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, Q3 2025
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 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
- 823
- +178 vs. Q2 2025
- Shares held
- 129.9M
- −193.8K (−0.1%) vs. Q2 2025
- Total value
- $59.2B
- +$16.8B (+39.6%) vs. Q2 2025
- New holders
- 225
- 283 more added
- Sold out
- 47
- 223 more reduced
8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Whitebox Advisors LLC | 2,100 | $957.6K | 0.02% | +2,100 | New |
| United Capital Financial Advisers, LLC | 2,145 | $978.1K | 0.01% | +570+36.2% | Added |
| Ethic Inc. | 2,184 | $996.0K | 0.02% | +8+0.4% | Added |
| UniSuper Management Pty Ltd | 2,200 | $1.00M | 0.01% | 00.0% | Unchanged |
| Anchor Investment Management, LLC | 2,249 | $1.03M | 0.08% | +2,049+1,024.5% | Added |
| Persistent Asset Partners Ltd | 2,252 | $1.03M | 0.74% | +2,252 | New |
| Nixon Peabody Trust Co | 2,347 | $1.07M | 0.08% | +10+0.4% | Added |
| QRG Capital Management, Inc. | 2,435 | $1.11M | 0.01% | +299+14.0% | Added |
| Principal Securities, Inc. | 2,438 | $1.11M | 0.02% | +724+42.2% | Added |
| Horizon Kinetics Asset Management LLC | 2,480 | $1.13M | 0.01% | −279−10.1% | Reduced |
| Vestcor Inc | 2,527 | $1.15M | 0.03% | −309−10.9% | Reduced |
| NEOS Investment Management LLC | 2,563 | $1.17M | 0.01% | −2,738−51.7% | Reduced |
| Tema ETFs LLC | 2,563 | $1.17M | 0.10% | −2,738−51.7% | Reduced |
| Kovitz Investment Group Partners, LLC | 2,607 | $1.19M | 0.00% | +257+10.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 2,614 | $1.19M | 0.03% | +2,614 | New |
| Everhart Financial Group, Inc. | 2,630 | $1.20M | 0.12% | +437+19.9% | Added |
| Central Pacific Bank - Trust Division | 2,635 | $1.20M | 0.15% | −383−12.7% | Reduced |
| Regal Investment Advisors LLC | 2,702 | $1.23M | 0.08% | −204−7.0% | Reduced |
| FORA Capital, LLC | 2,719 | $1.24M | 0.22% | +2,719 | New |
| Western Financial Corp | 2,724 | $1.24M | 0.54% | +2,724 | New |
| Park Avenue Securities LLC | 2,731 | $1.25M | 0.01% | +646+31.0% | Added |
| Greenleaf Trust | 2,735 | $1.25M | 0.01% | +5+0.2% | Added |
| Shepherd Financial Partners LLC | 2,736 | $1.25M | 0.12% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 2,743 | $1.25M | 0.01% | +1,213+79.3% | Added |
| Callan Family Office, LLC | 2,756 | $1.26M | 0.04% | −175−6.0% | Reduced |
| RSM US Wealth Management LLC | 2,764 | $1.26M | 0.02% | −1,639−37.2% | Reduced |
| Shell Asset Management Co | 2,779 | $1.27M | 0.13% | −4,478−61.7% | Reduced |
| Vontobel Holding Ltd. | 2,782 | $1.27M | 0.00% | −135−4.6% | Reduced |
| GF Fund Management Co. Ltd. | 2,797 | $1.28M | 0.02% | −505−15.3% | Reduced |
| Fig Financial Advisory Services Inc | 2,812 | $1.28M | 0.80% | +2,812 | New |
| Sterling Capital Management LLC | 2,827 | $1.29M | 0.02% | −9,262−76.6% | Reduced |
| Generali Investments CEE, investicni spolecnost, a.s. | 2,900 | $1.32M | 0.10% | 00.0% | Unchanged |
| Everence Capital Management Inc | 2,970 | $1.35M | 0.08% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 3,015 | $1.37M | 0.05% | −135−4.3% | Reduced |
| Grandfield & Dodd, LLC | 3,120 | $1.42M | 0.08% | +68+2.2% | Added |
| Orion Capital Management LLC | 3,140 | $1.43M | 0.50% | −100−3.1% | Reduced |
| Sanders Morris Harris LLC | 3,150 | $1.44M | 0.19% | +3,150 | New |
| Sumitomo Life Insurance Co | 3,167 | $1.44M | 0.04% | +1,049+49.5% | Added |
| Cambridge Investment Research Advisors, Inc. | 3,180 | $1.45M | 0.00% | +1,796+129.8% | Added |
| Kennedy Capital Management, Inc. | 3,220 | $1.47M | 0.03% | +1,552+93.0% | Added |
| Generali Asset Management SPA SGR | 3,234 | $1.47M | 0.03% | +3,184+6,368.0% | Added |
| Hall Laurie J Trustee | 3,250 | $1.48M | 0.48% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 3,273 | $1.49M | 0.92% | −50−1.5% | Reduced |
| Kentucky Retirement Systems Insurance Trust Fund | 3,285 | $1.50M | 0.10% | −218−6.2% | Reduced |
| Spectrum Planning & Advisory Services Inc. | 3,350 | $1.53M | 0.86% | −9−0.3% | Reduced |
| Oxford Asset Management LLP | 3,350 | $1.53M | 0.50% | +882+35.7% | Added |
