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, Q4 2024

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2024. 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
594
+35 vs. Q3 2024
Shares held
127.8M
+4.29M (+3.5%) vs. Q3 2024
Total value
$30.1B
−$3.90B (−11.5%) vs. Q3 2024
New holders
98
239 more added
Sold out
63
180 more reduced

10 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 594 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 heldQ4 2024: $30.1B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2024.

Institutions holding ALNY in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Quantinno Capital Management LP4,556$1.07M0.01%+1,190+35.4%Added
Himension Fund4,529$1.07M0.07%+4,529New
Y-Intercept (Hong Kong) Ltd4,516$1.06M0.07%+4,516New
Bank of Nova Scotia4,512$1.06M0.00%−1,971−30.4%Reduced
Commerce Bank4,502$1.06M0.01%−20−0.4%Reduced
Colony Group, LLC4,427$1.04M0.00%+3,144+245.1%Added
Truist Financial Corp4,398$1.03M0.00%+2,539+136.6%Added
Gsa Capital Partners LLP4,360$1.03M0.08%+1,500+52.4%Added
Brandywine Managers, LLC4,348$1.02M1.08%00.0%Unchanged
Prudential PLC4,280$1.01M0.01%+1,264+41.9%Added
AustralianSuper Pty Ltd4,218$992.5K0.00%+573+15.7%Added
First Hawaiian Bank4,000$941.2K0.03%00.0%Unchanged
Howland Capital Management LLC4,000$941.2K0.04%00.0%Unchanged
J.P. Marvel Investment Advisors, LLC4,000$941.2K0.16%00.0%Unchanged
Credit Agricole S A3,993$939.6K0.00%+1,310+48.8%Added
Atlantic Trust, LLC3,981$936.8K0.20%00.0%Unchanged
Gilbert & Cook, Inc.3,904$918.6K0.13%−20−0.5%Reduced
Baader Bank INC3,846$905.0K0.08%−1,807−32.0%Reduced
Exchange Traded Concepts, LLC3,833$901.9K0.02%+265+7.4%Added
Allstate Corp3,798$893.7K0.03%+3,798New
Brinker Capital Investments, LLC3,744$881.0K0.01%+203+5.7%Added
Orion Portfolio Solutions, LLC3,744$881.0K0.01%+203+5.7%Added
Beacon Investment Advisory Services, Inc.3,721$875.6K0.04%−680−15.5%Reduced
Sanders Morris Harris LLC3,500$823.6K0.12%00.0%Unchanged
Ci Investments Inc.3,484$820.0K0.00%−113−3.1%Reduced
Steel Peak Wealth Management LLC3,480$818.9K0.03%+1,005+40.6%Added
O'Shaughnessy Asset Management, LLC3,443$810.2K0.01%−286−7.7%Reduced
Pallas Capital Advisors LLC3,408$801.9K0.03%+87+2.6%Added
Spectrum Planning & Advisory Services Inc.3,359$790.4K0.69%00.0%Unchanged
Orion Capital Management LLC3,340$785.9K0.35%−85−2.5%Reduced
Atria Investments LLC3,311$779.1K0.01%+166+5.3%Added
Sequoia Financial Advisors, LLC3,296$775.7K0.01%+167+5.3%Added
B. Metzler seel. Sohn & Co. AG3,279$771.6K0.01%00.0%Unchanged
Hall Laurie J Trustee3,250$765.0K0.25%00.0%Unchanged
Janney Montgomery Scott LLC3,170$746.0K0.00%+19+0.6%Added
Regal Investment Advisors LLC3,158$743.1K0.06%−19−0.6%Reduced
Alpha DNA Investment Management LLC3,019$710.4K0.39%+3,019New
Verition Fund Management LLC2,903$683.1K0.00%−14,565−83.4%Reduced
ADAR1 Capital Management, LLC2,900$682.4K0.14%+2,900New
Generali Investments CEE, investicni spolecnost, a.s.2,900$682.4K0.07%+2,900New
Horizon Kinetics Asset Management LLC2,880$677.7K0.01%+121+4.4%Added
Keybank National Association2,862$673.5K0.00%+2,862New
Fox Run Management, L.L.C.2,809$661.0K0.12%−76−2.6%Reduced
Smith Group Asset Management, LLC2,750$647.1K0.05%−50−1.8%Reduced
Souders Financial Advisors2,740$644.7K0.09%−613−18.3%Reduced
