accepted on March 25, 2026, and lists ARM HOLDINGS PLC /UK (CIK: 0001973239) as the subject company. This matters to investors because a proposed sale by an insider like Jason Child could signal a lack of confidence in the company's future prospects, potentially impacting the stock price.

Why It Matters

A proposed sale of securities by an insider like Jason Child could be interpreted by the market as a negative signal, potentially leading to a decrease in ARM HOLDINGS PLC /UK's stock price.

Risk Assessment

Risk Level: medium — Insider selling can sometimes indicate a lack of confidence, posing a medium risk to current or prospective shareholders.

Analyst Insight

Investors should monitor ARM HOLDINGS PLC /UK's stock performance closely and research the reasons behind Jason Child's proposed sale to assess potential impacts on the company's future outlook.

Key Players & Entities

• Jason Child (person) — Reporting person proposing to sell securities
• ARM HOLDINGS PLC /UK (company) — Subject company of the proposed sale
• 0001973239 (company) — CIK of ARM HOLDINGS PLC /UK
• 0001533913 (person) — CIK of Jason Child
• March 25, 2026 (date) — Filing and acceptance date

Forward-Looking Statements

• The stock price of ARM HOLDINGS PLC /UK may experience downward pressure. (ARM HOLDINGS PLC /UK) — medium confidence, target: short-term

FAQ

Filing Documents

• primary_doc.html (144)
• primary_doc.xml (144) — 5KB
• 0001959173-26-002606.txt ( ) — 7KB

From the Filing

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 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 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 Child Jason 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 21280 3157313.60 1056513738 03/25/2026 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 4845 05/15/2024 Compensation American Depositary Shares 08/15/2024 Restricted Stock Vesting Issuer 5795 08/15/2024 Compensation American Depositary Shares 11/15/2024 Restricted Stock Vesting Issuer 1429 11/15/2024 Compensation American Depositary Shares 02/15/2025 Restricted Stock Vesting Issuer 9211 02/15/2025 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 Jason E. Child 110 Fulbourn Road Cambridge � X0 � CB1 9NJ American Depositary Shares 02/18/2026 10640 1365005.60 144: Remarks and Signature Remarks Date of Notice 03/25/2026 Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1 05/30/2025 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/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jason E. Child ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

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View this 144 filing on SEC EDGAR