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 2026
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 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
- 793
- −48 vs. Q4 2025
- Shares held
- 131.4M
- +14.7M (+12.6%) vs. Q4 2025
- Total value
- $43.4B
- −$2.95B (−6.4%) vs. Q4 2025
- New holders
- 106
- 323 more added
- Sold out
- 154
- 258 more reduced
11 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Banque Transatlantique SA | 542 | $179.3K | 0.00% | +542 | New |
| Intrust Bank NA | 605 | $200.2K | 0.02% | +67+12.5% | Added |
| Quadrant Capital Group LLC | 611 | $202.2K | 0.01% | −4−0.7% | Reduced |
| Waddell & Associates, LLC | 618 | $204.5K | 0.01% | −399−39.2% | Reduced |
| Acadian Asset Management LLC | 621 | $205.0K | 0.00% | −20,687−97.1% | Reduced |
| Ascent Group, LLC | 627 | $207.5K | 0.01% | −168−21.1% | Reduced |
| Independent Financial Group, LLC | 630 | $208.4K | 0.00% | −68−9.7% | Reduced |
| Ofi Invest Asset Management | 729 | $209.3K | 0.00% | −47−6.1% | Reduced |
| Bull Harbor Capital LLC | 634 | $209.8K | 0.06% | +634 | New |
| Plante Moran Financial Advisors, LLC | 635 | $210.1K | 0.01% | 00.0% | Unchanged |
| Drive Wealth Management, LLC | 639 | $211.3K | 0.04% | +639 | New |
| EverSource Wealth Advisors, LLC | 640 | $211.8K | 0.01% | −421−39.7% | Reduced |
| PCM Encore, LLC | 651 | $215.3K | 0.04% | +46+7.6% | Added |
| Camden Capital, LLC | 654 | $216.5K | 0.01% | +654 | New |
| Sentinus, LLC | 658 | $217.7K | 0.02% | −393−37.4% | Reduced |
| 111 Capital | 666 | $220.4K | 0.05% | −785−54.1% | Reduced |
| Fiduciary Trust Co | 683 | $225.9K | 0.00% | +3+0.4% | Added |
| Reuter James Wealth Management, LLC | 691 | $228.6K | 0.03% | +691 | New |
| Modern Wealth Management, LLC | 696 | $228.8K | 0.00% | +696 | New |
| EP Wealth Advisors, LLC | 692 | $229.0K | 0.00% | +21+3.1% | Added |
| Evoke Wealth, LLC | 693 | $229.3K | 0.00% | +72+11.6% | Added |
| LeConte Wealth Management, LLC | 695 | $230.0K | 0.15% | +91+15.1% | Added |
| Ashton Thomas Securities, LLC | 696 | $230.3K | 0.03% | +8+1.2% | Added |
| Essex Financial Services, Inc. | 707 | $233.9K | 0.01% | +17+2.5% | Added |
| Quadcap Wealth Management, LLC | 707 | $233.9K | 0.03% | +707 | New |
| Perfromance Wealth Partners, LLC | 725 | $239.9K | 0.01% | 00.0% | Unchanged |
| Aaron Wealth Advisors | 729 | $241.2K | 0.01% | −203−21.8% | Reduced |
| Glenmede Trust Co NA | 731 | $241.9K | 0.00% | +56+8.3% | Added |
| L2 Asset Management, LLC | 748 | $247.5K | 0.02% | +77+11.5% | Added |
| Legacy Wealth Asset Management, LLC | 748 | $247.5K | 0.06% | +80+12.0% | Added |
| Capstone Investment Advisors, LLC | 753 | $249.1K | 0.00% | −8,165−91.6% | Reduced |
| Sowell Financial Services LLC | 754 | $249.6K | 0.01% | +109+16.9% | Added |
| SkyOak Wealth, LLC | 760 | $251.5K | 0.05% | 00.0% | Unchanged |
| Apollon Wealth Management, LLC | 767 | $253.7K | 0.00% | +767 | New |
| Daymark Wealth Partners, LLC | 768 | $254.1K | 0.01% | +768 | New |
| We Are One Seven, LLC | 780 | $258.1K | 0.01% | −53−6.4% | Reduced |
| First Affirmative Financial Network | 809 | $267.6K | 0.10% | +809 | New |
| SRS Capital Advisors, Inc. | 839 | $275.3K | 0.01% | +161+23.7% | Added |
| Chapin Davis, Inc. | 844 | $279.3K | 0.06% | +19+2.3% | Added |
| Poinciana Advisors Group, LLC | 851 | $281.6K | 0.22% | 00.0% | Unchanged |
| DRW Securities, LLC | 875 | $289.3K | 0.02% | −1,166−57.1% | Reduced |
| Savant Capital, LLC | 875 | $289.5K | 0.00% | 00.0% | Unchanged |
| DDD Partners, LLC | 889 | $294.1K | 0.02% | +889 | New |
| Parallel Advisors, LLC | 891 | $294.8K | 0.01% | +65+7.9% | Added |
| Verition Fund Management LLC | 898 | $297.1K | 0.00% | −3,107−77.6% | Reduced |
| Farther Finance Advisors, LLC | 910 | $299.1K | 0.00% | −325−26.3% | Reduced |
| Warren Averett Asset Management, LLC | 907 | $300.1K | 0.00% | +67+8.0% | Added |
