Form4insider filings, from the source

Company · CIK 0001178670 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

ALNYLAM PHARMACEUTICALS, INC. · ALNY

Insider activity reported against this company. All insider holders · Files at: RGLS. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $1.1M · 1net −$1.1M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesMar 28Apr 27May 28Jun 28Jul 29Aug 28Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 19, 2026 AForm 4 →Sep 22, 4:07 pm EDTYvonne GreenstreetChief Executive Officer, Director107——95,802—
Jun 1, 2026 SForm 4 →Jun 3, 4:25 pm EDTDavid E I PyottDirector3,830$299.18$1,145,8531,582−70.8%10b5-1
Jun 1, 2026 MForm 4 →Jun 3, 4:25 pm EDTDavid E I PyottDirector3,830——5,412—10b5-1

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 1, 2026 MForm 4 →Jun 3, 4:25 pm EDTDavid E I PyottDirector3,830——0—10b5-1
Jun 1, 2026 AForm 4 →Jun 3, 4:23 pm EDTBenjamin CravattDirector4,393——4,393—

Filed by this entity as an insider elsewhere — common stock

No reported common-stock activity in this period.

Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.