Alkermes EVP & CLO David Gaffin Sells 2,034 Shares

What Happened

• David Joseph Gaffin, Executive Vice President and Chief Legal Officer of Alkermes plc (ALKS), disposed of 2,034 shares on 2026-09-03 at $48.01 per share, for total proceeds of $97,652. The Form 4 lists the transaction as an open market or private sale (code S).
• This was a sale (disposition), which is often routine for insiders; the filing notes the sale was executed under a pre-established Rule 10b5-1 trading plan.

Key Details

• Transaction date and price: 2026-09-03 — 2,034 shares at $48.01 each; total $97,652.
• Filing date: Form 4 filed 2026-09-03 (no indication of a late filing in the report).
• Shares owned after transaction: not specified in the provided filing.
• Footnote: Sale effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 11/19/2025.
• Transaction code: S = Sale (open market/private sale).

Context

• Trades executed under a 10b5-1 plan are prearranged and can limit the extent to which a sale reflects the insider’s current view of the company; they are generally viewed as routine.
• Sales (dispositions) are less informative than purchases when assessing insider sentiment; this transaction should be viewed as a routine disposition unless additional filings or context indicate otherwise.