Skip to main content

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
Monograph Wealth Advisors, LLC2,126$425.9K0.10%−16−0.7%Reduced
E Fund Management Co., Ltd.2,115$424.0K0.03%+287+15.7%Added
Duality Advisers, LP2,051$410.9K0.05%+2,051New
Glenmede Trust Co NA2,037$408.1K0.00%+2+0.1%Added
Aureus Asset Management, LLC2,035$407.7K0.03%−528−20.6%Reduced
Aquila Investment Management LLC2,000$400.6K0.33%00.0%Unchanged
E. Ohman J:or Asset Management AB2,000$400.6K0.02%+2,000New
Segall Bryant & Hamill, LLC2,000$400.0K0.00%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,965$393.6K0.00%00.0%Unchanged
Regal Investment Advisors LLC1,942$389.0K0.03%+1,942New
JGP Global Gestao de Recursos Ltda.1,892$379.0K0.43%+159+9.2%Added
Boston Private Wealth LLC1,845$369.7K0.01%−204−10.0%Reduced
American International Group, Inc.1,829$366.4K0.00%−54−2.9%Reduced
Cohen Lawrence B1,800$360.6K0.24%00.0%Unchanged
Prelude Capital Management, LLC1,788$358.2K0.02%+1,788New
Teza Capital Management LLC1,735$347.6K0.07%+1,735New
CWM, LLC1,726$346.0K0.00%−193−10.1%Reduced
Bleakley Financial Group, LLC1,709$342.3K0.01%−197−10.3%Reduced
Sawtooth Solutions, LLC1,709$342.3K0.01%+559+48.6%Added
Beacon Pointe Advisors, LLC1,706$341.7K0.01%−84−4.7%Reduced
Cetera Advisor Networks LLC1,647$329.9K0.00%+9+0.5%Added
Mutual of America Capital Management LLC1,633$327.1K0.00%00.0%Unchanged
Ci Investments Inc.1,630$327.0K0.00%+891+120.6%Added
Marex Group plc1,573$315.1K0.04%+581+58.6%Added
North Star Asset Management Inc1,540$308.5K0.02%00.0%Unchanged
Two Sigma Securities, LLC1,521$304.7K0.03%−2,467−61.9%Reduced
Ethic Inc.1,518$304.1K0.01%−391−20.5%Reduced
Clearstead Advisors, LLC1,518$304.1K0.02%+10+0.7%Added
Los Angeles Capital Management LLC1,507$301.9K0.00%−560−27.1%Reduced
Nixon Peabody Trust Co1,500$300.5K0.21%00.0%Unchanged
High Net Worth Advisory Group LLC1,500$300.5K0.12%00.0%Unchanged
Fund Management at Engine No. 1 LLC1,492$298.9K0.06%+137+10.1%Added
Signaturefd, LLC1,445$289.5K0.01%−159−9.9%Reduced
Yousif Capital Management, LLC1,427$285.9K0.00%+50+3.6%Added
Abbrea Capital, LLC1,425$285.0K0.05%−150−9.5%Reduced
DCF Advisers, LLC1,400$280.4K0.21%00.0%Unchanged
Wetherby Asset Management Inc1,362$272.8K0.02%−123−8.3%Reduced
Empowered Funds, LLC1,335$267.4K0.02%+156+13.2%Added
Symmetry Partners, LLC1,331$267.0K0.01%00.0%Unchanged
Truist Financial Corp1,328$266.0K0.00%−140−9.5%Reduced
Cigna Investments Inc1,322$265.0K0.05%−36−2.7%Reduced
Virtus ETF Advisers LLC1,317$263.8K0.15%+24+1.9%Added
Ieq Capital, LLC1,305$261.4K0.01%−142−9.8%Reduced
Echo Street Capital Management LLC1,282$256.8K0.00%+1,282New
Bridgewater Associates, LP1,255$251.4K0.00%+1,255New
Meridian Financial, LLC1,234$247.2K0.24%+1,234New
Meiji Yasuda Asset Management Co Ltd.1,220$244.0K0.01%+50+4.3%Added
Coastline Trust Co1,200$240.4K0.04%00.0%Unchanged
