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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 2024

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 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
499
+6 vs. Q4 2023
Shares held
114.8M
−2.25M (−1.9%) vs. Q4 2023
Total value
$17.2B
−$5.24B (−23.4%) vs. Q4 2023
New holders
71
204 more added
Sold out
65
151 more reduced

8 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 499 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 2024: $17.2B
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 2024

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2023.

Institutions holding ALNY in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Souders Financial Advisors3,476$519.5K0.08%+529+18.0%Added
Sanders Morris Harris LLC3,500$523.1K0.10%00.0%Unchanged
Cetera Investment Advisers3,558$531.7K0.00%+2,388+204.1%Added
Lazard Asset Management LLC3,607$538.0K0.00%−15,897−81.5%Reduced
Captrust Financial Advisors3,639$543.8K0.00%−975−21.1%Reduced
Orion Capital Management LLC3,675$549.2K0.29%00.0%Unchanged
BI Asset Management Fondsmaeglerselskab A/S3,724$557.0K0.01%−45−1.2%Reduced
Exchange Traded Concepts, LLC3,788$566.1K0.01%−1,625−30.0%Reduced
Tokio Marine Asset Management Co Ltd3,849$575.2K0.03%+274+7.7%Added
Pathstone Holdings, LLC3,858$576.6K0.00%+974+33.8%Added
Prudential Financial Inc3,861$577.0K0.00%−305−7.3%Reduced
Ci Investments Inc.3,891$582.0K0.00%+1,540+65.5%Added
B. Metzler seel. Sohn & Co. AG3,918$585.5K0.01%+190+5.1%Added
Ethic Inc.3,976$594.2K0.02%−33−0.8%Reduced
Atlantic Trust, LLC3,981$595.0K0.16%00.0%Unchanged
First Hawaiian Bank4,000$597.8K0.02%00.0%Unchanged
Howland Capital Management LLC4,000$597.8K0.03%00.0%Unchanged
J.P. Marvel Investment Advisors, LLC4,000$597.8K0.10%00.0%Unchanged
Achmea Investment Management B.V.4,014$599.0K0.01%00.0%Unchanged
CIBC Asset Management Inc4,022$601.1K0.00%+8+0.2%Added
Teza Capital Management LLC4,026$601.7K0.08%−7,396−64.8%Reduced
Advisors Asset Management, Inc.4,037$603.3K0.01%+2,664+194.0%Added
Atom Investors LP4,137$618.3K0.08%+4,137New
MML Investors Services, LLC4,169$623.0K0.00%+217+5.5%Added
Stoneridge Investment Partners LLC4,200$628.0K0.24%+4,200New
Brandywine Managers, LLC4,348$649.8K0.64%00.0%Unchanged
Verition Fund Management LLC4,396$657.0K0.01%+4,396New
Gilbert & Cook, Inc.4,485$670.3K0.09%+42+0.9%Added
Plato Investment Management Ltd4,509$673.9K0.07%+4,346+2,666.3%Added
Commerce Bank4,656$695.8K0.00%−27−0.6%Reduced
Aviva PLC4,778$714.1K0.00%−3,149−39.7%Reduced
XTX Topco Ltd4,805$718.1K0.10%+4,805New
Shell Asset Management Co2,973$722.0K0.03%−828−21.8%Reduced
Creative Planning4,924$736.0K0.00%−148−2.9%Reduced
Quattro Financial Advisors LLC5,000$747.3K0.21%+4,809+2,517.8%Added
Beacon Investment Advisory Services, Inc.5,018$749.9K0.03%−437−8.0%Reduced
Alpha DNA Investment Management LLC5,129$766.5K0.42%+409+8.7%Added
CIBC World Markets Corp5,138$767.9K0.01%+1,656+47.6%Added
Commonwealth Equity Services, LLC5,594$836.0K0.00%+1,365+32.3%Added
S&CO Inc5,750$859.0K0.06%+5,750New
JustInvest LLC6,086$909.6K0.02%−304−4.8%Reduced
Ostrum Asset Management6,189$924.9K0.07%00.0%Unchanged
M&T Bank Corp6,426$960.5K0.00%−369−5.4%Reduced
US Bancorp6,560$980.4K0.00%−691−9.5%Reduced