| Summit Trail Advisors, LLC | 3,435 | $1.57M | 0.02% | +626+22.3% | Added |
| Bamco Inc | 3,500 | $1.60M | 0.00% | +3,500 | New |
| Lighthouse Investment Partners, LLC | 3,500 | $1.60M | 0.06% | +3,500 | New |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 3,500 | $1.60M | 0.00% | +3,500 | New |
| Inceptionr LLC | 3,519 | $1.60M | 0.39% | −1,057−23.1% | Reduced |
| Profund Advisors LLC | 3,536 | $1.61M | 0.05% | −2,882−44.9% | Reduced |
| Krilogy Financial LLC | 3,822 | $1.66M | 0.06% | +3,822 | New |
| Brandywine Managers, LLC | 3,718 | $1.70M | 1.63% | −500−11.9% | Reduced |
| Scientech Research LLC | 3,872 | $1.77M | 0.62% | +3,872 | New |
| Values First Advisors, Inc. | 3,882 | $1.77M | 0.95% | −65−1.6% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 3,913 | $1.78M | 0.02% | +680+21.0% | Added |
| Atlantic Trust, LLC | 3,994 | $1.82M | 0.31% | −286−6.7% | Reduced |
| Janney Montgomery Scott LLC | 4,055 | $1.85M | 0.00% | +4,055 | New |
| Knollwood Investment Advisory, LLC | 4,059 | $1.85M | 0.17% | −1,296−24.2% | Reduced |
| Keybank National Association | 4,060 | $1.85M | 0.01% | +1,303+47.3% | Added |
| Polar Asset Management Partners Inc. | 4,104 | $1.87M | 0.04% | −5,496−57.3% | Reduced |
| Moore Capital Management, LP | 4,104 | $1.87M | 0.04% | +4,104 | New |
| Shaolin Capital Management LLC | 4,104 | $1.87M | 0.09% | +4,104 | New |
| Sona Asset Management (US) LLC | 4,104 | $1.87M | 0.07% | +4,104 | New |
| AG2R la Mondiale Gestion D'Actifs | 5,825 | $1.90M | 0.10% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 4,232 | $1.93M | 0.02% | +2,342+123.9% | Added |
| Howland Capital Management LLC | 4,243 | $1.93M | 0.07% | +243+6.1% | Added |
| Empowered Funds, LLC | 4,285 | $1.95M | 0.02% | +1,432+50.2% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 4,295 | $1.96M | 0.03% | +4,295 | New |
| Oppenheimer Asset Management Inc. | 4,300 | $1.96M | 0.02% | +2,972+223.8% | Added |
| Sequoia Financial Advisors, LLC | 4,306 | $1.96M | 0.01% | +389+9.9% | Added |
| Metis Global Partners, LLC | 4,311 | $1.97M | 0.05% | −326−7.0% | Reduced |
| Rockefeller Capital Management L.P. | 4,380 | $2.00M | 0.00% | +4,380 | New |
| Pallas Capital Advisors LLC | 4,425 | $2.02M | 0.07% | +1,855+72.2% | Added |
| Tokio Marine Asset Management Co Ltd | 4,444 | $2.03M | 0.07% | +4,444 | New |
| Omers Administration Corp | 4,517 | $2.06M | 0.01% | 00.0% | Unchanged |
| Advisors Asset Management, Inc. | 4,522 | $2.06M | 0.03% | −23−0.5% | Reduced |
| Commerce Bank | 4,531 | $2.07M | 0.01% | −5−0.1% | Reduced |
| Aigen Investment Management, LP | 4,538 | $2.07M | 0.32% | +4,538 | New |
| Highland Capital Management, LLC | 4,569 | $2.08M | 0.10% | +4,569 | New |
| Allstate Corp | 4,571 | $2.08M | 0.05% | +4,571 | New |
| Azzad Asset Management Inc | 4,620 | $2.11M | 0.21% | +1,969+74.3% | Added |
| Donoghue Forlines LLC | 4,627 | $2.11M | 0.65% | +4,627 | New |
| ProShare Advisors LLC | 4,631 | $2.11M | 0.00% | +390+9.2% | Added |
| Integrated Wealth Concepts LLC | 4,636 | $2.11M | 0.02% | +1,191+34.6% | Added |
| CIBC Bancorp USA Inc. | 4,675 | $2.13M | 0.01% | +4,675 | New |
| Banque Cantonale Vaudoise | 4,860 | $2.22M | 0.08% | −883−15.4% | Reduced |
| Plato Investment Management Ltd | 4,906 | $2.22M | 0.15% | +793+19.3% | Added |
| Burney Co | 4,883 | $2.23M | 0.07% | −259−5.0% | Reduced |
| Brighton Jones LLC | 4,941 | $2.25M | 0.05% | +3,909+378.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 5,005 | $2.28M | 0.04% | 00.0% | Unchanged |
| Buckingham Strategic Partners | 5,127 | $2.28M | 0.03% | +4,317+533.0% | Added |
| Gateway Investment Advisers LLC | 5,141 | $2.34M | 0.02% | −748−12.7% | Reduced |
| Atria Investments LLC | 5,194 | $2.37M | 0.03% | +918+21.5% | Added |
| Vident Advisory, LLC | 5,237 | $2.39M | 0.02% | +1,312+33.4% | Added |
| West Michigan Advisors, LLC | 5,396 | $2.46M | 0.59% | +5,396 | New |
| Brinker Capital Investments, LLC | 5,398 | $2.46M | 0.02% | +1,089+25.3% | Added |
| Principal Financial Group Inc | 5,420 | $2.47M | 0.00% | −45,114−89.3% | Reduced |
| Mirabella Financial Services LLP | 5,447 | $2.48M | 0.22% | +2,477+83.4% | Added |