🕵️ Alnylam Pharmaceuticals, Inc. ($ALNY)
SEC insider & ownership activity, last 12 months · CIK 1178670 · every row links its SEC filing
Over the last 12 months insiders sold $53.7M with no open-market buying against it. Greenstreet Yvonne sold $24.5M (Oct–Mar). Capital Research Global Investors added 5.4% → 7.1%. No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $53.7M (343 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Greenstreet Yvonne | 0 | – | 72 | $24.5M | Mar 4, 2026 |
| Fitzgerald Kevin Joseph | 0 | – | 78 | $10.7M | Mar 5, 2026 |
| Garg Pushkal | 0 | – | 70 | $8.1M | Mar 5, 2026 |
| Jeffrey V. Poulton | 0 | – | 52 | $5.0M | Mar 4, 2026 |
| Tanguler Tolga | 0 | – | 52 | $3.1M | Mar 4, 2026 |
| McLaughlin Melissa | 0 | – | 14 | $1.3M | Apr 6, 2026 |
| Pyott David E. I. | 0 | – | 5 | $1.1M | Jun 1, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 11.0% | 13G | May 6, 2026 | filing ↗ | |
| Abigail P. Johnson | 11.0% | 13G | May 6, 2026 | filing ↗ | |
| Capital World Investors | 8.2% | 13G | May 14, 2026 | filing ↗ | |
| Capital Research Global Investors | 7.1% | 13G | May 14, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.3% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Pyott David E. I. | $1.1M | Jun 1, 2026 | filing ↗ |
| McLaughlin Melissa | $732K | Apr 6, 2026 | filing ↗ |
| Fitzgerald Kevin Joseph | $213K | Mar 5, 2026 | filing ↗ |
| Garg Pushkal | $778K | Mar 5, 2026 | filing ↗ |
| Fitzgerald Kevin Joseph | $531K | Mar 3, 2026 | filing ↗ |
| Garg Pushkal | $570K | Mar 3, 2026 | filing ↗ |
| Garg Pushkal | $1.5M | Feb 27, 2026 | filing ↗ |
| Fitzgerald Kevin Joseph | $678K | Feb 17, 2026 | filing ↗ |
| Fitzgerald Kevin Joseph | $845K | Jan 13, 2026 | filing ↗ |
| Fitzgerald Kevin Joseph | $5.4M | Nov 17, 2025 | filing ↗ |
| Greenstreet Yvonne | $11.6M | Nov 12, 2025 | filing ↗ |
| Garg Pushkal | $1.4M | Oct 3, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 20, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 20, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 2, 2026 | filing ↗ |
| Earnings (2.02) | Feb 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 12, 2026 | filing ↗ |
| Earnings (2.02) | Jan 11, 2026 | filing ↗ |
| Other events (8.01) | Dec 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 10, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 2, 2025 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 30, 2025 | filing ↗ |
| New financial obligation (2.03) | Sep 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 30, 2025 | filing ↗ |