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 |
|---|---|---|---|---|---|
| Alps Advisors Inc | 1,542 | $464.2K | 0.00% | +1,542 | New |
| Meeder Asset Management Inc | 1,570 | $472.6K | 0.02% | +1,504+2,278.8% | Added |
| Meeder Advisory Services, Inc. | 1,611 | $485.0K | 0.02% | −242−13.1% | Reduced |
| Frec Markets, Inc. | 1,618 | $487.1K | 0.04% | +1,618 | New |
| GraniteShares Advisors LLC | 1,620 | $487.7K | 0.31% | −135−7.7% | Reduced |
| AlphaGrep UK Ltd | 1,623 | $488.6K | 0.15% | +662+68.9% | Added |
| Stephens Inc | 1,638 | $493.1K | 0.01% | +213+14.9% | Added |
| Horizon Investments, LLC | 1,656 | $498.5K | 0.01% | −976−37.1% | Reduced |
| Ballentine Partners, LLC | 1,695 | $510.2K | 0.01% | +56+3.4% | Added |
| Founders Financial Securities LLC | 1,698 | $511.1K | 0.03% | +337+24.8% | Added |
| Fort Sheridan Advisors LLC | 1,701 | $512.1K | 0.06% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 1,708 | $514.0K | 0.04% | +4+0.2% | Added |
| Theory Financial LLC | 1,719 | $517.5K | 0.16% | −1,025−37.4% | Reduced |
| Fieldview Capital Management, LLC | 1,745 | $525.3K | 0.15% | −3,530−66.9% | Reduced |
| Souders Financial Advisors | 1,769 | $532.5K | 0.05% | +125+7.6% | Added |
| Ostrum Asset Management | 1,788 | $538.2K | 0.03% | +827+86.1% | Added |
| Norden Group LLC | 1,792 | $539.4K | 0.04% | +239+15.4% | Added |
| Generali Asset Management SPA SGR | 1,799 | $541.6K | 0.01% | −1,394−43.7% | Reduced |
| Davenport & Co LLC | 1,802 | $542.5K | 0.00% | −40−2.2% | Reduced |
| HB Wealth Management, LLC | 1,824 | $549.2K | 0.00% | −171−8.6% | Reduced |
| Yousif Capital Management, LLC | 1,828 | $550.3K | 0.01% | +64+3.6% | Added |
| TD Waterhouse Canada Inc. | 1,825 | $550.7K | 0.00% | −146−7.4% | Reduced |
| Ellevest, Inc. | 1,842 | $552.9K | 0.07% | +5+0.3% | Added |
| S-Bank Fund Management Ltd | 1,844 | $555.1K | 0.08% | +609+49.3% | Added |
| Bannerman Wealth Management Group, LLC | 1,883 | $566.8K | 0.33% | −33−1.7% | Reduced |
| Global Retirement Partners, LLC | 1,893 | $569.9K | 0.01% | +1,893 | New |
| Capstone Investment Advisors, LLC | 1,899 | $571.7K | 0.00% | +1,146+152.2% | Added |
| Tema ETFs LLC | 1,930 | $581.0K | 0.02% | −42−2.1% | Reduced |
| Kovitz Investment Group Partners, LLC | 1,950 | $587.2K | 0.01% | −8−0.4% | Reduced |
| Fideuram Asset Management (Ireland) dac | 2,059 | $597.9K | 0.01% | +1,894+1,147.9% | Added |
| Security National Bank of So Dak | 2,000 | $602.1K | 0.28% | 00.0% | Unchanged |
| Archford Capital Strategies, LLC | 2,019 | $607.8K | 0.06% | −17−0.8% | Reduced |
| Mirova | 2,039 | $613.8K | 0.02% | −11,639−85.1% | Reduced |
| Signaturefd, LLC | 2,063 | $620.9K | 0.01% | +16+0.8% | Added |
| Blueshift Asset Management, LLC | 2,118 | $637.6K | 0.15% | +2,118 | New |
| Orion Capital Management LLC | 2,155 | $648.7K | 0.20% | −700−24.5% | Reduced |
| Horizon Kinetics Asset Management LLC | 2,168 | $652.6K | 0.01% | −104−4.6% | Reduced |
| Park Avenue Securities LLC | 2,180 | $656.0K | 0.00% | −616−22.0% | Reduced |
| Pallas Capital Advisors LLC | 2,203 | $663.2K | 0.02% | −9−0.4% | Reduced |
| ICICI Prudential Asset Management Co Ltd | 2,207 | $664.4K | 0.07% | +10+0.5% | Added |
| V-Square Quantitative Management LLC | 2,211 | $665.6K | 0.06% | +242+12.3% | Added |
| TCW Group Inc | 2,236 | $673.1K | 0.00% | +134+6.4% | Added |
| Graham Capital Management, L.P. | 2,256 | $679.1K | 0.02% | +2,256 | New |
| Group One Trading, L.P. | 2,270 | $683.3K | 0.02% | −3,275−59.1% | Reduced |
| Inceptionr LLC | 2,296 | $691.2K | 0.17% | +2,296 | New |
| Sectoral Asset Management Inc | 2,310 | $695.4K | 0.49% | 00.0% | Unchanged |
| Brandywine Managers, LLC | 2,318 | $697.8K | 0.35% | −850−26.8% | Reduced |
| Nixon Peabody Trust Co | 2,322 | $699.0K | 0.05% | 00.0% | Unchanged |
| Machina Capital S.A.S. | 2,335 | $702.9K | 0.11% | +2,335 | New |
