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
JGP Global Gestao de Recursos Ltda.1,546$363.8K0.83%−2−0.1%Reduced
Ontario Teachers Pension Plan Board1,547$364.0K0.00%+1,547New
Ballentine Partners, LLC1,573$370.1K0.01%+39+2.5%Added
Emerald Advisers, LLC1,580$371.8K0.01%+3+0.2%Added
Kestra Advisory Services, LLC1,587$373.4K0.00%+284+21.8%Added
Quantbot Technologies LP1,588$373.7K0.01%+1,384+678.4%Added
Everhart Financial Group, Inc.1,596$375.6K0.08%−110−6.4%Reduced
Signaturefd, LLC1,640$386.0K0.01%−214−11.5%Reduced
Yousif Capital Management, LLC1,642$386.4K0.00%+9+0.6%Added
Axq Capital, LP1,644$386.9K0.17%+1,644New
SG Americas Securities, LLC1,667$392.0K0.00%−1,723−50.8%Reduced
Blueshift Asset Management, LLC1,698$399.6K0.15%+631+59.1%Added
Fort Sheridan Advisors LLC1,701$400.3K0.06%−32−1.8%Reduced
Oppenheimer & Co Inc1,716$403.8K0.01%−190−10.0%Reduced
Sava Infond d.o.o.1,730$407.1K0.07%+1,730New
Mutual of America Capital Management LLC1,763$414.9K0.00%−161−8.4%Reduced
Advisor Group Holdings, Inc.4,829$416.5K0.00%+3,465+254.0%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,533$424.2K0.00%−257−14.4%Reduced
Vontobel Holding Ltd.1,804$424.5K0.00%−5,460−75.2%Reduced
Motley Fool Asset Management LLC1,899$446.9K0.02%+139+7.9%Added
Meiji Yasuda Asset Management Co Ltd.1,986$467.3K0.02%00.0%Unchanged
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
Envestnet Portfolio Solutions, Inc.2,062$485.2K0.00%+880+74.5%Added
AMF Pensionsforsakring AB2,089$491.6K0.00%+2,089New
Monograph Wealth Advisors, LLC2,138$503.1K0.07%+12+0.6%Added
Corebridge Financial, Inc.2,209$519.8K0.00%−50−2.2%Reduced
GraniteShares Advisors LLC2,265$533.0K0.34%−454−16.7%Reduced
Scientech Research LLC2,280$536.5K0.15%+2,280New
Nixon Peabody Trust Co2,293$539.6K0.04%+43+1.9%Added
Graham Capital Management, L.P.2,350$553.0K0.02%−1,260−34.9%Reduced
Grandfield & Dodd, LLC2,373$558.4K0.03%+1,149+93.9%Added
New York Life Investment Management LLC2,384$561.0K0.01%+153+6.9%Added
Ossiam2,427$571.1K0.01%+752+44.9%Added
Vestcor Inc2,455$578.0K0.02%−3−0.1%Reduced
Diversified Trust Co2,481$583.8K0.01%−749−23.2%Reduced
Merit Financial Group, LLC2,495$587.1K0.01%+2,495New
UniSuper Management Pty Ltd2,500$588.3K0.00%−500−16.7%Reduced
Integrated Wealth Concepts LLC2,512$591.1K0.01%+176+7.5%Added
Everence Capital Management Inc2,520$593.0K0.04%+2,520New
EntryPoint Capital, LLC2,542$598.2K0.25%+948+59.5%Added
Bleakley Financial Group, LLC2,590$609.5K0.02%+375+16.9%Added
Mercer Global Advisors Inc2,600$611.7K0.00%+2,600New
Aigen Investment Management, LP2,606$613.2K0.11%+2,606New
Kovitz Investment Group Partners, LLC2,641$621.7K0.00%+210+8.6%Added
Harbor Capital Advisors, Inc.2,650$624.0K0.03%+63+2.4%Added
GF Fund Management Co. Ltd.2,708$637.2K0.01%+2,708New
Greenleaf Trust2,722$640.5K0.01%+4+0.1%Added
Shepherd Financial Partners LLC2,736$643.8K0.08%00.0%Unchanged
