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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 2025

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2025. 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
625
+39 vs. Q4 2024
Shares held
129.4M
+2.10M (+1.7%) vs. Q4 2024
Total value
$34.8B
+$4.88B (+16.3%) vs. Q4 2024
New holders
106
235 more added
Sold out
67
205 more reduced

8 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2025: 625 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 2025: $34.8B
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 2025

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2024.

Institutions holding ALNY in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Fortitude Family Office, LLC500$135.0K0.05%+500New
EverSource Wealth Advisors, LLC455$122.9K0.01%+39+9.4%Added
MAI Capital Management447$120.7K0.00%+3+0.7%Added
Jones Financial Companies LLLP419$112.5K0.00%+153+57.5%Added
Covestor Ltd415$112.0K0.07%−43−9.4%Reduced
Ostrum Asset Management406$109.6K0.01%−11−2.6%Reduced
Skopos Labs, Inc.403$108.8K0.02%−14−3.4%Reduced
V-Square Quantitative Management LLC371$100.2K0.01%+1+0.3%Added
Versant Capital Management, Inc336$90.7K0.02%+146+76.8%Added
Edmond de Rothschild Holding S.A.318$85.9K0.00%+49+18.2%Added
Prestige Wealth Management Group LLC316$85.3K0.02%00.0%Unchanged
Bayforest Capital Ltd306$82.6K0.04%+39+14.6%Added
True Wealth Design, LLC299$80.8K0.03%+147+96.7%Added
Ofi Invest Asset Management302$75.5K0.00%+147+94.8%Added
Evelyn Partners Investment Management LLP250$67.5K0.00%00.0%Unchanged
IFP Advisors, Inc232$62.6K0.00%−9−3.7%Reduced
Farther Finance Advisors, LLC241$61.6K0.00%00.0%Unchanged
Geneos Wealth Management Inc.222$59.9K0.00%+175+372.3%Added
Spire Wealth Management204$55.1K0.00%−1−0.5%Reduced
Anchor Investment Management, LLC200$54.0K0.01%00.0%Unchanged
Concord Wealth Partners200$54.0K0.01%00.0%Unchanged
Larson Financial Group LLC199$53.7K0.00%+87+77.7%Added
Huntington National Bank198$53.5K0.00%+125+171.2%Added
Washington Trust Advisors, Inc.175$47.2K0.00%+61+53.5%Added
Itau Unibanco Holding S.A.170$46.0K0.00%−1−0.6%Reduced
Capital Advisors, Ltd. LLC162$44.0K0.01%00.0%Unchanged
Carolinas Wealth Consulting LLC157$42.4K0.01%+8+5.4%Added
Massmutual Trust Co FSB144$38.9K0.00%+37+34.6%Added
Parkside Financial Bank & Trust135$36.5K0.00%+79+141.1%Added
Brown, Lisle/Cummings, Inc.132$35.6K0.01%+7+5.6%Added
First Horizon Advisors, Inc.124$33.5K0.00%00.0%Unchanged
Global Trust Asset Management, LLC122$32.9K0.02%00.0%Unchanged
Bessemer Group Inc108$29.0K0.00%+69+176.9%Added
Hartford Financial Management Inc.100$27.0K0.01%00.0%Unchanged
Boston Private Wealth LLC100$27.0K0.00%+100New
Sandy Spring Bank92$24.8K0.00%−5−5.2%Reduced
Harbour Investments, Inc.91$24.6K0.00%−42−31.6%Reduced
Cape Investment Advisory, Inc.90$24.3K0.01%00.0%Unchanged
SRS Capital Advisors, Inc.85$23.0K0.00%−396−82.3%Reduced
Riverview Trust Co78$21.1K0.02%00.0%Unchanged
TFC Financial Management74$20.0K0.00%00.0%Unchanged
