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 |
|---|---|---|---|---|---|
| Nisa Investment Advisors, LLC | 9,139 | $2.75M | 0.01% | −218−2.3% | Reduced |
| Ci Investments Inc. | 9,157 | $2.76M | 0.01% | +5,546+153.6% | Added |
| Motley Fool Asset Management LLC | 9,170 | $2.76M | 0.11% | −1,322−12.6% | Reduced |
| Saudi Central Bank | 9,284 | $2.79M | 0.04% | +4,408+90.4% | Added |
| Janney Montgomery Scott LLC | 9,327 | $2.81M | 0.01% | −12−0.1% | Reduced |
| Havemeyer Place LP | 9,415 | $2.83M | 0.28% | +6,537+227.1% | Added |
| Commerce Bank | 9,461 | $2.85M | 0.01% | −19−0.2% | Reduced |
| Fifth Third Bancorp | 9,501 | $2.86M | 0.00% | −67−0.7% | Reduced |
| Wealthfront Advisers LLC | 9,554 | $2.88M | 0.01% | −2,033−17.5% | Reduced |
| Mutual of America Capital Management LLC | 9,690 | $2.92M | 0.03% | +738+8.2% | Added |
| Commonwealth Equity Services, LLC | 9,815 | $2.95M | 0.00% | −762−7.2% | Reduced |
| MML Investors Services, LLC | 9,949 | $3.00M | 0.01% | −5,533−35.7% | Reduced |
| Virtus Investment Advisers, Inc. | 9,953 | $3.00M | 0.70% | +2,482+33.2% | Added |
| Harvest Fund Management Co., Ltd | 9,981 | $3.00M | 0.10% | +127+1.3% | Added |
| Gulf International Bank (UK) Ltd | 10,046 | $3.02M | 0.06% | −151−1.5% | Reduced |
| Financiere des Professionnels - Fonds d,investissement inc. | 10,141 | $3.05M | 0.17% | +7,452+277.1% | Added |
| Amalgamated Bank | 10,313 | $3.10M | 0.02% | +376+3.8% | Added |
| Traynor Capital Management, Inc. | 10,458 | $3.15M | 0.15% | −2,134−16.9% | Reduced |
| Captrust Financial Advisors | 10,460 | $3.15M | 0.00% | −2,043−16.3% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 10,591 | $3.19M | 0.03% | +2,116+25.0% | Added |
| Credit Agricole S A | 10,731 | $3.23M | 0.01% | −1,020−8.7% | Reduced |
| Sphera Funds Management Ltd. | 10,800 | $3.25M | 0.47% | +10,800 | New |
| Cullen/Frost Bankers, Inc. | 10,977 | $3.30M | 0.03% | −22−0.2% | Reduced |
| Jane Street Group, LLC | 11,016 | $3.32M | 0.00% | +5,114+86.6% | Added |
| Oddo BHF Asset Management SAS | 11,074 | $3.33M | 0.15% | −21,939−66.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 11,183 | $3.37M | 0.18% | +11,183 | New |
| Privium Fund Management B.V. | 11,372 | $3.42M | 0.63% | −850−7.0% | Reduced |
| JustInvest LLC | 11,436 | $3.44M | 0.03% | −779−6.4% | Reduced |
| Simplex Trading, LLC | 11,567 | $3.48M | 0.09% | +11,567 | New |
| Blair William & Co | 11,853 | $3.57M | 0.01% | +2,423+25.7% | Added |
| CenterBook Partners LP | 12,173 | $3.66M | 0.18% | +12,173 | New |
| The PNC Financial Services Group, Inc. | 12,193 | $3.67M | 0.00% | −129−1.0% | Reduced |
| Public Employees Retirement Association of Colorado | 12,445 | $3.75M | 0.01% | 00.0% | Unchanged |
| Ilmarinen Mutual Pension Insurance Co | 12,500 | $3.76M | 0.03% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 12,597 | $3.79M | 0.01% | 00.0% | Unchanged |
| Empire Life Investments Inc. | 12,640 | $3.81M | 0.21% | −575−4.4% | Reduced |
| Raiffeisen Bank International AG | 13,510 | $3.97M | 0.05% | +3,097+29.7% | Added |
| Capula Management Ltd | 13,203 | $3.97M | 0.02% | +88+0.7% | Added |
| Martingale Asset Management L P | 13,634 | $4.10M | 0.10% | +3,520+34.8% | Added |
| Profund Advisors LLC | 13,814 | $4.16M | 0.11% | −833−5.7% | Reduced |
| SRS Capital Advisors, Inc. | 13,844 | $4.17M | 0.03% | +13,005+1,550.1% | Added |
| La Banque Postale Asset Management SA | 14,206 | $4.28M | 0.04% | 00.0% | Unchanged |
| Twinbeech Capital LP | 14,325 | $4.31M | 0.78% | +14,325 | New |
| Assetmark, Inc | 14,330 | $4.31M | 0.01% | +123+0.9% | Added |
| Shelton Capital Management | 14,556 | $4.38M | 0.08% | −281−1.9% | Reduced |
| OP Asset Management Ltd | 15,107 | $4.55M | 0.05% | −8,370−35.7% | Reduced |
| Ieq Capital, LLC | 15,410 | $4.64M | 0.02% | −7,461−32.6% | Reduced |
| Aquatic Capital Management LLC | 15,480 | $4.66M | 0.16% | −15,581−50.2% | Reduced |
| Hantz Financial Services, Inc. | 15,883 | $4.78M | 0.06% | −1,790−10.1% | Reduced |
| Cerity Partners LLC | 16,252 | $4.89M | 0.01% | −4,004−19.8% | Reduced |
