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Disclosery

ALNY ALNYLAM PHARMACEUTICALS INC

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Stock (common), issuer CIK 1178670

769 managers (793 13F filers) reported a position in ALNY shares at 2026-03-31, 131,400,732 shares in all. 92 filers opened a position and 156 filers sold out during the quarter.

Managers
769
13F filers
793
New
92
Added
323
Reduced
258
Sold out
156
Shares held by filers
131,400,732

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
SUPRAN BRYANofficer (EVP, CLO and Secretary)2026-10-02-1,758 S$226.88Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
OSSIAM24,183$8M0.14%+22,39713F-HRTimeline
Creative Planningin group Creative Planning24,122$7.98M0.01%+30713F-HRTimelineGroup
Voleon Capital Management LP24,074$7.97M0.17%-27,04313F-HRTimeline
Eurizon Capital SGR S.p.A.24,184$7.96M0.02%-22613F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…23,734$7.85M0.04%+1,26213F-HRTimelineGroup
OP Asset Management Ltd23,477$7.77M0.08%+8,70713F-HR/ATimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC23,415$7.75M0.01%-15,04413F-HRTimelineGroup
Cetera Investment Advisers23,173$7.67M0.01%+5,62413F-HRTimeline
IEQ CAPITAL, LLC22,871$7.57M0.04%-42,03413F-HRTimeline
MACKENZIE FINANCIAL CORP22,507$7.45M0.01%+10,11213F-HRTimeline
Varma Mutual Pension Insurance Co21,100$6.98M0.04%-5,00013F-HR/ATimeline
683 Capital Management, LLCin group 683 Capital Management, LLC21,000$6.95M0.64%+17,21813F-HRTimelineGroup
Utah Retirement Systems20,601$6.82M0.07%-12413F-HRTimeline
KBC Group NVin group KBC Group NV20,524$6.79M0.02%-327,67013F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…20,470$6.77M0.01%-17113F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC20,256$6.7M0.01%-4,32213F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding19,842$6.57M+3,284Timeline
Police & Firemen's Retirement System of…19,653$6.5M0.06%+35813F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC19,152$6.34M0.09%-11,41013F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS18,830$6.23M0.03%-1,20513F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK18,602$6.15M0.01%-4,59713F-HRTimelineGroup
Silvant Capital Management LLC18,258$6.04M0.21%+29413F-HRTimeline
Liontrust Investment Partners LLP18,218$6.03M0.1%-16913F-HR/ATimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …18,208$6.02M0.04%-5,01213F-HRTimeline
Public Sector Pension Investment Board18,014$5.96M0.02%new13F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.17,673$5.85M0.09%+6,35013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Slow Capital, Inc.17,461$5.78M0.75%new13F-HRTimeline
Portman Square Capital LLP16,924$5.6M0.85%+14,46713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC16,280$5.39M0.01%+6,12813F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD16,047$5.31M0.03%-9,23413F-HRTimelineGroup
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…15,943$5.28M0.04%+7413F-HRTimelineGroup
iA Global Asset Management Inc.15,922$5.27M0.07%-1,85813F-HRTimeline
MML INVESTORS SERVICES, LLC15,482$5.12M0.01%-2,16813F-HRTimeline
SHELTON CAPITAL MANAGEMENT14,837$4.91M0.11%-22713F-HRTimeline
PROFUND ADVISORS LLC14,647$4.85M0.18%-94213F-HRTimeline
Elo Mutual Pension Insurance Co14,621$4.84M0.08%-2,82013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC14,207$4.7M0.01%-1,82613F-HRTimelineGroup
LBP AM SA14,206$4.7M0.06%+6,41613F-HRTimeline
Rakuten Group, Inc.group of 2 filers holding14,449$4.57M+1,576Timeline
DARK FOREST CAPITAL MANAGEMENT LP13,707$4.54M0.4%+6,99213F-HRTimeline
HIMENSION CAPITAL (SINGAPORE) PTE. LTD.13,169$4.36M0.33%+2,98413F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …13,346$4.35M<0.01%+49113F-HRTimelineGroup
Empire Life Investments Inc.13,215$4.34M0.26%new13F-HRTimeline
