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Disclosery

BIIB BIOGEN INC

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Stock (common), issuer CIK 875045

860 managers (879 13F filers) reported a position in BIIB shares at 2024-12-31, 132,356,097 shares in all. 69 filers opened a position and 160 filers sold out during the quarter.

Managers
860
13F filers
879
New
69
Added
301
Reduced
322
Sold out
160
Shares held by filers
132,356,097

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, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, 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
Empowered Funds, LLC4,277$654K0.01%-14,63113F-HRTimeline
TOKIO MARINE ASSET MANAGEMENT CO LTDin group TOKIO MARINE HOLDINGS, INC.4,272$653K0.02%013F-HRTimelineGroup
PINNACLE ASSOCIATES LTD4,254$651K0.01%-30313F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding4,224$646K-37,754Timeline
Crossmark Global Holdings, Inc.4,187$640K0.01%-2,87013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC4,179$639K0.01%+42313F-HRTimelineGroup
Motley Fool Asset Management LLCin group Motley Fool Asset Management …4,133$632K0.03%-1,72813F-HRTimelineGroup
Investment Management Corp of Ontario4,070$622K0.02%-80013F-HRTimeline
V-Square Quantitative Management LLC4,015$614K0.09%+18013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…4,006$613K0.02%013F-HRTimelineGroup
Cohen Klingenstein LLC4,000$612K0.02%013F-HRTimeline
Texas Yale Capital Corp.3,987$610K0.02%013F-HRTimeline
SHELL ASSET MANAGEMENT CO3,952$604K0.03%-10313F-HRTimeline
Jacobi Capital Management LLC3,947$604K0.05%+1,13213F-HRTimeline
SYON CAPITAL LLC3,937$602K0.05%+2,58013F-HRTimeline
GeoWealth Management, LLC3,903$597K0.02%+1,98613F-HRTimeline
NorthCoast Asset Management LLC3,898$596K<0.01%-1,37213F-HR/ATimeline
Missouri Trust & Investment Co3,865$591K0.21%-77713F-HRTimeline
SECTORAL ASSET MANAGEMENT INC3,852$589K0.39%-2,17513F-HRTimeline
Forum Financial Management, LPin group Forum Financial Management, LP3,804$582K0.01%+79613F-HR/ATimelineGroup
Lifeworks Advisors, LLC3,796$581K0.1%-97913F-HRTimeline
Focus Partners Wealthgroup of 2 filers holding3,778$578K-594Timeline
Wahed Invest LLC3,752$574K0.1%+21613F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC3,712$568K0.03%-17,49513F-HRTimelineGroup
South Dakota Investment Council3,613$552K0.01%013F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.3,608$552K0.01%new13F-HRTimelineGroup
Cornerstone Advisors, LLC3,600$551K0.02%013F-HRTimeline
Wedmont Private Capital3,670$546K0.03%+2,39213F-HRTimeline
ROBERTS GLORE & CO INC /IL/3,536$541K0.16%-14813F-HRTimeline
Ironwood Financial, llc3,535$541K0.11%013F-HRTimeline
ARGA Investment Management, LP3,532$540K0.02%+91013F-HRTimeline
Uncommon Cents Investing LLC3,465$530K0.16%-7513F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC3,442$526K<0.01%-28,65713F-HRTimelineGroup
Cambridge Investment Research Advisors,…3,439$526K<0.01%+23213F-HRTimeline
TOBAM3,358$514K0.16%-1,98713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Frank, Rimerman Advisors LLC3,337$510K0.04%new13F-HRTimeline
PANAGORA ASSET MANAGEMENT INC3,319$508K<0.01%-6,82713F-HRTimeline
Prime Capital Investment Advisors, LLC3,274$501K0.01%-1,80513F-HRTimeline
INVESTMENT HOUSE LLC3,269$500K0.03%013F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…3,246$496K<0.01%-11313F-HRTimelineGroup
RDA Financial Network3,210$491K0.14%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,200$489K<0.01%+74213F-HRTimelineGroup
