Skip to content
Disclosery

BIIB BIOGEN INC

Follow

Stock (common), issuer CIK 875045

868 managers (885 13F filers) reported a position in BIIB shares at 2025-03-31, 129,830,947 shares in all. 107 filers opened a position and 105 filers sold out during the quarter.

Managers
868
13F filers
885
New
107
Added
333
Reduced
274
Sold out
105
Shares held by filers
129,830,947

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

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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
NorthCrest Asset Manangement, LLC34,532$4.73M0.14%+2,12613F-HRTimeline
KBC Group NVin group KBC Group NV34,340$4.7M0.01%+85013F-HRTimelineGroup
North Growth Management Ltd.34,000$4.65M0.98%+16,00013F-HRTimeline
STRS OHIO34,000$4.65M0.02%013F-HRTimeline
IFM Investors Pty Ltd33,729$4.62M0.05%+30413F-HR/ATimeline
Czech National Bank33,620$4.6M0.04%+2,02513F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…33,474$4.58M0.03%+2,49013F-HRTimeline
KIRR MARBACH & CO LLC /IN/33,444$4.58M1.06%+3,64613F-HRTimeline
MEITAV INVESTMENT HOUSE LTDin group MEITAV INVESTMENT HOUSE LTD33,400$4.57M0.08%-69,43813F-HRTimelineGroup
China Universal Asset Management Co., L…33,060$4.52M0.42%-29413F-HRTimeline
Orion Investment Co31,652$4.33M1.77%-6913F-HRTimeline
USS Investment Management Ltd31,498$4.31M0.03%013F-HRTimeline
PEAK6 LLCin group PEAK6 LLC30,622$4.19M0.16%+21,87113F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP29,791$4.08M0.01%+40713F-HRTimelineGroup
AMALGAMATED BANK28,454$3.89M0.03%+25313F-HRTimeline
ICICI Prudential Asset Management Co Ltd28,229$3.86M0.5%-2013F-HRTimeline
CWM, LLCin group CWM, LLC28,143$3.85M0.02%+12,41813F-HRTimelineGroup
BRITISH COLUMBIA INVESTMENT MANAGEMENT …27,873$3.81M0.02%-1513F-HRTimeline
CSM Advisors, LLC27,859$3.81M0.21%-30013F-HRTimeline
Arlington Partners LLCin group Arlington Trust Co LLC27,725$3.79M1.49%new13F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC27,480$3.76M0.01%+1,18813F-HRTimeline
Generali Investments CEE, investicni sp…27,060$3.7M0.35%013F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS26,825$3.67M0.02%-20,61613F-HRTimelineGroup
PROFUND ADVISORS LLC26,770$3.66M0.16%-1,85913F-HRTimeline
WOLVERINE TRADING, LLC26,284$3.64M0.12%-32,92913F-HRTimeline
Creative Planningin group Creative Planning26,572$3.64M<0.01%+2,02613F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\25,946$3.55M<0.01%+6,74313F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…25,195$3.45M<0.01%+2113F-HRTimelineGroup
FORA Capital, LLC24,991$3.42M0.35%+5,50513F-HRTimeline
Headlands Technologies LLC24,769$3.39M0.39%-3,60813F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…24,221$3.31M0.04%-5,60013F-HRTimeline
Utah Retirement Systems24,115$3.3M0.04%013F-HRTimeline
Mariner, LLCin group Mariner, LLC24,005$3.29M0.01%+5,03913F-HRTimelineGroup
Ilmarinen Mutual Pension Insurance Co24,000$3.28M0.03%013F-HRTimeline
Jain Global LLC23,376$3.2M0.07%new13F-HRTimeline
FORSTA AP-FONDEN23,000$3.15M0.02%-18,30013F-HRTimeline
SPHERA FUNDS MANAGEMENT LTD.in group SPHERA FUNDS MANAGEMENT LTD.22,738$3.11M0.77%013F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC22,707$3.11M0.04%-34313F-HRTimeline
NEOS Investment Management LLC22,698$3.11M0.06%+5,07413F-HRTimeline
BOKF, NAin group BOKF, NA22,662$3.1M0.05%+1,81013F-HRTimelineGroup
CWA Asset Management Group, LLC22,468$3.07M0.15%new13F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…22,269$3.05M0.03%-18913F-HRTimelineGroup
COMERICA BANK22,073$3.02M0.01%-11,62313F-HRTimeline
MIRAE ASSET SECURITIES (USA) INC.21,454$2.94M0.13%-18,65013F-HRTimeline
Police & Firemen's Retirement System of…21,110$2.89M0.03%013F-HRTimeline
