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 |
|---|---|---|---|---|---|
| Asahi Life Asset Management Co., Ltd. | 1,043 | $475.6K | 0.26% | −237−18.5% | Reduced |
| Nichols & Pratt Advisers LLP | 1,043 | $475.6K | 0.03% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 1,077 | $481.9K | 0.03% | +483+81.3% | Added |
| EntryPoint Capital, LLC | 1,058 | $482.4K | 0.19% | −492−31.7% | Reduced |
| Wedmont Private Capital | 1,055 | $484.9K | 0.02% | −706−40.1% | Reduced |
| Capital Group Private Client Services, Inc. | 1,070 | $487.9K | 0.01% | 00.0% | Unchanged |
| Rothschild Investment LLC | 1,078 | $491.6K | 0.03% | +1,076+53,800.0% | Added |
| Vestmark Advisory Solutions, Inc. | 1,085 | $494.8K | 0.01% | −655−37.6% | Reduced |
| NorthRock Partners, LLC | 1,094 | $498.9K | 0.01% | +1,094 | New |
| Sivia Capital Partners, LLC | 1,096 | $499.8K | 0.14% | +1,096 | New |
| Coastal Bridge Advisors, LLC | 1,097 | $500.2K | 0.04% | +25+2.3% | Added |
| Aaron Wealth Advisors | 1,109 | $505.7K | 0.03% | +1,109 | New |
| Ground Swell Capital, LLC | 1,111 | $506.6K | 1.11% | +1,111 | New |
| EverSource Wealth Advisors, LLC | 1,130 | $515.3K | 0.02% | +693+158.6% | Added |
| TB Alternative Assets Ltd. | 1,133 | $516.6K | 0.08% | −126−10.0% | Reduced |
| Mathes Company, Inc. | 1,155 | $527.0K | 0.19% | 00.0% | Unchanged |
| Quantbot Technologies LP | 1,175 | $535.8K | 0.01% | +1,175 | New |
| Perigon Wealth Management, LLC | 1,183 | $539.2K | 0.01% | +1,183 | New |
| Hilltop Holdings Inc. | 1,189 | $542.2K | 0.03% | +273+29.8% | Added |
| Calamos Advisors LLC | 1,200 | $547.2K | 0.00% | +1,200 | New |
| Crossmark Global Holdings, Inc. | 1,224 | $558.1K | 0.01% | +180+17.2% | Added |
| Cigna Investments Inc | 1,230 | $561.0K | 0.08% | −15−1.2% | Reduced |
| HBK Investments L P | 1,231 | $561.3K | 0.01% | +1,231 | New |
| Capstone Investment Advisors, LLC | 1,231 | $561.3K | 0.00% | +1,231 | New |
| BlueCrest Capital Management Ltd | 1,231 | $561.3K | 0.03% | +1,231 | New |
| Semanteon Capital Management, LP | 1,232 | $561.8K | 0.70% | +1,232 | New |
| Vinva Investment Management Ltd | 1,258 | $562.9K | 0.01% | +1,258 | New |
| Essential Partners LLC | 1,236 | $563.6K | 0.19% | +1,174+1,893.5% | Added |
| DeepCurrents Investment Group LLC | 1,243 | $566.8K | 0.02% | +1,243 | New |
| Crowley Wealth Management, Inc. | 1,250 | $570.0K | 0.45% | 00.0% | Unchanged |
| Frank, Rimerman Advisors LLC | 1,251 | $570.5K | 0.04% | +24+2.0% | Added |
| Qsemble Capital Management, LP | 1,255 | $572.3K | 0.06% | −275−18.0% | Reduced |
| Wetherby Asset Management Inc | 1,266 | $577.3K | 0.02% | +40+3.3% | Added |
| Sagespring Wealth Partners, LLC | 1,287 | $587.0K | 0.01% | +371+40.5% | Added |
| Allworth Financial LP | 1,290 | $588.1K | 0.00% | +599+86.7% | Added |
| Quantedge Capital Pte Ltd | 1,300 | $592.8K | 0.32% | +1,300 | New |
| North Star Asset Management Inc | 1,305 | $595.1K | 0.02% | 00.0% | Unchanged |
| Convergence Investment Partners, LLC | 1,307 | $596.0K | 0.13% | −952−42.1% | Reduced |
| Abn Amro Investment Solutions | 1,310 | $597.4K | 0.01% | 00.0% | Unchanged |
| Envestnet Portfolio Solutions, Inc. | 1,327 | $605.1K | 0.00% | +163+14.0% | Added |
| Winslow Capital Management, LLC | 1,335 | $608.8K | 0.00% | −1,176,104−99.9% | Reduced |
| Cubist Systematic Strategies, LLC | 1,352 | $616.4K | 0.01% | +1,352 | New |
| Westpac Banking Corp | 1,355 | $617.9K | 0.04% | 00.0% | Unchanged |
| Banque Pictet & Cie SA | 1,385 | $631.6K | 0.01% | −6−0.4% | Reduced |
| J.Safra Asset Management Corp | 1,395 | $636.1K | 0.04% | +1,352+3,144.2% | Added |
| Norden Group LLC | 1,411 | $643.4K | 0.07% | +1,411 | New |
| Freestone Grove Partners LP | 1,412 | $643.9K | 0.00% | +1,412 | New |
| Lecap Asset Management Ltd | 1,418 | $646.6K | 0.22% | −567−28.6% | Reduced |
| Private Advisory Group LLC | 1,419 | $647.1K | 0.06% | +1,419 | New |
