Alnylam Pharmaceuticals, Inc.
ALNY- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001178670
No open-market purchases or sales by Alnylam Pharmaceuticals, Inc. insiders were filed in the last 90 days; 794 institutions reported holding it in 13F filings for Q2 2026, worth $40.1B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 852
- +55 vs. Q3 2025
- Shares held
- 132.8M
- +3.06M (+2.4%) vs. Q3 2025
- Total value
- $52.7B
- −$6.43B (−10.9%) vs. Q3 2025
- New holders
- 172
- 290 more added
- Sold out
- 117
- 291 more reduced
26 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALNY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 794 | $40.1B |
| Q1 2026 | 793 | $43.4B |
| Q4 2025 | 852 | $52.7B |
| Q3 2025 | 823 | $59.2B |
| Q2 2025 | 653 | $43.1B |
| Q1 2025 | 625 | $34.8B |
| Q4 2024 | 594 | $30.1B |
| Q3 2024 | 569 | $34.1B |
| Q2 2024 | 525 | $29.1B |
| Q1 2024 | 499 | $17.2B |
| Q4 2023 | 501 | $22.4B |
| Q3 2023 | 454 | $20.9B |
| Q2 2023 | 477 | $22.5B |
| Q1 2023 | 478 | $24.0B |
| Q4 2022 | 489 | $28.4B |
| Q3 2022 | 497 | $26.7B |
| Q2 2022 | 424 | $16.6B |
| Q1 2022 | 443 | $18.6B |
| Q4 2021 | 435 | $19.0B |
| Q3 2021 | 407 | $21.1B |
| Q2 2021 | 401 | $19.0B |
| Q1 2021 | 391 | $15.4B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Proffitt & Goodson Inc | 23 | $9.15K | 0.00% | −1−4.2% | Reduced |
| TD Capital Management LLC | 23 | $9.15K | 0.00% | 00.0% | Unchanged |
| Estate Planners Group, LLC | 23 | $9.15K | 0.00% | +23 | New |
| Salomon & Ludwin, LLC | 23 | $9.15K | 0.00% | −37−61.7% | Reduced |
| UMA Financial Services, Inc. | 24 | $9.54K | 0.00% | −7−22.6% | Reduced |
| Private Trust Co NA | 28 | $11.1K | 0.00% | −547−95.1% | Reduced |
| Swiss Re Ltd | 30 | $11.9K | 0.00% | +30 | New |
| FWL Investment Management, LLC | 31 | $12.3K | 0.00% | 00.0% | Unchanged |
| WPG Advisers, LLC | 31 | $12.3K | 0.01% | 00.0% | Unchanged |
| Dogwood Wealth Management LLC | 31 | $12.3K | 0.01% | +11+55.0% | Added |
| Godsey & Gibb Associates | 32 | $12.7K | 0.00% | +4+14.3% | Added |
| Avion Wealth | 33 | $13.0K | 0.00% | −4−10.8% | Reduced |
| Sachetta, LLC | 33 | $13.1K | 0.01% | −40−54.8% | Reduced |
| SJS Investment Consulting Inc. | 35 | $13.9K | 0.00% | +33+1,650.0% | Added |
| SOA Wealth Advisors, LLC. | 36 | $14.3K | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 36 | $14.3K | 0.00% | +1+2.9% | Added |
| Bell Investment Advisors, Inc | 36 | $14.3K | 0.00% | 00.0% | Unchanged |
| Cape Investment Advisory, Inc. | 39 | $15.5K | 0.00% | −69−63.9% | Reduced |
| Millstone Evans Group, LLC | 40 | $15.9K | 0.01% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 40 | $15.9K | 0.01% | 00.0% | Unchanged |
| MidFirst Bank | 541 | $16.3K | 0.00% | +541 | New |
| Private Wealth Asset Management, LLC | 42 | $16.7K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 45 | $17.9K | 0.00% | +10+28.6% | Added |