XPONANCE LLC21,098$2.89M0.03%+36313F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson20,828$2.88M<0.01%+1,06513F-HRTimelineGroup
Lombard Odier Asset Management (Switzer…21,052$2.88M0.17%new13F-HRTimeline
SHELTON CAPITAL MANAGEMENT20,909$2.86M0.07%-29213F-HRTimeline
Public Sector Pension Investment Board20,107$2.75M0.01%+1,74513F-HRTimeline
Old North State Wealth Management, LLC19,904$2.72M1.52%+4,43713F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC19,864$2.72M0.02%+90513F-HRTimelineGroup
State of Alaska, Department of Revenue19,719$2.7M0.03%+54013F-HRTimeline
Kintegral Advisory, LLCin group Kintegral Advisory, LLC19,369$2.65M0.27%-6613F-HR/ATimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP19,076$2.61M<0.01%+6,32013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…19,049$2.61M<0.01%+2,60613F-HRTimeline
Rakuten Investment Management, Inc.18,708$2.59M0.01%13F-HRTimeline
SECTOR GAMMA AS18,639$2.55M0.82%-10,36113F-HRTimeline
Louisiana State Employees Retirement Sy…18,600$2.55M0.05%+20013F-HRTimeline
iA Global Asset Management Inc.18,342$2.51M0.04%+2,63613F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO18,315$2.51M<0.01%-14,37913F-HR/ATimelineGroup
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…18,158$2.48M0.03%+39713F-HRTimelineGroup
TRIGLAV INVESTMENTS, D.O.O.18,027$2.47M0.21%013F-HRTimeline
Janney Montgomery Scott LLC17,941$2.46M0.01%+5,62013F-HRTimeline
SYNOVUS FINANCIAL CORP17,928$2.45M0.03%+2,97413F-HRTimeline
Delta Global Management LP17,872$2.45M0.18%new13F-HRTimeline
Leo Wealth, LLC17,835$2.44M0.35%+3,90313F-HRTimeline
UniSuper Management Pty Ltd17,671$2.42M0.02%+1,18613F-HRTimeline
CIBC WORLD MARKETS CORP17,626$2.41M0.02%-8,61413F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC17,557$2.4M0.01%+14,35713F-HRTimelineGroup
Elo Mutual Pension Insurance Co17,508$2.4M0.05%+1,40813F-HRTimeline
Entropy Technologies, LP17,310$2.37M0.23%-17,08713F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…17,059$2.33M0.03%-43613F-HR/ATimelineGroup
Edgestream Partners, L.P.16,850$2.31M0.08%-3,28513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd16,743$2.29M0.12%+14,45913F-HRTimelineGroup
Quantinno Capital Management LP16,726$2.29M0.01%+10,44213F-HRTimeline
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA16,311$2.23M0.01%-4,24113F-HR/ATimelineGroup
LEVEL FOUR ADVISORY SERVICES, LLCin group LEVEL FOUR ADVISORY SERVICES,…16,154$2.21M0.09%+8,68513F-HRTimelineGroup
BEACON INVESTMENT ADVISORY SERVICES, IN…16,080$2.2M0.1%-3,52913F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.15,939$2.18M0.01%+67713F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP15,802$2.16M0.04%+1,30213F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding15,474$2.12M+11,696Timeline
OP Asset Management Ltd15,435$2.11M0.04%13F-HR/ATimeline
FARMERS TRUST CO14,861$2.03M0.38%+2,01213F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…8,225$2.02M0.06%-1,89413F-HRTimelineGroup
OSTRUM ASSET MANAGEMENT14,708$2.01M0.11%-17313F-HRTimeline
Avanza Fonder AB15,287$2.01M0.07%-24913F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…14,651$2M<0.01%-1,18513F-HR/ATimelineGroup
STONERIDGE INVESTMENT PARTNERS LLC14,599$2M1.69%-19,20013F-HRTimeline
Qsemble Capital Management, LP14,467$1.98M0.21%+11,40613F-HRTimeline
Aigen Investment Management, LP14,365$1.97M0.31%new13F-HRTimeline
INSPIRE TRUST CO, N.A.14,300$1.96M0.47%+2,00013F-HRTimeline
NorthCoast Asset Management LLC14,216$1.95M0.01%+10,31813F-HR/ATimeline
Kentucky Retirement Systemsgroup of 2 filers holding14,181$1.94M-4,194Timeline
Quantbot Technologies LP14,137$1.93M0.06%+11,66513F-HRTimeline
SPRUCEGROVE INVESTMENT MANAGEMENT LTD14,110$1.93M0.21%-83,74513F-HRTimeline
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)14,100$1.93M0.01%013F-HRTimelineGroup
