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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, Q3 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 2023. 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
454
−15 vs. Q2 2023
Shares held
117.8M
+10.8K (0.0%) vs. Q2 2023
Total value
$20.9B
−$1.52B (−6.8%) vs. Q2 2023
New holders
43
161 more added
Sold out
58
165 more reduced

8 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 454 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 heldQ3 2023: $20.9B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2023.

Institutions holding ALNY in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Earnest Partners LLC61$10.8K0.00%00.0%Unchanged
Harbour Investments, Inc.53$9.39K0.00%+6+12.8%Added
Quent Capital, LLC50$8.86K0.00%−8−13.8%Reduced
Peoples Financial Services Corp.50$8.86K0.00%00.0%Unchanged
St. Johns Investment Management Company, LLC50$8.86K0.01%00.0%Unchanged
TFC Financial Management50$8.86K0.00%00.0%Unchanged
Park Place Capital Corp49$8.68K0.00%00.0%Unchanged
Bell Investment Advisors, Inc38$6.73K0.00%00.0%Unchanged
Whittier Trust Co38$6.73K0.00%+2+5.6%Added
Bogart Wealth, LLC36$6.38K0.00%00.0%Unchanged
Huntington National Bank30$5.31K0.00%−12−28.6%Reduced
EverSource Wealth Advisors, LLC30$5.31K0.00%−73−70.9%Reduced
Massmutual Trust Co FSB26$4.61K0.00%+1+4.0%Added
JFS Wealth Advisors, LLC26$4.61K0.00%+5+23.8%Added
Parkside Financial Bank & Trust25$4.43K0.00%+2+8.7%Added
Farther Finance Advisors, LLC25$4.43K0.00%+4+19.0%Added
Zions Bancorporation, N.A.24$4.25K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd23$4.00K0.00%00.0%Unchanged
Thomas J. Herzfeld Advisors, Inc.21$3.72K0.00%00.0%Unchanged
Smithfield Trust Co15$3.00K0.00%00.0%Unchanged
Sunbelt Securities, Inc.15$2.66K0.00%00.0%Unchanged
Piscataqua Savings Bank15$2.66K0.00%00.0%Unchanged
WFA Asset Management Corp14$2.48K0.00%00.0%Unchanged
Front Row Advisors LLC14$2.48K0.00%00.0%Unchanged
Semmax Financial Advisors Inc.14$2.31K0.00%+14New
Raffa Wealth Management, LLC13$2.30K0.00%00.0%Unchanged
Cary Street Partner Investment Advisory LLC13$2.30K0.00%00.0%Unchanged
NBC Securities, Inc.16$2.00K0.00%+16New
Steward Financial Group LLC15$2.00K0.00%+15New
Baker Avenue Asset Management, LP10$1.77K0.00%+3+42.9%Added
AdvisorNet Financial, Inc9$1.59K0.00%−15−62.5%Reduced
SRS Capital Advisors, Inc.8$1.42K0.00%+5+166.7%Added
JJJ Advisors Inc.8$1.42K0.00%00.0%Unchanged
Montag A & Associates Inc7$1.24K0.00%00.0%Unchanged
SJS Investment Consulting Inc.7$1.24K0.00%+2+40.0%Added
Macroview Investment Management LLC6$1.06K0.00%+6New
ClariVest Asset Management LLC4$1.00K0.00%00.0%Unchanged
Penserra Capital Management LLC9$1.00K0.00%+3+50.0%Added
DT Investment Partners, LLC5$8860.00%00.0%Unchanged
JNBA Financial Advisors4$7090.00%+4New
Versant Capital Management, Inc4$7080.00%−1−20.0%Reduced
Fifth Third Bancorp4$7080.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC4$7080.00%00.0%Unchanged
GWM Advisors LLC4$7080.00%00.0%Unchanged
