Arm Holdings PLC /UK SEC filings ARM
Arm Holdings PLC /UK has 162 filings in SEC EDGAR's recent list, going back to Apr 28, 2023. Its latest annual report, Form 20-F, was filed on May 26, 2026 for the period ended Mar 31, 2026. The most recent current report (Form 6-K) was filed on Nov 4, 2026. The company's fiscal year ends on March 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 6-K | Current report (foreign issuer) | Nov 4, 2026 | Sep 30, 2026 |
| 6-K | Current report (foreign issuer) | Nov 4, 2026 | Nov 4, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 21, 2026 |
| 144 | Notice of proposed sale | Sep 21, 2026 | — |
| 6-K | Current report (foreign issuer) | Sep 18, 2026 | Sep 18, 2026 |
| 4 | Insider transaction | Sep 16, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 10, 2026 | Sep 9, 2026 |
| 6-K | Current report (foreign issuer) | Sep 10, 2026 | Sep 10, 2026 |
| 4 | Insider transaction | Aug 31, 2026 | Aug 27, 2026 |
| 144 | Notice of proposed sale | Aug 27, 2026 | — |
| 4 | Insider transaction | Aug 18, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Aug 11, 2026 | Aug 7, 2026 |
| 6-K | Current report (foreign issuer) | Aug 10, 2026 | Aug 10, 2026 |
| 6-K | Current report (foreign issuer) | Jul 29, 2026 | Jun 30, 2026 |
| 6-K | Current report (foreign issuer) | Jul 29, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 1, 2026 | May 28, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 22, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 26, 2026 | — |
| IRANNOTICE | Filing | May 26, 2026 | — |
| 20-F | Annual report (foreign issuer) | May 26, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 21, 2026 |
| 144 | Notice of proposed sale | May 21, 2026 | — |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 144 | Notice of proposed sale | May 20, 2026 | — |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | Apr 23, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| S-8 | Employee stock plan registration | May 14, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 11, 2026 |
| 144 | Notice of proposed sale | May 11, 2026 | — |
| 6-K | Current report (foreign issuer) | May 6, 2026 | May 6, 2026 |
| 4 | Insider transaction | Apr 23, 2026 | Apr 22, 2026 |
| 144 | Notice of proposed sale | Apr 22, 2026 | — |
| 6-K | Current report (foreign issuer) | Apr 21, 2026 | Apr 21, 2026 |
| 4 | Insider transaction | Apr 16, 2026 | Apr 14, 2026 |
| 144 | Notice of proposed sale | Apr 14, 2026 | — |
| 4 | Insider transaction | Mar 27, 2026 | Mar 25, 2026 |
| 4 | Insider transaction | Mar 27, 2026 | Mar 25, 2026 |
| 144 | Notice of proposed sale | Mar 26, 2026 | — |
| 144 | Notice of proposed sale | Mar 25, 2026 | — |
| 144 | Notice of proposed sale | Mar 25, 2026 | — |
| 6-K | Current report (foreign issuer) | Mar 24, 2026 | Mar 24, 2026 |
| 6-K | Current report (foreign issuer) | Mar 24, 2026 | Mar 24, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 144 | Notice of proposed sale | Feb 18, 2026 | — |
| 6-K | Current report (foreign issuer) | Feb 4, 2026 | Dec 31, 2025 |
| 6-K | Current report (foreign issuer) | Feb 4, 2026 | Feb 4, 2026 |
| 144 | Notice of proposed sale | Jan 30, 2026 | — |
| 144 | Notice of proposed sale | Dec 31, 2025 | — |
| 144 | Notice of proposed sale | Nov 28, 2025 | — |
| 144 | Notice of proposed sale | Nov 19, 2025 | — |
| 6-K | Current report (foreign issuer) | Nov 5, 2025 | Sep 30, 2025 |
| 6-K | Current report (foreign issuer) | Nov 5, 2025 | Nov 5, 2025 |
| 144 | Notice of proposed sale | Oct 31, 2025 | — |
| 144 | Notice of proposed sale | Oct 14, 2025 | — |
| 144 | Notice of proposed sale | Sep 30, 2025 | — |
| 6-K | Current report (foreign issuer) | Sep 18, 2025 | Sep 18, 2025 |
| 6-K | Current report (foreign issuer) | Sep 10, 2025 | Sep 10, 2025 |
| 144 | Notice of proposed sale | Sep 10, 2025 | — |
| 144 | Notice of proposed sale | Sep 5, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 11, 2025 | Aug 11, 2025 |