AUXIER ASSET MANAGEMENT LLC13,547$1.85M0.28%-49913F-HRTimeline
E Fund Management Co., Ltd.13,387$1.83M0.09%+3,16013F-HRTimeline
Pallas Capital Advisors LLC13,345$1.83M0.08%+7,69413F-HRTimeline
BLAIR WILLIAM & CO/IL13,283$1.82M0.01%+23413F-HRTimeline
Cetera Investment Advisers12,608$1.73M<0.01%-66113F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND12,598$1.72M0.03%+11013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS12,582$1.72M<0.01%+2,87013F-HRTimeline
Provident Co of the Employees of the He…12,529$1.71M1.97%+3,47013F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG12,482$1.71M0.02%+2,35413F-HRTimelineGroup
GROUP ONE TRADING LLC12,377$1.69M0.07%-45,54413F-HRTimeline
M&T Bank Corpin group M&T Bank Corp12,302$1.68M0.01%-2,20713F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC12,159$1.66M0.01%new13F-HRTimelineGroup
EVOKE WEALTH, LLC11,830$1.62M0.04%+26213F-HRTimeline
CLARK ESTATES INC/NY11,796$1.61M0.34%-4,50413F-HRTimeline
MIZUHO SECURITIES USA LLC11,720$1.6M0.03%-2,09113F-HRTimeline
HighTower Advisors, LLC11,697$1.6M<0.01%+3,31213F-HRTimeline
SummitTX Capital, L.P.11,682$1.6M0.07%13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…11,669$1.6M0.01%-7,37413F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC11,713$1.6M0.01%+1,01013F-HRTimelineGroup
Norinchukin Bank, Thein group Norinchukin Bank, The11,574$1.58M0.03%+3,54213F-HRTimelineGroup
Campbell & CO Investment Adviser LLC11,573$1.58M0.12%-18,93613F-HRTimeline
TWIN CAPITAL MANAGEMENT INC11,542$1.58M0.18%+3,02913F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…11,213$1.53M0.01%+30113F-HRTimeline
THOR INVESTMENT MANAGEMENT INC /OH/ /ADV10,971$1.5M1.1%+2,00113F-HRTimeline
ONTARIO TEACHERS PENSION PLAN BOARDin group ONTARIO TEACHERS PENSION PLAN…10,849$1.48M0.02%new13F-HR/ATimelineGroup
Federation des caisses Desjardins du Qu…10,743$1.47M0.01%-65313F-HRTimeline
Daiichi Life Insurance Co., Ltd.in group Daiichi Life Insurance Co., L…10,719$1.47M0.04%013F-HRTimelineGroup
Metis Global Partners, LLC10,652$1.46M0.04%+3,65713F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …10,862$1.43M<0.01%+4,01913F-HRTimelineGroup
SIH Partners, LLLPin group SIH Partners, LLLP10,414$1.43M0.13%new13F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding10,188$1.39M+207Timeline
J. Safra Sarasin Holding AGin group J. Safra Sarasin Holding AG10,009$1.37M0.02%-52,86413F-HRTimelineGroup
Banque Cantonale Vaudoisein group Banque Cantonale Vaudoise9,832$1.34M0.06%13F-HRTimelineGroup
Baird Financial Group, Inc.in group Baird Financial Group, Inc.9,683$1.33M<0.01%+1,02313F-HRTimelineGroup
ExodusPoint Capital Management, LP9,482$1.3M0.02%new13F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …9,246$1.26M0.06%+67013F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.9,114$1.25M0.19%new13F-HRTimeline
Merit Financial Group, LLC8,997$1.23M0.02%+6,06613F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV8,925$1.22M<0.01%+2,45013F-HRTimeline
HARTFORD INVESTMENT MANAGEMENT CO8,867$1.21M0.04%-9113F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP8,802$1.2M<0.01%-87113F-HRTimelineGroup
Premier Path Wealth Partners, LLC8,712$1.19M0.19%+1,15613F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.8,668$1.19M<0.01%+1,88013F-HRTimeline
DOHJ, LLC8,592$1.18M0.27%-16113F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…8,416$1.15M0.03%+1,27813F-HRTimelineGroup
Cairn Investment Group, Inc.8,356$1.14M0.65%-713F-HRTimeline
AlphaQuest LLC8,327$1.14M0.12%-12,50413F-HRTimeline
CORNERCAP INVESTMENT COUNSEL INC8,111$1.11M0.58%-12813F-HRTimeline
Sterling Capital Management LLC8,101$1.11M0.02%-53513F-HRTimeline
GROUPAMA ASSET MANAGMENT7,932$1.1M0.02%-1,94013F-HRTimeline