HORIZON KINETICS ASSET MANAGEMENT LLC3,169$485K0.01%+12913F-HRTimeline
STEPHENS INC /AR/in group Stephens Investment Managemen…3,145$481K0.01%-2,27013F-HRTimelineGroup
Richwood Investment Advisors, LLC3,131$479K0.4%-30113F-HRTimeline
Qsemble Capital Management, LP3,061$468K0.06%+1,44613F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC3,045$466K0.1%-26,58013F-HRTimelineGroup
Sequoia Financial Advisors, LLC3,026$463K<0.01%+72913F-HR/ATimeline
Humankind Investments LLC3,010$460K0.12%+73913F-HRTimeline
Quarry LP3,005$460K0.09%new13F-HRTimeline
Northwest Bank & Trust Co2,855$459K0.34%+3413F-HRTimeline
GREAT VALLEY ADVISOR GROUP, INC.in group GREAT VALLEY ADVISOR GROUP, I…2,981$456K0.01%-24813F-HRTimelineGroup
KCM INVESTMENT ADVISORS LLC2,944$450K0.02%013F-HRTimeline
Merit Financial Group, LLC2,931$448K0.01%new13F-HRTimeline
CITIZENS & NORTHERN CORPin group CITIZENS & NORTHERN CORP2,894$443K0.12%-1,32813F-HRTimelineGroup
CIM INVESTMENT MANAGEMENT INC2,890$442K0.13%+1313F-HRTimeline
Enterprise Bank & Trust Co2,864$438K0.14%-1,13813F-HRTimeline
Advisor OS, LLCin group Advisor OS, LLC2,819$431K0.05%new13F-HRTimelineGroup
TOWNSQUARE CAPITAL LLC2,811$430K<0.01%-9,99713F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC2,795$427K0.01%+39813F-HRTimeline
Focus Financial Network, Inc.2,782$425K0.02%-2013F-HRTimeline
Laird Norton Wetherby Wealth Management…2,762$422K0.02%-28313F-HRTimeline
Kennondale Capital Management LLC2,760$422K0.46%13F-HR/ATimeline
Atom Investors LP2,745$420K0.05%new13F-HRTimeline
Massachusetts Wealth Management2,740$419K0.26%-13513F-HRTimeline
KLINGENSTEIN FIELDS & CO LP2,731$418K0.02%-22513F-HRTimeline
Advisory Services Network, LLC2,722$416K0.01%-48413F-HRTimeline
Stratos Wealth Partners, LTD.in group Stratos Wealth Partners, LTD.2,696$412K0.01%-50013F-HRTimelineGroup
Generali Investments, Management Co LLC2,678$410K0.11%13F-HRTimeline
Fernwood Investment Management, LLC2,660$407K0.14%-10013F-HRTimeline
Integrated Quantitative Investments LLC2,660$407K0.2%13F-HRTimeline
Bellevue Group AGin group Bellevue Group AG2,652$406K0.01%+1813F-HRTimelineGroup
EAGLE GLOBAL ADVISORS LLC2,625$401K0.02%013F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.2,604$398K<0.01%+6713F-HRTimeline
Fiduciary Trust Coin group Fiduciary Trust Co2,600$398K0.01%-63413F-HRTimelineGroup
WESTPAC BANKING CORPin group WESTPAC BANKING CORP2,585$395K0.03%+43613F-HRTimelineGroup
Aljian Capital Management, LLC2,560$391K0.09%-13413F-HRTimeline
Vestcor Inc2,536$388K0.01%-413F-HRTimeline
PRUDENTIAL PLCin group PRUDENTIAL PLC2,508$384K<0.01%013F-HRTimelineGroup
State of Wyoming2,505$383K0.05%new13F-HRTimeline
Tema ETFs LLC2,501$382K0.16%13F-HRTimeline
NJ State Employees Deferred Compensatio…2,500$382K0.05%013F-HRTimeline
Ramiah Investment Group2,494$381K0.35%+24013F-HRTimeline
Quantbot Technologies LP2,472$378K0.01%+1,69413F-HRTimeline
Independent Advisor Alliance2,469$378K0.01%-5,82013F-HRTimeline
Ballentine Partners, LLC2,440$373K0.01%+91113F-HRTimeline
TFB Advisors LLC2,434$372K0.11%-1313F-HRTimeline
Allegheny Financial Group2,426$371K0.1%-113F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK2,414$369K<0.01%+10613F-HRTimelineGroup
ORACLE INVESTMENT MANAGEMENT INC2,412$369K0.25%013F-HRTimeline
Chicago Partners Investment Group LLC2,445$369K0.01%+1,01513F-HRTimeline
Triangle Securities Wealth Management2,400$367K0.09%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
NewEdge Advisors, LLC2,379$364K<0.01%-2213F-HRTimeline
