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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account
End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Oct 2, 2026Reported sale · Form 4David Joseph Gaffin, EVP, CLO, Alkermes, Inc. · $83.5KOpen the filing ↗
- Oct 2, 2026Notice of sale · Form 144Gaffin David Joseph · Officer · $83.5KOpen the filing ↗
- Sep 21, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year251
SEC filings on record1,82210 flagged findings
Reported transactions (Form 4)80since Apr 11, 2026 · and 10 other holdings
Corporate events (8-K)30since May 27, 2022
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
Alkermes plc is a fully-integrated biopharmaceutical company that focuses on developing medicines for psychiatric and neurological disorders. The company was founded in 1987 by Michael Wall. In September 2011 Alkermes, Inc. merged with Elan Drug Technologies (EDT), the former drug formulation and manufacturing division of Élan Corporation, plc. The company is headquartered in Dublin, and has an R&D center in Waltham, Massachusetts, and a manufacturing facility in Wilmington, Ohio.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
The 25 most recent filings (of 1,822)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Oct 2, 26Form 144 ↗Notice of proposed sale
- Oct 2, 26Form 4 ↗Insider transaction
- Sep 21, 268-K ↗Current report · Communication to the market · Other events
- Sep 18, 26Form 3 ↗Insider transaction
- Sep 16, 268-K ↗Current report · A senior executive left or was appointed
- Sep 3, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 4 ↗Insider transaction
- Sep 1, 26Form 144 ↗Notice of proposed sale
- Sep 1, 26Form 4 ↗Insider transaction
- Aug 17, 26Form 144 ↗Notice of proposed sale
- Aug 17, 26Form 4 ↗Insider transaction
- Aug 12, 268-K ↗Current report · Entered a material agreement
- Aug 7, 26Form 4 ↗Insider transaction
Notice of proposed sale · 3 Form 144 filingsshow all 3hide
- Aug 3, 26Form 144 ↗Notice of proposed sale
- Aug 3, 26Form 144 ↗Notice of proposed sale
- Aug 3, 26Form 144 ↗Notice of proposed sale
- Aug 3, 268-K/A ↗Current report · A senior executive left or was appointed · amendment
- Jul 28, 2610-Q ↗Quarterly report
- Jul 28, 268-K ↗Current report · Results
- Jul 8, 268-K ↗Current report · A material agreement was terminated
1,822 filings on record, the oldest from Sep 16, 11.
Listing the 25 most recent filings of the 1,822 on record.
24449
- Sep 16, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Aug 12, 26Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Aug 3, 26A senior executive left or was appointed8-K/A 5.02 ↗
- Jul 8, 26A material agreement was terminated8-K 1.02 ↗
- May 20, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Feb 25, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Feb 12, 26Entered a material agreement+5 more in the same filing8-K 1.01 ↗
- Nov 19, 25Took on a new financial obligation+3 more in the same filing8-K 2.03 ↗
- Oct 22, 25Entered a material agreement+4 more in the same filing8-K 1.01 ↗
- Sep 12, 25Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Sep 12, 25A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- May 21, 25A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
12 older filings not shown · The record reaches back to Sep 16, 11.
Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.
- Oct 23, 19Restructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
- Apr 9, 13Restructuring plan with committed costs8-K 2.05 ↗
The full record holds 2 stress filings.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- BlackRock, Inc.15.8%Mar 31, 25SCHEDULE 13G/A ↗
- Baker Bros. Advisors LP6.1%Dec 31, 25SCHEDULE 13G ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
- Vanguard Portfolio Management5.8%Mar 31, 26SCHEDULE 13G ↗
- Vanguard Capital Management5.2%Mar 31, 26SCHEDULE 13G ↗
- STATE STREET CORPORATION5.2%Sep 30, 25SCHEDULE 13G ↗1 earlier filing
show 2 more holdershide
- Wellington Management Group LLP4.3%Dec 31, 24SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
- T. Rowe Price Associates, Inc.2.8%Mar 31, 26SCHEDULE 13G/A ↗1 earlier filing
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Oct 2, Gaffin David Joseph filed notice of intent to sell up to $83K. It is filed under a scheduled plan (10b5-1), arranged in advance.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $83K on Oct 2, per their Form 4. That is 100% of the shares announced so far, and the window is still open.
View notice (Form 144) ↗+8 more recent notices · 8 with a later sale
- Oct 2, 26Sell$83KDavid Joseph GaffinEVP, CLO, Alkermes, Inc.↗
- Sep 3, 26Sell$98KDavid Joseph GaffinEVP, CLO, Alkermes, Inc.↗
- Sep 1, 26Sell$423KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Aug 17, 26Sell$340KChristian Todd NicholsSVP, Chief Commercial Officer↗
- Aug 17, 26Sell$33KChristian Todd NicholsSVP, Chief Commercial Officer↗
- Aug 3, 26Sell$99KDavid Joseph GaffinEVP, CLO, Alkermes, Inc.↗
- Aug 3, 26Sell$437KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Aug 3, 26Sell$2.2Mnancy lynn snyderman MD↗
- Jul 6, 26Sell$110KDavid Joseph GaffinEVP, CLO, Alkermes, Inc.↗
- Jul 1, 26Sell$427KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Jul 1, 26Sell$36KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Jun 12, 26Sell$90KChristopher I Wright↗
There are 3 more transactions in this stretch.
Stock compensation, tax and giftsshow the 25 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Oct 8, 26Compensationamount n/aJoshua ReedSVP, Chief Financial Officer↗
- Oct 8, 26Tax$163KJoshua ReedSVP, Chief Financial Officer↗
- Sep 1, 26Compensation$123KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Aug 3, 26Compensation$2KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Aug 3, 26Compensation$120KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Aug 3, 26Compensation$1.3Mnancy lynn snyderman MD↗
- Aug 3, 26Compensation$772Knancy lynn snyderman MD↗
- Jul 1, 26Compensation$97KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- Jun 1, 26Compensation$97KCraig C. HopkinsonEVP R&D, Chief Medical Officer↗
- May 29, 26Compensation$68KSamuel Joseph ParisiVP, Finance (Interim PAO)↗
- May 29, 26Compensation$248KSamuel Joseph ParisiVP, Finance (Interim PAO)↗
- May 21, 26Compensationamount n/aShane Cooke↗
- May 21, 26Tax$118KShane Cooke↗
- May 21, 26Compensationamount n/aRICHARD GAYNOR↗
- May 21, 26Tax$55KRICHARD GAYNOR↗
- May 21, 26Compensationamount n/aCATO T LAURENCIN↗
- May 21, 26Tax$55KCATO T LAURENCIN↗
- May 21, 26Compensationamount n/aNancy Lurker↗
- May 21, 26Tax$55KNancy Lurker↗
- May 21, 26Compensationamount n/aBRIAN P MCKEON↗
- May 21, 26Tax$55KBRIAN P MCKEON↗
- May 21, 26Compensationamount n/anancy lynn snyderman MD↗
- May 21, 26Tax$55Knancy lynn snyderman MD↗
- May 21, 26Compensationamount n/aFrank Anders Wilson↗
- May 21, 26Tax$55KFrank Anders Wilson↗
The full record holds 446 transactions and goes back to Feb 10, 23.
Its sector and its market
Alkermes plc among Health Care companies
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- 251 clean closes in the period.
- SEC records
- 1,822 documents on file, from Sep 16, 2011 to Oct 9, 2026.
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- Wikipedia, read on Sep 3, 2026.
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- Generated on Oct 17, 2026; refreshed through the day.
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Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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