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, Q1 2026
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2026. 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
- 793
- −48 vs. Q4 2025
- Shares held
- 131.4M
- +14.7M (+12.6%) vs. Q4 2025
- Total value
- $43.4B
- −$2.95B (−6.4%) vs. Q4 2025
- New holders
- 106
- 323 more added
- Sold out
- 154
- 258 more reduced
11 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| WPG Advisers, LLC | 29 | $9.60K | 0.01% | −2−6.5% | Reduced |
| Whipplewood Advisors, LLC | 29 | $9.60K | 0.00% | +29 | New |
| Swiss Re Ltd | 30 | $9.93K | 0.06% | 00.0% | Unchanged |
| Godsey & Gibb Associates | 32 | $10.6K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 33 | $10.9K | 0.01% | 00.0% | Unchanged |
| Arlington Trust Co LLC | 33 | $10.9K | 0.00% | +33 | New |
| Eastern Bank | 35 | $11.6K | 0.00% | −70−66.7% | Reduced |
| SOA Wealth Advisors, LLC. | 36 | $11.9K | 0.00% | 00.0% | Unchanged |
| S&T Bank | 38 | $12.6K | 0.00% | +27+245.5% | Added |
| Bogart Wealth, LLC | 39 | $12.9K | 0.00% | +3+8.3% | Added |
| Catalyst Capital Advisors LLC | 39 | $12.9K | 0.00% | +39 | New |
| JFS Wealth Advisors, LLC | 40 | $13.2K | 0.00% | −5−11.1% | Reduced |
| Millstone Evans Group, LLC | 40 | $13.2K | 0.01% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 40 | $13.2K | 0.00% | 00.0% | Unchanged |
| Private Wealth Asset Management, LLC | 41 | $13.6K | 0.00% | −1−2.4% | Reduced |
| Grove Bank & Trust | 42 | $13.9K | 0.00% | +33+366.7% | Added |
| Community Financial Services Group, LLC | 45 | $14.8K | 0.00% | +45 | New |
| Quantbot Technologies LP | 45 | $14.9K | 0.00% | −305−87.1% | Reduced |
| Avion Wealth | 48 | $15.0K | 0.00% | +15+45.5% | Added |
| JPL Wealth Management, LLC | 48 | $15.9K | 0.00% | +48 | New |
| Peoples Financial Services Corp. | 50 | $16.5K | 0.01% | 00.0% | Unchanged |
| Piscataqua Savings Bank | 50 | $16.5K | 0.01% | 00.0% | Unchanged |
| Rachor Investment Advisory Services, LLC | 50 | $16.5K | 0.01% | −1−2.0% | Reduced |
| St. Johns Investment Management Company, LLC | 50 | $16.5K | 0.01% | 00.0% | Unchanged |
| Independence Bank of Kentucky | 50 | $16.5K | 0.00% | +47+1,566.7% | Added |
| BFSG, LLC | 50 | $16.5K | 0.00% | +50 | New |
| Kemnay Advisory Services Inc. | 53 | $17.5K | 0.00% | +1+1.9% | Added |
| Bell Investment Advisors, Inc | 53 | $17.5K | 0.00% | +17+47.2% | Added |
| Brown Brothers Harriman & Co | 55 | $18.2K | 0.00% | −125−69.4% | Reduced |
| Sound Income Strategies, LLC | 56 | $18.4K | 0.00% | −5−8.2% | Reduced |
| SBI Securities Co., Ltd. | 56 | $18.5K | 0.00% | −91−61.9% | Reduced |
| Private Trust Co NA | 56 | $18.5K | 0.00% | +28+100.0% | Added |
| Elequin Capital LP | 57 | $18.9K | 0.00% | −40−41.2% | Reduced |
| TD Private Client Wealth LLC | 59 | $19.5K | 0.00% | +56+1,866.7% | Added |
| Global Trust Asset Management, LLC | 60 | $19.9K | 0.01% | 00.0% | Unchanged |
| Truvestments Capital LLC | 60 | $19.9K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 63 | $20.8K | 0.01% | +1+1.6% | Added |
| MV Capital Management, Inc. | 64 | $21.2K | 0.00% | +1+1.6% | Added |
| Meeder Asset Management Inc | 66 | $21.8K | 0.00% | −88−57.1% | Reduced |
| Quent Capital, LLC | 67 | $22.2K | 0.00% | −27−28.7% | Reduced |
| Bayforest Capital Ltd | 71 | $23.5K | 0.03% | −341−82.8% | Reduced |
| TFC Financial Management | 72 | $23.8K | 0.00% | 00.0% | Unchanged |
| LRI Investments, LLC | 73 | $24.0K | 0.00% | −119−62.0% | Reduced |
| Salomon & Ludwin, LLC | 78 | $24.9K | 0.00% | +55+239.1% | Added |
| True Wealth Design, LLC | 76 | $25.1K | 0.01% | −79−51.0% | Reduced |
| RWM Asset Management, LLC | 77 | $25.5K | 0.00% | +77 | New |
| Root Financial Partners, LLC | 79 | $26.1K | 0.00% | +17+27.4% | Added |
| Manchester Capital Management LLC | 86 | $28.5K | 0.00% | +2+2.4% | Added |
