Skip to content
Disclosery

BIIB BIOGEN INC

Follow

Stock (common), issuer CIK 875045

980 managers (1,004 13F filers) reported a position in BIIB shares at 2025-12-31, 139,827,201 shares in all. 137 filers opened a position and 82 filers sold out during the quarter.

Managers
980
13F filers
1,004
New
137
Added
322
Reduced
296
Sold out
82
Shares held by filers
139,827,201

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 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
Spire Wealth Managementin group Spire Wealth Management159$28K<0.01%-713F-HRTimelineGroup
Addison Advisors LLC151$26.6K0.01%-1613F-HRTimeline
OGOREK ANTHONY JOSEPH /NY/ /ADV152$26K0.01%-2013F-HRTimeline
WPG Advisers, LLC145$25.5K0.02%+11713F-HRTimeline
Reflection Asset Management141$24.8K0.02%13F-HRTimeline
STEPH & CO137$24.1K0.01%+5813F-HRTimeline
NBT BANK, N.A.in group NBT BANK, N.A.126$22.2K<0.01%-10813F-HRTimelineGroup
SITTNER & NELSON, LLC110$22.1K0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC124$21.8K<0.01%+12213F-HRTimelineGroup
Bell Investment Advisors, Inc124$21.8K<0.01%-4813F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.115$20.2K<0.01%-413F-HRTimelineGroup
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp115$20.2K<0.01%013F-HRTimelineGroup
Concord Wealth Partnersin group Concord Wealth Partners114$20.1K<0.01%013F-HRTimelineGroup
Intesa Sanpaolo S.p.A.in group Intesa Sanpaolo S.p.A.110$19.4K<0.01%13F-HR/ATimelineGroup
GPS Wealth Strategies Group, LLC110$19.4K0.02%-53513F-HRTimeline
Bruce G. Allen Investments, LLC110$19.4K0.01%013F-HRTimeline
Torren Management, LLC107$18.8K0.01%13F-HRTimeline
Fideuram Asset Management (Ireland) dac126$18.8K<0.01%13F-HRTimeline
Graney & King, LLC106$18.7K0.01%013F-HRTimeline
KERR FINANCIAL PLANNING Corp100$18.5K0.03%new13F-HR/ATimeline
Strategic Wealth Partners, Ltd.105$18.5K<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC103$18.1K<0.01%13F-HRTimeline
Merrithew & Thorsten Inc106$18K0.02%13F-HRTimeline
CKW FINANCIAL GROUP100$18K<0.01%013F-HRTimeline
DELTA ASSET MANAGEMENT LLC/TN100$17.6K<0.01%013F-HRTimeline
Independence Bank of Kentucky100$17.6K<0.01%+2513F-HRTimeline
Strengthening Families & Communities, L…100$17.6K0.01%013F-HRTimeline
BROADWATER CAPITAL MANAGEMENT LLC100$17.6K0.01%013F-HRTimeline
Clayton Financial Group LLC97$17.1K0.01%+1013F-HRTimeline
High Note Wealth, LLC96$16.9K<0.01%-313F-HRTimeline
VSM Wealth Advisory, LLC92$16.2K<0.01%013F-HRTimeline
SWISS RE LTDin group SWISS RE LTD90$15.8K<0.01%13F-HRTimelineGroup
Ransom Advisory, Ltd90$15.8K0.01%013F-HRTimeline
Quent Capital, LLC89$15.7K<0.01%+713F-HRTimeline
Catalyst Capital Advisors LLC88$15.5K<0.01%+1913F-HRTimeline
Centerpoint Advisors, LLC83$15K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.85$15K<0.01%-1813F-HRTimeline