| 6-K | Current report (foreign issuer) | Jul 30, 2025 | Jun 30, 2025 |
| 6-K | Current report (foreign issuer) | Jul 30, 2025 | Jul 30, 2025 |
| 144 | Notice of proposed sale | Jun 9, 2025 | — |
| S-8 | Employee stock plan registration | May 28, 2025 | — |
| IRANNOTICE | Filing | May 28, 2025 | — |
| 20-F | Annual report (foreign issuer) | May 28, 2025 | Mar 31, 2025 |
| 144 | Notice of proposed sale | May 22, 2025 | — |
| 6-K | Current report (foreign issuer) | May 7, 2025 | May 7, 2025 |
| 144 | Notice of proposed sale | Feb 20, 2025 | — |
| 6-K | Current report (foreign issuer) | Feb 5, 2025 | Dec 31, 2024 |
| 6-K | Current report (foreign issuer) | Feb 5, 2025 | Feb 5, 2025 |
| 144 | Notice of proposed sale | Jan 22, 2025 | — |
| 144 | Notice of proposed sale | Nov 21, 2024 | — |
| 144 | Notice of proposed sale | Nov 8, 2024 | — |
| 6-K | Current report (foreign issuer) | Nov 7, 2024 | Sep 30, 2024 |
| 6-K | Current report (foreign issuer) | Nov 7, 2024 | Nov 7, 2024 |
| 6-K | Current report (foreign issuer) | Nov 6, 2024 | Nov 6, 2024 |
| S-8 POS | Filing | Sep 25, 2024 | — |
| 144 | Notice of proposed sale | Sep 16, 2024 | — |
| S-8 POS | Filing | Sep 12, 2024 | — |
| 6-K | Current report (foreign issuer) | Sep 12, 2024 | Sep 12, 2024 |
| 144 | Notice of proposed sale | Sep 11, 2024 | — |
| 144 | Notice of proposed sale | Sep 10, 2024 | — |
| 6-K | Current report (foreign issuer) | Aug 12, 2024 | Aug 12, 2024 |
| 6-K | Current report (foreign issuer) | Aug 1, 2024 | Jun 30, 2024 |
| 6-K | Current report (foreign issuer) | Jul 31, 2024 | Jul 31, 2024 |
| 144 | Notice of proposed sale | Jun 17, 2024 | — |
| 144 | Notice of proposed sale | Jun 3, 2024 | — |
| 144 | Notice of proposed sale | Jun 3, 2024 | — |
| IRANNOTICE | Filing | May 29, 2024 | — |
| 20-F | Annual report (foreign issuer) | May 29, 2024 | Mar 31, 2024 |
| 6-K | Current report (foreign issuer) | May 8, 2024 | May 8, 2024 |
| 144 | Notice of proposed sale | Mar 18, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| 6-K | Current report (foreign issuer) | Feb 8, 2024 | Dec 31, 2023 |
| 6-K | Current report (foreign issuer) | Feb 7, 2024 | Feb 7, 2024 |
| 6-K | Current report (foreign issuer) | Nov 13, 2023 | Nov 13, 2023 |
| 6-K | Current report (foreign issuer) | Nov 9, 2023 | Sep 30, 2023 |
| 6-K | Current report (foreign issuer) | Nov 8, 2023 | Nov 8, 2023 |
| S-8 | Employee stock plan registration | Sep 15, 2023 | — |
| 424B4 | Prospectus | Sep 14, 2023 | — |
| EFFECT | Filing | Sep 13, 2023 | — |
| EFFECT | Filing | Sep 13, 2023 | — |
| CERT | 8a cert | Sep 13, 2023 | — |
| 8-A12B | Filing | Sep 12, 2023 | — |
| CORRESP | Letter to the SEC | Sep 11, 2023 | — |
| CORRESP | Letter to the SEC | Sep 11, 2023 | — |
| CORRESP | Letter to the SEC | Sep 7, 2023 | — |
| F-1/A | Filing | Sep 7, 2023 | — |
| UPLOAD | Letter from the SEC | Sep 7, 2023 | — |
| F-6/A | Filing | Sep 5, 2023 | — |
| CORRESP | Letter to the SEC | Sep 5, 2023 | — |
| F-1/A | Filing | Sep 5, 2023 | — |
| F-1/A | Filing | Sep 1, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 28, 2023 | — |
| F-6 | Filing | Aug 22, 2023 | — |
| CORRESP | Letter to the SEC | Aug 21, 2023 | — |
| F-1 | Registration statement (foreign issuer) | Aug 21, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 10, 2023 | — |
| DRS | Filing | Aug 7, 2023 | — |
| DRSLTR | Filing | Jul 31, 2023 | — |
| DRS/A | Filing | Jul 31, 2023 | — |
| UPLOAD | Letter from the SEC | Jun 15, 2023 | — |
| DRS/A | Filing | Jun 12, 2023 | — |
| DRSLTR | Filing | Jun 9, 2023 | — |
| UPLOAD | Letter from the SEC | May 25, 2023 | — |
| DRSLTR | Filing | Apr 28, 2023 | — |
| DRS | Filing | Apr 28, 2023 | — |
Showing 162 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- ARM (Nasdaq)
- Fiscal year ends
- March 31
- Incorporated in
- United Kingdom
- Headquarters
- Cambridge, United Kingdom
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1973239
- Former names
- Arm Holdings Ltd (until Sep 1, 2023)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.