| SummitTX Capital, L.P. | 2,336 | $703.2K | 0.02% | −1,275−35.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,366 | $712.2K | 0.02% | −7,261−75.4% | Reduced |
| 111 Capital | 2,412 | $726.1K | 0.12% | +1,746+262.2% | Added |
| Regal Investment Advisors LLC | 2,432 | $732.2K | 0.04% | −259−9.6% | 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 |
| Allspring Global Investments Holdings, LLC | 2,546 | $768.1K | 0.00% | −279,247−99.1% | Reduced |
| Militia Capital Management LLC | 2,560 | $770.6K | 0.14% | +2,560 | New |
| GWM Advisors LLC | 2,570 | $773.6K | 0.00% | +254+11.0% | Added |
| denkapparat Operations GmbH | 2,594 | $780.9K | 0.26% | +1,562+151.4% | Added |
| Kestra Investment Management, LLC | 2,618 | $788.1K | 0.02% | −5,778−68.8% | Reduced |
| New York State Teachers Retirement System | 2,623 | $790.0K | 0.00% | +2,623 | New |
| Westpac Banking Corp | 2,632 | $792.3K | 0.05% | +180+7.3% | Added |
| Everhart Financial Group, Inc. | 2,646 | $796.5K | 0.05% | −255−8.8% | Reduced |
| QRG Capital Management, Inc. | 2,652 | $798.3K | 0.01% | +375+16.5% | Added |
| Kestra Advisory Services, LLC | 2,711 | $816.1K | 0.00% | +1,527+129.0% | Added |
| Marks Group Wealth Management, Inc | 2,717 | $817.9K | 0.07% | +1,067+64.7% | Added |
| Perpetual Ltd | 2,722 | $819.4K | 0.01% | +32+1.2% | Added |
| Shepherd Financial Partners LLC | 2,741 | $825.1K | 0.07% | +5+0.2% | 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 |
| RSM US Wealth Management LLC | 2,770 | $833.7K | 0.01% | +59+2.2% | Added |
| Robertson Stephens Wealth Management, LLC | 2,782 | $837.5K | 0.02% | −54−1.9% | Reduced |
| Hall Laurie J Trustee | 2,812 | $846.5K | 0.26% | 00.0% | Unchanged |
| Gateway Investment Advisers LLC | 2,900 | $873.0K | 0.01% | +649+28.8% | Added |
| Siemens Fonds Invest GmbH | 2,919 | $878.7K | 0.04% | +81+2.9% | Added |
| Everence Capital Management Inc | 2,970 | $894.0K | 0.05% | 00.0% | Unchanged |
| SBI Okasan Asset Management Co.Ltd. | 3,100 | $909.9K | 0.03% | 00.0% | Unchanged |
| Western Financial Corp | 3,023 | $910.0K | 0.27% | +157+5.5% | Added |
| Callan Family Office, LLC | 3,078 | $926.6K | 0.02% | +43+1.4% | Added |
| Sumitomo Life Insurance Co | 3,111 | $936.5K | 0.02% | −173−5.3% | Reduced |
| J.Safra Asset Management Corp | 3,122 | $939.8K | 0.04% | +509+19.5% | Added |
| Sanctuary Advisors, LLC | 3,139 | $944.8K | 0.00% | −2,700−46.2% | Reduced |
| Walleye Capital LLC | 3,155 | $949.8K | 0.00% | +516+19.6% | Added |
| Wiley Bros.-Aintree Capital, LLC | 3,203 | $954.8K | 0.00% | −27−0.8% | Reduced |
| Values First Advisors, Inc. | 3,178 | $956.6K | 0.44% | −68−2.1% | Reduced |
| Burney Co | 3,190 | $960.3K | 0.03% | −221−6.5% | Reduced |
| Grandfield & Dodd, LLC | 3,204 | $964.5K | 0.05% | +123+4.0% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 3,220 | $969.3K | 0.03% | −100−3.0% | Reduced |
| ING Groep NV | 3,271 | $984.7K | 0.00% | +1,982+153.8% | Added |
| Merit Financial Group, LLC | 3,281 | $987.6K | 0.01% | +378+13.0% | Added |
| Laird Norton Trust Company, LLC | 3,300 | $993.4K | 0.02% | −207−5.9% | Reduced |
| Cinctive Capital Management LP | 3,305 | $994.9K | 0.04% | +3,305 | New |
| Kentucky Retirement Systems Insurance Trust Fund | 3,321 | $999.7K | 0.06% | +36+1.1% | Added |
| Spectrum Planning & Advisory Services Inc. | 3,350 | $1.01M | 0.45% | 00.0% | Unchanged |
| Anchor Investment Management, LLC | 3,389 | $1.02M | 0.08% | +570+20.2% | Added |
| Aptus Capital Advisors, LLC | 3,389 | $1.02M | 0.01% | +1,876+124.0% | Added |
| Laurion Capital Management LP | 3,391 | $1.02M | 0.07% | −1,040−23.5% | Reduced |
| Truist Financial Corp | 3,425 | $1.03M | 0.00% | −4,276−55.5% | Reduced |
| Prudential Financial Inc | 3,511 | $1.06M | 0.00% | +555+18.8% | Added |
| Fiera Capital Corp | 3,524 | $1.06M | 0.00% | −75,298−95.5% | Reduced |