Grove Bank & Trust85$15K<0.01%+3413F-HRTimeline
Brown Shipley& Co Ltd85$15K0.01%013F-HRTimeline
RMG Wealth Management LLC85$14.8K<0.01%+513F-HRTimeline
Hara Capital LLC84$14.8K0.01%013F-HRTimeline
Asset Planning,Inc84$14.8K0.01%013F-HRTimeline
ADIRONDACK TRUST CO80$14.1K<0.01%013F-HRTimeline
Red Tortoise LLC80$14.1K0.01%-913F-HRTimeline
Steigerwald, Gordon & Koch Inc.79$13.9K<0.01%013F-HRTimeline
Cetera Trust Company, N.A75$13.2K0.01%013F-HRTimeline
ADKINS SEALE CAPITAL MANAGEMENT LLC75$13.2K0.01%13F-HRTimeline
Medallion Wealth Advisors, LLC73$12.8K<0.01%013F-HRTimeline
Sachetta, LLC70$12.3K0.01%013F-HRTimeline
Smallwood Wealth Investment Management,…70$12.3K0.01%013F-HRTimeline
Avion Wealth72$12K<0.01%-113F-HRTimeline
FIRST COMMUNITY TRUST NA65$11.4K0.01%013F-HRTimeline
JFS WEALTH ADVISORS, LLC63$11.1K<0.01%+5813F-HRTimeline
Private Wealth Asset Management, LLC63$11.1K<0.01%013F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC62$10.9K<0.01%013F-HRTimeline
Westfuller Advisors, LLC59$10.4K<0.01%+3313F-HRTimeline
ORG Partners LLC58$10.2K<0.01%+1513F-HRTimeline
Asset Dedication, LLC57$10K<0.01%013F-HRTimeline
Salomon & Ludwin, LLC57$9.95K<0.01%013F-HRTimeline
Global X Japan Co., Ltd.55$9.68K<0.01%new13F-HRTimeline
Physician Wealth Advisors, Inc.53$9.33K<0.01%013F-HRTimeline
Private Wealth Management Group, LLC52$9.15K<0.01%-213F-HRTimeline
Quattro Advisors LLC52$9.15K0.01%13F-HRTimeline
LRI Investments, LLC52$9.12K<0.01%+4613F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC51$8.97K<0.01%+1613F-HRTimeline
CBIZ Investment Advisory Services, LLC51$8.97K<0.01%013F-HRTimeline
Tradewinds Capital Management, LLC50$8.8K<0.01%013F-HRTimeline
Clearstead Trust, LLC50$8.8K<0.01%+913F-HRTimeline
Financial Freedom, LLC50$8.8K<0.01%013F-HRTimeline
Millstone Evans Group, LLC50$8.8K0.01%013F-HRTimeline
Kilter Group LLC49$8.62K<0.01%+1413F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.43$7.57K<0.01%+313F-HRTimelineGroup
BARTLETT & CO. WEALTH MANAGEMENT LLC43$7.57K<0.01%013F-HRTimeline
McIlrath & Eck, LLC43$7.51K<0.01%013F-HRTimeline
DT Investment Partners, LLC42$7.39K<0.01%new13F-HRTimeline
Cornerstone Planning Group LLC41$7.17K<0.01%+3913F-HRTimeline
Anchor Investment Management, LLC40$7.04K<0.01%013F-HRTimeline
Bank Julius Baer & Co. Ltd, Zurich40$7.04K<0.01%013F-HRTimeline
Cornerstone Financial Management LLC39$6.86K0.01%13F-HR/ATimeline
WEBSTER BANK, N. A.36$6.34K<0.01%013F-HRTimeline
Rosenberg Matthew Hamilton35$6.16K<0.01%013F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp33$5.81K<0.01%+613F-HRTimelineGroup
Sunbelt Securities, Inc.33$5.81K<0.01%-213F-HRTimeline
Truvestments Capital LLC33$5.81K<0.01%013F-HRTimeline
Fortitude Family Office, LLC32$5.63K<0.01%+1213F-HRTimeline