MJP ASSOCIATES INC /ADV2,347$359K0.06%new13F-HRTimeline
B. Riley Wealth Advisors, Inc.2,343$358K0.01%+9213F-HRTimeline
MISSION WEALTH MANAGEMENT, LP2,321$355K0.01%+25413F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC2,308$353K<0.01%-38413F-HRTimelineGroup
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC2,307$353K<0.01%-32313F-HRTimelineGroup
Fayez Sarofim & Coin group Fayez Sarofim & Co2,300$352K<0.01%013F-HRTimelineGroup
EXCHANGE TRADED CONCEPTS, LLC2,286$350K0.01%+62413F-HRTimeline
ASAHI LIFE ASSET MANAGEMENT CO., LTD.2,285$349K0.21%+48513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd2,284$349K0.03%-4,67113F-HRTimelineGroup
Cadence Bank2,281$349K0.02%-7013F-HRTimeline
Kestra Advisory Services, LLCgroup of 3 filers holding2,259$345K-1,437Timeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…2,251$344K0.14%+84313F-HRTimelineGroup
Avestar Capital, LLC2,245$343K0.03%+5813F-HRTimeline
SAX WEALTH ADVISORS, LLC2,203$337K0.03%new13F-HRTimeline
NAVELLIER & ASSOCIATES INC2,164$331K0.04%013F-HRTimeline
MUFG SECURITIES AMERICAS INC.2,151$329K0.04%13F-HRTimeline
Evercore Wealth Management, LLC2,142$328K<0.01%013F-HRTimeline
Lighthouse Financial LLC2,100$321K0.26%13F-HRTimeline
SIGNATUREFD, LLC2,092$320K0.01%+7113F-HRTimeline
SVB WEALTH LLC2,087$319K0.01%new13F-HRTimeline
Hennion & Walsh Asset Management, Inc.2,083$319K0.01%-3,43013F-HRTimeline
Callan Capital, LLC2,075$317K0.02%+97013F-HRTimeline
Capital Investment Advisors, LLC2,052$314K0.01%-16913F-HRTimeline
Horizon Investments, LLC2,041$312K0.01%-39713F-HRTimeline
Estabrook Capital Management2,033$311K0.05%013F-HRTimeline
Sanctuary Advisors, LLC2,123$310K<0.01%-1,84213F-HRTimeline
Freedom Investment Management, Inc.2,024$310K0.03%+15913F-HRTimeline
TRUST CO OF TOLEDO NA /OH/2,012$308K0.04%-20313F-HRTimeline
Caprock Group, LLC2,007$307K0.01%-1,11113F-HRTimeline
PHILADELPHIA TRUST CO2,000$306K0.02%013F-HRTimeline
Heritage Wealth Advisors2,000$306K0.02%013F-HRTimeline
Smith Group Asset Management, LLC2,000$306K0.02%new13F-HRTimeline
Northwest & Ethical Investments L.P.2,000$306K0.01%-5,42813F-HRTimeline
HUNTER ASSOCIATES INVESTMENT MANAGEMENT…1,986$304K0.05%-61413F-HRTimeline
NICOLET BANKSHARES INCgroup of 2 filers holding1,965$300K-1,359Timeline
Meiji Yasuda Asset Management Co Ltd.in group Meiji Yasuda Life Insurance Co1,960$300K0.01%-17213F-HRTimelineGroup
CARY STREET PARTNERS ASSET MANAGEMENT L…group of 2 filers holding1,937$296K+36Timeline
POINCIANA ADVISORS GROUP, LLC1,931$295K0.3%13F-HRTimeline
KENNEDY INVESTMENT GROUP, INC.1,921$294K0.13%-17213F-HRTimeline
FLPUTNAM INVESTMENT MANAGEMENT CO1,891$289K0.01%-5113F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC1,877$287K0.01%+71713F-HRTimelineGroup
FORBES J M & CO LLP1,869$286K0.03%013F-HRTimeline
Centiva Capital, LP1,858$284K0.01%-4,48713F-HRTimeline
PROATHLETE WEALTH MANAGEMENT LLC1,844$282K0.11%013F-HRTimeline
Vinva Investment Management Ltd1,874$281K0.01%new13F-HRTimeline
Rock Point Advisors, LLC1,840$281K0.08%013F-HRTimeline
Wealthfront Advisers LLC1,836$281K<0.01%-1,31613F-HR/ATimeline
Legacy Wealth Asset Management, LLC1,829$280K0.08%-34713F-HRTimeline
Atria Investments, Inc1,823$279K<0.01%-1,71513F-HRTimeline
PEAPACK GLADSTONE FINANCIAL CORP1,818$278K<0.01%+1513F-HRTimeline
CURA WEALTH ADVISORS, LLC1,812$277K0.12%13F-HRTimeline
HANCOCK WHITNEY CORP1,810$277K0.01%-28313F-HRTimeline
Trail Ridge Investment Advisors, LLC1,807$276K0.13%013F-HRTimeline
