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 2025
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 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
- 653
- +35 vs. Q1 2025
- Shares held
- 132.1M
- +2.77M (+2.1%) vs. Q1 2025
- Total value
- $43.1B
- +$8.27B (+23.8%) vs. Q1 2025
- New holders
- 98
- 262 more added
- Sold out
- 63
- 214 more reduced
7 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| HRT Financial LP | 17,887 | $5.83M | 0.03% | −37,286−67.6% | Reduced |
| First Turn Management, LLC | 17,879 | $5.83M | 1.09% | +17,879 | New |
| MML Investors Services, LLC | 17,838 | $5.82M | 0.02% | +4,911+38.0% | Added |
| Gotham Asset Management, LLC | 17,787 | $5.80M | 0.03% | +3,270+22.5% | Added |
| Capital Group Investment Management Pte. Ltd. | 17,738 | $5.78M | 1.03% | +388+2.2% | Added |
| Assenagon Asset Management S.A. | 17,686 | $5.77M | 0.01% | +11,281+176.1% | Added |
| Jacobs Levy Equity Management, Inc | 17,674 | $5.76M | 0.02% | −135,296−88.4% | Reduced |
| Jump Financial, LLC | 17,392 | $5.67M | 0.07% | +1,675+10.7% | Added |
| Jain Global LLC | 16,730 | $5.46M | 0.08% | +10,509+168.9% | Added |
| Nissay Asset Management Corp | 16,288 | $5.31M | 0.03% | +74+0.5% | Added |
| Mutual of America Capital Management LLC | 15,946 | $5.20M | 0.06% | +2,302+16.9% | Added |
| Creative Planning | 15,580 | $5.08M | 0.00% | −519−3.2% | Reduced |
| Hudson Bay Capital Management LP | 15,348 | $5.00M | 0.03% | +15,348 | New |
| Mariner, LLC | 15,073 | $4.91M | 0.01% | +190+1.3% | Added |
| J. Safra Sarasin Holding AG | 14,996 | $4.89M | 0.08% | −1,439−8.8% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 14,808 | $4.83M | 0.04% | +1,851+14.3% | Added |
| Elo Mutual Pension Insurance Co | 14,127 | $4.61M | 0.09% | +3,222+29.5% | Added |
| OP Asset Management Ltd | 13,934 | $4.54M | 0.07% | +255+1.9% | Added |
| Stifel Financial Corp | 13,700 | $4.47M | 0.00% | +6,627+93.7% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 13,665 | $4.46M | 0.07% | 00.0% | Unchanged |
| Himension Fund | 13,486 | $4.40M | 0.34% | −1,816−11.9% | Reduced |
| Quantinno Capital Management LP | 13,464 | $4.39M | 0.02% | +7,032+109.3% | Added |
| JustInvest LLC | 13,390 | $4.37M | 0.05% | +4,302+47.3% | Added |
| The PNC Financial Services Group, Inc. | 13,170 | $4.29M | 0.00% | +45+0.3% | Added |
| Bank of Montreal | 13,111 | $4.28M | 0.00% | +2,427+22.7% | Added |
| Mirae Asset Securities (USA) Inc. | 13,034 | $4.25M | 0.19% | +13,034 | New |
| Daiwa Securities Group Inc. | 12,941 | $4.22M | 0.02% | +35+0.3% | Added |
| Public Employees Retirement Association of Colorado | 12,841 | $4.19M | 0.02% | −232−1.8% | Reduced |
| Liontrust Investment Partners LLP | 12,769 | $4.16M | 0.06% | −6,111−32.4% | Reduced |
| Tredje AP-fonden | 12,202 | $3.98M | 0.03% | −3,705−23.3% | Reduced |
| Sterling Capital Management LLC | 12,089 | $3.94M | 0.06% | −1,008−7.7% | Reduced |
| Wealthfront Advisers LLC | 12,084 | $3.94M | 0.01% | +3,363+38.6% | Added |
| Zacks Investment Management | 11,931 | $3.89M | 0.03% | −10,331−46.4% | Reduced |
| EFG Asset Management (Americas) Corp. | 11,615 | $3.79M | 0.70% | −1,757−13.1% | Reduced |
| Readystate Asset Management LP | 11,601 | $3.78M | 0.16% | +11,601 | New |
| Assetmark, Inc | 11,543 | $3.76M | 0.01% | +902+8.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 11,558 | $3.76M | 0.01% | −2,395−17.2% | Reduced |
| Nordea Investment Management AB | 11,295 | $3.64M | 0.00% | +1,060+10.4% | Added |
| Cullen/Frost Bankers, Inc. | 10,795 | $3.52M | 0.04% | +78+0.7% | Added |
| Catalyst Funds Management Pty Ltd | 10,770 | $3.51M | 0.97% | −8,430−43.9% | Reduced |
| Guggenheim Capital LLC | 10,649 | $3.47M | 0.03% | −1,718−13.9% | Reduced |
| Blair William & Co | 10,592 | $3.45M | 0.01% | −486−4.4% | Reduced |
| Silvercrest Asset Management Group LLC | 10,251 | $3.34M | 0.02% | +430+4.4% | Added |
| Cerity Partners LLC | 10,113 | $3.30M | 0.01% | −4,529−30.9% | Reduced |
| Natixis Advisors, L.P. | 10,109 | $3.30M | 0.01% | +10,109 | New |
| Traynor Capital Management, Inc. | 10,205 | $3.29M | 0.23% | +372+3.8% | Added |