| Souders Financial Advisors | 1,423 | $648.9K | 0.08% | +64+4.7% | Added |
| Steward Partners Investment Advisory, LLC | 1,443 | $658.0K | 0.00% | +86+6.3% | Added |
| Sara-Bay Financial | 1,450 | $661.2K | 0.18% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 1,459 | $665.3K | 0.19% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 1,465 | $668.0K | 0.10% | +202+16.0% | Added |
| Qtron Investments LLC | 1,471 | $670.8K | 0.08% | +1,471 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 1,474 | $672.6K | 0.10% | +656+80.2% | Added |
| HB Wealth Management, LLC | 1,476 | $673.1K | 0.00% | +607+69.9% | Added |
| CTC Alternative Strategies, Ltd. | 1,496 | $682.2K | 1.14% | +1,496 | New |
| High Net Worth Advisory Group LLC | 1,500 | $684.0K | 0.16% | 00.0% | Unchanged |
| GWM Advisors LLC | 1,524 | $694.7K | 0.00% | +820+116.5% | Added |
| Tower Research Capital LLC (TRC) | 1,537 | $700.9K | 0.02% | +1,473+2,301.6% | Added |
| Fulton Bank, N.A. | 1,544 | $704.1K | 0.02% | +123+8.7% | Added |
| Orser Capital Management, LLC | 1,544 | $704.1K | 0.39% | +1,544 | New |
| Forum Financial Management, LP | 1,556 | $709.5K | 0.01% | 00.0% | Unchanged |
| Ossiam | 1,556 | $709.5K | 0.01% | +201+14.8% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 1,533 | $711.3K | 0.01% | 00.0% | Unchanged |
| Diversified Trust Co | 1,570 | $715.9K | 0.01% | +472+43.0% | Added |
| S-Bank Fund Management Ltd | 1,593 | $726.4K | 0.10% | −21−1.3% | Reduced |
| Walleye Trading LLC | 1,595 | $727.3K | 0.01% | +1,252+365.0% | Added |
| NorthCrest Asset Manangement, LLC | 1,605 | $737.5K | 0.02% | +1,605 | New |
| New York Life Investment Management LLC | 1,629 | $742.8K | 0.01% | −474−22.5% | Reduced |
| Steel Peak Wealth Management LLC | 1,635 | $745.4K | 0.03% | −1,173−41.8% | Reduced |
| GraniteShares Advisors LLC | 1,639 | $747.4K | 0.43% | −260−13.7% | Reduced |
| Sava Infond d.o.o. | 1,640 | $747.8K | 0.11% | −540−24.8% | Reduced |
| Coldstream Capital Management Inc | 1,640 | $747.8K | 0.01% | +38+2.4% | Added |
| Kestra Advisory Services, LLC | 1,645 | $750.1K | 0.00% | +561+51.8% | Added |
| iA Global Asset Management Inc. | 1,647 | $751.0K | 0.01% | +1,647 | New |
| Yousif Capital Management, LLC | 1,647 | $751.0K | 0.01% | +80+5.1% | Added |
| R Squared Ltd | 1,660 | $757.0K | 0.33% | +1,660 | New |
| Ballentine Partners, LLC | 1,661 | $757.4K | 0.01% | +44+2.7% | Added |
| Caerus Investment Advisors, LLC | 1,672 | $762.4K | 0.31% | +1,672 | New |
| Emerald Advisers, LLC | 1,695 | $772.9K | 0.02% | −246−12.7% | Reduced |
| Fort Sheridan Advisors LLC | 1,701 | $775.7K | 0.10% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 1,716 | $782.5K | 0.01% | 00.0% | Unchanged |
| Nomura Holdings Inc | 1,726 | $787.1K | 0.00% | +1,726 | New |
| Two Sigma Securities, LLC | 1,740 | $793.4K | 0.12% | +1,740 | New |
| Financiere des Professionnels - Fonds d,investissement inc. | 1,804 | $822.6K | 0.05% | +1,804 | New |
| Siemens Fonds Invest GmbH | 1,837 | $837.7K | 0.05% | −6−0.3% | Reduced |
| Meeder Advisory Services, Inc. | 1,889 | $861.4K | 0.04% | +764+67.9% | Added |
| Greenland Capital Management LP | 1,959 | $893.3K | 0.13% | +959+95.9% | Added |
| Fred Alger Management, LLC | 1,986 | $905.6K | 0.00% | +1,986 | New |
| Signaturefd, LLC | 1,998 | $911.2K | 0.01% | +92+4.8% | Added |
| Security National Bank of So Dak | 2,000 | $912.0K | 0.46% | 00.0% | Unchanged |
| CSS LLC | 2,010 | $916.6K | 0.05% | +2,010 | New |
| Harvest Fund Management Co., Ltd | 2,021 | $920.0K | 0.04% | +896+79.6% | Added |
| Archford Capital Strategies, LLC | 2,024 | $922.9K | 0.11% | +7+0.3% | Added |
| Bannerman Wealth Management Group, LLC | 2,047 | $933.4K | 0.69% | −117−5.4% | Reduced |
| Pinkerton Retirement Specialists, LLC | 2,049 | $934.3K | 0.10% | +2,049 | New |
| Exchange Traded Concepts, LLC | 2,073 | $945.3K | 0.01% | −733−26.1% | Reduced |
| Aristeia Capital LLC | 2,100 | $957.6K | 0.03% | +2,100 | New |