Key facts
- This page summarizes Blair C. Jackson's Form 4 filing for Alkermes plc. (ALKS).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 27 Feb 2026, 16:39.
Blair C. Jackson - 26 Feb 2026 Form 4 Insider Report for Alkermes plc. (ALKS)
- Reporting relationship
- EVP, Chief Operating Officer
- Issuer ticker
- ALKS
- Reported as of
- 26 Feb 2026
- Net transaction value
- -$113,547
- SEC form
- 4
- Accepted by SEC
- 27 Feb 2026, 16:39:17 UTC
- Prior SEC filing
- 25 Feb 2026
- Next SEC filing
- 04 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Blair C. Jackson filed Form 4 for Alkermes plc. (ALKS) on 27 Feb 2026.
Change
- Previous filing in this sequence was filed on 25 Feb 2026.
- Current net transaction value: -$113,547.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001842348
Primary reporting owner
Jackson Blair Curtis
- Relationship
- EVP, Chief Operating Officer
- Address
- 900 WINTER ST., WALTHAM
- Signature
- /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson
- Signature date
- 27 Feb 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ALKS
transaction
Ordinary Shares
Options Exercise
- Transaction value
- Shares
- +8,322
- Change %
- +3.5%
- Price
- Shares after
- 245,003
- Date
- 26 Feb 2026
- Ownership
- Direct
- Footnotes
- F1
ALKS
transaction
Ordinary Shares
Tax liability
- Transaction value
- $113,547
- Shares
- -3,695
- Change %
- -1.5%
- Price
- $30.73
- Shares after
- 241,308
- Date
- 26 Feb 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ALKS
transaction
Derivative
Restricted Stock Unit Award
Options Exercise
- Transaction value
- Shares
- -8,322
- Change %
- -33%
- Price
- Shares after
- 16,645
- Date
- 26 Feb 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 8,322
- Exercise price
- Footnotes
- F1, F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Each restricted stock unit represents a contingent right to receive one ordinary share.
Footnote F2
Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/26/2025.