Manchester Capital Management LLC3$5320.00%00.0%Unchanged
Abound Wealth Management3$5320.00%00.0%Unchanged
Proequities, Inc.3$5310.00%+3New
J.Safra Asset Management Corp2$3540.00%00.0%Unchanged
Raleigh Capital Management Inc.2$3540.00%+2New
Crewe Advisors LLC1$1780.00%00.0%Unchanged
True Wealth Design, LLC1$1780.00%00.0%Unchanged
Cornerstone Planning Group LLC1$1770.00%+1New
Centerpoint Advisors, LLC2$00.00%00.0%Unchanged
Avion Wealth5$00.00%+2+66.7%Added
Nicholas Investment Partners, LP0$00.00%−90,351−100.0%Sold out
Clearbridge Investments, LLC0$00.00%−83,185−100.0%Sold out
Integral Health Asset Management, LLC0$00.00%−52,000−100.0%Sold out
Worldquant Millennium Advisors LLC0$00.00%−40,287−100.0%Sold out
Citadel Advisors LLC0$00.00%−29,563−100.0%Sold out
Tri Locum Partners LP0$00.00%−29,506−100.0%Sold out
Aigen Investment Management, LP0$00.00%−26,604−100.0%Sold out
Marshall Wace, LLP0$00.00%−11,085−100.0%Sold out
Jump Financial, LLC0$00.00%−8,439−100.0%Sold out
Sivik Global Healthcare LLC0$00.00%−8,000−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−6,295−100.0%Sold out
Chartwell Investment Partners, LLC0$00.00%−6,174−100.0%Sold out
Engineers Gate Manager LP0$00.00%−5,286−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−5,111−100.0%Sold out
Walleye Trading LLC0$00.00%−4,489−100.0%Sold out
Federated Hermes, Inc.0$00.00%−4,060−100.0%Sold out
HighVista Strategies LLC0$00.00%−4,056−100.0%Sold out
Howland Capital Management LLC0$00.00%−4,000−100.0%Sold out
Blueshift Asset Management, LLC0$00.00%−3,763−100.0%Sold out
Western Financial Corp0$00.00%−3,630−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−2,797−100.0%Sold out
Azzad Asset Management Inc0$00.00%−2,725−100.0%Sold out
Glenmede Trust Co NA0$00.00%−2,037−100.0%Sold out
Segall Bryant & Hamill, LLC0$00.00%−2,000−100.0%Sold out
E. Ohman J:or Asset Management AB0$00.00%−2,000−100.0%Sold out
Boston Private Wealth LLC0$00.00%−1,872−100.0%Sold out
Virtu Financial LLC0$00.00%−1,808−100.0%Sold out
Nomura Holdings Inc0$00.00%−1,572−100.0%Sold out
Los Angeles Capital Management LLC0$00.00%−1,507−100.0%Sold out
Delphia (USA) Inc.0$00.00%−1,490−100.0%Sold out
Marex Group plc0$00.00%−1,334−100.0%Sold out
Machina Capital S.A.S.0$00.00%−1,324−100.0%Sold out
Inceptionr LLC0$00.00%−1,279−100.0%Sold out
Meridian Financial, LLC0$00.00%−1,234−100.0%Sold out
Quintet Private Bank (Europe) S.A.0$00.00%−1,217−100.0%Sold out
Vident Investment Advisory, LLC0$00.00%−1,144−100.0%Sold out
Crossmark Global Holdings, Inc.0$00.00%−1,062−100.0%Sold out
SlateStone Wealth, LLC0$00.00%−1,100−100.0%Sold out
Fort Sheridan Advisors LLC0$00.00%−1,078−100.0%Sold out
Walleye Capital LLC0$00.00%−1,040−100.0%Sold out
Quantbot Technologies LP0$00.00%−699−100.0%Sold out
V-Square Quantitative Management LLC0$00.00%−279−100.0%Sold out
Bartlett & Co. LLC0$00.00%−100−100.0%Sold out
Bartlett & Co. Wealth Management LLC0$00.00%−100−100.0%Sold out
Elequin Capital LP0$00.00%−70−100.0%Sold out
Riverview Trust Co0$00.00%−67−100.0%Sold out