| Whittier Trust Co | 90 | $29.7K | 0.00% | +21+30.4% | Added |
| Cornerstone Planning Group LLC | 100 | $30.1K | 0.00% | +5+5.3% | Added |
| CVA Family Office, LLC | 92 | $30.4K | 0.00% | +33+55.9% | Added |
| Westside Investment Management, Inc. | 96 | $30.6K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 100 | $33.1K | 0.01% | −345−77.5% | Reduced |
| Hartford Financial Management Inc. | 100 | $33.1K | 0.01% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 101 | $33.4K | 0.00% | +4+4.1% | Added |
| Colonial Trust Co | 103 | $34.2K | 0.00% | +4+4.0% | Added |
| First Horizon Corp | 113 | $37.4K | 0.00% | −50−30.7% | Reduced |
| SHP Wealth Management | 114 | $37.6K | 0.00% | +5+4.6% | Added |
| Clearstead Advisors, LLC | 116 | $38.4K | 0.00% | −31−21.1% | Reduced |
| Huntington National Bank | 119 | $39.4K | 0.00% | +17+16.7% | Added |
| Bessemer Group Inc | 122 | $40.0K | 0.00% | −105−46.3% | Reduced |
| Keating Financial Advisory Services, Inc. | 127 | $42.0K | 0.01% | +23+22.1% | Added |
| Owl Creek Wealth Partners LLC | 130 | $43.0K | 0.02% | +130 | New |
| Hilltop National Bank | 131 | $43.3K | 0.01% | +51+63.7% | Added |
| Stephenson National Bank & Trust | 135 | $44.7K | 0.01% | 00.0% | Unchanged |
| Rossby Financial, LCC | 143 | $47.0K | 0.01% | +19+15.3% | Added |
| Itau Unibanco Holding S.A. | 146 | $48.3K | 0.00% | +5+3.5% | Added |
| Timothy G. Youngquist 2020 Irrevocable Trust | 147 | $48.6K | 0.02% | +147 | New |
| Basecamp Wealth Advisors LLC | 150 | $49.6K | 0.01% | +27+22.0% | Added |
| Harbour Investments, Inc. | 151 | $50.1K | 0.00% | +35+30.2% | Added |
| Rothschild Investment LLC | 159 | $52.6K | 0.00% | −201−55.8% | Reduced |
| Fideuram Asset Management (Ireland) dac | 165 | $52.8K | 0.01% | +43+35.2% | Added |
| Brown, Lisle/Cummings, Inc. | 162 | $53.6K | 0.01% | +30+22.7% | Added |
| Capital Advisors, Ltd. LLC | 163 | $54.0K | 0.01% | +1+0.6% | Added |
| Evelyn Partners Investment Management LLP | 175 | $57.9K | 0.00% | 00.0% | Unchanged |
| Opal Wealth Advisors, LLC | 183 | $60.5K | 0.01% | +183 | New |
| Umb Bank N A | 191 | $63.2K | 0.00% | +177+1,264.3% | Added |
| Golden State Equity Partners | 194 | $64.2K | 0.00% | +194 | New |
| Massmutual Trust Co FSB | 198 | $65.5K | 0.00% | +4+2.1% | Added |
| Spire Wealth Management | 200 | $66.2K | 0.00% | −2−1.0% | Reduced |
| Beacon Investment Advisory Services, Inc. | 210 | $69.5K | 0.00% | +210 | New |
| Covestor Ltd | 211 | $70.0K | 0.05% | +148+234.9% | Added |
| Whittier Trust Co of Nevada Inc | 219 | $72.3K | 0.00% | +137+167.1% | Added |
| Prestige Wealth Management Group LLC | 226 | $74.8K | 0.01% | +53+30.6% | Added |
| Perkins Coie Trust Co | 234 | $77.4K | 0.01% | −266−53.2% | Reduced |
| Atlantic Union Bankshares Corp | 246 | $81.4K | 0.00% | +15+6.5% | Added |
| Leonteq Securities AG | 248 | $82.1K | 0.00% | +143+136.2% | Added |
| Ronald Blue Trust, Inc. | 266 | $88.0K | 0.00% | −18−6.3% | Reduced |
| Park Place Capital Corp | 290 | $96.0K | 0.02% | +164+130.2% | Added |
| Larson Financial Group LLC | 325 | $107.5K | 0.00% | +84+34.9% | Added |
| Bokf, NA | 342 | $113.2K | 0.00% | +342 | New |
| Avanza Fonder AB | 399 | $132.0K | 0.00% | +399 | New |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 468 | $154.8K | 0.05% | −62−11.7% | Reduced |
| Wealth Science Advisors LLC | 396 | $157.5K | 0.09% | +396 | New |
| IFP Advisors, Inc | 482 | $159.5K | 0.00% | −182−27.4% | Reduced |
| Align Financial, LLC | 500 | $165.4K | 0.09% | −198,325−99.7% | Reduced |
| Versant Capital Management, Inc | 502 | $166.1K | 0.02% | +86+20.7% | Added |
| Pinnacle Wealth Planning Services, Inc. | 506 | $167.3K | 0.02% | +457+932.7% | Added |
| Fortitude Family Office, LLC | 522 | $172.7K | 0.04% | +5+1.0% | Added |
| E Fund Management (Hong Kong) Co., Ltd. | 531 | $175.7K | 0.08% | +142+36.5% | Added |