Sierra Ocean, LLC71$19.2K0.02%+5+7.6%Added
Fifth Third Bancorp70$18.9K0.00%+5+7.7%Added
Sachetta, LLC66$17.8K0.01%−2−2.9%Reduced
Hemington Wealth Management66$17.0K0.00%+18+37.5%Added
MV Capital Management, Inc.60$16.2K0.00%+10+20.0%Added
Truvestments Capital LLC57$15.4K0.00%00.0%Unchanged
Bokf, NA52$14.0K0.00%−329−86.4%Reduced
Private Wealth Management Group, LLC51$13.8K0.01%+43+537.5%Added
Saudi Central Bank51$13.8K0.07%+51New
Generali Asset Management SPA SGR50$13.5K0.00%−3−5.7%Reduced
St. Johns Investment Management Company, LLC50$13.5K0.01%00.0%Unchanged
Peoples Financial Services Corp.50$13.5K0.01%00.0%Unchanged
Piscataqua Savings Bank50$13.5K0.01%00.0%Unchanged
WPG Advisers, LLC47$12.7K0.01%+8+20.5%Added
Private Wealth Asset Management, LLC47$12.7K0.00%+47New
J.Safra Asset Management Corp41$11.1K0.00%+34+485.7%Added
SBI Securities Co., Ltd.40$10.8K0.00%+4+11.1%Added
Whipplewood Advisors, LLC105$10.3K0.01%+71+208.8%Added
Bell Investment Advisors, Inc37$9.99K0.00%+6+19.4%Added
CVA Family Office, LLC37$9.99K0.00%+12+48.0%Added
Whittier Trust Co36$9.72K0.00%00.0%Unchanged
Bogart Wealth, LLC35$9.45K0.00%+4+12.9%Added
JFS Wealth Advisors, LLC35$9.45K0.00%+9+34.6%Added
ORG Partners LLC36$9.20K0.00%+36New
Leonteq Securities AG32$9.07K0.00%−115−78.2%Reduced
Cornerstone Planning Group LLC34$8.23K0.00%+11+47.8%Added
Aventura Private Wealth, LLC30$8.10K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.30$7.64K0.00%00.0%Unchanged
Brown Brothers Harriman & Co27$7.29K0.00%−3−10.0%Reduced
Meeder Asset Management Inc26$7.02K0.00%−12−31.6%Reduced
Princeton Global Asset Management LLC25$6.75K0.00%−25−50.0%Reduced
South State Corp.21$5.67K0.00%+21New
Mather Group, LLC.20$5.42K0.00%+8+66.7%Added
TCTC Holdings, LLC19$5.13K0.00%+19New
Quent Capital, LLC17$4.59K0.00%00.0%Unchanged
Nova Wealth Management, Inc.17$4.59K0.00%+17New
Cetera Trust Company, N.A16$4.32K0.00%00.0%Unchanged
Sunbelt Securities, Inc.15$4.05K0.00%00.0%Unchanged
Sherman Asset Management, Inc.15$4.05K0.00%00.0%Unchanged
Avion Wealth18$4.00K0.00%00.0%Unchanged
Trust Co of Vermont14$3.78K0.00%00.0%Unchanged
Front Row Advisors LLC14$3.78K0.00%00.0%Unchanged
Semmax Financial Advisors Inc.14$3.52K0.00%00.0%Unchanged
Raffa Wealth Management, LLC13$3.51K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.10$2.70K0.00%+3+42.9%Added
Mark Sheptoff Financial Planning, LLC10$2.70K0.00%00.0%Unchanged
Curio Wealth, LLC1$2.35K0.00%+1New
FSA Wealth Management LLC8$2.16K0.00%00.0%Unchanged
Clear Investment Research, LLC8$2.16K0.00%+1+14.3%Added
WFA Asset Management Corp14$2.09K0.00%00.0%Unchanged
Hughes Financial Services, LLC8$2.05K0.00%+8New
HHM Wealth Advisors, LLC7$1.89K0.00%00.0%Unchanged
SJS Investment Consulting Inc.7$1.89K0.00%+3+75.0%Added
Global Financial Private Client, LLC7$1.89K0.00%+5+250.0%Added
S&T Bank6$1.62K0.00%+6New
Oakworth Capital, Inc.6$1.62K0.00%+6New
Cromwell Holdings LLC6$1.62K0.00%+6New
Montag A & Associates Inc6$1.57K0.00%00.0%Unchanged
Garde Capital, Inc.5$1.35K0.00%+5New