Souders Financial Advisors2,740$644.7K0.09%−613−18.3%Reduced
Smith Group Asset Management, LLC2,750$647.1K0.05%−50−1.8%Reduced
Fox Run Management, L.L.C.2,809$661.0K0.12%−76−2.6%Reduced
Keybank National Association2,862$673.5K0.00%+2,862New
Horizon Kinetics Asset Management LLC2,880$677.7K0.01%+121+4.4%Added
ADAR1 Capital Management, LLC2,900$682.4K0.14%+2,900New
Generali Investments CEE, investicni spolecnost, a.s.2,900$682.4K0.07%+2,900New
Verition Fund Management LLC2,903$683.1K0.00%−14,565−83.4%Reduced
Alpha DNA Investment Management LLC3,019$710.4K0.39%+3,019New
Regal Investment Advisors LLC3,158$743.1K0.06%−19−0.6%Reduced
Janney Montgomery Scott LLC3,170$746.0K0.00%+19+0.6%Added
Hall Laurie J Trustee3,250$765.0K0.25%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG3,279$771.6K0.01%00.0%Unchanged
Sequoia Financial Advisors, LLC3,296$775.7K0.01%+167+5.3%Added
Atria Investments LLC3,311$779.1K0.01%+166+5.3%Added
Orion Capital Management LLC3,340$785.9K0.35%−85−2.5%Reduced
Spectrum Planning & Advisory Services Inc.3,359$790.4K0.69%00.0%Unchanged
Pallas Capital Advisors LLC3,408$801.9K0.03%+87+2.6%Added
O'Shaughnessy Asset Management, LLC3,443$810.2K0.01%−286−7.7%Reduced
Steel Peak Wealth Management LLC3,480$818.9K0.03%+1,005+40.6%Added
Ci Investments Inc.3,484$820.0K0.00%−113−3.1%Reduced
Sanders Morris Harris LLC3,500$823.6K0.12%00.0%Unchanged
Beacon Investment Advisory Services, Inc.3,721$875.6K0.04%−680−15.5%Reduced
Brinker Capital Investments, LLC3,744$881.0K0.01%+203+5.7%Added
Orion Portfolio Solutions, LLC3,744$881.0K0.01%+203+5.7%Added
Allstate Corp3,798$893.7K0.03%+3,798New
Exchange Traded Concepts, LLC3,833$901.9K0.02%+265+7.4%Added
Baader Bank INC3,846$905.0K0.08%−1,807−32.0%Reduced
Gilbert & Cook, Inc.3,904$918.6K0.13%−20−0.5%Reduced
Atlantic Trust, LLC3,981$936.8K0.20%00.0%Unchanged
Credit Agricole S A3,993$939.6K0.00%+1,310+48.8%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
AustralianSuper Pty Ltd4,218$992.5K0.00%+573+15.7%Added
Prudential PLC4,280$1.01M0.01%+1,264+41.9%Added
Brandywine Managers, LLC4,348$1.02M1.08%00.0%Unchanged
Gsa Capital Partners LLP4,360$1.03M0.08%+1,500+52.4%Added
Truist Financial Corp4,398$1.03M0.00%+2,539+136.6%Added
Colony Group, LLC4,427$1.04M0.00%+3,144+245.1%Added
Commerce Bank4,502$1.06M0.01%−20−0.4%Reduced
Bank of Nova Scotia4,512$1.06M0.00%−1,971−30.4%Reduced
Y-Intercept (Hong Kong) Ltd4,516$1.06M0.07%+4,516New
Himension Fund4,529$1.07M0.07%+4,529New
Quantinno Capital Management LP4,556$1.07M0.01%+1,190+35.4%Added
Metis Global Partners, LLC4,727$1.11M0.03%+347+7.9%Added
RSM US Wealth Management LLC4,748$1.12M0.02%+378+8.6%Added
Cetera Investment Advisers4,770$1.12M0.00%+1,902+66.3%Added
US Bancorp4,782$1.13M0.00%−796−14.3%Reduced
Prelude Capital Management, LLC4,813$1.13M0.10%−20−0.4%Reduced
Simplex Trading, LLC4,829$1.14M0.03%+4,829New