MML INVESTORS SERVICES, LLC7,943$1.09M<0.01%+42813F-HRTimeline
Gulf International Bank (UK) Ltd7,924$1.08M0.04%-3,39913F-HRTimeline
Cinctive Capital Management LP7,894$1.08M0.09%new13F-HRTimeline
PKO Investment Management Joint-Stock Co7,800$1.07M0.12%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,794$1.07M<0.01%-1,16013F-HRTimelineGroup
WHITTIER TRUST CO OF NEVADA INC7,746$1.06M0.03%-8613F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC7,719$1.06M0.01%+5,84213F-HRTimelineGroup
SECURIAN ASSET MANAGEMENT, INC7,696$1.05M0.03%013F-HRTimeline
Linden Thomas Advisory Services, LLC7,689$1.05M0.14%+66213F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP7,515$1.04M<0.01%+2,55013F-HR/ATimelineGroup
Ethic Inc.7,855$1.04M0.02%-7,05713F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…7,511$1.03M<0.01%-12213F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC7,504$1.03M0.01%-1,74613F-HRTimeline
Orion Porfolio Solutions, LLC7,466$1.02M0.01%+62013F-HRTimeline
Orion Portfolio Solutions, LLC7,466$1.02M0.01%+62013F-HR/ATimeline
Koss-Olinger Consulting, LLC7,298$999K0.08%new13F-HRTimeline
GUARDIAN INVESTMENT MANAGEMENT7,300$999K0.84%013F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC7,257$993K<0.01%-340,30913F-HRTimelineGroup
AG2R LA MONDIALE GESTION D'ACTIFS7,641$992K0.05%13F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…7,067$967K0.01%-18,97913F-HRTimelineGroup
Empowered Funds, LLC7,054$965K0.01%+2,77713F-HRTimeline
COMMERCE BANKin group COMMERCE BANK6,963$953K0.01%-12213F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC6,890$943K<0.01%+3,44813F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC6,830$935K0.01%+5,44413F-HRTimelineGroup
NEW MEXICO EDUCATIONAL RETIREMENT BOARD6,824$934K0.03%-10013F-HRTimeline
Motley Fool Asset Management LLCin group Motley Fool Asset Management …6,809$932K0.05%+2,67613F-HRTimelineGroup
Maryland State Retirement & Pension Sys…6,809$932K0.02%-1,25513F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …6,680$914K0.01%-17,16013F-HRTimelineGroup
CI INVESTMENTS INC.in group CI INVESTMENTS INC.6,612$905K<0.01%-54413F-HRTimelineGroup
Investment Management Corp of Ontario6,578$900K0.02%+2,50813F-HRTimeline
INCEPTIONR LLC6,546$896K0.27%+74113F-HRTimeline
E. Ohman J:or Asset Management AB6,399$876K0.02%013F-HRTimeline
Advisors Asset Management, Inc.6,384$874K0.02%-23913F-HR/ATimeline
Missouri Trust & Investment Co6,325$866K0.3%+2,46013F-HRTimeline
World Investment Advisors6,294$861K0.02%-1713F-HRTimeline
MOGY JOEL R INVESTMENT COUNSEL INC6,260$857K0.06%-60013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…6,187$847K0.03%+13113F-HRTimelineGroup
Jacobi Capital Management LLC6,011$823K0.06%+2,06413F-HRTimeline
MONEY CONCEPTS CAPITAL CORP5,975$818K0.06%-3,20313F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP5,900$807K<0.01%-74,05213F-HRTimelineGroup
Gifford Fong Associates5,750$787K0.2%013F-HRTimeline
North Star Investment Management Corp.5,622$769K0.06%013F-HRTimeline
111 Capital5,620$769K0.15%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC5,599$766K0.04%+1,88713F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…5,489$751K<0.01%+2,24313F-HRTimelineGroup
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…6,193$732K0.01%-28613F-HRTimeline
Unison Advisors LLC5,327$729K0.09%+24913F-HRTimeline
CROWLEY WEALTH MANAGEMENT, INC.5,295$725K0.69%-88013F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…5,285$723K0.01%-1,32913F-HRTimelineGroup
Bridgefront Capital, LLC5,275$722K0.21%new13F-HRTimeline
Empirical Finance, LLC5,202$712K0.04%+18713F-HRTimeline
OMERS ADMINISTRATION Corp5,180$709K0.01%-86413F-HRTimeline
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.5,173$708K0.03%+90113F-HRTimelineGroup