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 |
|---|---|---|---|---|---|
| Mackenzie Financial Corp | 9,075 | $2.96M | 0.00% | −410−4.3% | Reduced |
| Amalgamated Bank | 9,468 | $3.09M | 0.02% | +615+6.9% | Added |
| Employees Retirement System of Texas | 9,474 | $3.09M | 0.03% | +9,474 | New |
| Polar Asset Management Partners Inc. | 9,600 | $3.13M | 0.08% | +9,600 | New |
| Cetera Investment Advisers | 9,888 | $3.22M | 0.01% | +1,871+23.3% | Added |
| Commonwealth Equity Services, LLC | 9,926 | $3.24M | 0.00% | +1,455+17.2% | Added |
| S&CO Inc | 10,050 | $3.28M | 0.21% | 00.0% | Unchanged |
| Traynor Capital Management, Inc. | 10,205 | $3.29M | 0.23% | +372+3.8% | Added |
| Natixis Advisors, L.P. | 10,109 | $3.30M | 0.01% | +10,109 | New |
| Cerity Partners LLC | 10,113 | $3.30M | 0.01% | −4,529−30.9% | Reduced |
| Silvercrest Asset Management Group LLC | 10,251 | $3.34M | 0.02% | +430+4.4% | Added |
| Blair William & Co | 10,592 | $3.45M | 0.01% | −486−4.4% | Reduced |
| Guggenheim Capital LLC | 10,649 | $3.47M | 0.03% | −1,718−13.9% | Reduced |
| Catalyst Funds Management Pty Ltd | 10,770 | $3.51M | 0.97% | −8,430−43.9% | Reduced |
| Cullen/Frost Bankers, Inc. | 10,795 | $3.52M | 0.04% | +78+0.7% | Added |
| Nordea Investment Management AB | 11,295 | $3.64M | 0.00% | +1,060+10.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 11,558 | $3.76M | 0.01% | −2,395−17.2% | Reduced |
| Assetmark, Inc | 11,543 | $3.76M | 0.01% | +902+8.5% | Added |
| Readystate Asset Management LP | 11,601 | $3.78M | 0.16% | +11,601 | New |
| EFG Asset Management (Americas) Corp. | 11,615 | $3.79M | 0.70% | −1,757−13.1% | Reduced |
| Zacks Investment Management | 11,931 | $3.89M | 0.03% | −10,331−46.4% | Reduced |
| Wealthfront Advisers LLC | 12,084 | $3.94M | 0.01% | +3,363+38.6% | Added |
| Sterling Capital Management LLC | 12,089 | $3.94M | 0.06% | −1,008−7.7% | Reduced |
| Tredje AP-fonden | 12,202 | $3.98M | 0.03% | −3,705−23.3% | Reduced |
| Liontrust Investment Partners LLP | 12,769 | $4.16M | 0.06% | −6,111−32.4% | Reduced |
| Public Employees Retirement Association of Colorado | 12,841 | $4.19M | 0.02% | −232−1.8% | Reduced |
| Daiwa Securities Group Inc. | 12,941 | $4.22M | 0.02% | +35+0.3% | Added |
| Mirae Asset Securities (USA) Inc. | 13,034 | $4.25M | 0.19% | +13,034 | New |
| Bank of Montreal | 13,111 | $4.28M | 0.00% | +2,427+22.7% | Added |
| The PNC Financial Services Group, Inc. | 13,170 | $4.29M | 0.00% | +45+0.3% | Added |
| JustInvest LLC | 13,390 | $4.37M | 0.05% | +4,302+47.3% | Added |
| Quantinno Capital Management LP | 13,464 | $4.39M | 0.02% | +7,032+109.3% | Added |
| Himension Fund | 13,486 | $4.40M | 0.34% | −1,816−11.9% | Reduced |
| Aware Super Pty Ltd as trustee of Aware Super | 13,665 | $4.46M | 0.07% | 00.0% | Unchanged |
| Stifel Financial Corp | 13,700 | $4.47M | 0.00% | +6,627+93.7% | Added |
| OP Asset Management Ltd | 13,934 | $4.54M | 0.07% | +255+1.9% | Added |
| Elo Mutual Pension Insurance Co | 14,127 | $4.61M | 0.09% | +3,222+29.5% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 14,808 | $4.83M | 0.04% | +1,851+14.3% | Added |
| J. Safra Sarasin Holding AG | 14,996 | $4.89M | 0.08% | −1,439−8.8% | Reduced |
| Mariner, LLC | 15,073 | $4.91M | 0.01% | +190+1.3% | Added |
| Hudson Bay Capital Management LP | 15,348 | $5.00M | 0.03% | +15,348 | New |
| Creative Planning | 15,580 | $5.08M | 0.00% | −519−3.2% | Reduced |
| Mutual of America Capital Management LLC | 15,946 | $5.20M | 0.06% | +2,302+16.9% | Added |
| Nissay Asset Management Corp | 16,288 | $5.31M | 0.03% | +74+0.5% | Added |
| Jain Global LLC | 16,730 | $5.46M | 0.08% | +10,509+168.9% | Added |
| Jump Financial, LLC | 17,392 | $5.67M | 0.07% | +1,675+10.7% | Added |
| Jacobs Levy Equity Management, Inc | 17,674 | $5.76M | 0.02% | −135,296−88.4% | Reduced |
| Assenagon Asset Management S.A. | 17,686 | $5.77M | 0.01% | +11,281+176.1% | Added |
| Capital Group Investment Management Pte. Ltd. | 17,738 | $5.78M | 1.03% | +388+2.2% | Added |
| Gotham Asset Management, LLC | 17,787 | $5.80M | 0.03% | +3,270+22.5% | Added |
