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, Q2 2026
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 30, 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
- 794
- +8 vs. Q1 2026
- Shares held
- 133.4M
- +2.17M (+1.7%) vs. Q1 2026
- Total value
- $40.1B
- −$3.18B (−7.4%) vs. Q1 2026
- New holders
- 88
- 322 more added
- Sold out
- 80
- 285 more reduced
7 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Spectrum Planning & Advisory Services Inc. | 3,350 | $1.01M | 0.45% | 00.0% | Unchanged |
| Kentucky Retirement Systems Insurance Trust Fund | 3,321 | $999.7K | 0.06% | +36+1.1% | Added |
| Cinctive Capital Management LP | 3,305 | $994.9K | 0.04% | +3,305 | New |
| Laird Norton Trust Company, LLC | 3,300 | $993.4K | 0.02% | −207−5.9% | Reduced |
| Merit Financial Group, LLC | 3,281 | $987.6K | 0.01% | +378+13.0% | Added |
| ING Groep NV | 3,271 | $984.7K | 0.00% | +1,982+153.8% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 3,220 | $969.3K | 0.03% | −100−3.0% | Reduced |
| Grandfield & Dodd, LLC | 3,204 | $964.5K | 0.05% | +123+4.0% | Added |
| Burney Co | 3,190 | $960.3K | 0.03% | −221−6.5% | Reduced |
| Values First Advisors, Inc. | 3,178 | $956.6K | 0.44% | −68−2.1% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 3,203 | $954.8K | 0.00% | −27−0.8% | Reduced |
| Walleye Capital LLC | 3,155 | $949.8K | 0.00% | +516+19.6% | Added |
| Sanctuary Advisors, LLC | 3,139 | $944.8K | 0.00% | −2,700−46.2% | Reduced |
| J.Safra Asset Management Corp | 3,122 | $939.8K | 0.04% | +509+19.5% | Added |
| Sumitomo Life Insurance Co | 3,111 | $936.5K | 0.02% | −173−5.3% | Reduced |
| Callan Family Office, LLC | 3,078 | $926.6K | 0.02% | +43+1.4% | Added |
| Western Financial Corp | 3,023 | $910.0K | 0.27% | +157+5.5% | Added |
| SBI Okasan Asset Management Co.Ltd. | 3,100 | $909.9K | 0.03% | 00.0% | Unchanged |
| Everence Capital Management Inc | 2,970 | $894.0K | 0.05% | 00.0% | Unchanged |
| Siemens Fonds Invest GmbH | 2,919 | $878.7K | 0.04% | +81+2.9% | Added |
| Gateway Investment Advisers LLC | 2,900 | $873.0K | 0.01% | +649+28.8% | Added |
| Hall Laurie J Trustee | 2,812 | $846.5K | 0.26% | 00.0% | Unchanged |
| Robertson Stephens Wealth Management, LLC | 2,782 | $837.5K | 0.02% | −54−1.9% | Reduced |
| RSM US Wealth Management LLC | 2,770 | $833.7K | 0.01% | +59+2.2% | Added |
| Flputnam Investment Management Co | 2,761 | $831.1K | 0.01% | +20+0.7% | Added |
| Rothschild Investment LLC | 2,761 | $831.1K | 0.03% | +2,602+1,636.5% | Added |
| Shepherd Financial Partners LLC | 2,741 | $825.1K | 0.07% | +5+0.2% | Added |
| Perpetual Ltd | 2,722 | $819.4K | 0.01% | +32+1.2% | Added |
| Marks Group Wealth Management, Inc | 2,717 | $817.9K | 0.07% | +1,067+64.7% | Added |
