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 |
|---|---|---|---|---|---|
| IFM Investors Pty Ltd | 29,661 | $8.93M | 0.06% | +2,395+8.8% | Added |
| Panagora Asset Management Inc | 29,562 | $8.90M | 0.03% | +19,219+185.8% | Added |
| CIBC Asset Management Inc | 29,342 | $8.83M | 0.02% | −130−0.4% | Reduced |
| Swiss Life Asset Management Ltd | 29,327 | $8.83M | 0.04% | +5,593+23.6% | Added |
| Capital International Ltd | 29,166 | $8.78M | 0.29% | +88+0.3% | Added |
| Frontier Capital Management Co LLC | 29,056 | $8.75M | 0.08% | −1,548−5.1% | Reduced |
| Mariner, LLC | 28,021 | $8.43M | 0.01% | −1,927−6.4% | Reduced |
| EFG International AG | 27,104 | $8.16M | 0.15% | +1,539+6.0% | Added |
| Liontrust Investment Partners LLP | 26,759 | $8.06M | 0.12% | +8,541+46.9% | Added |
| Nordea Investment Management AB | 26,913 | $8.03M | 0.01% | +13,567+101.7% | Added |
| Daiwa Securities Group Inc. | 25,904 | $7.80M | 0.02% | +540+2.1% | Added |
| Capital International Inc | 25,671 | $7.73M | 0.05% | +121+0.5% | Added |
| China Universal Asset Management Co., Ltd. | 25,269 | $7.61M | 0.45% | −1,997−7.3% | Reduced |
| Portman Square Capital LLP | 25,016 | $7.53M | 1.28% | +8,092+47.8% | Added |
| SG Americas Securities, LLC | 24,911 | $7.50M | 0.00% | −30,149−54.8% | Reduced |
| Ossiam | 24,821 | $7.47M | 0.10% | +638+2.6% | Added |
| Illinois Municipal Retirement Fund | 24,275 | $7.31M | 0.08% | −20−0.1% | Reduced |
| CI Private Wealth, LLC | 23,969 | $7.22M | 0.01% | −1,749−6.8% | Reduced |
| Cetera Investment Advisers | 23,196 | $6.98M | 0.01% | +23+0.1% | Added |
| Eurizon Capital SGR S.p.A. | 22,698 | $6.83M | 0.02% | −1,486−6.1% | Reduced |
| Quadrature Capital Ltd | 22,653 | $6.82M | 0.06% | −62,588−73.4% | Reduced |
| PensionDanmark Pensionsforsikringsaktieselskab | 22,451 | $6.76M | 0.06% | −12,119−35.1% | Reduced |
| Toronto Dominion Bank | 22,215 | $6.69M | 0.01% | +3,613+19.4% | Added |
| Creative Planning | 22,168 | $6.67M | 0.00% | −1,954−8.1% | Reduced |
| Jefferies Financial Group Inc. | 22,095 | $6.65M | 0.06% | −3,458−13.5% | Reduced |
| Macquarie Group Ltd | 20,943 | $6.30M | 0.03% | +4,896+30.5% | Added |
| Catalyst Funds Management Pty Ltd | 20,803 | $6.26M | 0.35% | +20,803 | New |
| KBC Group NV | 20,408 | $6.14M | 0.01% | −116−0.6% | Reduced |
| Utah Retirement Systems | 20,236 | $6.09M | 0.06% | −365−1.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 20,056 | $6.04M | 0.05% | +403+2.1% | Added |
| British Columbia Investment Management Corp | 19,895 | $5.99M | 0.04% | +1,687+9.3% | Added |
| Oppenheimer Asset Management Inc. | 19,608 | $5.90M | 0.06% | −234−1.2% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 18,366 | $5.53M | 0.04% | +2,423+15.2% | Added |
| Himension Fund | 18,136 | $5.46M | 0.33% | +4,967+37.7% | Added |
| Silvant Capital Management LLC | 18,126 | $5.46M | 0.16% | −132−0.7% | Reduced |
| Teacher Retirement System of Texas | 18,125 | $5.46M | 0.01% | −705−3.7% | Reduced |
| Slow Capital, Inc. | 17,697 | $5.33M | 0.62% | +236+1.4% | Added |
| iA Global Asset Management Inc. | 17,693 | $5.33M | 0.06% | +1,771+11.1% | Added |
| Rakuten Investment Management, Inc. | 17,961 | $5.27M | 0.02% | +3,530+24.5% | Added |
| Rhenman & Partners Asset Management AB | 17,200 | $5.18M | 0.49% | −17,265−50.1% | Reduced |
| Kornitzer Capital Management Inc | 17,124 | $5.15M | 0.11% | +17,124 | New |
| OrbiMed Advisors LLC | 17,000 | $5.12M | 0.10% | −102,000−85.7% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 16,575 | $4.98M | 0.01% | +3,294+24.8% | Added |
| Elo Mutual Pension Insurance Co | 16,446 | $4.95M | 0.06% | +1,825+12.5% | Added |
| Cerity Partners LLC | 16,252 | $4.89M | 0.01% | −4,004−19.8% | Reduced |
| Hantz Financial Services, Inc. | 15,883 | $4.78M | 0.06% | −1,790−10.1% | Reduced |
| Aquatic Capital Management LLC | 15,480 | $4.66M | 0.16% | −15,581−50.2% | Reduced |
| Ieq Capital, LLC | 15,410 | $4.64M | 0.02% | −7,461−32.6% | Reduced |
| OP Asset Management Ltd | 15,107 | $4.55M | 0.05% | −8,370−35.7% | Reduced |