Cetera Investment Advisers1,187$237.8K0.00%+24+2.1%Added
Gateway Advisory, LLC1,180$236.0K0.05%+17+1.5%Added
Nebula Research & Development LLC1,162$232.8K0.41%+1,162New
Peregrine Capital Management LLC1,147$229.8K0.01%00.0%Unchanged
Crossmark Global Holdings, Inc.1,134$227.0K0.01%+107+10.4%Added
Altfest L J & Co Inc1,127$226.0K0.04%−11−1.0%Reduced
EP Wealth Advisors, LLC1,106$221.6K0.00%−10−0.9%Reduced
SlateStone Wealth, LLC1,100$220.0K0.05%00.0%Unchanged
First Republic Investment Management, Inc.1,090$218.3K0.00%+1,090New
Fort Sheridan Advisors LLC1,078$215.9K0.05%+1,078New
Simplify Asset Management Inc.1,072$214.7K0.04%−320−23.0%Reduced
Kestra Advisory Services, LLC1,066$213.5K0.00%−1,272−54.4%Reduced
Cubist Systematic Strategies, LLC1,058$211.9K0.00%−12,414−92.1%Reduced
Thrivent Financial for Lutherans1,049$210.0K0.00%00.0%Unchanged
Gsa Capital Partners LLP1,042$209.0K0.02%+1,042New
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
TD Waterhouse Canada Inc.931$190.6K0.00%−4−0.4%Reduced
Advisors Asset Management, Inc.951$190.5K0.00%−5−0.5%Reduced
Spire Wealth Management896$179.5K0.01%+224+33.3%Added
Ellevest, Inc.869$174.1K0.01%−230−20.9%Reduced
Ossiam837$167.7K0.00%−30−3.5%Reduced
Leonteq Securities AG807$161.7K0.01%+194+31.6%Added
Centaurus Financial, Inc.752$151.0K0.01%+11+1.5%Added
Tower Research Capital LLC (TRC)676$135.0K0.00%−620−47.8%Reduced
Cutler Group LP600$120.0K0.02%+600New
Lazard Asset Management LLC589$117.0K0.00%+99+20.2%Added
Itau Unibanco Holding S.A.570$114.2K0.01%−3−0.5%Reduced
Northwestern Mutual Wealth Management Co531$106.4K0.00%+158+42.4%Added
Paloma Partners Management Co531$106.4K0.02%+531New
Baystate Wealth Management LLC527$105.6K0.01%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund514$103.0K0.00%+514New
Ostrum Asset Management458$91.7K0.01%+458New
Sofinnova Investments, Inc.448$89.7K0.01%−56,000−99.2%Reduced
Steward Partners Investment Advisory, LLC405$81.1K0.00%−18−4.3%Reduced
United Community Bank401$80.3K0.08%00.0%Unchanged
Alta Advisers Ltd400$80.1K0.05%00.0%Unchanged
Quadrant Capital Group LLC325$65.1K0.01%+19+6.2%Added
Advisory Services Network, LLC273$54.7K0.00%−554−67.0%Reduced
IFP Advisors, Inc456$45.9K0.00%−203−30.8%Reduced
Lindbrook Capital, LLC202$40.5K0.00%−54−21.1%Reduced
Anchor Investment Management, LLC200$40.1K0.01%00.0%Unchanged
Archer Investment Corp200$40.1K0.01%+200New
Livforsakringsbolaget Skandia, Omsesidigt200$40.1K0.00%00.0%Unchanged
CKW Financial Group200$40.0K0.01%−50−20.0%Reduced
Allworth Financial LP183$36.7K0.00%+3+1.7%Added
Parallel Advisors, LLC182$36.5K0.00%−12−6.2%Reduced
KB Financial Partners, LLC174$35.0K0.01%00.0%Unchanged
Antipodes Partners Ltd140$28.0K0.00%+22+18.6%Added
Glassman Wealth Services134$26.8K0.00%−4−2.9%Reduced
Brown, Lisle/Cummings, Inc.125$25.0K0.01%00.0%Unchanged