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 |
|---|---|---|---|---|---|
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 468 | $154.8K | 0.05% | −62−11.7% | Reduced |
| Avanza Fonder AB | 399 | $132.0K | 0.00% | +399 | New |
| Bokf, NA | 342 | $113.2K | 0.00% | +342 | New |
| Larson Financial Group LLC | 325 | $107.5K | 0.00% | +84+34.9% | Added |
| Park Place Capital Corp | 290 | $96.0K | 0.02% | +164+130.2% | Added |
| Ronald Blue Trust, Inc. | 266 | $88.0K | 0.00% | −18−6.3% | Reduced |
| Leonteq Securities AG | 248 | $82.1K | 0.00% | +143+136.2% | Added |
| Atlantic Union Bankshares Corp | 246 | $81.4K | 0.00% | +15+6.5% | Added |
| Perkins Coie Trust Co | 234 | $77.4K | 0.01% | −266−53.2% | Reduced |
| Prestige Wealth Management Group LLC | 226 | $74.8K | 0.01% | +53+30.6% | Added |
| Whittier Trust Co of Nevada Inc | 219 | $72.3K | 0.00% | +137+167.1% | Added |
| Covestor Ltd | 211 | $70.0K | 0.05% | +148+234.9% | Added |
| Beacon Investment Advisory Services, Inc. | 210 | $69.5K | 0.00% | +210 | New |
| Spire Wealth Management | 200 | $66.2K | 0.00% | −2−1.0% | Reduced |
| Massmutual Trust Co FSB | 198 | $65.5K | 0.00% | +4+2.1% | Added |
| Golden State Equity Partners | 194 | $64.2K | 0.00% | +194 | New |
| Umb Bank N A | 191 | $63.2K | 0.00% | +177+1,264.3% | Added |
| Opal Wealth Advisors, LLC | 183 | $60.5K | 0.01% | +183 | New |
| Evelyn Partners Investment Management LLP | 175 | $57.9K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 163 | $54.0K | 0.01% | +1+0.6% | Added |
| Brown, Lisle/Cummings, Inc. | 162 | $53.6K | 0.01% | +30+22.7% | Added |
| Fideuram Asset Management (Ireland) dac | 165 | $52.8K | 0.01% | +43+35.2% | Added |
| Rothschild Investment LLC | 159 | $52.6K | 0.00% | −201−55.8% | Reduced |
| Harbour Investments, Inc. | 151 | $50.1K | 0.00% | +35+30.2% | Added |
| Basecamp Wealth Advisors LLC | 150 | $49.6K | 0.01% | +27+22.0% | Added |
| Timothy G. Youngquist 2020 Irrevocable Trust | 147 | $48.6K | 0.02% | +147 | New |
| Itau Unibanco Holding S.A. | 146 | $48.3K | 0.00% | +5+3.5% | Added |
| Rossby Financial, LCC | 143 | $47.0K | 0.01% | +19+15.3% | Added |
| Stephenson National Bank & Trust | 135 | $44.7K | 0.01% | 00.0% | Unchanged |
| Hilltop National Bank | 131 | $43.3K | 0.01% | +51+63.7% | Added |
| Owl Creek Wealth Partners LLC | 130 | $43.0K | 0.02% | +130 | New |
| Keating Financial Advisory Services, Inc. | 127 | $42.0K | 0.01% | +23+22.1% | Added |
| Bessemer Group Inc | 122 | $40.0K | 0.00% | −105−46.3% | Reduced |
| Huntington National Bank | 119 | $39.4K | 0.00% | +17+16.7% | Added |
| Clearstead Advisors, LLC | 116 | $38.4K | 0.00% | −31−21.1% | Reduced |
| SHP Wealth Management | 114 | $37.6K | 0.00% | +5+4.6% | Added |
| First Horizon Corp | 113 | $37.4K | 0.00% | −50−30.7% | Reduced |
| Colonial Trust Co | 103 | $34.2K | 0.00% | +4+4.0% | Added |
| Parkside Financial Bank & Trust | 101 | $33.4K | 0.00% | +4+4.1% | Added |
| Essential Partners LLC | 100 | $33.1K | 0.01% | −345−77.5% | Reduced |
| Hartford Financial Management Inc. | 100 | $33.1K | 0.01% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 96 | $30.6K | 0.00% | 00.0% | Unchanged |
| CVA Family Office, LLC | 92 | $30.4K | 0.00% | +33+55.9% | Added |
| Cornerstone Planning Group LLC | 100 | $30.1K | 0.00% | +5+5.3% | Added |
| Whittier Trust Co | 90 | $29.7K | 0.00% | +21+30.4% | Added |
