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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, Q1 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2023. 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
478
0 vs. Q4 2022
Shares held
119.6M
+131.7K (+0.1%) vs. Q4 2022
Total value
$24.0B
−$4.42B (−15.6%) vs. Q4 2022
New holders
53
174 more added
Sold out
53
170 more reduced

11 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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.

Institutional holdersQ1 2023: 478 institutions
Q1 2021: 391 institutionsQ2 2021: 401 institutionsQ3 2021: 407 institutionsQ4 2021: 435 institutionsQ1 2022: 443 institutionsQ2 2022: 424 institutionsQ3 2022: 497 institutionsQ4 2022: 489 institutionsQ1 2023: 478 institutionsQ2 2023: 477 institutionsQ3 2023: 454 institutionsQ4 2023: 501 institutionsQ1 2024: 499 institutionsQ2 2024: 525 institutionsQ3 2024: 569 institutionsQ4 2024: 594 institutionsQ1 2025: 625 institutionsQ2 2025: 653 institutionsQ3 2025: 823 institutionsQ4 2025: 852 institutionsQ1 2026: 793 institutionsQ2 2026: 794 institutions
Value heldQ1 2023: $24.0B
Q1 2021: $15.4BQ2 2021: $19.0BQ3 2021: $21.1BQ4 2021: $19.0BQ1 2022: $18.6BQ2 2022: $16.6BQ3 2022: $26.7BQ4 2022: $28.4BQ1 2023: $24.0BQ2 2023: $22.5BQ3 2023: $20.9BQ4 2023: $22.4BQ1 2024: $17.2BQ2 2024: $29.1BQ3 2024: $34.1BQ4 2024: $30.1BQ1 2025: $34.8BQ2 2025: $43.1BQ3 2025: $59.2BQ4 2025: $52.7BQ1 2026: $43.4BQ2 2026: $40.1B
Institutions holding ALNY and their total value by quarter
QuarterHoldersValue
Q2 2026794$40.1B
Q1 2026793$43.4B
Q4 2025852$52.7B
Q3 2025823$59.2B
Q2 2025653$43.1B
Q1 2025625$34.8B
Q4 2024594$30.1B
Q3 2024569$34.1B
Q2 2024525$29.1B
Q1 2024499$17.2B
Q4 2023501$22.4B
Q3 2023454$20.9B
Q2 2023477$22.5B
Q1 2023478$24.0B
Q4 2022489$28.4B
Q3 2022497$26.7B
Q2 2022424$16.6B
Q1 2022443$18.6B
Q4 2021435$19.0B
Q3 2021407$21.1B
Q2 2021401$19.0B
Q1 2021391$15.4B

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2022.