| Pinnacle Wealth Planning Services, Inc. | 49 | $19.3K | 0.00% | +49 | New |
| Peoples Financial Services Corp. | 50 | $19.9K | 0.01% | 00.0% | Unchanged |
| Piscataqua Savings Bank | 50 | $19.9K | 0.01% | 00.0% | Unchanged |
| Generali Asset Management SPA SGR | 50 | $19.9K | 0.00% | −3,184−98.5% | Reduced |
| St. Johns Investment Management Company, LLC | 50 | $19.9K | 0.01% | 00.0% | Unchanged |
| Rachor Investment Advisory Services, LLC | 51 | $20.3K | 0.01% | +51 | New |
| Kemnay Advisory Services Inc. | 52 | $20.7K | 0.00% | +52 | New |
| Sound Income Strategies, LLC | 61 | $21.9K | 0.00% | +61 | New |
| CVA Family Office, LLC | 59 | $23.5K | 0.00% | −3−4.8% | Reduced |
| Global Trust Asset Management, LLC | 60 | $23.9K | 0.01% | 00.0% | Unchanged |
| Truvestments Capital LLC | 60 | $23.9K | 0.00% | +3+5.3% | Added |
| Root Financial Partners, LLC | 62 | $24.7K | 0.00% | +8+14.8% | Added |
| Private Wealth Management Group, LLC | 62 | $24.7K | 0.01% | 00.0% | Unchanged |
| Covestor Ltd | 63 | $25.0K | 0.01% | −209−76.8% | Reduced |
| MV Capital Management, Inc. | 63 | $25.1K | 0.00% | −1−1.6% | Reduced |
| HM Payson & Co | 68 | $27.0K | 0.00% | +68 | New |
| Whittier Trust Co | 69 | $28.0K | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 72 | $28.6K | 0.00% | −2−2.7% | Reduced |
| Golden State Wealth Management, LLC | 72 | $28.6K | 0.00% | +36+100.0% | Added |
| ORG Partners LLC | 73 | $29.0K | 0.01% | −7−8.8% | Reduced |
| Hilltop National Bank | 80 | $31.8K | 0.01% | −11−12.1% | Reduced |
| Cornerstone Planning Group LLC | 95 | $33.2K | 0.01% | −397−80.7% | Reduced |
| Whittier Trust Co of Nevada Inc | 82 | $33.3K | 0.00% | −33−28.7% | Reduced |
| Manchester Capital Management LLC | 84 | $33.4K | 0.00% | +72+600.0% | Added |
| Quent Capital, LLC | 94 | $37.4K | 0.00% | +9+10.6% | Added |
| Westside Investment Management, Inc. | 96 | $38.4K | 0.01% | 00.0% | Unchanged |
| Elequin Capital LP | 97 | $38.6K | 0.01% | +97 | New |
| Parkside Financial Bank & Trust | 97 | $38.6K | 0.00% | −82−45.8% | Reduced |
| Colonial Trust Co | 99 | $39.4K | 0.01% | +61+160.5% | Added |
| Hartford Financial Management Inc. | 100 | $39.8K | 0.01% | 00.0% | Unchanged |
| Huntington National Bank | 102 | $40.6K | 0.00% | +1+1.0% | Added |
| Keating Financial Advisory Services, Inc. | 104 | $41.4K | 0.01% | +104 | New |
| Leonteq Securities AG | 105 | $41.8K | 0.00% | +102+3,400.0% | Added |
| Eastern Bank | 105 | $41.8K | 0.00% | +105 | New |
| Titan Wealth (CI) Ltd | 105 | $41.8K | 0.02% | +105 | New |
| Activest Wealth Management | 108 | $42.9K | 0.01% | +107+10,700.0% | Added |
| SHP Wealth Management | 109 | $43.2K | 0.00% | +109 | New |
| Harbour Investments, Inc. | 116 | $46.1K | 0.00% | −11−8.7% | Reduced |
