Alkermes plc. SEC filings ALKS
Alkermes plc. has 1,000 filings in SEC EDGAR's recent list, going back to May 4, 2017. Its latest annual report, Form ARS, was filed on Apr 6, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 3, 2026 |
| 144 | Notice of proposed sale | Nov 3, 2026 | — |
| 4 | Insider transaction | Oct 9, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 9, 2026 | Oct 7, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Oct 2, 2026 |
| 144 | Notice of proposed sale | Oct 2, 2026 | — |
| 3 | Initial insider ownership | Sep 18, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 3, 2026 | Sep 3, 2026 |
| 144 | Notice of proposed sale | Sep 3, 2026 | — |
| 4 | Insider transaction | Sep 1, 2026 | Sep 1, 2026 |
| 144 | Notice of proposed sale | Sep 1, 2026 | — |
| 4 | Insider transaction | Aug 17, 2026 | Aug 17, 2026 |
| 144 | Notice of proposed sale | Aug 17, 2026 | — |
| 4 | Insider transaction | Aug 7, 2026 | Aug 5, 2026 |
| 4 | Insider transaction | Aug 3, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 3, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 3, 2026 | Aug 3, 2026 |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| 4 | Insider transaction | Jul 6, 2026 | Jul 6, 2026 |
| 144 | Notice of proposed sale | Jul 6, 2026 | — |
| 4 | Insider transaction | Jul 1, 2026 | Jul 1, 2026 |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 4 | Insider transaction | Jun 12, 2026 | Jun 12, 2026 |
| 144 | Notice of proposed sale | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 4, 2026 | Jun 4, 2026 |
| 144 | Notice of proposed sale | Jun 4, 2026 | — |
| 4 | Insider transaction | Jun 1, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 4 | Insider transaction | May 29, 2026 | May 29, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4/A | Primary document | May 22, 2026 | May 20, 2026 |
| 4/A | Primary document | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 22, 2026 | May 20, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | May 4, 2026 | May 4, 2026 |
| 144 | Notice of proposed sale | May 4, 2026 | — |
| 4 | Insider transaction | May 1, 2026 | May 1, 2026 |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| 4 | Insider transaction | Apr 13, 2026 | Apr 11, 2026 |
| 4 | Insider transaction | Apr 6, 2026 | Apr 6, 2026 |
| 144 | Notice of proposed sale | Apr 6, 2026 | — |
| 4 | Insider transaction | Apr 1, 2026 | Apr 1, 2026 |
| 144 | Notice of proposed sale | Apr 1, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 4 | Insider transaction | Feb 2, 2026 | Feb 2, 2026 |
| 4 | Insider transaction | Feb 2, 2026 | Feb 2, 2026 |
| 144 | Notice of proposed sale | Feb 2, 2026 | — |
| 144 | Notice of proposed sale | Feb 2, 2026 | — |
| 144 | Notice of proposed sale | Jan 8, 2026 | — |
| 4 | Insider transaction | Jan 8, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 2, 2026 | Jan 2, 2026 |
| 144 | Notice of proposed sale | Jan 2, 2026 | — |
| 4 | Insider transaction | Dec 5, 2025 | Dec 3, 2025 |
| 144 | Notice of proposed sale | Dec 3, 2025 | — |
| 4 | Insider transaction | Dec 1, 2025 | Dec 1, 2025 |
| 144 | Notice of proposed sale | Dec 1, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 10, 2025 | — |
| 4 | Insider transaction | Nov 3, 2025 | Nov 3, 2025 |
| 144 | Notice of proposed sale | Nov 3, 2025 | — |
| 4 | Insider transaction | Oct 15, 2025 | Oct 15, 2025 |
| 144 | Notice of proposed sale | Oct 15, 2025 | — |
| 4 | Insider transaction | Oct 10, 2025 | Oct 8, 2025 |
| 3 | Initial insider ownership | Sep 23, 2025 | Sep 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 4, 2025 | Aug 3, 2025 |
| 4 | Insider transaction | Jun 10, 2025 | Jun 9, 2025 |
| 4 | Insider transaction | Jun 10, 2025 | Jun 8, 2025 |
| 144 | Notice of proposed sale | Jun 10, 2025 | — |
| 144 | Notice of proposed sale | Jun 9, 2025 | — |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | Jun 2, 2025 | May 31, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 28, 2025 | — |
| 4 | Insider transaction | Apr 14, 2025 | Apr 11, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 144 | Notice of proposed sale | Feb 13, 2025 | — |
| 144 | Notice of proposed sale | Feb 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 10, 2025 | — |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Jan 31, 2025 | Jan 30, 2025 |
| 144 | Notice of proposed sale | Jan 30, 2025 | — |
| 4 | Insider transaction | Dec 9, 2024 | Dec 9, 2024 |
| 4 | Insider transaction | Dec 9, 2024 | Dec 8, 2024 |
| 144 | Notice of proposed sale | Dec 9, 2024 | — |
| 144 | Notice of proposed sale | Dec 9, 2024 | — |
| 4 | Insider transaction | Dec 5, 2024 | Dec 5, 2024 |
| 144 | Notice of proposed sale | Dec 5, 2024 | — |
| 4 | Insider transaction | Dec 4, 2024 | Dec 4, 2024 |
| 144 | Notice of proposed sale | Dec 4, 2024 | — |
| 144 | Notice of proposed sale | Nov 27, 2024 | — |
| 4 | Insider transaction | Nov 27, 2024 | Nov 27, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 11, 2024 |
| 144 | Notice of proposed sale | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 6, 2024 |
| 144 | Notice of proposed sale | Nov 6, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 4, 2024 | — |
| 4 | Insider transaction | Aug 5, 2024 | Aug 3, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 29, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 9, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 8, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
Showing 200 filings, the most recent 200. 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- ALKS (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Dublin 4, Ireland
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1520262
- Former names
- ANTLER SCIENCE TWO PLC (until Aug 5, 2011); Antler Science Two Ltd (until Aug 2, 2011)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.