| Shelton Capital Management | 14,556 | $4.38M | 0.08% | −281−1.9% | Reduced |
| Assetmark, Inc | 14,330 | $4.31M | 0.01% | +123+0.9% | Added |
| Twinbeech Capital LP | 14,325 | $4.31M | 0.78% | +14,325 | New |
| La Banque Postale Asset Management SA | 14,206 | $4.28M | 0.04% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 13,844 | $4.17M | 0.03% | +13,005+1,550.1% | Added |
| Profund Advisors LLC | 13,814 | $4.16M | 0.11% | −833−5.7% | Reduced |
| Martingale Asset Management L P | 13,634 | $4.10M | 0.10% | +3,520+34.8% | Added |
| Capula Management Ltd | 13,203 | $3.97M | 0.02% | +88+0.7% | Added |
| Raiffeisen Bank International AG | 13,510 | $3.97M | 0.05% | +3,097+29.7% | Added |
| Empire Life Investments Inc. | 12,640 | $3.81M | 0.21% | −575−4.4% | Reduced |
| Fred Alger Management, LLC | 12,597 | $3.79M | 0.01% | 00.0% | Unchanged |
| Ilmarinen Mutual Pension Insurance Co | 12,500 | $3.76M | 0.03% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 12,445 | $3.75M | 0.01% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 12,193 | $3.67M | 0.00% | −129−1.0% | Reduced |
| CenterBook Partners LP | 12,173 | $3.66M | 0.18% | +12,173 | New |
| Blair William & Co | 11,853 | $3.57M | 0.01% | +2,423+25.7% | Added |
| Simplex Trading, LLC | 11,567 | $3.48M | 0.09% | +11,567 | New |
| JustInvest LLC | 11,436 | $3.44M | 0.03% | −779−6.4% | Reduced |
| Privium Fund Management B.V. | 11,372 | $3.42M | 0.63% | −850−7.0% | Reduced |
| Campbell & CO Investment Adviser LLC | 11,183 | $3.37M | 0.18% | +11,183 | New |
| Oddo BHF Asset Management SAS | 11,074 | $3.33M | 0.15% | −21,939−66.5% | Reduced |
| Jane Street Group, LLC | 11,016 | $3.32M | 0.00% | +5,114+86.6% | Added |
| Cullen/Frost Bankers, Inc. | 10,977 | $3.30M | 0.03% | −22−0.2% | Reduced |
| Sphera Funds Management Ltd. | 10,800 | $3.25M | 0.47% | +10,800 | New |
| Credit Agricole S A | 10,731 | $3.23M | 0.01% | −1,020−8.7% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 10,591 | $3.19M | 0.03% | +2,116+25.0% | Added |
| Captrust Financial Advisors | 10,460 | $3.15M | 0.00% | −2,043−16.3% | Reduced |
| Traynor Capital Management, Inc. | 10,458 | $3.15M | 0.15% | −2,134−16.9% | Reduced |
| Amalgamated Bank | 10,313 | $3.10M | 0.02% | +376+3.8% | Added |
| Financiere des Professionnels - Fonds d,investissement inc. | 10,141 | $3.05M | 0.17% | +7,452+277.1% | Added |
| Gulf International Bank (UK) Ltd | 10,046 | $3.02M | 0.06% | −151−1.5% | Reduced |
| Harvest Fund Management Co., Ltd | 9,981 | $3.00M | 0.10% | +127+1.3% | Added |
| Virtus Investment Advisers, Inc. | 9,953 | $3.00M | 0.70% | +2,482+33.2% | Added |
| MML Investors Services, LLC | 9,949 | $3.00M | 0.01% | −5,533−35.7% | Reduced |
| Commonwealth Equity Services, LLC | 9,815 | $2.95M | 0.00% | −762−7.2% | Reduced |
| Mutual of America Capital Management LLC | 9,690 | $2.92M | 0.03% | +738+8.2% | Added |
| Wealthfront Advisers LLC | 9,554 | $2.88M | 0.01% | −2,033−17.5% | Reduced |
| Fifth Third Bancorp | 9,501 | $2.86M | 0.00% | −67−0.7% | Reduced |
| Commerce Bank | 9,461 | $2.85M | 0.01% | −19−0.2% | Reduced |
| Havemeyer Place LP | 9,415 | $2.83M | 0.28% | +6,537+227.1% | Added |
| Janney Montgomery Scott LLC | 9,327 | $2.81M | 0.01% | −12−0.1% | Reduced |
| Saudi Central Bank | 9,284 | $2.79M | 0.04% | +4,408+90.4% | Added |
| Motley Fool Asset Management LLC | 9,170 | $2.76M | 0.11% | −1,322−12.6% | Reduced |
| Ci Investments Inc. | 9,157 | $2.76M | 0.01% | +5,546+153.6% | Added |
| Nisa Investment Advisors, LLC | 9,139 | $2.75M | 0.01% | −218−2.3% | Reduced |
| NewEdge Wealth, LLC | 9,094 | $2.74M | 0.03% | −107−1.2% | Reduced |
| Louisiana State Employees Retirement System | 8,600 | $2.59M | 0.04% | −100−1.1% | Reduced |
| Federation des caisses Desjardins du Quebec | 8,591 | $2.59M | 0.01% | −3,140−26.8% | Reduced |
| Zacks Investment Management | 8,417 | $2.53M | 0.02% | +560+7.1% | Added |
| Employees Retirement System of Texas | 8,403 | $2.53M | 0.02% | 00.0% | Unchanged |
| Nomura Holdings Inc | 8,336 | $2.51M | 0.01% | −5,963−41.7% | Reduced |