| Nwam LLC | 914 | $302.4K | 0.02% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 916 | $303.1K | 0.01% | +82+9.8% | Added |
| Northwestern Mutual Wealth Management Co | 916 | $303.1K | 0.00% | +335+57.7% | Added |
| Alpine Global Management, LLC | 917 | $303.4K | 0.05% | −1,145−55.5% | Reduced |
| Net Worth Advisory Group | 920 | $304.3K | 0.06% | +920 | New |
| HCR Wealth Advisors | 924 | $305.7K | 0.03% | 00.0% | Unchanged |
| Thayer Partners, LLC | 927 | $306.7K | 0.15% | 00.0% | Unchanged |
| Atomi Financial Group, Inc. | 934 | $308.9K | 0.01% | +27+3.0% | Added |
| Concurrent Investment Advisors, LLC | 945 | $312.7K | 0.00% | +143+17.8% | Added |
| AlphaGrep UK Ltd | 961 | $318.0K | 0.09% | −895−48.2% | Reduced |
| Ostrum Asset Management | 961 | $318.0K | 0.02% | +14+1.5% | Added |
| Quarry LP | 966 | $319.6K | 0.06% | +822+570.8% | Added |
| Oversea-Chinese Banking CORP Ltd | 973 | $321.9K | 0.01% | +408+72.2% | Added |
| Coastal Bridge Advisors, LLC | 987 | $326.6K | 0.02% | −61−5.8% | Reduced |
| GAMMA Investing LLC | 994 | $328.9K | 0.02% | +101+11.3% | Added |
| Skopos Labs, Inc. | 997 | $329.8K | 0.01% | +349+53.9% | Added |
| Livforsakringsbolaget Skandia, Omsesidigt | 1,000 | $330.6K | 0.01% | 00.0% | Unchanged |
| Westmount Partners, LLC | 1,000 | $330.9K | 0.08% | 00.0% | Unchanged |
| Breakwater Capital Group | 1,007 | $333.2K | 0.04% | 00.0% | Unchanged |
| Wealth Alliance | 1,016 | $336.1K | 0.03% | +1,016 | New |
| Cambria Investment Management, L.P. | 1,019 | $337.2K | 0.02% | +1,019 | New |
| denkapparat Operations GmbH | 1,032 | $341.5K | 0.14% | +120+13.2% | Added |
| Nichols & Pratt Advisers LLP | 1,039 | $343.8K | 0.02% | 00.0% | Unchanged |
| Prosperity Consulting Group, LLC | 1,041 | $344.4K | 0.02% | 00.0% | Unchanged |
| GTS Securities LLC | 1,052 | $348.1K | 0.01% | +527+100.4% | Added |
| Cookson Peirce & Co Inc | 1,060 | $350.7K | 0.01% | +249+30.7% | Added |
| Eventide Asset Management, LLC | 1,111 | $351.2K | 0.01% | −32,924−96.7% | Reduced |
| SIH Partners, LLLP | 1,073 | $355.0K | 0.01% | +1,073 | New |
| Asahi Life Asset Management Co., Ltd. | 1,083 | $358.3K | 0.23% | +50+4.8% | Added |
| Benjamin Edwards Inc | 1,085 | $358.8K | 0.00% | +352+48.0% | Added |
| Evolve Private Wealth, LLC | 1,100 | $364.0K | 0.02% | −683−38.3% | Reduced |
| North Star Asset Management Inc | 1,103 | $364.9K | 0.02% | −2−0.2% | Reduced |
| Krilogy Financial LLC | 1,173 | $375.5K | 0.01% | −414−26.1% | Reduced |
| Sagespring Wealth Partners, LLC | 1,144 | $378.6K | 0.01% | +8+0.7% | Added |
| Mathes Company, Inc. | 1,155 | $382.0K | 0.14% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 1,157 | $382.8K | 0.00% | +367+46.5% | Added |
| MASTERINVEST Kapitalanlage GmbH | 1,179 | $390.1K | 0.04% | +1,179 | New |
| Lido Advisors, LLC | 1,180 | $390.5K | 0.00% | +463+64.6% | Added |
| Kestra Advisory Services, LLC | 1,184 | $391.8K | 0.00% | −667−36.0% | Reduced |
| CAPROCK Group, Inc. | 1,190 | $393.8K | 0.01% | +198+20.0% | Added |
| GAM Holding AG | 1,198 | $396.4K | 0.03% | +1,198 | New |
| Bradley Foster & Sargent Inc | 1,203 | $398.0K | 0.01% | +502+71.6% | Added |
| Perbak Capital Partners LLP | 1,205 | $398.7K | 0.10% | +1,205 | New |
| Wedmont Private Capital | 1,222 | $399.9K | 0.01% | +109+9.8% | Added |
| MAI Capital Management | 1,209 | $400.2K | 0.00% | +762+170.5% | Added |
| Generali Investments, Management Co LLC | 1,227 | $406.0K | 0.09% | +262+27.2% | Added |
| Cigna Investments Inc | 1,230 | $407.0K | 0.06% | 00.0% | Unchanged |
| Dynasty Wealth Management, LLC | 1,234 | $408.3K | 0.00% | +546+79.4% | Added |
| S-Bank Fund Management Ltd | 1,235 | $408.6K | 0.06% | −46−3.6% | Reduced |
| Frank, Rimerman Advisors LLC | 1,256 | $415.6K | 0.03% | +6+0.5% | Added |
| Mount Yale Investment Advisors, LLC | 1,263 | $417.9K | 0.01% | +1,263 | New |
| Allworth Financial LP | 1,283 | $424.6K | 0.00% | −70−5.2% | Reduced |
| Sava Infond d.o.o. | 1,285 | $425.2K | 0.06% | 00.0% | Unchanged |