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 2021
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 2021. 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
- 407
- +10 vs. Q2 2021
- Shares held
- 111.7M
- +29.7K (0.0%) vs. Q2 2021
- Total value
- $21.1B
- +$2.15B (+11.4%) vs. Q2 2021
- New holders
- 51
- 155 more added
- Sold out
- 41
- 121 more reduced
4 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dodge & Cox | 5,372,100 | $1.01B | 0.66% | −41,901−0.8% | Reduced |
| Price T Rowe Associates Inc | 5,874,235 | $1.11B | 0.10% | +349,557+6.3% | Added |
| Wellington Management Group LLP | 7,371,072 | $1.39B | 0.24% | −1,807,417−19.7% | Reduced |
| BlackRock Inc. | 8,920,972 | $1.68B | 0.05% | +224,569+2.6% | Added |
| Baillie Gifford & Co | 10,415,784 | $1.97B | 1.03% | +190,925+1.9% | Added |
| Vanguard Group Inc | 10,614,582 | $2.00B | 0.05% | +116,888+1.1% | Added |
| FMR LLC | 17,826,928 | $3.37B | 0.27% | +195,199+1.1% | Added |
| Marshall Wace North America L.P. | 0 | $0 | 0.00% | −108,585−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −84,800−100.0% | Sold out |
| Sector Gamma AS | 0 | $0 | 0.00% | −58,017−100.0% | Sold out |
| Frontier Capital Management Co LLC | 0 | $0 | 0.00% | −45,822−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −31,999−100.0% | Sold out |
| Evolutionary Tree Capital Management, LLC | 0 | $0 | 0.00% | −29,870−100.0% | Sold out |
| EFG Asset Management (Americas) Corp. | 0 | $0 | 0.00% | −26,187−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −23,458−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −18,968−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −17,916−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −16,500−100.0% | Sold out |
| PEAK6 Investments LLC | 0 | $0 | 0.00% | −14,820−100.0% | Sold out |
| Pinpoint Asset Management Ltd | 0 | $0 | 0.00% | −13,100−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −8,964−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −8,811−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −7,592−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −3,602−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −3,283−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −3,092−100.0% | Sold out |
| BP PLC | 0 | $0 | 0.00% | −2,921−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −2,732−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,664−100.0% | Sold out |
| Fifth Third Bancorp | 0 | $0 | 0.00% | −2,341−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,066−100.0% | Sold out |
| J.P. Marvel Investment Advisors, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −1,947−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| SkyOak Wealth, LLC | 0 | $0 | 0.00% | −1,681−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −1,525−100.0% | Sold out |
| Security National Bank of Sioux City Iowa | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Quantitative Systematic Strategies LLC | 0 | $0 | 0.00% | −1,480−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −1,376−100.0% | Sold out |
| United Capital Financial Advisers, LLC | 0 | $0 | 0.00% | −1,387−100.0% | Sold out |
| Brookstone Capital Management | 0 | $0 | 0.00% | −1,164−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Credit Agricole S A | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Savior LLC | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| Enterprise Financial Services Corp | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Standard Family Office LLC | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Pictet Asset Management Ltd | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| QS Investors, LLC | – | – | – | – | Not filed |
| First Horizon Corp | – | – | – | – | Not filed |