Capula Management Ltdin group Capula Management Ltd13,115$4.34M0.04%-6613F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Bank Julius Baer & Co. Ltd, Zurich13,281$4.26M0.01%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC12,597$4.17M0.02%new13F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS12,503$4.14M0.01%-75213F-HRTimeline
Ilmarinen Mutual Pension Insurance Co12,500$4.14M0.03%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…12,445$4.12M0.02%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…12,322$4.08M<0.01%-35613F-HRTimelineGroup
Privium Fund Management B.V.12,222$4.04M0.84%new13F-HRTimeline
Traynor Capital Management, Inc.12,592$3.98M0.24%+1,02213F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A11,751$3.89M0.01%-9,78913F-HRTimelineGroup
Federation des caisses Desjardins du Qu…11,731$3.88M0.01%-81813F-HRTimeline
Wealthfront Advisers LLC11,587$3.83M0.01%-6,66713F-HRTimeline
CWM, LLCin group CWM, LLC11,580$3.83M0.01%-13,89513F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd11,361$3.76M0.07%new13F-HRTimeline
ASR Vermogensbeheer N.V.11,223$3.71M0.04%+20113F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.10,999$3.64M0.04%-3413F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC10,577$3.5M<0.01%+83213F-HRTimeline
Motley Fool Asset Management LLCin group Motley Fool Asset Management …10,492$3.47M0.15%-2,03413F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC10,429$3.45M0.02%+1913F-HRTimeline
PANAGORA ASSET MANAGEMENT INC10,343$3.42M0.01%-20,50013F-HRTimeline
Gulf International Bank (UK) Ltd10,197$3.37M0.08%+3,57013F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P10,114$3.35M0.08%+99013F-HRTimeline
Raiffeisen Bank International AGin group Raiffeisen Bank International…10,413$3.29M0.05%-1,09313F-HRTimelineGroup
AMALGAMATED BANK9,937$3.29M0.03%-74213F-HRTimeline
Atria Investments, Inc9,874$3.27M0.04%+3,70113F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …9,854$3.26M0.14%-46513F-HRTimelineGroup
PEAK6 LLCin group PEAK6 LLC9,716$3.21M0.09%+9,71413F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC9,637$3.19M0.02%-29013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…9,627$3.19M0.08%+3,78613F-HRTimelineGroup
Vestmark Advisory Solutions, Inc.9,589$3.17M0.04%+81113F-HRTimeline
Kestra Advisory Services, LLCgroup of 2 filers holding9,580$3.17M+1,715Timeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…9,568$3.17M0.01%+9,44113F-HRTimelineGroup
COMMERCE BANKin group COMMERCE BANK9,480$3.14M0.02%-1,05313F-HRTimelineGroup
BLAIR WILLIAM & CO/IL9,430$3.12M0.01%-34413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC9,357$3.1M0.01%-29213F-HRTimeline
Janney Montgomery Scott LLC9,339$3.09M0.01%+2,83613F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…9,303$3.08M0.26%+69713F-HRTimelineGroup
NewEdge Wealth, LLC9,201$3.04M0.04%+1,67113F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…8,952$2.96M0.03%-6,51413F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.8,775$2.9M0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Louisiana State Employees Retirement Sy…8,700$2.88M0.05%-10013F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV8,579$2.84M<0.01%-3,20713F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG8,475$2.8M0.03%+3,22313F-HRTimelineGroup
Employees Retirement System of Texas8,403$2.78M0.02%-1,38913F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding8,395$2.78M-6,230Timeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding8,394$2.78M+2,270Timeline
M&T Bank Corpin group M&T Bank Corp8,237$2.73M0.01%+27113F-HR/ATimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…8,478$2.7M0.01%-5,60913F-HRTimeline
ZACKS INVESTMENT MANAGEMENT7,857$2.6M0.02%-4,15113F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC7,852$2.6M0.1%-513F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…7,800$2.58M0.01%-38713F-HRTimelineGroup