| Basecamp Wealth Advisors LLC | 123 | $48.8K | 0.01% | +123 | New |
| Rossby Financial, LCC | 124 | $49.3K | 0.02% | +12+10.7% | Added |
| Fideuram Asset Management (Ireland) dac | 122 | $49.8K | 0.00% | +122 | New |
| Park Place Capital Corp | 126 | $50.1K | 0.01% | 00.0% | Unchanged |
| Fifth Third Bancorp | 127 | $50.5K | 0.00% | +70+122.8% | Added |
| Brown, Lisle/Cummings, Inc. | 132 | $52.5K | 0.01% | 00.0% | Unchanged |
| Stephenson National Bank & Trust | 135 | $53.7K | 0.02% | −50−27.0% | Reduced |
| Itau Unibanco Holding S.A. | 141 | $56.1K | 0.00% | −27−16.1% | Reduced |
| Quarry LP | 144 | $57.3K | 0.01% | +123+585.7% | Added |
| Clearstead Advisors, LLC | 147 | $58.5K | 0.00% | −617−80.8% | Reduced |
| SBI Securities Co., Ltd. | 147 | $58.5K | 0.00% | +84+133.3% | Added |
| Zions Bancorporation, National Association | 147 | $58.5K | 0.00% | +138+1,533.3% | Added |
| CoreCap Advisors, LLC | 152 | $60.4K | 0.00% | −228−60.0% | Reduced |
| Meeder Asset Management Inc | 154 | $61.2K | 0.00% | +125+431.0% | Added |
| True Wealth Design, LLC | 155 | $61.5K | 0.02% | −73−32.0% | Reduced |
| Reflection Asset Management | 159 | $63.2K | 0.04% | +159 | New |
| Capital Advisors, Ltd. LLC | 162 | $64.0K | 0.01% | 00.0% | Unchanged |
| First Horizon Corp | 163 | $64.8K | 0.00% | +28+20.7% | Added |
| Prestige Wealth Management Group LLC | 173 | $68.8K | 0.01% | −11−6.0% | Reduced |
| Evelyn Partners Investment Management LLP | 175 | $69.6K | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 180 | $71.6K | 0.00% | +7+4.0% | Added |
| Rakuten Securities, Inc. | 189 | $75.2K | 0.02% | +185+4,625.0% | Added |
| LRI Investments, LLC | 192 | $76.2K | 0.01% | +2+1.1% | Added |
| Massmutual Trust Co FSB | 194 | $77.1K | 0.00% | −3−1.5% | Reduced |
| Concord Wealth Partners | 200 | $79.5K | 0.01% | 00.0% | Unchanged |
| Spire Wealth Management | 202 | $80.3K | 0.00% | −5−2.4% | Reduced |
| Clear Street Markets LLC | 202 | $80.3K | 0.01% | +202 | New |
| Bessemer Group Inc | 227 | $90.0K | 0.00% | +5+2.3% | Added |
| Atlantic Union Bankshares Corp | 231 | $91.9K | 0.00% | +40+20.9% | Added |
| Torren Management, LLC | 235 | $93.4K | 0.05% | +235 | New |
| Larson Financial Group LLC | 241 | $95.8K | 0.00% | −59−19.7% | Reduced |
| Greenline Wealth Management LLC | 242 | $96.1K | 0.10% | +242 | New |
| Munich Reinsurance Co Stock Corp in Munich | 275 | $109.2K | 0.00% | +275 | New |
| Ronald Blue Trust, Inc. | 284 | $112.9K | 0.00% | −65−18.6% | Reduced |
| Havemeyer Place LP | 298 | $118.5K | 0.02% | +298 | New |
| TD Waterhouse Canada Inc. | 330 | $131.2K | 0.00% | 00.0% | Unchanged |
| E Fund Management (Hong Kong) Co., Ltd. | 389 | $131.9K | 0.06% | +389 | New |
| Globeflex Capital L P | 335 | $133.2K | 0.02% | +335 | New |
| Quantbot Technologies LP | 350 | $139.2K | 0.00% | −825−70.2% | Reduced |