| S&CO Inc | 10,050 | $3.28M | 0.21% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 9,926 | $3.24M | 0.00% | +1,455+17.2% | Added |
| Cetera Investment Advisers | 9,888 | $3.22M | 0.01% | +1,871+23.3% | Added |
| Polar Asset Management Partners Inc. | 9,600 | $3.13M | 0.08% | +9,600 | New |
| Employees Retirement System of Texas | 9,474 | $3.09M | 0.03% | +9,474 | New |
| Amalgamated Bank | 9,468 | $3.09M | 0.02% | +615+6.9% | Added |
| Mackenzie Financial Corp | 9,075 | $2.96M | 0.00% | −410−4.3% | Reduced |
| St Germain D J Co Inc | 8,994 | $2.93M | 0.13% | +8,994 | New |
| ASR Vermogensbeheer N.V. | 8,926 | $2.91M | 0.04% | +163+1.9% | Added |
| Raiffeisen Bank International AG | 8,904 | $2.87M | 0.04% | +8,904 | New |
| Schroder Investment Management Group | 8,580 | $2.80M | 0.00% | −19,203−69.1% | Reduced |
| Jefferies Financial Group Inc. | 8,342 | $2.72M | 0.04% | −7,005−45.6% | Reduced |
| La Banque Postale Asset Management SA | 8,322 | $2.71M | 0.04% | +8,322 | New |
| Kentucky Retirement Systems | 8,253 | $2.69M | 0.08% | −541−6.2% | Reduced |
| Nisa Investment Advisors, LLC | 8,242 | $2.69M | 0.01% | +87+1.1% | Added |
| Genus Capital Management Inc. | 8,230 | $2.68M | 0.34% | +2,100+34.3% | Added |
| M&T Bank Corp | 8,203 | $2.67M | 0.01% | +335+4.3% | Added |
| Man Group plc | 8,109 | $2.64M | 0.01% | +1,038+14.7% | Added |
| MetLife Investment Management | 7,761 | $2.53M | 0.01% | +466+6.4% | Added |
| Lazard Asset Management LLC | 7,750 | $2.53M | 0.00% | −4,138−34.8% | Reduced |
| Advisory Services Network, LLC | 6,415 | $2.52M | 0.04% | −7,101−52.5% | Reduced |
| Acadian Asset Management LLC | 7,719 | $2.52M | 0.01% | −1,258−14.0% | Reduced |
| Voloridge Investment Management, LLC | 7,702 | $2.51M | 0.01% | −54,600−87.6% | Reduced |
| Federation des caisses Desjardins du Quebec | 7,549 | $2.46M | 0.01% | −1,873−19.9% | Reduced |
| Shell Asset Management Co | 7,257 | $2.37M | 0.08% | +1,602+28.3% | Added |
| Portman Square Capital LLP | 6,967 | $2.27M | 0.24% | −5,562−44.4% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 6,912 | $2.25M | 0.02% | +1,570+29.4% | Added |
| Andra AP-fonden | 6,900 | $2.25M | 0.03% | −9,900−58.9% | Reduced |
| J.P. Marvel Investment Advisors, LLC | 6,824 | $2.23M | 0.36% | +2,824+70.6% | Added |
| Motley Fool Asset Management LLC | 6,652 | $2.17M | 0.10% | +623+10.3% | Added |
| Sivik Global Healthcare LLC | 6,500 | $2.12M | 0.95% | +6,500 | New |
| Gulf International Bank (UK) Ltd | 6,495 | $2.12M | 0.07% | −869−11.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 6,436 | $2.10M | 0.01% | +2,633+69.2% | Added |
| Profund Advisors LLC | 6,418 | $2.09M | 0.08% | −2,408−27.3% | Reduced |
| Hussman Strategic Advisors, Inc. | 6,300 | $2.05M | 0.47% | −2,100−25.0% | Reduced |
| Ieq Capital, LLC | 6,122 | $2.00M | 0.01% | −37,892−86.1% | Reduced |
| Thematics Asset Management | 6,118 | $2.00M | 0.09% | +6,118 | New |
| Pathstone Holdings, LLC | 6,076 | $1.98M | 0.01% | −222−3.5% | Reduced |
| Maryland State Retirement & Pension System | 6,021 | $1.96M | 0.04% | 00.0% | Unchanged |
| Gateway Investment Advisers LLC | 5,889 | $1.92M | 0.02% | −651−10.0% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 5,825 | $1.90M | 0.10% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 5,743 | $1.87M | 0.08% | +2,015+54.1% | Added |
| Verition Fund Management LLC | 5,703 | $1.86M | 0.01% | −5,076−47.1% | Reduced |
| E. Ohman J:or Asset Management AB | 5,700 | $1.86M | 0.05% | −100−1.7% | Reduced |
| Toroso Investments, LLC | 5,574 | $1.82M | 0.01% | −553−9.0% | Reduced |
| CWM, LLC | 5,512 | $1.80M | 0.01% | −11,152−66.9% | Reduced |
| CIBC Asset Management Inc | 5,458 | $1.78M | 0.01% | +36+0.7% | Added |
| CIBC World Markets Corp | 5,417 | $1.77M | 0.01% | −451−7.7% | Reduced |
| Knollwood Investment Advisory, LLC | 5,355 | $1.75M | 0.17% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 5,301 | $1.73M | 0.02% | −1,174−18.1% | Reduced |
| Tema ETFs LLC | 5,301 | $1.73M | 0.46% | −1,174−18.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 5,118 | $1.70M | 0.00% | −9,286−64.5% | Reduced |
| Burney Co | 5,142 | $1.68M | 0.06% | −1,060−17.1% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 5,005 | $1.63M | 0.04% | +5,005 | New |