Alnylam Pharmaceuticals, Inc. (ALNY) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for ALNY. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 768 institutions reported holding ALNY, with 132.6 million shares worth $39.9 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Capital Group | 20,902,019 | $6.3B | INCREASED |
| FMR | 15,023,962 | $4.5B | INCREASED |
| Vanguard | 13,831,694 | $4.2B | INCREASED |
| BlackRock | 10,907,675 | $3.3B | INCREASED |
| T. Rowe Price | 6,791,374 | $2.0B | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Bryan Supran (EVP, CLO and Secretary) | SELL | 1,758 | $399K | 2026-10-02 |
| Yvonne Greenstreet (Chief Executive Officer) | AWARD | 107 | 2026-09-19 |
Recent Congressional Trades
| Member | Type | Amount | Date |
|---|---|---|---|
| Cory A. Booker (Democrat) | SALE | $1,001 - $15,000 | 2026-08-11 |
Full institutional holdings, insider history, and congressional trades for Alnylam Pharmaceuticals, Inc. on SentiSense.