GAFFIN DAVID JOSEPH

PrivateCIK: 1675905
Location

WALTHAM, MA

Senior insider sale

EVP, CLO, Alkermes, Inc. at ALKERMES PLC. — senior position signals high conviction

$434.1K

10.17K shares

What this filing means

GAFFIN DAVID JOSEPH plans to sell 10.17K shares of ALKERMES PLC. valued at approximately $434.1K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderGAFFIN DAVID JOSEPHCIK 1675905
IssuerALKERMES PLC.CIK 1520262
Officer· EVP, CLO, Alkermes, Inc.
Since Mar 2026
10.17K
Shares to sell
$434.1K
Approx. market value
2.03K
Acquired (3 months)
1
Planned
4 completed
Securities Acquired — Last 3 Months4
Sort

Vesting of performance share unit awards

Granted as part of issuer equity compensation plan

10/5/2016
126.00

Vesting of restricted stock unit award

Granted as part of issuer equity compensation plan

5/28/2016
844.00

Vesting of restricted stock unit award

Granted as part of issuer equity compensation plan

5/28/2014
843.00

Vesting of restricted stock unit award

Granted as part of issuer equity compensation plan

5/21/2014
221.00
Total acquired2.03K
Planned & Completed Dispositions5
Sort

Completed

Completed

Units to sell

2.03K

Market value

$109.9K

7/6/2026
Completed

Units to sell

2.03K

Market value

$87.6K

6/4/2026
Completed

Units to sell

2.03K

Market value

$67.5K

5/4/2026
Completed

Units to sell

2.03K

Market value

$70.3K

4/6/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

2.03K

Market value

$98.8K

8/3/2026
Total

Units

10.17K

Value

$434.1K