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 2025
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 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
- 625
- +39 vs. Q4 2024
- Shares held
- 129.4M
- +2.10M (+1.7%) vs. Q4 2024
- Total value
- $34.8B
- +$4.88B (+16.3%) vs. Q4 2024
- New holders
- 106
- 235 more added
- Sold out
- 67
- 205 more reduced
8 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 2025
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Privium Fund Management B.V. | 5,716 | $1.54M | 0.40% | +5,716 | New |
| Shell Asset Management Co | 5,655 | $1.53M | 0.07% | −337−5.6% | Reduced |
| Metis Global Partners, LLC | 5,566 | $1.50M | 0.04% | +839+17.7% | Added |
| CIBC Asset Management Inc | 5,422 | $1.46M | 0.00% | +288+5.6% | Added |
| Prelude Capital Management, LLC | 5,408 | $1.46M | 0.15% | +595+12.4% | Added |
| Knollwood Investment Advisory, LLC | 5,355 | $1.45M | 0.16% | 00.0% | Unchanged |
| BI Asset Management Fondsmaeglerselskab A/S | 5,342 | $1.44M | 0.02% | −6,413−54.6% | Reduced |
| Merit Financial Group, LLC | 5,314 | $1.43M | 0.02% | +2,819+113.0% | Added |
| Sectoral Asset Management Inc | 5,205 | $1.41M | 1.09% | −3,095−37.3% | Reduced |
| Dark Forest Capital Management LP | 5,153 | $1.39M | 0.06% | +5,153 | New |
| Westpac Banking Corp | 5,073 | $1.37M | 0.10% | −5,487−52.0% | Reduced |
| Plato Investment Management Ltd | 4,659 | $1.27M | 0.11% | −888−16.0% | Reduced |
| Allstate Corp | 4,701 | $1.27M | 0.04% | +903+23.8% | Added |
| US Bancorp | 4,590 | $1.24M | 0.00% | −192−4.0% | Reduced |
| Commerce Bank | 4,557 | $1.23M | 0.01% | +55+1.2% | Added |
| Omers Administration Corp | 4,517 | $1.22M | 0.01% | −735−14.0% | Reduced |
| Bank of Nova Scotia | 4,506 | $1.22M | 0.00% | −6−0.1% | Reduced |
| Brandywine Managers, LLC | 4,348 | $1.17M | 1.41% | 00.0% | Unchanged |
| Citadel Advisors LLC | 4,236 | $1.14M | 0.00% | −61,157−93.5% | Reduced |
| Colony Group, LLC | 4,218 | $1.14M | 0.00% | −209−4.7% | Reduced |
| AustralianSuper Pty Ltd | 4,218 | $1.14M | 0.01% | 00.0% | Unchanged |
| Atria Investments LLC | 4,204 | $1.14M | 0.01% | +893+27.0% | Added |
| RSM US Wealth Management LLC | 4,182 | $1.13M | 0.02% | −566−11.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 4,055 | $1.09M | 0.00% | +4,055 | New |
| Howland Capital Management LLC | 4,000 | $1.08M | 0.05% | 00.0% | Unchanged |
| J.P. Marvel Investment Advisors, LLC | 4,000 | $1.08M | 0.19% | 00.0% | Unchanged |
| Morgens Waterfall Vintiadis & Co Inc | 4,000 | $1.08M | 1.22% | +4,000 | New |
| Atlantic Trust, LLC | 3,992 | $1.08M | 0.24% | +11+0.3% | Added |
| Gilbert & Cook, Inc. | 3,904 | $1.05M | 0.15% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 3,857 | $1.04M | 0.01% | +113+3.0% | Added |
