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 |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 3, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2026 | Nov 3, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 21, 2026 | Sep 21, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 16, 2026 | Sep 14, 2026 |
| 8-K |
Current report
Material agreement
|
Aug 12, 2026 | Aug 12, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 3, 2026 | Feb 24, 2026 |
| S-8 | Employee stock plan registration | Jul 28, 2026 | — |
| 10-Q | Quarterly report | Jul 28, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2026 | Jul 28, 2026 |
| 8-K |
Current report
Agreement ended
|
Jul 8, 2026 | Jul 6, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 15, 2026 | Jun 15, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 20, 2026 | May 20, 2026 |
| DEFA14A | Additional proxy material | May 13, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 12, 2026 | May 12, 2026 |
| 10-Q | Quarterly report | May 5, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| 8-K/A | Amended current report | May 1, 2026 | Feb 12, 2026 |
| ARS | Annual report to shareholders | Apr 6, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 6, 2026 | — |
| DEF 14A | Proxy statement | Apr 6, 2026 | May 20, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 27, 2026 | May 20, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 25, 2026 | Feb 24, 2026 |
| 10-K | Annual report | Feb 25, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 25, 2026 | Feb 25, 2026 |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets, New debt, Regulation FD disclosure
|
Feb 12, 2026 | Feb 12, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 12, 2026 | Jan 12, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 6, 2026 | Jan 6, 2026 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Nov 19, 2025 | Nov 18, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 12, 2025 | Nov 12, 2025 |
| 10-Q | Quarterly report | Oct 28, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2025 | Oct 28, 2025 |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Regulation FD disclosure
|
Oct 22, 2025 | Oct 22, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 12, 2025 | Aug 15, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 12, 2025 | Sep 12, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 8, 2025 | Sep 8, 2025 |
| S-8 | Employee stock plan registration | Jul 29, 2025 | — |
| 10-Q | Quarterly report | Jul 29, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2025 | Jul 29, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 21, 2025 | Jul 21, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2025 | May 21, 2025 |
| DEFA14A | Additional proxy material | May 12, 2025 | — |
| 10-Q | Quarterly report | May 1, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 1, 2025 | May 1, 2025 |
| 8-K |
Current report
Other events
|
Apr 16, 2025 | Apr 14, 2025 |
| ARS | Annual report to shareholders | Apr 7, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 7, 2025 | — |
| DEF 14A | Proxy statement | Apr 7, 2025 | May 21, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 28, 2025 | May 21, 2025 |
| 10-K | Annual report | Feb 12, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 12, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Agreement ended
|
Dec 19, 2024 | Dec 19, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 2, 2024 | Dec 2, 2024 |
| 10-Q | Quarterly report | Oct 24, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 24, 2024 | Oct 24, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 9, 2024 | Oct 9, 2024 |
| S-8 | Employee stock plan registration | Jul 24, 2024 | — |
| 10-Q | Quarterly report | Jul 24, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2024 | Jul 24, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 31, 2024 | May 31, 2024 |
| DEFA14A | Additional proxy material | May 14, 2024 | — |
| 10-Q | Quarterly report | May 1, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| ARS | Annual report to shareholders | Apr 15, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 15, 2024 | — |