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA7,798$2.58M<0.01%+4913F-HRTimelineGroup
AIA Group Ltdin group AIA Group Ltd7,742$2.56M0.04%-12,43513F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP7,701$2.55M<0.01%+1,59613F-HRTimelineGroup
PRUDENTIAL PLCin group PRUDENTIAL PLC7,696$2.55M0.01%-13313F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…7,471$2.47M0.68%+5,75413F-HRTimelineGroup
S&CO INC7,400$2.45M0.15%-80013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\7,381$2.44M<0.01%+2,14513F-HRTimelineGroup
J.P. Marvel Investment Advisors, LLC7,105$2.35M0.33%013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC7,072$2.34M0.01%+93313F-HRTimelineGroup
Osmosis Investment Management UK Ltd7,013$2.32M0.06%-69413F-HRTimeline
PKO Investment Management Joint-Stock Co6,800$2.25M0.19%013F-HRTimeline
Legato Capital Management LLC6,514$2.16M0.2%new13F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…group of 2 filers holding6,474$2.14M-9,442Timeline
Vident Advisory, LLCin group Vident Advisory, LLC6,457$2.14M0.02%+1,30213F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…6,437$2.13M<0.01%-1,68713F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding6,384$2.11M-4,794Timeline
Maryland State Retirement & Pension Sys…6,346$2.1M0.04%013F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP6,335$2.1M0.02%-3,49413F-HRTimelineGroup
Advisory Services Network, LLC6,314$2.09M0.03%-1,77913F-HRTimeline
Plato Investment Management Ltd6,249$2.07M0.14%-513F-HRTimeline
AG2R LA MONDIALE GESTION D'ACTIFS6,205$2.05M0.09%+61013F-HRTimeline
E Fund Management Co., Ltd.6,074$2.01M0.06%13F-HRTimeline
Fisher Asset Management, LLC6,045$2M<0.01%new13F-HRTimeline
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise5,978$1.98M0.07%-5,05913F-HRTimelineGroup
Daiichi Life Insurance Co., Ltd.in group Daiichi Life Insurance Co., L…5,930$1.96M0.06%-32513F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC5,902$1.95M<0.01%-305,38613F-HRTimelineGroup
Sanctuary Advisors, LLC5,839$1.93M0.01%-68113F-HRTimeline
Edgestream Partners, L.P.5,810$1.92M0.06%-1,43813F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS5,767$1.91M0.02%+813F-HRTimelineGroup
BRIGHTON JONES LLC5,699$1.89M0.04%new13F-HR/ATimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…5,697$1.89M0.02%-9,17213F-HRTimelineGroup
GROUP ONE TRADING LLC5,545$1.83M0.06%new13F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.5,476$1.81M0.01%+3,15713F-HRTimelineGroup
Aware Super Pty Ltd as trustee of Aware…5,473$1.81M0.03%13F-HRTimeline
Empowered Funds, LLC5,410$1.79M0.01%-14,02113F-HR/ATimeline
Integrated Wealth Concepts LLC5,374$1.78M0.01%+1,13413F-HRTimeline
Vestcor Inc5,319$1.76M0.05%+1,78613F-HRTimeline
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.5,280$1.75M0.06%+26513F-HRTimelineGroup
Fieldview Capital Management, LLC5,275$1.75M0.51%new13F-HRTimeline
Sterling Capital Management LLC5,182$1.71M0.03%+1,62513F-HRTimeline
Ishara Investments LP5,125$1.7M1.71%new13F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The4,959$1.64M0.02%+47213F-HRTimelineGroup
Saudi Central Bank4,876$1.61M0.03%new13F-HRTimeline
AustralianSuper Pty Ltd4,803$1.59M0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,776$1.58M0.05%013F-HRTimelineGroup
Orion Porfolio Solutions, LLC4,713$1.56M0.01%+30813F-HRTimeline
Strategic Global Advisors, LLC4,673$1.55M0.25%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…4,621$1.53M0.02%+18413F-HRTimelineGroup
AZZAD ASSET MANAGEMENT INC /ADV4,591$1.52M0.15%013F-HRTimeline
E. Ohman J:or Asset Management AB4,584$1.52M0.04%013F-HRTimeline
Sequoia Financial Advisors, LLC4,560$1.51M0.01%+34813F-HRTimeline
OMERS ADMINISTRATION Corp4,517$1.49M0.01%013F-HRTimeline
