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 |
|---|---|---|---|---|---|
| Dai-Ichi Life Insurance Company, Ltd | 5,455 | $2.49M | 0.06% | +2,000+57.9% | Added |
| CIBC Asset Management Inc | 5,498 | $2.51M | 0.01% | +40+0.7% | Added |
| Gilbert & Cook, Inc. | 5,508 | $2.51M | 0.32% | +1,514+37.9% | Added |
| US Bancorp | 5,646 | $2.57M | 0.00% | +946+20.1% | Added |
| E. Ohman J:or Asset Management AB | 5,700 | $2.60M | 0.06% | 00.0% | Unchanged |
| AustralianSuper Pty Ltd | 5,742 | $2.62M | 0.01% | +1,524+36.1% | Added |
| Intech Investment Management LLC | 5,812 | $2.65M | 0.02% | +1,404+31.9% | Added |
| Bank of Nova Scotia | 5,944 | $2.71M | 0.00% | +3,265+121.9% | Added |
| Bridgeway Capital Management, LLC | 6,030 | $2.75M | 0.06% | +6,030 | New |
| Thematics Asset Management | 6,125 | $2.79M | 0.13% | +7+0.1% | Added |
| Wolverine Trading, LLC | 6,262 | $2.80M | 0.06% | +5,140+458.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 6,160 | $2.81M | 0.01% | +1,385+29.0% | Added |
| Brevan Howard Capital Management LP | 6,170 | $2.81M | 0.04% | +6,170 | New |
| Sanctuary Advisors, LLC | 6,175 | $2.82M | 0.02% | +2,103+51.6% | Added |
| Maryland State Retirement & Pension System | 6,186 | $2.82M | 0.06% | +165+2.7% | Added |
| Point72 Asset Management, L.P. | 6,197 | $2.83M | 0.01% | −195,199−96.9% | Reduced |
| Pathstone Holdings, LLC | 6,297 | $2.87M | 0.01% | +221+3.6% | Added |
| Gulf International Bank (UK) Ltd | 6,378 | $2.91M | 0.10% | −117−1.8% | Reduced |
| Truist Financial Corp | 6,466 | $2.95M | 0.00% | +2,459+61.4% | Added |
| Colony Group, LLC | 6,617 | $2.99M | 0.00% | +3,467+110.1% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 6,705 | $3.06M | 0.03% | −207−3.0% | Reduced |
| Winton Group Ltd | 6,800 | $3.10M | 0.12% | +3,267+92.5% | Added |
| M&T Bank Corp | 6,802 | $3.10M | 0.01% | −1,401−17.1% | Reduced |
| Capula Management Ltd | 6,888 | $3.14M | 0.02% | +6,888 | New |
| Toroso Investments, LLC | 6,891 | $3.14M | 0.01% | +1,317+23.6% | Added |
| Advisory Services Network, LLC | 7,006 | $3.19M | 0.05% | +591+9.2% | Added |
| J.P. Marvel Investment Advisors, LLC | 7,105 | $3.24M | 0.47% | +281+4.1% | Added |
| Ci Investments Inc. | 7,224 | $3.29M | 0.01% | +3,109+75.6% | Added |
| SummitTX Capital, L.P. | 7,525 | $3.43M | 0.14% | +2,725+56.8% | Added |
| NewEdge Wealth, LLC | 7,993 | $3.47M | 0.05% | +7,091+786.1% | Added |
| Captrust Financial Advisors | 7,669 | $3.50M | 0.01% | +4,163+118.7% | Added |
| Prudential PLC | 7,696 | $3.51M | 0.03% | +3,584+87.2% | Added |
| Wolverine Asset Management LLC | 7,800 | $3.56M | 0.05% | +7,800 | New |
| Kentucky Retirement Systems | 7,836 | $3.57M | 0.10% | −417−5.1% | Reduced |
| MetLife Investment Management | 7,992 | $3.64M | 0.02% | +231+3.0% | Added |
| St Germain D J Co Inc | 8,151 | $3.72M | 0.15% | −843−9.4% | Reduced |
| La Banque Postale Asset Management SA | 8,184 | $3.73M | 0.05% | −138−1.7% | Reduced |
| S&CO Inc | 8,200 | $3.74M | 0.23% | −1,850−18.4% | Reduced |
| Genus Capital Management Inc. | 8,260 | $3.77M | 0.44% | +30+0.4% | Added |
| Catalyst Funds Management Pty Ltd | 8,320 | $3.79M | 0.58% | −2,450−22.7% | Reduced |
| NWK Group, Inc. | 8,538 | $3.89M | 1.32% | +8,538 | New |
| Guggenheim Capital LLC | 8,625 | $3.93M | 0.03% | −2,024−19.0% | Reduced |
| ASR Vermogensbeheer N.V. | 8,876 | $4.05M | 0.05% | −50−0.6% | Reduced |
| Motley Fool Asset Management LLC | 9,046 | $4.12M | 0.17% | +2,394+36.0% | Added |
| Prudential Financial Inc | 9,132 | $4.16M | 0.00% | −74,790−89.1% | Reduced |
| O'Shaughnessy Asset Management, LLC | 9,308 | $4.24M | 0.02% | +2,872+44.6% | Added |
| Commonwealth Equity Services, LLC | 9,407 | $4.29M | 0.01% | −519−5.2% | Reduced |
| Hudson Bay Capital Management LP | 9,411 | $4.29M | 0.03% | −5,937−38.7% | Reduced |
| J. Safra Sarasin Holding AG | 9,522 | $4.34M | 0.07% | −5,474−36.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 9,709 | $4.43M | 0.03% | −49,048−83.5% | Reduced |
