ALNY insider trading — Alnylam Pharmaceuticals, Inc.
Over the last 90 days, insiders at Alnylam Pharmaceuticals, Inc. (ALNY) made 0 open-market purchases worth $0 and 1 open-market sale worth $399K, making them net sellers by $399K. The largest sale was by Supran Bryan (EVP, CLO and Secretary), who sold 1,758 shares for $399K on Oct 2, 2026.
Updated Oct 16, 2026.
Recent ALNY insider transactions
Every Form 4 filed by Alnylam Pharmaceuticals, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Supran Bryan | EVP, CLO and Secretary | S · Sale | Direct | 1,758 | $226.88 | $399K | Form 4 |
| Sep 19, 2026 | Greenstreet Yvonne | Chief Executive Officer | A · Grant/award | Direct | 107 | — | — | Form 4 |
ALNY insider trading FAQ
Are insiders buying ALNY stock?
Not on the open market. In the last 90 days, Alnylam Pharmaceuticals, Inc. insiders made no open-market purchases, and 1 open-market sale totaling $399K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading ALNY?
Recent sellers: Supran Bryan.
Where does ALNY insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.