Institutions holding ALNY in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Paloma Partners Management Co531$106.4K0.02%+531New
Itau Unibanco Holding S.A.570$114.2K0.01%−3−0.5%Reduced
Lazard Asset Management LLC589$117.0K0.00%+99+20.2%Added
Cutler Group LP600$120.0K0.02%+600New
Tower Research Capital LLC (TRC)676$135.0K0.00%−620−47.8%Reduced
Centaurus Financial, Inc.752$151.0K0.01%+11+1.5%Added
Leonteq Securities AG807$161.7K0.01%+194+31.6%Added
Ossiam837$167.7K0.00%−30−3.5%Reduced
Ellevest, Inc.869$174.1K0.01%−230−20.9%Reduced
Spire Wealth Management896$179.5K0.01%+224+33.3%Added
Advisors Asset Management, Inc.951$190.5K0.00%−5−0.5%Reduced
TD Waterhouse Canada Inc.931$190.6K0.00%−4−0.4%Reduced
Wilbanks Smith & Thomas Asset Management LLC1,000$200.3K0.01%00.0%Unchanged
NJ State Employees Deferred Compensation Plan1,000$200.3K0.03%00.0%Unchanged
Westmount Partners, LLC1,000$200.3K0.09%00.0%Unchanged
Gsa Capital Partners LLP1,042$209.0K0.02%+1,042New
Thrivent Financial for Lutherans1,049$210.0K0.00%00.0%Unchanged
Cubist Systematic Strategies, LLC1,058$211.9K0.00%−12,414−92.1%Reduced
Kestra Advisory Services, LLC1,066$213.5K0.00%−1,272−54.4%Reduced
Simplify Asset Management Inc.1,072$214.7K0.04%−320−23.0%Reduced
Fort Sheridan Advisors LLC1,078$215.9K0.05%+1,078New
First Republic Investment Management, Inc.1,090$218.3K0.00%+1,090New
SlateStone Wealth, LLC1,100$220.0K0.05%00.0%Unchanged
EP Wealth Advisors, LLC1,106$221.6K0.00%−10−0.9%Reduced
Altfest L J & Co Inc1,127$226.0K0.04%−11−1.0%Reduced
Crossmark Global Holdings, Inc.1,134$227.0K0.01%+107+10.4%Added
Peregrine Capital Management LLC1,147$229.8K0.01%00.0%Unchanged
Nebula Research & Development LLC1,162$232.8K0.41%+1,162New
Gateway Advisory, LLC1,180$236.0K0.05%+17+1.5%Added
Cetera Investment Advisers1,187$237.8K0.00%+24+2.1%Added
Coastline Trust Co1,200$240.4K0.04%00.0%Unchanged
Meiji Yasuda Asset Management Co Ltd.1,220$244.0K0.01%+50+4.3%Added
Meridian Financial, LLC1,234$247.2K0.24%+1,234New
Bridgewater Associates, LP1,255$251.4K0.00%+1,255New
Echo Street Capital Management LLC1,282$256.8K0.00%+1,282New
Ieq Capital, LLC1,305$261.4K0.01%−142−9.8%Reduced
Virtus ETF Advisers LLC1,317$263.8K0.15%+24+1.9%Added
Cigna Investments Inc1,322$265.0K0.05%−36−2.7%Reduced
Truist Financial Corp1,328$266.0K0.00%−140−9.5%Reduced
Symmetry Partners, LLC1,331$267.0K0.01%00.0%Unchanged
Empowered Funds, LLC1,335$267.4K0.02%+156+13.2%Added
Wetherby Asset Management Inc1,362$272.8K0.02%−123−8.3%Reduced
DCF Advisers, LLC1,400$280.4K0.21%00.0%Unchanged
Abbrea Capital, LLC1,425$285.0K0.05%−150−9.5%Reduced
Yousif Capital Management, LLC1,427$285.9K0.00%+50+3.6%Added
Signaturefd, LLC1,445$289.5K0.01%−159−9.9%Reduced
Fund Management at Engine No. 1 LLC1,492$298.9K0.06%+137+10.1%Added
Nixon Peabody Trust Co1,500$300.5K0.21%00.0%Unchanged
High Net Worth Advisory Group LLC1,500$300.5K0.12%00.0%Unchanged
Los Angeles Capital Management LLC1,507$301.9K0.00%−560−27.1%Reduced
Ethic Inc.1,518$304.1K0.01%−391−20.5%Reduced
Clearstead Advisors, LLC1,518$304.1K0.02%+10+0.7%Added
Two Sigma Securities, LLC1,521$304.7K0.03%−2,467−61.9%Reduced
North Star Asset Management Inc1,540$308.5K0.02%00.0%Unchanged
Marex Group plc1,573$315.1K0.04%+581+58.6%Added
Ci Investments Inc.1,630$327.0K0.00%+891+120.6%Added
Mutual of America Capital Management LLC1,633$327.1K0.00%00.0%Unchanged
Cetera Advisor Networks LLC1,647$329.9K0.00%+9+0.5%Added
Beacon Pointe Advisors, LLC1,706$341.7K0.01%−84−4.7%Reduced
Bleakley Financial Group, LLC1,709$342.3K0.01%−197−10.3%Reduced
Sawtooth Solutions, LLC1,709$342.3K0.01%+559+48.6%Added
CWM, LLC1,726$346.0K0.00%−193−10.1%Reduced
Teza Capital Management LLC1,735$347.6K0.07%+1,735New
Prelude Capital Management, LLC1,788$358.2K0.02%+1,788New
Cohen Lawrence B1,800$360.6K0.24%00.0%Unchanged
American International Group, Inc.1,829$366.4K0.00%−54−2.9%Reduced
Boston Private Wealth LLC1,845$369.7K0.01%−204−10.0%Reduced
JGP Global Gestao de Recursos Ltda.1,892$379.0K0.43%+159+9.2%Added
Regal Investment Advisors LLC1,942$389.0K0.03%+1,942New
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,965$393.6K0.00%00.0%Unchanged
Segall Bryant & Hamill, LLC2,000$400.0K0.00%00.0%Unchanged
Aquila Investment Management LLC2,000$400.6K0.33%00.0%Unchanged
E. Ohman J:or Asset Management AB2,000$400.6K0.02%+2,000New
Aureus Asset Management, LLC2,035$407.7K0.03%−528−20.6%Reduced
Glenmede Trust Co NA2,037$408.1K0.00%+2+0.1%Added
Duality Advisers, LP2,051$410.9K0.05%+2,051New
E Fund Management Co., Ltd.2,115$424.0K0.03%+287+15.7%Added
Monograph Wealth Advisors, LLC2,126$425.9K0.10%−16−0.7%Reduced
Captrust Financial Advisors2,185$437.7K0.00%+570+35.3%Added
Souders Financial Advisors2,236$447.9K0.10%+57+2.6%Added
Veriti Management LLC2,287$458.1K0.05%−183−7.4%Reduced
Seven Eight Capital, LP2,320$464.7K0.10%+2,320New
Illinois Municipal Retirement Fund2,381$477.0K0.01%+2,381New
Integrated Wealth Concepts LLC2,406$482.0K0.01%+2,406New
Brinker Capital Investments, LLC2,484$497.6K0.01%−28−1.1%Reduced
Orion Portfolio Solutions, LLC2,484$497.6K0.01%+1,464+143.5%Added
New York Life Investment Management LLC2,503$501.4K0.01%+90+3.7%Added
Quintet Private Bank (Europe) S.A.2,520$504.9K0.03%+2,520New
La Banque Postale Asset Management SA2,536$508.0K0.01%−178−6.6%Reduced
Prudential Financial Inc3,494$518.0K0.00%−1,085−23.7%Reduced
MML Investors Services, LLC2,662$533.0K0.00%+250+10.4%Added
Steel Peak Wealth Management LLC2,695$539.9K0.04%+276+11.4%Added
Azzad Asset Management Inc2,714$543.8K0.08%+19+0.7%Added
Fosun International Ltd2,730$546.9K0.05%+2,730New
Harbor Capital Advisors, Inc.2,738$548.5K0.16%+2,363+630.1%Added
Greenleaf Trust2,760$552.9K0.01%+61+2.3%Added
Banque Cantonale Vaudoise2,800$561.0K0.03%00.0%Unchanged
Vestcor Inc2,833$568.0K0.02%−12−0.4%Reduced
Tokio Marine Asset Management Co Ltd2,867$574.3K0.04%+474+19.8%Added
Alberta Investment Management Corp2,900$580.9K0.01%+2,900New