| EFG Asset Management (Americas) Corp. | 9,738 | $4.44M | 0.77% | −1,877−16.2% | Reduced |
| Lazard Asset Management LLC | 9,751 | $4.45M | 0.01% | +2,001+25.8% | Added |
| Mackenzie Financial Corp | 9,773 | $4.46M | 0.01% | +698+7.7% | Added |
| Employees Retirement System of Texas | 9,792 | $4.46M | 0.04% | +318+3.4% | Added |
| Bank of Montreal | 9,933 | $4.53M | 0.00% | −3,178−24.2% | Reduced |
| Diadema Partners LP | 10,000 | $4.56M | 3.18% | +10,000 | New |
| Himension Fund | 10,094 | $4.60M | 0.28% | −3,392−25.2% | Reduced |
| Amalgamated Bank | 10,144 | $4.63M | 0.03% | +676+7.1% | Added |
| Headlands Technologies LLC | 10,192 | $4.65M | 0.37% | +10,192 | New |
| Blair William & Co | 10,244 | $4.67M | 0.01% | −348−3.3% | Reduced |
| Balyasny Asset Management LLC | 10,260 | $4.68M | 0.01% | −105,015−91.1% | Reduced |
| Schroder Investment Management Group | 10,818 | $4.84M | 0.00% | +2,238+26.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 10,671 | $4.86M | 0.01% | −887−7.7% | Reduced |
| Silvercrest Asset Management Group LLC | 10,807 | $4.93M | 0.03% | +556+5.4% | Added |
| Traynor Capital Management, Inc. | 10,873 | $4.96M | 0.28% | +668+6.5% | Added |
| Cullen/Frost Bankers, Inc. | 11,043 | $5.04M | 0.06% | +248+2.3% | Added |
| Raiffeisen Bank International AG | 11,609 | $5.19M | 0.07% | +2,705+30.4% | Added |
| Mercer Global Advisors Inc | 11,484 | $5.24M | 0.01% | +8,921+348.1% | Added |
| Dark Forest Capital Management LP | 11,598 | $5.29M | 0.20% | +11,598 | New |
| Virtu Financial LLC | 11,656 | $5.32M | 0.30% | +11,656 | New |
| Liontrust Investment Partners LLP | 11,656 | $5.32M | 0.08% | −1,113−8.7% | Reduced |
| Alberta Investment Management Corp | 11,700 | $5.34M | 0.04% | +11,700 | New |
| Comerica Bank | 11,790 | $5.38M | 0.02% | −6,827−36.7% | Reduced |
| Zacks Investment Management | 11,904 | $5.43M | 0.04% | −27−0.2% | Reduced |
| Assetmark, Inc | 11,918 | $5.43M | 0.01% | +375+3.2% | Added |
| CIBC World Markets Inc. | 12,116 | $5.52M | 0.01% | +12,116 | New |
| Nisa Investment Advisors, LLC | 12,133 | $5.53M | 0.02% | +3,891+47.2% | Added |
| Credit Agricole S A | 12,367 | $5.64M | 0.02% | +12,367 | New |
| Nordea Investment Management AB | 12,481 | $5.65M | 0.00% | +1,186+10.5% | Added |
| Trexquant Investment LP | 12,396 | $5.65M | 0.06% | −8,147−39.7% | Reduced |
| Public Employees Retirement Association of Colorado | 12,445 | $5.67M | 0.02% | −396−3.1% | Reduced |
| Fieldview Capital Management, LLC | 12,658 | $5.77M | 0.94% | +12,658 | New |
| Campbell & CO Investment Adviser LLC | 12,697 | $5.79M | 0.44% | +12,697 | New |
| SRS Capital Advisors, Inc. | 13,085 | $5.97M | 0.09% | +12,935+8,623.3% | Added |
| Holocene Advisors, LP | 13,086 | $5.97M | 0.01% | −583,730−97.8% | Reduced |
| The PNC Financial Services Group, Inc. | 13,115 | $5.98M | 0.00% | −55−0.4% | Reduced |
| Hantz Financial Services, Inc. | 13,146 | $6.00M | 0.09% | +12,767+3,368.6% | Added |
| Wealthfront Advisers LLC | 13,420 | $6.12M | 0.01% | +1,336+11.1% | Added |
| Tredje AP-fonden | 13,456 | $6.14M | 0.05% | +1,254+10.3% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 13,665 | $6.23M | 0.09% | 00.0% | Unchanged |
| JustInvest LLC | 13,985 | $6.38M | 0.07% | +595+4.4% | Added |
| Linden Advisors LP | 14,364 | $6.55M | 0.04% | +14,364 | New |
| OP Asset Management Ltd | 14,386 | $6.56M | 0.09% | +452+3.2% | Added |
| Rakuten Investment Management, Inc. | 31,152 | $6.58M | 0.03% | +31,152 | New |
| Cetera Investment Advisers | 14,523 | $6.62M | 0.01% | +4,635+46.9% | Added |
| Federation des caisses Desjardins du Quebec | 14,627 | $6.67M | 0.03% | +7,078+93.8% | Added |
| Wealth Enhancement Advisory Services, LLC | 14,525 | $6.68M | 0.01% | +9,407+183.8% | Added |
| Soleus Capital Management, L.P. | 15,250 | $6.95M | 0.37% | −91,500−85.7% | Reduced |
| Mutual of America Capital Management LLC | 15,307 | $6.98M | 0.07% | −639−4.0% | Reduced |
| Daiwa Securities Group Inc. | 15,496 | $7.07M | 0.02% | +2,555+19.7% | Added |