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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, Q2 2025

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 30, 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
653
+35 vs. Q1 2025
Shares held
132.1M
+2.77M (+2.1%) vs. Q1 2025
Total value
$43.1B
+$8.27B (+23.8%) vs. Q1 2025
New holders
98
262 more added
Sold out
63
214 more reduced

7 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: 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 holdersQ2 2025: 653 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 heldQ2 2025: $43.1B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2025.

Institutions holding ALNY in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Ogorek Anthony Joseph3$00.00%00.0%Unchanged
Creative Financial Designs Inc1$3260.00%00.0%Unchanged
TD Private Client Wealth LLC1$3260.00%00.0%Unchanged
ROSS\JOHNSON & Associates LLC1$3260.01%00.0%Unchanged
Activest Wealth Management1$3260.00%+1New
Quaker Wealth Management, LLC1$3270.00%+1New
Rothschild Investment LLC2$6520.00%−1−33.3%Reduced
Logan Capital Management Inc2$6520.00%00.0%Unchanged
CoreCap Advisors, LLC2$6520.00%00.0%Unchanged
AdvisorNet Financial, Inc3$9780.00%00.0%Unchanged
HFM Investment Advisors, LLC3$9780.00%+2+200.0%Added
Abound Wealth Management3$9790.00%00.0%Unchanged
Manchester Capital Management LLC3$9790.00%+1+50.0%Added
Beaird Harris Wealth Management, LLC3$9790.00%+3New
Rialto Wealth Management, LLC3$9790.00%+3New
Parkworth Wealth Management, Inc.4$1.30K0.00%+2+100.0%Added
SJS Investment Consulting Inc.4$1.30K0.00%−3−42.9%Reduced
American Capital Advisory, LLC4$1.30K0.00%+4New
CBIZ Investment Advisory Services, LLC5$1.63K0.00%00.0%Unchanged
Richardson Financial Services Inc.5$1.63K0.00%00.0%Unchanged
Principia Wealth Advisory, LLC5$1.63K0.00%+2+66.7%Added
Garde Capital, Inc.5$1.63K0.00%00.0%Unchanged
Toth Financial Advisory Corp5$1.63K0.00%+5New
Stephens Consulting, LLC5$1.63K0.00%+5New
Kayne Anderson Rudnick Investment Management LLC5$1.86K0.00%+5New
Montag A & Associates Inc6$1.90K0.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC6$1.96K0.00%+4+200.0%Added
WealthTrak Capital Management LLC6$1.96K0.00%+4+200.0%Added
Tortoise Investment Management, LLC6$1.96K0.00%+6New
HHM Wealth Advisors, LLC7$2.28K0.00%00.0%Unchanged
Highline Wealth Partners LLC7$2.28K0.00%+3+75.0%Added
Trifecta Capital Advisors, LLC7$2.28K0.00%+7New
Clear Investment Research, LLC8$2.61K0.00%00.0%Unchanged
FSA Wealth Management LLC8$2.61K0.00%00.0%Unchanged
Umb Bank N A8$2.61K0.00%+6+300.0%Added
Front Row Advisors LLC9$2.94K0.00%−5−35.7%Reduced
Penserra Capital Management LLC12$3.00K0.00%−1,208−99.0%Reduced
NBC Securities, Inc.12$3.00K0.00%+12New
Mark Sheptoff Financial Planning, LLC10$3.26K0.00%00.0%Unchanged
Curio Wealth, LLC10$3.26K0.00%+9+900.0%Added
Archer Investment Corp10$3.26K0.00%+10New
WFA Asset Management Corp14$3.40K0.00%00.0%Unchanged