| MML Investors Services, LLC | 17,838 | $5.82M | 0.02% | +4,911+38.0% | Added |
| First Turn Management, LLC | 17,879 | $5.83M | 1.09% | +17,879 | New |
| HRT Financial LP | 17,887 | $5.83M | 0.03% | −37,286−67.6% | Reduced |
| Comerica Bank | 18,617 | $6.07M | 0.02% | +1,364+7.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 18,963 | $6.18M | 0.06% | +212+1.1% | Added |
| Boothbay Fund Management, LLC | 19,213 | $6.27M | 0.20% | +9,123+90.4% | Added |
| Silvant Capital Management LLC | 19,347 | $6.31M | 0.24% | +3,152+19.5% | Added |
| Point72 Europe (London) LLP | 19,934 | $6.50M | 0.33% | +3,976+24.9% | Added |
| Caisse de Depot Et Placement du Quebec | 20,044 | $6.54M | 0.01% | −3,719−15.7% | Reduced |
| British Columbia Investment Management Corp | 20,471 | $6.68M | 0.04% | −4,195−17.0% | Reduced |
| Trexquant Investment LP | 20,543 | $6.70M | 0.08% | +20,543 | New |
| Artia Global Partners LP | 20,970 | $6.84M | 1.76% | −7,630−26.7% | Reduced |
| Utah Retirement Systems | 20,970 | $6.84M | 0.07% | −355−1.7% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 21,000 | $6.85M | 0.06% | +21,000 | New |
| EFG Asset Management (North America) Corp. | 21,162 | $6.89M | 0.97% | −3,529−14.3% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 22,251 | $7.26M | 0.07% | −512−2.2% | Reduced |
| Jane Street Group, LLC | 22,856 | $7.45M | 0.01% | −75,695−76.8% | Reduced |
| Cinctive Capital Management LP | 22,868 | $7.46M | 0.42% | −1,994−8.0% | Reduced |
| Kornitzer Capital Management Inc | 23,164 | $7.55M | 0.15% | +21,164+1,058.2% | Added |
| Toronto Dominion Bank | 23,631 | $7.71M | 0.02% | +4,246+21.9% | Added |
| Swiss Life Asset Management Ltd | 23,789 | $7.76M | 0.05% | +13,979+142.5% | Added |
| Xponance, Inc. | 25,017 | $8.16M | 0.07% | +1,860+8.0% | Added |
| IFM Investors Pty Ltd | 25,358 | $8.27M | 0.08% | +1,508+6.3% | Added |
| Illinois Municipal Retirement Fund | 26,046 | $8.49M | 0.12% | −36,619−58.4% | Reduced |
| USS Investment Management Ltd | 26,366 | $8.59M | 0.05% | 00.0% | Unchanged |
| Forsta Ap-Fonden | 26,400 | $8.61M | 0.06% | +600+2.3% | Added |
| DnB Asset Management AS | 27,463 | $8.96M | 0.04% | +166+0.6% | Added |
| Atika Capital Management LLC | 27,700 | $9.03M | 0.94% | +27,700 | New |
| Fiera Capital Corp | 27,743 | $9.05M | 0.03% | +10,531+61.2% | Added |
| China Universal Asset Management Co., Ltd. | 27,817 | $9.07M | 0.85% | −3,154−10.2% | Reduced |
| Polymer Capital Management (HK) LTD | 28,869 | $9.41M | 1.47% | +11,065+62.1% | Added |
| Iron Triangle Partners LP | 29,339 | $9.57M | 1.51% | −36,070−55.1% | Reduced |
| Brown Advisory Inc | 29,471 | $9.61M | 0.01% | −1,914−6.1% | Reduced |
| Erste Asset Management GmbH | 29,810 | $9.62M | 0.08% | +6,500+27.9% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 30,015 | $9.79M | 0.09% | +3,100+11.5% | Added |
| STRS Ohio | 30,140 | $9.83M | 0.04% | +1,323+4.6% | Added |
| AIA Group Ltd | 30,232 | $9.86M | 0.21% | +3,741+14.1% | Added |
| LPL Financial LLC | 30,339 | $9.89M | 0.00% | +9,660+46.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 30,751 | $10.0M | 0.02% | −26,368−46.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 31,402 | $10.2M | 0.02% | +15,569+98.3% | Added |
| Investment Management Corp of Ontario | 31,521 | $10.3M | 0.15% | +8,244+35.4% | Added |
| Rafferty Asset Management, LLC | 32,196 | $10.5M | 0.03% | −12,389−27.8% | Reduced |
| AMF Pensionsforsakring AB | 32,537 | $10.6M | 0.07% | +32,537 | New |
| Engineers Gate Manager LP | 32,630 | $10.6M | 0.13% | +7,238+28.5% | Added |
| Teachers Retirement System of the State of Kentucky | 33,218 | $10.8M | 0.09% | +505+1.5% | Added |
| Rosenblum Silverman Sutton S F Inc | 34,392 | $11.2M | 2.72% | −240−0.7% | Reduced |
| Canada Pension Plan Investment Board | 35,520 | $11.6M | 0.01% | −25,012−41.3% | Reduced |
| Oddo BHF Asset Management SAS | 35,940 | $11.7M | 0.45% | +16,119+81.3% | Added |
| Teacher Retirement System of Texas | 36,408 | $11.9M | 0.05% | +1,123+3.2% | Added |
| Parnassus Investments | 37,412 | $12.2M | 0.03% | +37,412 | New |