Skip to main content

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 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 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
477
0 vs. Q1 2023
Shares held
118.6M
−995.1K (−0.8%) vs. Q1 2023
Total value
$22.5B
−$1.43B (−6.0%) vs. Q1 2023
New holders
54
163 more added
Sold out
54
156 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 477 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 2023: $22.5B
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 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2023.

Institutions holding ALNY in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Citigroup Inc61,204$11.6M0.01%−17,657−22.4%Reduced
Victory Capital Management Inc60,493$11.5M0.01%−377−0.6%Reduced
Public Employees Retirement System of Ohio60,258$11.4M0.05%−5,091−7.8%Reduced
Mirae Asset Global Investments Co., Ltd.58,451$11.1M0.02%−7,483−11.3%Reduced
Capital International Inc57,847$11.0M0.20%+6,555+12.8%Added
Teachers Retirement System of the State of Kentucky52,091$9.89M0.10%−10,362−16.6%Reduced
Integral Health Asset Management, LLC52,000$9.88M1.30%+32,000+160.0%Added
Man Group plc50,679$9.63M0.03%––
Asset Management One Co.,Ltd.49,405$9.38M0.04%+1,027+2.1%Added
Ensign Peak Advisors, Inc47,320$8.99M0.02%+7,745+19.6%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.46,499$8.83M0.02%+2,609+5.9%Added
CWM, LLC45,374$8.62M0.05%+43,648+2,528.9%Added
Great West Life Assurance Co44,937$8.59M0.02%+1,928+4.5%Added
Macquarie Group Ltd45,024$8.55M0.01%−705−1.5%Reduced
Rhenman & Partners Asset Management AB45,000$8.55M0.90%−31,000−40.8%Reduced
Rafferty Asset Management, LLC43,553$8.27M0.05%+5,362+14.0%Added
Storebrand Asset Management AS40,636$7.72M0.04%−977−2.3%Reduced
Andra AP-fonden40,500$7.69M0.19%−4,700−10.4%Reduced
Worldquant Millennium Advisors LLC40,287$7.65M0.13%+21,949+119.7%Added
Sphera Funds Management Ltd.40,000$7.60M1.63%+40,000New
Driehaus Capital Management LLC39,038$7.41M0.09%+2,778+7.7%Added
Korea Investment CORP38,915$7.39M0.02%+1,656+4.4%Added
BNP Paribas Arbitrage, SA38,581$7.33M0.01%−32,502−45.7%Reduced
Rosenblum Silverman Sutton S F Inc37,153$7.06M2.33%−390−1.0%Reduced
Jane Street Group, LLC36,642$6.96M0.01%−36,227−49.7%Reduced
Brown Advisory Inc35,588$6.76M0.01%+4,290+13.7%Added
LMR Partners LLP34,695$6.59M0.15%+13,551+64.1%Added
Arizona State Retirement System33,820$6.42M0.05%−1,947−5.4%Reduced
Teacher Retirement System of Texas32,266$6.13M0.04%+3,479+12.1%Added
Toronto Dominion Bank30,862$5.86M0.01%−3,317−9.7%Reduced
HSBC Holdings PLC30,677$5.83M0.01%−8,617−21.9%Reduced
Mackenzie Financial Corp30,096$5.71M0.01%+4,299+16.7%Added
USS Investment Management Ltd30,025$5.71M0.07%00.0%Unchanged
STRS Ohio30,000$5.70M0.02%+25,472+562.5%Added
Sectoral Asset Management Inc29,826$5.67M0.94%+3,256+12.3%Added
SEI Investments Co29,763$5.65M0.01%+2,473+9.1%Added
Citadel Advisors LLC29,563$5.62M0.01%−74,773−71.7%Reduced
Tri Locum Partners LP29,506$5.60M2.09%+29,506New
Segantii Capital Management Ltd28,800$5.47M0.33%+28,800New
Erste Asset Management GmbH28,510$5.45M0.10%00.0%Unchanged
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund28,515$5.42M0.07%−1,400−4.7%Reduced
EFG Asset Management (North America) Corp.28,151$5.35M1.15%+416+1.5%Added
Sector Gamma AS28,067$5.33M1.19%+678+2.5%Added
Allspring Global Investments Holdings, LLC27,889$5.30M0.01%−6,492−18.9%Reduced
Russell Investments Group, Ltd.27,553$5.25M0.01%−545−1.9%Reduced
