BIOGEN INC. - BIIB

Sector: Healthcare · Industry: Biological Products, (No Diagnostic Substances)

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Company profile

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Q1 2026 · Q4 2025

Value (USD)

Total reported value ($000)

$28.72B

QoQ value delta ($000)

+$3.192B (+12.51%)

Implied price effect (QoQ)

+3.61%

Total shares

157,470,965

QoQ shares delta

+12,450,228 (+8.59%)

Total shares held by funds (by quarter)

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Top 25 only Full list

Partial Q1 2026 data: 1000 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.

Manager	Value ($000)	Shares	% of 13F
VANGUARD GROUP INC	3,070,513	17,447,092	0.04%
BlackRock, Inc.	2,928,623	15,974,601	0.05%
PRIMECAP MANAGEMENT CO/CA/	2,705,512	14,757,607	2.13%
FMR LLC	2,348,006	12,807,541	0.12%
VANGUARD CAPITAL MANAGEMENT LLC	1,748,494	9,537,417	0.04%
STATE STREET CORP	1,314,095	7,167,922	0.05%
VANGUARD PORTFOLIO MANAGEMENT LLC	1,197,461	6,531,727	0.06%
GEODE CAPITAL MANAGEMENT, LLC	793,387	4,342,602	0.05%
WELLINGTON MANAGEMENT GROUP LLP	542,957	2,961,641	0.1%
NORGES BANK	464,408	2,638,834	0.05%
MORGAN STANLEY	397,998	2,170,940	0.02%
JPMORGAN CHASE & CO	378,142	2,016,009	0.02%
AQR CAPITAL MANAGEMENT LLC	346,240	1,923,557	0.16%
Invesco Ltd.	319,957	1,745,255	0.05%
Boston Partners	311,657	1,700,078	0.33%
NORTHERN TRUST CORP	265,201	1,446,579	0.04%
SUSQUEHANNA INTERNATIONAL GROUP, LLP	262,931	1,434,199	0.03%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	252,549	1,377,568	0.05%
Legal & General Group Plc	247,464	1,349,832	0.06%
GOLDMAN SACHS GROUP INC	215,869	1,177,494	0.02%
T. Rowe Price Investment Management, Inc.	212,845	1,160,989	0.15%
BANK OF AMERICA CORP /DE/	211,997	1,156,369	0.02%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	210,718	1,149,394	0.03%
VAN ECK ASSOCIATES CORP	197,970	1,079,861	0.15%
DIMENSIONAL FUND ADVISORS LP	197,881	1,079,119	0.04%