Howard Hughes Medical Institute31$5.46K<0.01%013F-HRTimeline
GHP Investment Advisors, Inc.31$5.46K<0.01%013F-HRTimeline
CALDWELL SUTTER CAPITAL, INC.30$5.28K<0.01%-413F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC30$5.28K<0.01%013F-HRTimelineGroup
BARRETT & COMPANY, INC.30$5.28K<0.01%013F-HRTimeline
Marquette Asset Management, LLC30$5.28K<0.01%013F-HRTimeline
Byrne Asset Management LLC30$5.28K<0.01%-813F-HRTimeline
Tower View Wealth Management LLC29$5.1K<0.01%013F-HRTimeline
American Wealth Advisors, LLC29$5.1K0.01%013F-HRTimeline
Align Financial, LLC4,928$4.93K<0.01%13F-HRTimeline
Bangor Savings Bank28$4.93K<0.01%013F-HRTimeline
J.Safra Asset Management Corp27$4.75K<0.01%+1213F-HRTimeline
Pinnacle Bancorp, Inc.27$4.75K<0.01%-513F-HRTimeline
Abound Wealth Management26$4.53K<0.01%+413F-HRTimeline
TUCKER ASSET MANAGEMENT LLC25$4.4K<0.01%new13F-HRTimeline
Hughes Financial Services, LLC25$4.4K<0.01%013F-HRTimeline
OPTIMA CAPITAL LLC25$4.4K<0.01%new13F-HRTimeline
Ares Financial Consulting, LLC25$4.4K<0.01%13F-HRTimeline
CONSULTIVA WEALTH MANAGEMENT, CORP.25$4.4K0.01%013F-HRTimeline
Colonial Trust Advisorsgroup of 2 filers holding23$4.05K0Timeline
Roble, Belko & Company, Inc25$4K<0.01%013F-HRTimeline
Motiv8 Investments LLC23$4K<0.01%new13F-HRTimeline
Garner Asset Management Corp22$3.87K<0.01%new13F-HRTimeline
Prosperity Bancshares Inc21$3.7K<0.01%13F-HRTimeline
FIRST UNITED BANK & TRUST20$3.52K<0.01%013F-HRTimeline
Vision Retirement, LLC20$3.52K<0.01%13F-HRTimeline
Nvest Wealth Strategies, Inc.19$3.34K<0.01%13F-HRTimeline
AMERIFLEX GROUP, INC.18$3.17K<0.01%-1813F-HRTimeline
E Fund Management (Hong Kong) Co., Ltd.17$3.04K<0.01%-8213F-HRTimeline
Plante Moran Financial Advisors, LLC17$2.99K<0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…17$2.94K<0.01%-213F-HRTimelineGroup
Financial Management Professionals, Inc.16$2.82K<0.01%013F-HRTimeline
NVWM, LLC16$2.82K<0.01%+213F-HRTimeline
Darwin Wealth Management, LLC16$2.81K<0.01%013F-HRTimeline
Fortis Group Advisors, LLC15$2.64K<0.01%013F-HRTimeline
DiNuzzo Private Wealth, Inc.14$2.46K<0.01%+1213F-HRTimeline
Rossby Financial, LCC14$2.46K<0.01%new13F-HRTimeline
Godfrey Financial Associates, Inc.14$2.46K<0.01%13F-HRTimeline
HOLLENCREST CAPITAL MANAGEMENT13$2.29K<0.01%013F-HRTimeline
Bare Financial Services, Inc13$2.29K<0.01%+313F-HRTimeline
Bay Harbor Wealth Management, LLC13$2.29K<0.01%+1113F-HRTimeline
WestEnd Advisors, LLC12$2.11K<0.01%+813F-HRTimeline
SJS Investment Consulting Inc.12$2.11K<0.01%new13F-HRTimeline
Rialto Wealth Management, LLC12$2.11K<0.01%+313F-HRTimeline
WINNACLE WEALTH LLC12$2.11K<0.01%+913F-HRTimeline
Penserra Capital Management LLCin group Penserra Capital Management L…12$2K<0.01%-5,03313F-HRTimelineGroup
Crewe Advisors LLC11$1.94K<0.01%013F-HRTimeline
