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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, 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
Rothschild Investment LLC1$2350.00%+1New
Kohmann Bosshard Financial Services, LLC1$2350.00%+1New
Activest Wealth Management1$2350.00%+1New
Parkworth Wealth Management, Inc.1$2350.00%+1New
WealthTrak Capital Management LLC1$2360.00%+1New
Manchester Capital Management LLC2$4710.00%00.0%Unchanged
Logan Capital Management Inc2$4710.00%+2New
Global Financial Private Client, LLC2$4710.00%+2New
Winnow Wealth LLC3$4910.00%+3New
AdvisorNet Financial, Inc3$7060.00%−8−72.7%Reduced
CBIZ Investment Advisory Services, LLC3$7060.00%+3New
Cassady Schiller Wealth Management, LLC3$7060.00%+3New
Kestra Investment Management, LLC3$7060.00%+3New
Highline Wealth Partners LLC3$7060.00%+3New
Abound Wealth Management4$8850.00%+1+33.3%Added
Principia Wealth Advisory, LLC4$9410.00%+4New
SJS Investment Consulting Inc.4$9420.00%−1−20.0%Reduced
JNBA Financial Advisors4$9420.00%00.0%Unchanged
Winthrop Capital Management, LLC5$1.00K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC4$1.07K0.00%+4New
Proequities, Inc.5$1.33K0.00%+2+66.7%Added
Montag A & Associates Inc6$1.37K0.00%+1+20.0%Added
Continuum Advisory, LLC6$1.41K0.00%00.0%Unchanged
WR Wealth Planners, LLC6$1.41K0.00%+2+50.0%Added
Richardson Financial Services Inc.7$1.65K0.00%−3−30.0%Reduced
Clear Investment Research, LLC7$1.65K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.7$1.65K0.00%00.0%Unchanged
HHM Wealth Advisors, LLC7$1.65K0.00%+7New
J.Safra Asset Management Corp7$1.65K0.00%00.0%Unchanged
Criterion Capital Advisors, LLC7$1.70K0.00%00.0%Unchanged
Hollencrest Capital Management8$1.88K0.00%−97−92.4%Reduced
FSA Wealth Management LLC8$1.88K0.00%00.0%Unchanged
Private Wealth Management Group, LLC8$1.88K0.00%00.0%Unchanged
Penserra Capital Management LLC12$2.00K0.00%−2,401−99.5%Reduced
Bryn Mawr Trust Co9$2.12K0.00%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC10$2.35K0.00%00.0%Unchanged
Mather Group, LLC.12$2.82K0.00%+6+100.0%Added
Raffa Wealth Management, LLC13$3.06K0.00%00.0%Unchanged
Trust Co of Vermont14$3.29K0.00%00.0%Unchanged
Front Row Advisors LLC14$3.29K0.00%00.0%Unchanged
WFA Asset Management Corp14$3.29K0.00%00.0%Unchanged
Sherman Asset Management, Inc.15$3.53K0.00%+15New
Sunbelt Securities, Inc.15$3.54K0.00%00.0%Unchanged
Semmax Financial Advisors Inc.14$3.71K0.00%00.0%Unchanged
Cetera Trust Company, N.A16$3.77K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd16$3.77K0.00%+16New
Avion Wealth18$4.00K0.00%−3−14.3%Reduced
Quent Capital, LLC17$4.00K0.00%+1+6.3%Added
CVA Family Office, LLC25$5.88K0.00%+19+316.7%Added
JFS Wealth Advisors, LLC26$6.12K0.00%+2+8.3%Added
Cornerstone Planning Group LLC23$6.37K0.00%00.0%Unchanged
Brown Brothers Harriman & Co30$7.06K0.00%−22−42.3%Reduced
TD Waterhouse Canada Inc.30$7.06K0.00%00.0%Unchanged
Aventura Private Wealth, LLC30$7.06K0.00%+30New
Bell Investment Advisors, Inc31$7.29K0.00%−6−16.2%Reduced
Bogart Wealth, LLC31$7.29K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC33$7.76K0.00%+28+560.0%Added
Whipplewood Advisors, LLC34$8.00K0.00%+34New
Whittier Trust Co36$8.47K0.00%00.0%Unchanged
SBI Securities Co., Ltd.36$8.47K0.00%+36New
Meeder Asset Management Inc38$8.94K0.00%+1+2.7%Added
Bessemer Group Inc39$9.00K0.00%+6+18.2%Added
WPG Advisers, LLC39$9.18K0.01%+39New
Hemington Wealth Management48$11.0K0.00%+12+33.3%Added
Geneos Wealth Management Inc.47$11.1K0.00%00.0%Unchanged
Peoples Financial Services Corp.50$11.8K0.01%00.0%Unchanged
Piscataqua Savings Bank50$11.8K0.01%00.0%Unchanged
St. Johns Investment Management Company, LLC50$11.8K0.01%00.0%Unchanged
Princeton Global Asset Management LLC50$11.8K0.00%00.0%Unchanged
MV Capital Management, Inc.50$11.8K0.00%+10+25.0%Added
Generali Asset Management SPA SGR53$12.5K0.00%+53New
Elequin Capital LP54$12.7K0.00%+8+17.4%Added
Parkside Financial Bank & Trust56$13.2K0.00%00.0%Unchanged
Truvestments Capital LLC57$13.4K0.00%00.0%Unchanged
Fifth Third Bancorp65$15.3K0.00%+43+195.5%Added
Sierra Ocean, LLC66$15.5K0.01%+66New
Sachetta, LLC68$16.0K0.01%−3−4.2%Reduced
Huntington National Bank73$17.2K0.00%−21−22.3%Reduced
TFC Financial Management74$17.4K0.00%00.0%Unchanged
Riverview Trust Co78$18.4K0.02%+75+2,500.0%Added
Global Retirement Partners, LLC81$19.1K0.00%−20−19.8%Reduced
Cape Investment Advisory, Inc.90$21.2K0.01%00.0%Unchanged
Sandy Spring Bank97$22.8K0.00%−9−8.5%Reduced
Hartford Financial Management Inc.100$23.5K0.00%00.0%Unchanged
Massmutual Trust Co FSB107$25.2K0.00%+40+59.7%Added
Larson Financial Group LLC112$26.4K0.00%+73+187.2%Added
Washington Trust Advisors, Inc.114$26.8K0.00%−38−25.0%Reduced
Park Square Financial Group, LLC121$28.5K0.02%+121New
Global Trust Asset Management, LLC122$28.7K0.01%00.0%Unchanged
First Horizon Advisors, Inc.124$29.2K0.00%+29+30.5%Added
Brown, Lisle/Cummings, Inc.125$29.4K0.01%00.0%Unchanged
Harbour Investments, Inc.133$31.3K0.00%+2+1.5%Added
R Squared Ltd140$32.9K0.03%+140New
Leonteq Securities AG147$34.6K0.00%+52+54.7%Added
Carolinas Wealth Consulting LLC149$35.1K0.01%−10−6.3%Reduced
Ofi Invest Asset Management155$35.2K0.00%+155New
Colonial Trust Co150$35.3K0.01%+150New
Coppell Advisory Solutions LLC150$35.4K0.01%+11+7.9%Added
True Wealth Design, LLC152$35.8K0.01%−2−1.3%Reduced
Capital Advisors, Ltd. LLC162$38.0K0.00%00.0%Unchanged