SBI Securities Co., Ltd.1,791$274K0.01%13F-HRTimeline
HighPoint Advisor Group LLC1,934$270K0.01%+38113F-HRTimeline
LGT Fund Management Co Ltd.1,744$267K0.02%013F-HRTimeline
WEALTHEDGE INVESTMENT ADVISORS, LLC1,734$265K0.12%13F-HRTimeline
SUMITOMO LIFE INSURANCE CO1,730$265K<0.01%-2,17613F-HRTimeline
Greenland Capital Management LP1,730$265K0.05%new13F-HRTimeline
MATHER GROUP, LLC.1,728$264K<0.01%+1,42813F-HRTimeline
Wealthspire Advisors, LLC1,712$262K<0.01%-18413F-HRTimeline
&PARTNERS1,721$262K<0.01%-47513F-HRTimeline
JOHNSON INVESTMENT COUNSEL INC1,679$257K<0.01%-38613F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1,670$255K<0.01%-1,92613F-HRTimeline
Trust Asset Management LLC1,662$254K0.02%013F-HRTimeline
Verdence Capital Advisors LLC1,655$253K0.02%-413F-HRTimeline
Sava Infond d.o.o.1,650$252K0.04%13F-HRTimeline
EntryPoint Capital, LLC1,639$251K0.11%+5513F-HRTimeline
Vise Technologies, Inc.1,636$250K0.02%new13F-HRTimeline
Atria Wealth Solutions, Inc.1,620$248K<0.01%-4413F-HRTimeline
denkapparat Operations GmbH1,620$248K0.37%13F-HRTimeline
D.A. DAVIDSON & CO.1,617$247K<0.01%-38613F-HRTimeline
Deseret Mutual Benefit Administrators1,612$247K0.12%+8713F-HRTimeline
Bleakley Financial Group, LLC1,608$246K0.01%+53513F-HRTimeline
Farther Finance Advisors, LLC1,595$244K0.01%-6,06113F-HRTimeline
Basepoint Wealth LLC1,590$243K0.19%-34713F-HRTimeline
AE Wealth Management LLC1,590$243K<0.01%new13F-HRTimeline
HB Wealth Management, LLC1,589$243K<0.01%+21313F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC1,553$237K0.01%+15513F-HRTimeline
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…1,545$236K<0.01%new13F-HRTimelineGroup
PERSONAL CFO SOLUTIONS, LLC1,545$236K0.05%-3713F-HRTimeline
Raiffeisen Bank International AGin group Raiffeisen Bank International…1,571$236K<0.01%13F-HRTimelineGroup
Beacon Pointe Advisors, LLC1,537$235K<0.01%+14913F-HRTimeline
Analyst IMS Investment Management Servi…in group Analyst IMS Investment Manage…1,527$234K0.01%013F-HRTimelineGroup
Plancorp, LLC1,522$233K0.01%-2713F-HRTimeline
Sovereign Investment Advisors, LLC1,520$232K0.07%new13F-HRTimeline
CIDEL ASSET MANAGEMENT INC1,512$231K0.02%+19113F-HRTimeline
KINGSWOOD WEALTH ADVISORS, LLC1,509$231K0.02%-90113F-HRTimeline
Supplemental Annuity Collective Trust o…1,500$229K0.07%013F-HRTimeline
Virtue Capital Management, LLC1,500$229K0.05%new13F-HRTimeline
B&D White Capital Company, LLC1,500$229K0.04%-30013F-HRTimeline
BERKSHIRE ASSET MANAGEMENT LLC/PA1,568$229K0.01%-46113F-HRTimeline
Integrated Advisors Network LLC1,495$229K0.01%-47213F-HRTimeline
CIGNA INVESTMENTS INC /NEWin group CIGNA INVESTMENTS INC /NEW1,494$228K0.04%013F-HRTimelineGroup
FineMark National Bank & Trust1,486$227K0.01%-12113F-HRTimeline
Western Wealth Management, LLC1,484$227K0.01%-10013F-HR/ATimeline
Steward Partners Investment Advisory, L…1,481$226K<0.01%-69113F-HRTimeline
Kapitalo Investimentos Ltda1,472$225K0.15%+29913F-HRTimeline
IFG Advisory, LLC1,471$225K0.01%new13F-HRTimeline
Marshall Financial Group, LLC1,468$224K0.05%-1213F-HRTimeline
WESBANCO BANK INC1,458$223K0.01%013F-HRTimeline
Prasad Wealth Partners, LLC1,450$222K0.07%13F-HRTimeline
Saratoga Research & Investment Manageme…1,448$221K0.01%-149,27213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,448$221K0.01%+1,25813F-HRTimelineGroup
Meeder Advisory Services, Inc.group of 2 filers holding1,446$221K-1,030Timeline
Livforsakringsbolaget Skandia, Omsesidi…1,430$219K0.01%013F-HRTimeline
United Bank1,423$218K0.09%-2,21313F-HRTimeline