| Orion Portfolio Solutions, LLC | 3,857 | $1.04M | 0.01% | +113+3.0% | Added |
| O'Shaughnessy Asset Management, LLC | 3,803 | $1.03M | 0.01% | +360+10.5% | Added |
| Point72 Hong Kong Ltd | 3,795 | $1.02M | 0.07% | +3,795 | New |
| Kentucky Retirement Systems Insurance Trust Fund | 3,746 | $1.01M | 0.07% | +3,746 | New |
| Banque Cantonale Vaudoise | 3,728 | $1.01M | 0.04% | +3,728 | New |
| Y-Intercept (Hong Kong) Ltd | 3,720 | $1.00M | 0.07% | −796−17.6% | Reduced |
| Perpetual Ltd | 3,718 | $1.00M | 0.01% | −5,213−58.4% | Reduced |
| Exchange Traded Concepts, LLC | 3,715 | $1.00M | 0.02% | −118−3.1% | Reduced |
| Truist Financial Corp | 3,624 | $978.6K | 0.00% | −774−17.6% | Reduced |
| Rakuten Investment Management, Inc. | 3,559 | $955.4K | 0.00% | +3,559 | New |
| Sequoia Financial Advisors, LLC | 3,395 | $916.8K | 0.01% | +99+3.0% | Added |
| Tobam | 3,366 | $909.0K | 0.39% | −8,418−71.4% | Reduced |
| Walleye Trading LLC | 3,360 | $907.3K | 0.03% | +3,360 | New |
| Spectrum Planning & Advisory Services Inc. | 3,359 | $907.0K | 0.75% | 00.0% | Unchanged |
| Orion Capital Management LLC | 3,340 | $901.9K | 0.38% | 00.0% | Unchanged |
| Sanders Morris Harris LLC | 3,500 | $895.2K | 0.14% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 3,302 | $891.6K | 0.02% | +594+21.9% | Added |
| Sanctuary Advisors, LLC | 3,290 | $888.4K | 0.01% | −1,625−33.1% | Reduced |
| Credit Agricole S A | 3,287 | $887.6K | 0.00% | −706−17.7% | Reduced |
| Hall Laurie J Trustee | 3,250 | $877.6K | 0.31% | 00.0% | Unchanged |
| B. Metzler seel. Sohn & Co. AG | 3,233 | $873.0K | 0.01% | −46−1.4% | Reduced |
| Mercer Global Advisors Inc | 3,210 | $866.7K | 0.00% | +610+23.5% | Added |
| Summit Global Investments | 3,145 | $849.0K | 0.06% | +3,145 | New |
| Schonfeld Strategic Advisors LLC | 3,082 | $832.2K | 0.01% | −123,918−97.6% | Reduced |
| Persistent Asset Partners Ltd | 3,034 | $819.2K | 0.72% | +3,034 | New |
| Grandfield & Dodd, LLC | 3,032 | $818.7K | 0.05% | +659+27.8% | Added |
| Everence Capital Management Inc | 2,970 | $802.0K | 0.05% | +450+17.9% | Added |
| Regal Investment Advisors LLC | 2,906 | $784.7K | 0.06% | −252−8.0% | Reduced |
| Generali Investments CEE, investicni spolecnost, a.s. | 2,900 | $783.1K | 0.07% | 00.0% | Unchanged |
| Horizon Kinetics Asset Management LLC | 2,880 | $777.7K | 0.01% | 00.0% | Unchanged |
| Keybank National Association | 2,794 | $754.4K | 0.00% | −68−2.4% | Reduced |
| Greenleaf Trust | 2,750 | $742.6K | 0.01% | +28+1.0% | Added |
| Integrated Wealth Concepts LLC | 2,739 | $739.6K | 0.01% | +227+9.0% | Added |
| Shepherd Financial Partners LLC | 2,736 | $738.8K | 0.09% | 00.0% | Unchanged |
| Bannerman Wealth Management Group, LLC | 2,729 | $736.9K | 0.60% | +1,338+96.2% | Added |