| Kestra Advisory Services, LLC | 2,711 | $816.1K | 0.00% | +1,527+129.0% | Added |
| QRG Capital Management, Inc. | 2,652 | $798.3K | 0.01% | +375+16.5% | Added |
| Everhart Financial Group, Inc. | 2,646 | $796.5K | 0.05% | −255−8.8% | Reduced |
| Westpac Banking Corp | 2,632 | $792.3K | 0.05% | +180+7.3% | Added |
| New York State Teachers Retirement System | 2,623 | $790.0K | 0.00% | +2,623 | New |
| Kestra Investment Management, LLC | 2,618 | $788.1K | 0.02% | −5,778−68.8% | Reduced |
| denkapparat Operations GmbH | 2,594 | $780.9K | 0.26% | +1,562+151.4% | Added |
| GWM Advisors LLC | 2,570 | $773.6K | 0.00% | +254+11.0% | Added |
| Militia Capital Management LLC | 2,560 | $770.6K | 0.14% | +2,560 | New |
| Allspring Global Investments Holdings, LLC | 2,546 | $768.1K | 0.00% | −279,247−99.1% | Reduced |
| Cannon Global Investment Management, LLC | 2,500 | $752.6K | 2.27% | +100+4.2% | Added |
| O'Connor Alternative Investments LLC | 2,500 | $752.6K | 0.05% | +2,500 | New |
| Regal Investment Advisors LLC | 2,432 | $732.2K | 0.04% | −259−9.6% | Reduced |
| 111 Capital | 2,412 | $726.1K | 0.12% | +1,746+262.2% | Added |
| Tower Research Capital LLC (TRC) | 2,366 | $712.2K | 0.02% | −7,261−75.4% | Reduced |
| SummitTX Capital, L.P. | 2,336 | $703.2K | 0.02% | −1,275−35.3% | Reduced |
| Machina Capital S.A.S. | 2,335 | $702.9K | 0.11% | +2,335 | New |
| Nixon Peabody Trust Co | 2,322 | $699.0K | 0.05% | 00.0% | Unchanged |
| Brandywine Managers, LLC | 2,318 | $697.8K | 0.35% | −850−26.8% | Reduced |
| Sectoral Asset Management Inc | 2,310 | $695.4K | 0.49% | 00.0% | Unchanged |
| Inceptionr LLC | 2,296 | $691.2K | 0.17% | +2,296 | New |
| Group One Trading, L.P. | 2,270 | $683.3K | 0.02% | −3,275−59.1% | Reduced |
| Graham Capital Management, L.P. | 2,256 | $679.1K | 0.02% | +2,256 | New |
| TCW Group Inc | 2,236 | $673.1K | 0.00% | +134+6.4% | Added |
| V-Square Quantitative Management LLC | 2,211 | $665.6K | 0.06% | +242+12.3% | Added |
| ICICI Prudential Asset Management Co Ltd | 2,207 | $664.4K | 0.07% | +10+0.5% | Added |
| Pallas Capital Advisors LLC | 2,203 | $663.2K | 0.02% | −9−0.4% | Reduced |
| Park Avenue Securities LLC | 2,180 | $656.0K | 0.00% | −616−22.0% | Reduced |
| Horizon Kinetics Asset Management LLC | 2,168 | $652.6K | 0.01% | −104−4.6% | Reduced |
| Orion Capital Management LLC | 2,155 | $648.7K | 0.20% | −700−24.5% | Reduced |
| Blueshift Asset Management, LLC | 2,118 | $637.6K | 0.15% | +2,118 | New |
| Signaturefd, LLC | 2,063 | $620.9K | 0.01% | +16+0.8% | Added |
| Mirova | 2,039 | $613.8K | 0.02% | −11,639−85.1% | Reduced |
| Archford Capital Strategies, LLC | 2,019 | $607.8K | 0.06% | −17−0.8% | Reduced |
| Security National Bank of So Dak | 2,000 | $602.1K | 0.28% | 00.0% | Unchanged |