Shepherd Financial Partners LLC2,736$643.8K0.08%00.0%Unchanged
Greenleaf Trust2,722$640.5K0.01%+4+0.1%Added
GF Fund Management Co. Ltd.2,708$637.2K0.01%+2,708New
Harbor Capital Advisors, Inc.2,650$624.0K0.03%+63+2.4%Added
Kovitz Investment Group Partners, LLC2,641$621.7K0.00%+210+8.6%Added
Aigen Investment Management, LP2,606$613.2K0.11%+2,606New
Mercer Global Advisors Inc2,600$611.7K0.00%+2,600New
Bleakley Financial Group, LLC2,590$609.5K0.02%+375+16.9%Added
EntryPoint Capital, LLC2,542$598.2K0.25%+948+59.5%Added
Everence Capital Management Inc2,520$593.0K0.04%+2,520New
Integrated Wealth Concepts LLC2,512$591.1K0.01%+176+7.5%Added
UniSuper Management Pty Ltd2,500$588.3K0.00%−500−16.7%Reduced
Merit Financial Group, LLC2,495$587.1K0.01%+2,495New
Diversified Trust Co2,481$583.8K0.01%−749−23.2%Reduced
Vestcor Inc2,455$578.0K0.02%−3−0.1%Reduced
Ossiam2,427$571.1K0.01%+752+44.9%Added
New York Life Investment Management LLC2,384$561.0K0.01%+153+6.9%Added
Grandfield & Dodd, LLC2,373$558.4K0.03%+1,149+93.9%Added
Graham Capital Management, L.P.2,350$553.0K0.02%−1,260−34.9%Reduced
Nixon Peabody Trust Co2,293$539.6K0.04%+43+1.9%Added
Scientech Research LLC2,280$536.5K0.15%+2,280New
GraniteShares Advisors LLC2,265$533.0K0.34%−454−16.7%Reduced
Corebridge Financial, Inc.2,209$519.8K0.00%−50−2.2%Reduced
Monograph Wealth Advisors, LLC2,138$503.1K0.07%+12+0.6%Added
AMF Pensionsforsakring AB2,089$491.6K0.00%+2,089New
Envestnet Portfolio Solutions, Inc.2,062$485.2K0.00%+880+74.5%Added
Security National Bank of So Dak2,000$470.6K0.26%00.0%Unchanged
Greenland Capital Management LP2,000$470.6K0.09%+896+81.2%Added
Meiji Yasuda Asset Management Co Ltd.1,986$467.3K0.02%00.0%Unchanged
Motley Fool Asset Management LLC1,899$446.9K0.02%+139+7.9%Added
Vontobel Holding Ltd.1,804$424.5K0.00%−5,460−75.2%Reduced
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,533$424.2K0.00%−257−14.4%Reduced
Advisor Group Holdings, Inc.4,829$416.5K0.00%+3,465+254.0%Added
Mutual of America Capital Management LLC1,763$414.9K0.00%−161−8.4%Reduced
Sava Infond d.o.o.1,730$407.1K0.07%+1,730New
Oppenheimer & Co Inc1,716$403.8K0.01%−190−10.0%Reduced
Fort Sheridan Advisors LLC1,701$400.3K0.06%−32−1.8%Reduced
Blueshift Asset Management, LLC1,698$399.6K0.15%+631+59.1%Added
SG Americas Securities, LLC1,667$392.0K0.00%−1,723−50.8%Reduced
Axq Capital, LP1,644$386.9K0.17%+1,644New
Yousif Capital Management, LLC1,642$386.4K0.00%+9+0.6%Added
Signaturefd, LLC1,640$386.0K0.01%−214−11.5%Reduced
Everhart Financial Group, Inc.1,596$375.6K0.08%−110−6.4%Reduced
Quantbot Technologies LP1,588$373.7K0.01%+1,384+678.4%Added
Kestra Advisory Services, LLC1,587$373.4K0.00%+284+21.8%Added
Emerald Advisers, LLC1,580$371.8K0.01%+3+0.2%Added
Ballentine Partners, LLC1,573$370.1K0.01%+39+2.5%Added
Ontario Teachers Pension Plan Board1,547$364.0K0.00%+1,547New
JGP Global Gestao de Recursos Ltda.1,546$363.8K0.83%−2−0.1%Reduced
Kennedy Capital Management, Inc.1,535$361.2K0.01%−944−38.1%Reduced
Wedmont Private Capital1,485$353.4K0.02%+8+0.5%Added
High Net Worth Advisory Group LLC1,500$353.0K0.10%00.0%Unchanged
United Capital Financial Advisers, LLC1,480$348.3K0.00%−88−5.6%Reduced
Asahi Life Asset Management Co., Ltd.1,480$348.3K0.21%−120−7.5%Reduced
Forum Financial Management, LP1,464$344.5K0.01%+5+0.3%Added