Pacer Advisors, Inc.4,478$1.48M<0.01%-5,11013F-HR/ATimeline
FORA Capital, LLC4,471$1.48M0.11%+1,00513F-HRTimeline
Laurion Capital Management LP4,431$1.47M0.14%new13F-HRTimeline
HOWLAND CAPITAL MANAGEMENT LLC4,234$1.4M0.06%-913F-HRTimeline
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…4,088$1.35M0.01%+1,63913F-HRTimelineGroup
Metis Global Partners, LLC4,049$1.34M0.03%-13613F-HRTimeline
North Dakota State Investment Board4,044$1.34M0.06%-74513F-HRTimeline
Faithward Advisors, LLC3,961$1.31M0.19%+18713F-HRTimeline
Gilbert & Cook, Inc.3,960$1.31M0.17%-5813F-HRTimeline
Advisors Asset Management, Inc.3,952$1.31M0.02%-35113F-HRTimeline
Clearstead Trust, LLC3,938$1.3M0.21%-2813F-HRTimeline
Ethic Inc.3,869$1.28M0.02%+65113F-HRTimeline
Quantitative Investment Management, LLC3,857$1.28M0.13%-47413F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…3,778$1.25M0.01%+2,03313F-HRTimelineGroup
Draper Asset Management, LLC3,773$1.25M0.71%+1,35113F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…3,640$1.2M0.08%+3,49313F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.3,611$1.19M0.01%-2,44113F-HRTimelineGroup
SummitTX Capital, L.P.3,611$1.19M0.04%+14613F-HRTimeline
Summit Trail Advisors, LLC3,598$1.19M0.02%+8413F-HRTimeline
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…3,507$1.16M0.03%+613F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC3,503$1.16M0.02%+28813F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…3,500$1.16M<0.01%013F-HRTimelineGroup
BURNEY CO/3,411$1.13M0.04%-1,17113F-HRTimeline
Spectrum Planning & Advisory Services I…3,350$1.11M0.55%013F-HRTimeline
Lombard Odier Asset Management (Switzer…3,320$1.1M0.04%new13F-HRTimeline
Kentucky Retirement Systemsgroup of 2 filers holding3,285$1.09M-7,836Timeline
SUMITOMO LIFE INSURANCE CO3,284$1.09M0.03%+9013F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC3,252$1.08M0.01%+89113F-HRTimeline
Values First Advisors, Inc.3,246$1.07M0.56%+2013F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…3,239$1.07M<0.01%-9613F-HRTimelineGroup
&PARTNERS3,230$1.07M0.01%+53313F-HRTimeline
J. Safra Sarasin Holding AGin group J. Safra Sarasin Holding AG3,230$1.07M0.02%-5,90813F-HRTimelineGroup
Generali Asset Management SPA SGR3,193$1.06M0.02%+3,14313F-HRTimeline
BRANDYWINE MANAGERS, LLCin group BRANDYWINE MANAGERS, LLC3,168$1.05M0.62%-45013F-HRTimelineGroup
SANDERS MORRIS HARRIS LLC3,150$1.04M0.17%new13F-HRTimeline
GRANDFIELD & DODD, LLC3,081$1.02M0.06%-4813F-HRTimeline
Callan Family Office, LLC3,035$1M0.02%-57913F-HRTimeline
GSA CAPITAL PARTNERS LLP2,990$989K0.06%new13F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC2,970$983K0.06%013F-HRTimeline
SBI Okasan Asset Management Co.Ltd.3,100$980K0.04%-19013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC2,956$978K<0.01%-10,35313F-HRTimelineGroup
Merit Financial Group, LLC2,903$960K0.01%-1,60813F-HRTimeline
Everhart Financial Group, Inc.2,901$960K0.08%+36013F-HRTimeline
Generali Investments CEE, investicni sp…2,900$960K0.05%013F-HRTimeline
Havemeyer Place LP2,878$952K0.11%+2,58013F-HRTimeline
Western Financial Corp/CA2,866$948K0.37%+13513F-HRTimeline
Orion Capital Management LLC2,855$945K0.33%-11213F-HRTimeline
Siemens Fonds Invest GmbH2,838$939K0.05%+1,00113F-HRTimeline
Robertson Stephens Wealth Management, L…2,836$938K0.03%+3613F-HRTimeline
Anchor Investment Management, LLC2,819$933K0.08%+12413F-HRTimeline
HALL LAURIE J TRUSTEE2,812$930K0.33%013F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC2,796$925K0.01%+40513F-HRTimelineGroup
THEORY FINANCIAL LLC2,744$908K0.32%013F-HRTimeline
FLPUTNAM INVESTMENT MANAGEMENT CO2,741$907K0.01%new13F-HRTimeline

Events

  • SUPRAN BRYAN sold 1,758 ALNY shares on 2026-10-02, Form 4 filed 2026-10-06. 0001178670-26-000068

    Accepted , ingested