| DEF 14A | Proxy statement | Apr 15, 2024 | May 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 9, 2024 | Apr 9, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 5, 2024 | Apr 5, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 7, 2024 | Mar 5, 2024 |
| 10-K | Annual report | Feb 21, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 15, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 5, 2024 | Feb 1, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2024 | Jan 8, 2024 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Dec 14, 2023 | Dec 13, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 8, 2023 | Dec 4, 2023 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Nov 15, 2023 | Nov 13, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 31, 2023 | Oct 31, 2023 |
| 8-K |
Current report
Other events
|
Oct 27, 2023 | Oct 27, 2023 |
| 10-Q | Quarterly report | Oct 25, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2023 | Oct 25, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 23, 2023 | Oct 23, 2023 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Aug 30, 2023 | Aug 29, 2023 |
| S-8 | Employee stock plan registration | Jul 26, 2023 | — |
| 10-Q | Quarterly report | Jul 26, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2023 | Jul 26, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jul 6, 2023 | Jun 29, 2023 |
| 8-K |
Current report
Material agreement
|
Jul 5, 2023 | Jun 28, 2023 |
| DFAN14A | Filing | Jun 28, 2023 | — |
| DFAN14A | Filing | Jun 28, 2023 | — |
| DEFA14A | Additional proxy material | Jun 26, 2023 | — |
| DFAN14A | Filing | Jun 26, 2023 | — |
| DEFA14A | Additional proxy material | Jun 26, 2023 | — |
| DEFA14A | Additional proxy material | Jun 26, 2023 | — |
| DFAN14A | Filing | Jun 22, 2023 | — |
| DEFA14A | Additional proxy material | Jun 21, 2023 | — |
| DEFA14A | Additional proxy material | Jun 21, 2023 | — |
| DEFA14A | Additional proxy material | Jun 21, 2023 | — |
| DEFA14A | Additional proxy material | Jun 20, 2023 | — |
| DFAN14A | Filing | Jun 20, 2023 | — |
| DEFA14A | Additional proxy material | Jun 20, 2023 | — |
| DFAN14A | Filing | Jun 15, 2023 | — |
| DEFA14A | Additional proxy material | Jun 14, 2023 | — |
| DEFA14A | Additional proxy material | Jun 13, 2023 | — |
| DEFA14A | Additional proxy material | Jun 13, 2023 | — |
| DFAN14A | Filing | Jun 13, 2023 | — |
| DEFA14A | Additional proxy material | Jun 13, 2023 | — |
| DEFA14A | Additional proxy material | Jun 12, 2023 | — |
| DFAN14A | Filing | Jun 9, 2023 | — |
| DEFA14A | Additional proxy material | Jun 8, 2023 | — |
| DEFA14A | Additional proxy material | Jun 8, 2023 | — |
| DEFA14A | Additional proxy material | Jun 7, 2023 | — |
| DFAN14A | Form dfan14a | Jun 6, 2023 | — |
| DEFA14A | Additional proxy material | Jun 6, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 6, 2023 | May 31, 2023 |
| DFAN14A | Filing | Jun 5, 2023 | — |
| DEFC14A | Filing | Jun 2, 2023 | — |
| DEFA14A | Additional proxy material | May 25, 2023 | — |
| DEFA14A | Additional proxy material | May 25, 2023 | — |
| ARS | Annual report to shareholders | May 25, 2023 | Dec 31, 2022 |
| DEFC14A | Filing | May 25, 2023 | — |
| PRRN14A | Form prrn14a | May 22, 2023 | — |
| CORRESP | Letter to the SEC | May 19, 2023 | — |
| UPLOAD | Letter from the SEC | May 19, 2023 | — |
| PRER14A | Filing | May 19, 2023 | — |
| UPLOAD | Letter from the SEC | May 16, 2023 | — |
| PREC14A | Form prec14a | May 15, 2023 | — |
| DEFA14A | Additional proxy material | May 8, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 8, 2023 | May 8, 2023 |
| PREC14A | Filing | May 8, 2023 | — |
| 10-K/A | Amended annual report | Apr 26, 2023 | Dec 31, 2022 |
| 10-Q | Quarterly report | Apr 26, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2023 | Apr 26, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Apr 25, 2023 | Apr 19, 2023 |
| 10-K | Annual report | Feb 16, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 16, 2023 | Feb 16, 2023 |
| DEFA14A | Additional proxy material | Feb 7, 2023 | — |
| 8-K |
Current report
Other events
|
Feb 6, 2023 | Feb 3, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 9, 2023 | Jan 9, 2023 |
| 8-K |
Current report