| Elo Mutual Pension Insurance Co | 16,446 | $4.95M | 0.06% | +1,825+12.5% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 16,575 | $4.98M | 0.01% | +3,294+24.8% | Added |
| OrbiMed Advisors LLC | 17,000 | $5.12M | 0.10% | −102,000−85.7% | Reduced |
| Kornitzer Capital Management Inc | 17,124 | $5.15M | 0.11% | +17,124 | New |
| Rhenman & Partners Asset Management AB | 17,200 | $5.18M | 0.49% | −17,265−50.1% | Reduced |
| Rakuten Investment Management, Inc. | 17,961 | $5.27M | 0.02% | +3,530+24.5% | Added |
| iA Global Asset Management Inc. | 17,693 | $5.33M | 0.06% | +1,771+11.1% | Added |
| Slow Capital, Inc. | 17,697 | $5.33M | 0.62% | +236+1.4% | Added |
| Teacher Retirement System of Texas | 18,125 | $5.46M | 0.01% | −705−3.7% | Reduced |
| Silvant Capital Management LLC | 18,126 | $5.46M | 0.16% | −132−0.7% | Reduced |
| Himension Fund | 18,136 | $5.46M | 0.33% | +4,967+37.7% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 18,366 | $5.53M | 0.04% | +2,423+15.2% | Added |
| Oppenheimer Asset Management Inc. | 19,608 | $5.90M | 0.06% | −234−1.2% | Reduced |
| British Columbia Investment Management Corp | 19,895 | $5.99M | 0.04% | +1,687+9.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 20,056 | $6.04M | 0.05% | +403+2.1% | Added |
| Utah Retirement Systems | 20,236 | $6.09M | 0.06% | −365−1.8% | Reduced |
| KBC Group NV | 20,408 | $6.14M | 0.01% | −116−0.6% | Reduced |
| Catalyst Funds Management Pty Ltd | 20,803 | $6.26M | 0.35% | +20,803 | New |
| Macquarie Group Ltd | 20,943 | $6.30M | 0.03% | +4,896+30.5% | Added |
| Jefferies Financial Group Inc. | 22,095 | $6.65M | 0.06% | −3,458−13.5% | Reduced |
| Creative Planning | 22,168 | $6.67M | 0.00% | −1,954−8.1% | Reduced |
| Toronto Dominion Bank | 22,215 | $6.69M | 0.01% | +3,613+19.4% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 22,451 | $6.76M | 0.06% | −12,119−35.1% | Reduced |
| Quadrature Capital Ltd | 22,653 | $6.82M | 0.06% | −62,588−73.4% | Reduced |
| Eurizon Capital SGR S.p.A. | 22,698 | $6.83M | 0.02% | −1,486−6.1% | Reduced |
| Cetera Investment Advisers | 23,196 | $6.98M | 0.01% | +23+0.1% | Added |
| CI Private Wealth, LLC | 23,969 | $7.22M | 0.01% | −1,749−6.8% | Reduced |
| Illinois Municipal Retirement Fund | 24,275 | $7.31M | 0.08% | −20−0.1% | Reduced |
| Ossiam | 24,821 | $7.47M | 0.10% | +638+2.6% | Added |
| SG Americas Securities, LLC | 24,911 | $7.50M | 0.00% | −30,149−54.8% | Reduced |
| Portman Square Capital LLP | 25,016 | $7.53M | 1.28% | +8,092+47.8% | Added |
| China Universal Asset Management Co., Ltd. | 25,269 | $7.61M | 0.45% | −1,997−7.3% | Reduced |
| Capital International Inc | 25,671 | $7.73M | 0.05% | +121+0.5% | Added |
| Daiwa Securities Group Inc. | 25,904 | $7.80M | 0.02% | +540+2.1% | Added |
| Nordea Investment Management AB | 26,913 | $8.03M | 0.01% | +13,567+101.7% | Added |
| Liontrust Investment Partners LLP | 26,759 | $8.06M | 0.12% | +8,541+46.9% | Added |
| EFG International AG | 27,104 | $8.16M | 0.15% | +1,539+6.0% | Added |
| Mariner, LLC | 28,021 | $8.43M | 0.01% | −1,927−6.4% | Reduced |
| Frontier Capital Management Co LLC | 29,056 | $8.75M | 0.08% | −1,548−5.1% | Reduced |
| Capital International Ltd | 29,166 | $8.78M | 0.29% | +88+0.3% | Added |
| Swiss Life Asset Management Ltd | 29,327 | $8.83M | 0.04% | +5,593+23.6% | Added |
| CIBC Asset Management Inc | 29,342 | $8.83M | 0.02% | −130−0.4% | Reduced |
| Panagora Asset Management Inc | 29,562 | $8.90M | 0.03% | +19,219+185.8% | Added |
| IFM Investors Pty Ltd | 29,661 | $8.93M | 0.06% | +2,395+8.8% | Added |
| GF Fund Management Co. Ltd. | 29,770 | $8.96M | 0.11% | −271−0.9% | Reduced |
| Xponance, Inc. | 30,242 | $9.10M | 0.06% | +371+1.2% | Added |
| Lazard Asset Management LLC | 30,323 | $9.13M | 0.01% | +14,043+86.3% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 30,675 | $9.23M | 0.01% | −4,106−11.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 30,696 | $9.24M | 0.06% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 31,112 | $9.37M | 0.05% | −40,655−56.6% | Reduced |