Sunbelt Securities, Inc.15$3.53K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.12$3.91K0.00%+2+20.0%Added
Raffa Wealth Management, LLC13$4.24K0.00%00.0%Unchanged
Chung Wu Investment Group, LLC13$4.24K0.00%+13New
Trust Co of Vermont14$4.57K0.00%00.0%Unchanged
True Wealth Design, LLC14$4.60K0.00%−285−95.3%Reduced
Sherman Asset Management, Inc.15$4.89K0.00%00.0%Unchanged
S&T Bank15$4.89K0.00%+9+150.0%Added
Hughes Financial Services, LLC12$5.14K0.00%+4+50.0%Added
Cetera Trust Company, N.A16$5.22K0.00%00.0%Unchanged
Riggs Asset Managment Co. Inc.17$5.54K0.00%+17New
Evergreen Private Wealth LLC17$5.54K0.00%+17New
Semmax Financial Advisors Inc.14$6.15K0.00%00.0%Unchanged
TCTC Holdings, LLC19$6.20K0.00%00.0%Unchanged
Twin Peaks Wealth Advisors, LLC15$6.25K0.00%+15New
Dogwood Wealth Management LLC20$6.35K0.00%+18+900.0%Added
Cromwell Holdings LLC20$6.52K0.00%+14+233.3%Added
TD Capital Management LLC23$7.50K0.00%+23New
South State Corp.26$8.48K0.00%+5+23.8%Added
Leonteq Securities AG29$9.46K0.00%−3−9.4%Reduced
TD Waterhouse Canada Inc.30$9.65K0.00%00.0%Unchanged
Meeder Asset Management Inc31$10.1K0.00%+5+19.2%Added
Private Trust Co NA32$10.4K0.00%+32New
Bogart Wealth, LLC35$11.4K0.00%00.0%Unchanged
MB, Levis & Associates, LLC35$11.4K0.01%+35New
Bell Investment Advisors, Inc35$11.4K0.00%−2−5.4%Reduced
JFS Wealth Advisors, LLC35$11.4K0.00%00.0%Unchanged
Golden State Wealth Management, LLC36$11.7K0.00%+36New
Avion Wealth38$12.0K0.00%+20+111.1%Added
Aventura Private Wealth, LLC40$13.0K0.01%+10+33.3%Added
Whipplewood Advisors, LLC42$13.7K0.01%−63−60.0%Reduced
Private Wealth Asset Management, LLC42$13.7K0.00%−5−10.6%Reduced
WPG Advisers, LLC42$13.7K0.01%−5−10.6%Reduced
J.Safra Asset Management Corp43$14.0K0.00%+2+4.9%Added
ORG Partners LLC47$15.1K0.00%+11+30.6%Added
Westside Investment Management, Inc.48$15.5K0.00%+48New
LRI Investments, LLC48$15.7K0.00%+48New
Rossby Financial, LCC49$16.0K0.01%+49New
Peoples Financial Services Corp.50$16.3K0.01%00.0%Unchanged
Piscataqua Savings Bank50$16.3K0.01%00.0%Unchanged
St. Johns Investment Management Company, LLC50$16.3K0.01%00.0%Unchanged
Generali Asset Management SPA SGR50$16.3K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc52$17.0K0.00%+52New
Cornerstone Planning Group LLC42$17.6K0.00%+8+23.5%Added
Truvestments Capital LLC57$18.7K0.00%00.0%Unchanged
Global Trust Asset Management, LLC60$19.6K0.01%−62−50.8%Reduced
CVA Family Office, LLC61$19.9K0.00%+24+64.9%Added
Private Wealth Management Group, LLC62$20.2K0.01%+11+21.6%Added
Essential Partners LLC62$20.2K0.01%+62New
MV Capital Management, Inc.63$20.5K0.00%+3+5.0%Added
SBI Securities Co., Ltd.63$20.5K0.00%+23+57.5%Added
Tower Research Capital LLC (TRC)64$20.9K0.00%−1,319−95.4%Reduced
Sierra Ocean, LLC68$22.2K0.02%−3−4.2%Reduced
Whittier Trust Co69$22.5K0.00%+33+91.7%Added
Sachetta, LLC73$23.8K0.01%+7+10.6%Added
TFC Financial Management74$24.1K0.00%00.0%Unchanged
Fifth Third Bancorp76$24.8K0.00%+6+8.6%Added
Hemington Wealth Management87$28.0K0.00%+21+31.8%Added