Other events
|
Jan 6, 2023 | Dec 21, 2022 |
| 8-K |
Current report
Other events
|
Nov 15, 2022 | Nov 13, 2022 |
| 10-Q | Quarterly report | Nov 2, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2022 | Nov 2, 2022 |
| 8-K |
Current report
Other events
|
Oct 19, 2022 | Oct 13, 2022 |
| S-8 | Employee stock plan registration | Jul 27, 2022 | — |
| 10-Q | Quarterly report | Jul 27, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2022 | Jul 27, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Regulation FD disclosure
|
Jul 7, 2022 | Jul 7, 2022 |
| DEFC14A | Filing | Jun 6, 2022 | — |
| DEFA14A | Additional proxy material | May 31, 2022 | — |
| DEFA14A | Additional proxy material | May 27, 2022 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 27, 2022 | May 24, 2022 |
| PREC14A | Filing | May 26, 2022 | — |
| DEFA14A | Additional proxy material | May 13, 2022 | — |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2022 | May 13, 2022 |
| 10-K/A | Amended annual report | Apr 29, 2022 | Dec 31, 2021 |
| 10-Q | Quarterly report | Apr 27, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2022 | Apr 27, 2022 |
| 8-K |
Current report
Other events
|
Apr 19, 2022 | Apr 19, 2022 |
| DEF 14A | Proxy statement | Apr 18, 2022 | May 13, 2022 |
| PRE 14A | Preliminary proxy statement | Apr 8, 2022 | Apr 8, 2022 |
| DEFA14A | Additional proxy material | Feb 16, 2022 | — |
| 10-K | Annual report | Feb 16, 2022 | Dec 31, 2021 |
| DEFA14A | Additional proxy material | Feb 16, 2022 | — |
| 8-K |
Current report
Results of operations
|
Feb 16, 2022 | Feb 16, 2022 |
| DEFA14A | Additional proxy material | Jan 11, 2022 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 11, 2022 | Jan 11, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 19, 2021 | Nov 18, 2021 |
| 8-K |
Current report
Agreement ended, Regulation FD disclosure
|
Nov 8, 2021 | Nov 2, 2021 |
| 10-Q | Quarterly report | Oct 27, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2021 | Oct 27, 2021 |
| S-8 | Employee stock plan registration | Jul 28, 2021 | — |
| 10-Q | Quarterly report | Jul 28, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2021 | Jul 28, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 14, 2021 | Jun 14, 2021 |
| DEFA14A | Additional proxy material | Jun 8, 2021 | — |
| 8-K |
Current report
Other events
|
Jun 1, 2021 | Jun 1, 2021 |
| DEFA14A | Additional proxy material | May 20, 2021 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 20, 2021 | May 18, 2021 |
| DEF 14A | Proxy statement | May 10, 2021 | Jun 14, 2021 |
| PRE 14A | Preliminary proxy statement | Apr 30, 2021 | Jun 14, 2021 |
| DEFA14A | Additional proxy material | Apr 30, 2021 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Apr 30, 2021 | Apr 29, 2021 |
| 10-K/A | Amended annual report | Apr 29, 2021 | Dec 31, 2020 |
| 10-Q | Quarterly report | Apr 28, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2021 | Apr 28, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 25, 2021 | Mar 25, 2021 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 12, 2021 | Mar 12, 2021 |
| 10-K | Annual report | Feb 11, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2021 | Feb 11, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 11, 2021 | Jan 11, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 6, 2021 | Jan 5, 2021 |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Dec 10, 2020 | Dec 9, 2020 |
| 8-K |
Current report
Other events
|
Nov 17, 2020 | Nov 17, 2020 |
| 10-Q | Quarterly report | Oct 29, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2020 | Oct 29, 2020 |
| 8-K |
Current report
Other events
|
Oct 9, 2020 | Oct 9, 2020 |
| 8-K |
Current report
Other events
|
Sep 9, 2020 | Sep 9, 2020 |
| S-8 | Employee stock plan registration | Jul 29, 2020 | — |
| S-8 POS | S-8 pos 333-184621 | Jul 29, 2020 | — |
| S-8 POS | Filing | Jul 29, 2020 | — |
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)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
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- Merck & Co., Inc. MRK
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- Astrazeneca PLC AZN
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.