| Manchester Capital Management LLC | 86 | $28.5K | 0.00% | +2+2.4% | Added |
| Root Financial Partners, LLC | 79 | $26.1K | 0.00% | +17+27.4% | Added |
| RWM Asset Management, LLC | 77 | $25.5K | 0.00% | +77 | New |
| True Wealth Design, LLC | 76 | $25.1K | 0.01% | −79−51.0% | Reduced |
| Salomon & Ludwin, LLC | 78 | $24.9K | 0.00% | +55+239.1% | Added |
| LRI Investments, LLC | 73 | $24.0K | 0.00% | −119−62.0% | Reduced |
| TFC Financial Management | 72 | $23.8K | 0.00% | 00.0% | Unchanged |
| Bayforest Capital Ltd | 71 | $23.5K | 0.03% | −341−82.8% | Reduced |
| Quent Capital, LLC | 67 | $22.2K | 0.00% | −27−28.7% | Reduced |
| Meeder Asset Management Inc | 66 | $21.8K | 0.00% | −88−57.1% | Reduced |
| MV Capital Management, Inc. | 64 | $21.2K | 0.00% | +1+1.6% | Added |
| Private Wealth Management Group, LLC | 63 | $20.8K | 0.01% | +1+1.6% | Added |
| Truvestments Capital LLC | 60 | $19.9K | 0.00% | 00.0% | Unchanged |
| Global Trust Asset Management, LLC | 60 | $19.9K | 0.01% | 00.0% | Unchanged |
| TD Private Client Wealth LLC | 59 | $19.5K | 0.00% | +56+1,866.7% | Added |
| Elequin Capital LP | 57 | $18.9K | 0.00% | −40−41.2% | 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 |
| Sound Income Strategies, LLC | 56 | $18.4K | 0.00% | −5−8.2% | Reduced |
| Brown Brothers Harriman & Co | 55 | $18.2K | 0.00% | −125−69.4% | Reduced |
| Bell Investment Advisors, Inc | 53 | $17.5K | 0.00% | +17+47.2% | Added |
| Kemnay Advisory Services Inc. | 53 | $17.5K | 0.00% | +1+1.9% | Added |
| 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 |
| Peoples Financial Services Corp. | 50 | $16.5K | 0.01% | 00.0% | Unchanged |
| Piscataqua Savings Bank | 50 | $16.5K | 0.01% | 00.0% | Unchanged |
| JPL Wealth Management, LLC | 48 | $15.9K | 0.00% | +48 | New |
| Avion Wealth | 48 | $15.0K | 0.00% | +15+45.5% | Added |
| Quantbot Technologies LP | 45 | $14.9K | 0.00% | −305−87.1% | Reduced |
| Community Financial Services Group, LLC | 45 | $14.8K | 0.00% | +45 | New |
| Grove Bank & Trust | 42 | $13.9K | 0.00% | +33+366.7% | Added |
| Private Wealth Asset Management, LLC | 41 | $13.6K | 0.00% | −1−2.4% | Reduced |
| 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 |
| Bogart Wealth, LLC | 39 | $12.9K | 0.00% | +3+8.3% | Added |
| Catalyst Capital Advisors LLC | 39 | $12.9K | 0.00% | +39 | New |
| S&T Bank | 38 | $12.6K | 0.00% | +27+245.5% | Added |
| SOA Wealth Advisors, LLC. | 36 | $11.9K | 0.00% | 00.0% | Unchanged |
| Eastern Bank | 35 | $11.6K | 0.00% | −70−66.7% | Reduced |
| Sachetta, LLC | 33 | $10.9K | 0.01% | 00.0% | Unchanged |
| Arlington Trust Co LLC | 33 | $10.9K | 0.00% | +33 | New |
| Godsey & Gibb Associates | 32 | $10.6K | 0.00% | 00.0% | Unchanged |
| Swiss Re Ltd | 30 | $9.93K | 0.06% | 00.0% | Unchanged |
| WPG Advisers, LLC | 29 | $9.60K | 0.01% | −2−6.5% | Reduced |
| Whipplewood Advisors, LLC | 29 | $9.60K | 0.00% | +29 | New |
| Twin Peaks Wealth Advisors, LLC | 28 | $9.26K | 0.00% | +28 | New |
| Wilkerson Advisory Group LLC | 25 | $8.27K | 0.00% | +8+47.1% | Added |
| UMA Financial Services, Inc. | 24 | $7.94K | 0.00% | 00.0% | Unchanged |
| TD Capital Management LLC | 23 | $7.61K | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 21 | $6.95K | 0.00% | +6+40.0% | Added |
| United Financial Planning Group LLC | 21 | $6.95K | 0.00% | +17+425.0% | Added |
| Cromwell Holdings LLC | 20 | $6.62K | 0.00% | 00.0% | Unchanged |