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Biogen
BIIB

Overview Fund Activity

846 hedge funds and large institutions have $16.1B invested in Biogen in 2025 Q2 according to their latest regulatory filings, with 94 funds opening new positions, 336 increasing their positions, 257 reducing their positions, and 99 closing their positions.

Holders
846
Holders Change
-22
Holders Change %
-2.53%
% of All Funds
11.36%
Holding in Top 10
5
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+150%
% of All Funds
0.07%
New
94
Increased
336
Reduced
257
Closed
99
Calls
$292M
Puts
$203M
Net Calls
+$88.9M
Net Calls Change
+$365M

Top Buyers

1
Point72 Asset Management
1
Point72 Asset Management
Connecticut
$481M
2
Norges Bank
2
Norges Bank
Norway
$284M
3
Alyeska Investment Group
3
Alyeska Investment Group
Illinois
$63.9M
4
Arrowstreet Capital
4
Arrowstreet Capital
Massachusetts
$78.4M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$210M

Top Sellers

1
BlackRock
1
BlackRock
New York
$1.7B
2
T. Rowe Price Investment Management
2
T. Rowe Price Investment Management
Maryland
$175M
3
Amundi
3
Amundi
France
$77.2M
4
SG Americas Securities
4
SG Americas Securities
New York
$2.82M
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$93.4M
Name Market Value Shares Shares
Change 		Shares
Change %
RA
701
Rise Advisors
New York
$18.6K 148 – –
TWD
702
True Wealth Design
Ohio
$18K 143 +118 +472%
AA
703
Addison Advisors
Vermont
$15.8K 126 +114 +950%
API
704
Asset Planning Inc
California
$15.8K 126 – –
NC
705
North Capital
Utah
$14.6K 116 -322 -74%
AUB
706
Atlantic Union Bankshares
Virginia
$14.4K 115 +115 New
FHA
707
First Horizon Advisors
Tennessee
$13.9K 110 +6 +6%
SN
708
Sittner & Nelson
Oregon
$13.8K 110 – –
GK
709
Graney & King
New York
$13.3K 106 – –
BGAI
710
Bruce G. Allen Investments
Colorado
$13.2K 105 +38 +57%
CFG
711
CKW Financial Group
Hawaii
$13K 100 – –
BIA
712
Bell Investment Advisors
California
$12.8K 102 -32 -24%
GRP
713
Global Retirement Partners
California
$12.8K 102 +102 New
DAM
714
Delta Asset Management
Tennessee
$12.6K 100 – –
SFCL
715
Strengthening Families & Communities LLC
Massachusetts
$12.6K 100 +100 New
LFA
716
Livelsberger Financial Advisory
Ohio
$12.6K 100 +100 New
SC
717
SouthState Corp
Florida
$11.9K 95 +23 +32%
VWA
718
VSM Wealth Advisory
Maryland
$11.6K 92 – –
RA
719
Ransom Advisory
Rhode Island
$11.3K 90 -50 -36%
CCA
720
Catalyst Capital Advisors
New York
$11.2K 89 -25 -22%
RTL
721
Red Tortoise LLC
Georgia
$11.2K 89 +76 +585%
BSC
722
Brown Shipley & Co
United Kingdom
$10.7K 85 -22 -21%
HC
723
Hara Capital
Washington
$10.6K 84 – –
UBP
724
Union Bancaire Privee
Switzerland
$10.3K 82 – –
GIA
725
GHP Investment Advisors
Colorado
$10.3K 82 -5 -6%
27 28
29
30 31