Park Place Capital Corp11$1.94K<0.01%013F-HRTimeline
Bernard Wealth Management Corp.11$1.94K<0.01%013F-HRTimeline
Indiana Trust & Investment Management Co10$1.76K<0.01%013F-HRTimeline
1 NORTH WEALTH SERVICES LLC10$1.76K<0.01%013F-HRTimeline
Strategic Investment Solutions, Inc. /IL10$1.76K<0.01%013F-HRTimeline
Mowery & Schoenfeld Wealth Management, …10$1.76K<0.01%new13F-HRTimeline
MidFirst Bank10$1.76K<0.01%13F-HRTimeline
1015 Capital Partners, LLC10$1.76K<0.01%13F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…10$1.76K<0.01%new13F-HRTimeline
AdvisorNet Financial, Inc9$1.58K<0.01%013F-HRTimeline
Wealth Preservation Advisors, LLC9$1.58K<0.01%013F-HRTimeline
IMG Wealth Management, Inc.9$1.58K<0.01%013F-HRTimeline
Wealth Watch Advisors, INC9$1.58K<0.01%013F-HRTimeline
American Capital Advisory, LLC8$1.42K<0.01%013F-HRTimeline
Cape Investment Advisory, Inc.7$1.23K<0.01%013F-HRTimeline
Clark Wealth Partners7$1.23K<0.01%013F-HRTimeline
ALBION FINANCIAL GROUP /UT6$1.06K<0.01%013F-HRTimeline
Quaker Wealth Management, LLC6$1.06K<0.01%013F-HRTimeline
VALLEY NATIONAL ADVISERS INC8$1K<0.01%new13F-HRTimeline
Smithfield Trust Co6$1K<0.01%new13F-HRTimeline
Sound Income Strategies, LLC6$987<0.01%new13F-HRTimeline
Three Bearings Fiduciary Advisors, Inc.5$900<0.01%13F-HRTimeline
Dunhill Financial, LLC5$893<0.01%+213F-HRTimeline
ATWOOD & PALMER INC5$880<0.01%013F-HRTimeline
EVERMAY WEALTH MANAGEMENT LLC5$880<0.01%013F-HRTimeline
Geneos Wealth Management Inc.5$880<0.01%-2413F-HRTimeline
WOLFF WIESE MAGANA LLC5$880<0.01%013F-HRTimeline
HFM Investment Advisors, LLC5$880<0.01%+413F-HRTimeline
CHILTON CAPITAL MANAGEMENT LLC4$704<0.01%new13F-HRTimeline
FINANCIAL CONSULATE, INC4$704<0.01%013F-HRTimeline
TFC Financial Management, Inc.4$704<0.01%013F-HRTimeline
Breakwater Investment Management4$704<0.01%013F-HRTimeline
Signature Equity Partners, LLC4$704<0.01%13F-HRTimeline
DecisionPoint Financial, LLC3$528<0.01%013F-HRTimeline
Fairman Group, LLC3$528<0.01%-313F-HRTimeline
Turning Point Benefit Group, Inc.3$527<0.01%013F-HRTimeline
CURIO WEALTH, LLC2$353<0.01%new13F-HRTimeline
COUNTRY TRUST BANK2$352<0.01%013F-HRTimeline
Quantbot Technologies LP2$352<0.01%-68813F-HRTimeline
Davis Capital Management2$352<0.01%013F-HRTimeline
Seneschal Advisors, LLC2$352<0.01%new13F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV1$176<0.01%013F-HRTimeline
Nemes Rush Group LLC1$176<0.01%new13F-HRTimeline
ROSS\JOHNSON & Associates LLC1$176<0.01%013F-HRTimeline
NorthAvenue LLC1$176<0.01%13F-HRTimeline
KAYNE ANDERSON RUDNICK INVESTMENT MANAG…0$172<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.
Quest 10 Wealth Builders, Inc.1$137<0.01%013F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …0$00%-8,99813F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.