MetLife Investment Management6,606$987.3K0.01%+102+1.6%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.6,630$991.0K0.00%−118,749−94.7%Reduced
Steel Peak Wealth Management LLC6,860$1.03M0.05%+4,090+147.7%Added
Bokf, NA6,712$1.03M0.02%+1,295+23.9%Added
Mariner, LLC6,894$1.03M0.00%−217−3.1%Reduced
Prelude Capital Management, LLC6,931$1.04M0.07%+5,275+318.5%Added
Cinctive Capital Management LP6,984$1.04M0.05%+6,984New
Panagora Asset Management Inc7,457$1.11M0.01%00.0%Unchanged
Assetmark, Inc7,581$1.13M0.00%+668+9.7%Added
Employees Retirement System of Texas7,717$1.15M0.01%+3,956+105.2%Added
Values First Advisors, Inc.7,738$1.16M0.68%+755+10.8%Added
Ategra Capital Management, LLC7,990$1.19M0.55%00.0%Unchanged
Amalgamated Bank8,053$1.20M0.01%−3,306−29.1%Reduced
Wealthfront Advisers LLC8,090$1.21M0.00%−3,495−30.2%Reduced
Nisa Investment Advisors, LLC8,155$1.22M0.01%00.0%Unchanged
PEAK6 Investments LLC8,197$1.23M0.06%+3,338+68.7%Added
Graham Capital Management, L.P.8,263$1.23M0.04%+8,263New
Stifel Financial Corp8,340$1.25M0.00%−3,318−28.5%Reduced
Vontobel Holding Ltd.8,691$1.30M0.01%−242−2.7%Reduced
ProShare Advisors LLC8,827$1.32M0.00%+809+10.1%Added
Nordea Investment Management AB8,980$1.37M0.00%+290+3.3%Added
Profund Advisors LLC9,270$1.39M0.05%+938+11.3%Added
Sumitomo Mitsui DS Asset Management Company, Ltd9,495$1.42M0.02%−28−0.3%Reduced
Maryland State Retirement & Pension System9,836$1.44M0.03%+385+4.1%Added
Toroso Investments, LLC10,281$1.54M0.03%+7,660+292.3%Added
Gulf International Bank (UK) Ltd10,328$1.54M0.04%00.0%Unchanged
FIL Ltd10,355$1.55M0.00%−66,482−86.5%Reduced
Point72 (DIFC) Ltd10,363$1.55M0.12%+10,363New
Cullen/Frost Bankers, Inc.10,562$1.58M0.02%+13+0.1%Added
Campbell & CO Investment Adviser LLC10,614$1.59M0.14%−12,757−54.6%Reduced
Rockefeller Capital Management L.P.10,715$1.60M0.00%−358−3.2%Reduced
Intech Investment Management LLC10,885$1.63M0.02%+3,344+44.3%Added
EFG Asset Management (Americas) Corp.10,886$1.63M0.50%−5,365−33.0%Reduced
Daiwa Securities Group Inc.10,921$1.63M0.01%+116+1.1%Added
Duality Advisers, LP11,197$1.67M0.17%−5,915−34.6%Reduced
NEOS Investment Management LLC11,369$1.70M0.11%+8,380+280.4%Added
Elo Mutual Pension Insurance Co11,467$1.71M0.04%+554+5.1%Added
Allianz Asset Management GmbH11,514$1.72M0.00%−2,275−16.5%Reduced
The PNC Financial Services Group, Inc.12,187$1.82M0.00%−931−7.1%Reduced
Toronto Dominion Bank12,986$1.94M0.00%−36,161−73.6%Reduced
Comerica Bank13,003$1.94M0.01%−360−2.7%Reduced
Pinebridge Investments, L.P.13,352$1.99M0.02%+3,171+31.1%Added
Bank of Nova Scotia13,363$2.00M0.00%+7,338+121.8%Added
Silvant Capital Management LLC13,661$2.04M0.10%00.0%Unchanged
Empowered Funds, LLC13,849$2.07M0.04%+524+3.9%Added
Public Employees Retirement Association of Colorado13,875$2.07M0.01%−522−3.6%Reduced
AIA Group Ltd14,644$2.19M0.07%00.0%Unchanged
British Columbia Investment Management Corp14,983$2.24M0.02%+599+4.2%Added
Boothbay Fund Management, LLC15,016$2.24M0.07%+15,016New
KBC Group NV15,096$2.26M0.01%+1,187+8.5%Added
Raymond James & Associates15,168$2.27M0.00%+882+6.2%Added
Connor, Clark & Lunn Investment Management Ltd.15,443$2.31M0.01%+15,443New
Twin Tree Management, LP15,510$2.32M0.05%+15,510New
Nissay Asset Management Corp15,577$2.33M0.02%+319+2.1%Added
Point72 Hong Kong Ltd15,971$2.39M0.12%+15,971New
Portman Square Capital LLP16,023$2.39M0.54%+10,060+168.7%Added