| Fideuram Asset Management (Ireland) dac | 2,059 | $597.9K | 0.01% | +1,894+1,147.9% | Added |
| Kovitz Investment Group Partners, LLC | 1,950 | $587.2K | 0.01% | −8−0.4% | Reduced |
| Tema ETFs LLC | 1,930 | $581.0K | 0.02% | −42−2.1% | Reduced |
| Capstone Investment Advisors, LLC | 1,899 | $571.7K | 0.00% | +1,146+152.2% | Added |
| Global Retirement Partners, LLC | 1,893 | $569.9K | 0.01% | +1,893 | New |
| Bannerman Wealth Management Group, LLC | 1,883 | $566.8K | 0.33% | −33−1.7% | Reduced |
| S-Bank Fund Management Ltd | 1,844 | $555.1K | 0.08% | +609+49.3% | Added |
| Ellevest, Inc. | 1,842 | $552.9K | 0.07% | +5+0.3% | Added |
| TD Waterhouse Canada Inc. | 1,825 | $550.7K | 0.00% | −146−7.4% | Reduced |
| Yousif Capital Management, LLC | 1,828 | $550.3K | 0.01% | +64+3.6% | Added |
| HB Wealth Management, LLC | 1,824 | $549.2K | 0.00% | −171−8.6% | Reduced |
| Davenport & Co LLC | 1,802 | $542.5K | 0.00% | −40−2.2% | Reduced |
| Generali Asset Management SPA SGR | 1,799 | $541.6K | 0.01% | −1,394−43.7% | Reduced |
| Norden Group LLC | 1,792 | $539.4K | 0.04% | +239+15.4% | Added |
| Ostrum Asset Management | 1,788 | $538.2K | 0.03% | +827+86.1% | Added |
| Souders Financial Advisors | 1,769 | $532.5K | 0.05% | +125+7.6% | Added |
| Fieldview Capital Management, LLC | 1,745 | $525.3K | 0.15% | −3,530−66.9% | Reduced |
| Theory Financial LLC | 1,719 | $517.5K | 0.16% | −1,025−37.4% | Reduced |
| Harbor Capital Advisors, Inc. | 1,708 | $514.0K | 0.04% | +4+0.2% | Added |
| Fort Sheridan Advisors LLC | 1,701 | $512.1K | 0.06% | 00.0% | Unchanged |
| Founders Financial Securities LLC | 1,698 | $511.1K | 0.03% | +337+24.8% | Added |
| Ballentine Partners, LLC | 1,695 | $510.2K | 0.01% | +56+3.4% | Added |
| Horizon Investments, LLC | 1,656 | $498.5K | 0.01% | −976−37.1% | Reduced |
| Stephens Inc | 1,638 | $493.1K | 0.01% | +213+14.9% | Added |
| AlphaGrep UK Ltd | 1,623 | $488.6K | 0.15% | +662+68.9% | Added |
| GraniteShares Advisors LLC | 1,620 | $487.7K | 0.31% | −135−7.7% | Reduced |
| Frec Markets, Inc. | 1,618 | $487.1K | 0.04% | +1,618 | New |
| Meeder Advisory Services, Inc. | 1,611 | $485.0K | 0.02% | −242−13.1% | Reduced |
| Meeder Asset Management Inc | 1,570 | $472.6K | 0.02% | +1,504+2,278.8% | Added |
| Alps Advisors Inc | 1,542 | $464.2K | 0.00% | +1,542 | New |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 1,533 | $461.5K | 0.00% | 00.0% | Unchanged |
| Fulton Bank, N.A. | 1,505 | $453.1K | 0.01% | −44−2.8% | Reduced |
| High Net Worth Advisory Group LLC | 1,500 | $451.5K | 0.10% | 00.0% | Unchanged |
| Rangeley Capital, LLC | 1,500 | $451.5K | 0.44% | +1,500 | New |
| Eventide Asset Management, LLC | 1,526 | $447.9K | 0.01% | +415+37.4% | Added |
| Alpine Global Management, LLC | 1,467 | $441.6K | 0.07% | +550+60.0% | Added |