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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
Cornerstone Planning Group LLC23$3.42K<0.01%+1413F-HRTimeline
Sugarloaf Wealth Management, LLC22$3.36K<0.01%013F-HRTimeline
Brown Shipley& Co Ltd22$3.36K<0.01%-2613F-HRTimeline
Abound Wealth Management21$3.21K<0.01%013F-HRTimeline
FIRST UNITED BANK & TRUST20$3.06K<0.01%013F-HRTimeline
SIERRA OCEAN, LLC20$3.06K<0.01%13F-HRTimeline
Avion Wealth21$3K<0.01%+913F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC18$2.75K<0.01%-7413F-HRTimeline
NewSquare Capital LLC18$2.75K<0.01%new13F-HRTimeline
Aster Capital Management (DIFC) Ltd18$2.75K<0.01%new13F-HRTimeline
Plante Moran Financial Advisors, LLC17$2.6K<0.01%-2013F-HRTimeline
AMERIFLEX GROUP, INC.18$2.59K<0.01%13F-HRTimeline
Strategic Investment Solutions, Inc. /IL10$2.59K<0.01%013F-HRTimeline
Winch Advisory Services, LLC16$2.45K<0.01%013F-HRTimeline
WOLFF WIESE MAGANA LLC16$2.45K<0.01%-2913F-HRTimeline
Darwin Wealth Management, LLC16$2.45K<0.01%013F-HR/ATimeline
Fortis Group Advisors, LLC15$2.29K<0.01%013F-HRTimeline
Iron Horse Wealth Management, LLC15$2.29K<0.01%new13F-HRTimeline
CarsonAllaria Wealth Management, Ltd.15$2.29K<0.01%013F-HRTimeline
Accredited Wealth Management, LLC15$2.29K<0.01%13F-HRTimeline
E Fund Management (Hong Kong) Co., Ltd.10$2K<0.01%+913F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT13$1.99K<0.01%013F-HRTimeline
Cape Investment Advisory, Inc.13$1.99K<0.01%+613F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…12$1.84K<0.01%new13F-HR/ATimeline
CAROLINAS WEALTH CONSULTING LLC12$1.84K<0.01%+1013F-HRTimeline
DHJJ Financial Advisors, Ltd.12$1.84K<0.01%-613F-HRTimeline
Bernard Wealth Management Corp.11$1.68K<0.01%13F-HR/ATimeline
Stonebridge Financial Group, LLC10$1.53K<0.01%13F-HRTimeline
Eagle Bay Advisors LLC9$1.38K<0.01%-1713F-HRTimeline
WPG Advisers, LLC9$1.38K<0.01%13F-HRTimeline
WR Wealth Planners, LLC8$1.22K<0.01%013F-HRTimeline
Cranbrook Wealth Management, LLC7$1.07K<0.01%013F-HRTimeline
CBIZ Investment Advisory Services, LLC7$1.07K<0.01%new13F-HRTimeline
Noble Wealth Management PBC7$1.07K<0.01%13F-HRTimeline
Coppell Advisory Solutions LLC7$1.05K<0.01%+213F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…7$999<0.01%013F-HRTimeline
ALBION FINANCIAL GROUP /UT6$918<0.01%new13F-HRTimeline
JFS WEALTH ADVISORS, LLC6$918<0.01%-4513F-HRTimeline
SOA Wealth Advisors, LLC.6$918<0.01%-613F-HR/ATimeline
Fairman Group, LLC6$918<0.01%013F-HRTimeline
LRI Investments, LLC6$918<0.01%-1913F-HRTimeline
ATWOOD & PALMER INC5$765<0.01%013F-HRTimeline
EVERMAY WEALTH MANAGEMENT LLC5$765<0.01%013F-HRTimeline
Global Financial Private Client, LLC5$765<0.01%-8513F-HRTimeline
NVWM, LLC4$612<0.01%+213F-HRTimeline
TFC Financial Management, Inc.3$459<0.01%013F-HRTimeline
Gould Capital, LLC3$459<0.01%new13F-HRTimeline
Valued Wealth Advisors LLC3$459<0.01%-513F-HRTimeline
Capital A Wealth Management, LLC3$459<0.01%13F-HRTimeline
STANCE CAPITAL LLC3$459<0.01%13F-HRTimeline
WINNACLE WEALTH LLC3$403<0.01%13F-HRTimeline
WestEnd Advisors, LLC2$306<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC2$306<0.01%-2413F-HRTimelineGroup
MPWM ADVISORY SOLUTIONS, LLC2$306<0.01%13F-HRTimeline
Activest Wealth Management1$153<0.01%new13F-HRTimeline
Parkworth Wealth Management, Inc.1$153<0.01%13F-HRTimeline
WealthTrak Capital Management LLC1$153<0.01%13F-HRTimeline
West Oak Capital, LLC45$69<0.01%013F-HR/ATimeline
American Capital Advisory, LLC0$10<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.
Pacific Center for Financial Services0$6<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.