Wealthfront Advisers LLC27,646$5.25M0.02%−6,667−19.4%Reduced
Robeco Institutional Asset Management B.V.27,143$5.16M0.01%−25,615−48.6%Reduced
Aigen Investment Management, LP26,604$5.05M0.75%+11,978+81.9%Added
Banque Pictet & Cie SA26,578$5.05M0.04%+21,471+420.4%Added
DnB Asset Management AS25,314$4.81M0.03%+1,996+8.6%Added
Forsta Ap-Fonden24,900$4.73M0.05%−900−3.5%Reduced
IFM Investors Pty Ltd24,377$4.63M0.06%+575+2.4%Added
Standard Life Aberdeen plc23,584$4.48M0.01%+130+0.6%Added
Tredje AP-fonden22,368$4.25M0.06%−3,720−14.3%Reduced
Kornitzer Capital Management Inc22,000$4.18M0.08%+22,000New
Principal Financial Group Inc21,662$4.11M0.00%+678+3.2%Added
Utah Retirement Systems21,225$4.03M0.06%−600−2.7%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)20,406$3.88M0.02%+460+2.3%Added
CWM Advisors, LLC19,859$3.77M0.46%+3,404+20.7%Added
Guggenheim Capital LLC19,666$3.74M0.03%−320−1.6%Reduced
Capital Group Investment Management Pte. Ltd.19,468$3.70M0.18%00.0%Unchanged
Envestnet Asset Management Inc18,843$3.58M0.00%+3,477+22.6%Added
Mariner, LLC17,835$3.39M0.01%−1,531−7.9%Reduced
Federation des caisses Desjardins du Quebec17,206$3.27M0.03%−10,069−36.9%Reduced
Allianz Asset Management GmbH16,595$3.15M0.01%−2,052−11.0%Reduced
Artia Global Partners LP15,971$3.03M1.05%00.0%Unchanged
EFG Asset Management (Americas) Corp.15,735$2.99M0.69%+556+3.7%Added
Efg Capital International Corp.15,735$2.99M0.69%+15,735New
The PNC Financial Services Group, Inc.15,704$2.98M0.00%+96+0.6%Added
Public Employees Retirement Association of Colorado15,690$2.98M0.01%00.0%Unchanged
Point72 Middle East FZE15,407$2.93M0.16%+15,407New
Karani Asset Management LLC15,245$2.90M2.92%−471−3.0%Reduced
Xponance, Inc.14,875$2.83M0.04%−1,963−11.7%Reduced
LPL Financial LLC14,875$2.83M0.00%+165+1.1%Added
Sabadell Asset Management, S.A S.G.I.I.C14,642$2.78M0.58%−1,029−6.6%Reduced
Nissay Asset Management Corp14,236$2.70M0.02%−280−1.9%Reduced
KBC Group NV14,120$2.68M0.01%−13,886−49.6%Reduced
Silvant Capital Management LLC13,661$2.59M0.15%00.0%Unchanged
Amalgamated Bank13,146$2.50M0.02%−932−6.6%Reduced
China Universal Asset Management Co., Ltd.13,072$2.48M0.77%+9,868+308.0%Added
Caisse de Depot Et Placement du Quebec12,711$2.41M0.01%−2,189−14.7%Reduced
AIA Group Ltd12,594$2.39M0.12%+6,910+121.6%Added
Gulf International Bank (UK) Ltd12,570$2.39M0.06%−3,691−22.7%Reduced
Raymond James & Associates11,813$2.24M0.00%+1,230+11.6%Added
Gateway Investment Advisers LLC11,558$2.20M0.03%+486+4.4%Added
Edgestream Partners, L.P.11,545$2.19M0.20%+3,872+50.5%Added
Liontrust Investment Partners LLP11,223$2.13M0.03%−22,006−66.2%Reduced
British Columbia Investment Management Corp11,177$2.12M0.02%+219+2.0%Added
Marshall Wace, LLP11,085$2.11M0.00%+11,085New
Cullen/Frost Bankers, Inc.10,549$2.00M0.03%00.0%Unchanged
Daiwa Securities Group Inc.10,519$2.00M0.01%+71+0.7%Added
Parametrica Management Ltd10,246$1.95M3.75%+4,293+72.1%Added
Elo Mutual Pension Insurance Co10,198$1.94M0.06%+10,198New
Beacon Investment Advisory Services, Inc.10,156$1.93M0.09%−301−2.9%Reduced
Oregon Public Employees Retirement Fund10,128$1.92M0.02%−10,100−49.9%Reduced
Jefferies Financial Group Inc.9,907$1.88M0.04%+5,367+118.2%Added
Portman Square Capital LLP9,768$1.86M0.33%+4,876+99.7%Added
Tower Research Capital LLC (TRC)9,571$1.82M0.06%+8,895+1,315.8%Added
Sumitomo Mitsui DS Asset Management Company, Ltd9,549$1.81M0.03%+1,259+15.2%Added
Maryland State Retirement & Pension System9,451$1.80M0.04%−214−2.2%Reduced