Alnylam Pharmaceuticals, Inc (ALNY) insider trading
Every open-market stock purchase and sale by Alnylam Pharmaceuticals, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Bryan Supran (C-suite exec) sold $399K in the last 90 days.
- Last insider buy: Colleen F Reitan (Director), $1.2K, 2 years ago.
- Congress: Cory A Booker sold $1K to $15K, 2 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $43.8M (26 sales). Last close $225.10 on Oct 21, 2026.
Recent ALNY insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 2, 2026 | Bryan Supran (C-suite exec) | Sold | $399K |
| Sep 19, 2026 | Yvonne Greenstreet (CEO) | Bought (not open market) | — |
| Aug 11, 2026 | Cory A Booker (Senator) | Sold | $1K–15K |
| Jun 1, 2026 | David E I Pyott (Director) | Sold | $366K |
| Jun 1, 2026 | David E I Pyott (Director) | Sold | $351K |
| Jun 1, 2026 | David E I Pyott (Director) | Sold | $274K |
| Jun 1, 2026 | David E I Pyott (Director) | Sold | $149K |
| Jun 1, 2026 | David E I Pyott (Director) | Sold | $5.1K |
| Jun 1, 2026 | Benjamin Cravatt (Director) | Bought (not open market) | — |
| Jun 1, 2026 | David E I Pyott (Director) | Bought (not open market) | — |
| May 20, 2026 | David E I Pyott (Director) | Bought (not open market) | — |
| May 20, 2026 | Colleen F Reitan (Director) | Bought (not open market) | — |
| May 20, 2026 | Colleen F Reitan (Director) | Bought (not open market) | — |
| May 20, 2026 | Amy W Schulman (Director) | Bought (not open market) | — |
| May 20, 2026 | Amy W Schulman (Director) | Bought (not open market) | — |
| May 20, 2026 | Charles Elliott Sigal (Director) | Bought (not open market) | — |
| May 20, 2026 | Charles Elliott Sigal (Director) | Bought (not open market) | — |
| May 20, 2026 | Stuart A Arbuckle (Director) | Bought (not open market) | — |
| May 20, 2026 | Peter N Kellogg (Director) | Bought (not open market) | — |
| May 20, 2026 | Stuart A Arbuckle (Director) | Bought (not open market) | — |
| May 20, 2026 | Dennis A Ausiello (Director) | Bought (not open market) | — |
| May 20, 2026 | Dennis A Ausiello (Director) | Bought (not open market) | — |
| May 20, 2026 | Olivier Brandicourt (Director) | Bought (not open market) | — |
| May 20, 2026 | Olivier Brandicourt (Director) | Bought (not open market) | — |
| May 20, 2026 | Margaret A Hamburg (Director) | Bought (not open market) | — |
Who's trading ALNY
- Bryan Supran, C-suite exec: sold $399K (1 sale), last Oct 2, 2026
- Yvonne Greenstreet, CEO: sold $20.4M (59 sales), last Sep 19, 2026
- Cory A Booker, Senator: sold $8K (1 sale), last Aug 11, 2026
- David E I Pyott, Director: sold $1.1M (5 sales), last Jun 1, 2026
- Benjamin Cravatt, Director: other filings, last Jun 1, 2026
- Charles Elliott Sigal, Director: other filings, last May 20, 2026
- Colleen F Reitan, Director: other filings, last May 20, 2026
- Peter N Kellogg, Director: other filings, last May 20, 2026
- Olivier Brandicourt, Director: other filings, last May 20, 2026
- Stuart A Arbuckle, Director: other filings, last May 20, 2026
- Dennis A Ausiello, Director: other filings, last May 20, 2026
- Margaret A Hamburg, Director: other filings, last May 20, 2026
- Amy W Schulman, Director: other filings, last May 20, 2026
- Melissa McLaughlin, Officer: sold $1.3M (14 sales), last Apr 6, 2026
- Kevin Joseph Fitzgerald, C-suite exec: sold $9.6M (64 sales), last Mar 5, 2026
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