Form4insider filings, from the source

Company · CIK 0001520262 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Alkermes plc. · ALKS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $521k · 2net −$521k
$10k$10k$100k$100k$1M$1MbuyssalesAug 27Sep 1Sep 6Sep 11Sep 17Sep 22Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 3, 2026 SForm 4 →Sep 3, 6:32 pm EDTDavid Joseph GaffinEVP, CLO, Alkermes, Inc.2,034$48.01$97,652223,422−0.90%10b5-1
Sep 1, 2026 SForm 4 →Sep 1, 7:08 pm EDTCraig C. HopkinsonEVP R&D, Chief Medical Officer9,000$46.99$422,87465,389−12.1%10b5-1
Sep 1, 2026 MForm 4 →Sep 1, 7:08 pm EDTCraig C. HopkinsonEVP R&D, Chief Medical Officer5,000$24.59$122,95074,389—10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 MForm 4 →Sep 1, 7:08 pm EDTCraig C. HopkinsonEVP R&D, Chief Medical Officer5,000——61,276—10b5-1