| Steel Peak Wealth Management LLC | 2,727 | $736.2K | 0.03% | −753−21.6% | Reduced |
| Buckingham Strategic Partners | 2,724 | $735.5K | 0.01% | +1,862+216.0% | Added |
| Vident Advisory, LLC | 2,667 | $720.1K | 0.01% | +1,340+101.0% | Added |
| Central Pacific Bank - Trust Division | 2,653 | $716.4K | 0.10% | +1,648+164.0% | Added |
| UniSuper Management Pty Ltd | 2,500 | $675.0K | 0.01% | 00.0% | Unchanged |
| Vestcor Inc | 2,461 | $665.0K | 0.02% | +6+0.2% | Added |
| Wolverine Trading, LLC | 2,438 | $654.5K | 0.02% | −4,885−66.7% | Reduced |
| Walleye Capital LLC | 2,370 | $639.9K | 0.01% | −17,746−88.2% | Reduced |
| EntryPoint Capital, LLC | 2,364 | $638.3K | 0.29% | −178−7.0% | Reduced |
| Kovitz Investment Group Partners, LLC | 2,349 | $634.2K | 0.00% | −292−11.1% | Reduced |
| PEAK6 LLC | 2,295 | $619.7K | 0.02% | −8,407−78.6% | Reduced |
| Nixon Peabody Trust Co | 2,277 | $614.8K | 0.05% | −16−0.7% | Reduced |
| Aster Capital Management (DIFC) Ltd | 2,451 | $604.8K | 0.11% | +2,451 | New |
| Ci Investments Inc. | 2,221 | $600.0K | 0.00% | −1,263−36.3% | Reduced |
| New York Life Investment Management LLC | 2,214 | $597.8K | 0.01% | −170−7.1% | Reduced |
| Accurate Wealth Management, LLC | 2,483 | $590.4K | 0.11% | +2,483 | New |
| Corebridge Financial, Inc. | 2,128 | $574.6K | 0.00% | −81−3.7% | Reduced |
| Monograph Wealth Advisors, LLC | 2,126 | $574.1K | 0.08% | −12−0.6% | Reduced |
| GraniteShares Advisors LLC | 2,110 | $569.7K | 0.36% | −155−6.8% | Reduced |
| Sava Infond d.o.o. | 2,080 | $561.6K | 0.11% | +350+20.2% | Added |
| Prudential PLC | 2,047 | $552.7K | 0.00% | −2,233−52.2% | Reduced |
| Archford Capital Strategies, LLC | 2,019 | $545.2K | 0.08% | +2,019 | New |
| Security National Bank of So Dak | 2,000 | $540.0K | 0.31% | 00.0% | Unchanged |
| Kornitzer Capital Management Inc | 2,000 | $540.0K | 0.01% | +2,000 | New |
| Meiji Yasuda Asset Management Co Ltd. | 1,986 | $536.3K | 0.02% | 00.0% | Unchanged |
| QRG Capital Management, Inc. | 1,949 | $526.3K | 0.01% | +964+97.9% | Added |
| Ethic Inc. | 2,043 | $522.6K | 0.01% | −2,843−58.2% | Reduced |
| Graham Capital Management, L.P. | 1,910 | $515.7K | 0.02% | −440−18.7% | Reduced |
| Capital Group Private Client Services, Inc. | 1,856 | $501.2K | 0.00% | −39,669−95.5% | Reduced |
| Summit Trail Advisors, LLC | 1,803 | $486.8K | 0.02% | +518+40.3% | Added |
| Souders Financial Advisors | 1,793 | $484.1K | 0.07% | −947−34.6% | Reduced |
| Everhart Financial Group, Inc. | 1,787 | $482.5K | 0.07% | +191+12.0% | Added |
| S-Bank Fund Management Ltd | 1,760 | $475.2K | 0.09% | +1,760 | New |
| Signaturefd, LLC | 1,755 | $473.9K | 0.01% | +115+7.0% | Added |
| Oppenheimer & Co Inc | 1,716 | $463.4K | 0.01% | 00.0% | Unchanged |