Key facts
- David Joseph Gaffin has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $7,687,725.
- Recent insider filing activity is available below.
Insider Trading & Ownership of David Joseph Gaffin
- Location
- Waltham, MA
- Summary
- The estimated net worth of David Joseph Gaffin is at least $7,687,725 dollars as of 04 May 2026. David Joseph Gaffin is the EVP, CLO, Alkermes, Inc. of Alkermes plc. and owns shares of Alkermes plc. (ALKS) stock worth about $7.69M.
- Signature
- /s/ Shantale Greenson, attorney-in-fact for David Joseph Gaffin
- All Insider Reports
- All Insider Reports
Follow Filing Activity
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Change
- Largest disclosed position: Alkermes plc. ($7,687,725).
- Past-year value change for that position: -$257,952.
Research use
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of David Joseph Gaffin
ALKS
Forms 3/4/5
Alkermes plc.
- Relationship
- EVP, CLO, Alkermes, Inc.
- Holdings value
- $7,687,725
- Past year net change
- -$257,952
- Change %
- -3.2%
- Report period
- 04 May 2026
Insider Transactions Reported by David Joseph Gaffin:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.