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Biogen
BIIB

916 hedge funds and large institutions have $25.1B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 270 increasing their positions, 378 reducing their positions, and 118 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.51% more ownership

Funds ownership: 88.6% → 89.11% (+0.51%)

3% less funds holding

Funds holding: 943 → 916 (-27)

16% less first-time investments, than exits

New positions opened: 99 | Existing positions closed: 118

16% less capital invested

Capital invested by funds: $29.9B → $25.1B (-$4.82B)

24% less call options, than puts

Call options by funds: $214M | Put options by funds: $282M

29% less repeat investments, than reductions

Existing positions increased: 270 | Existing positions reduced: 378

33% less funds holding in top 10

Funds holding in top 10: 12 → 8 (-4)

Holders
916
Holders Change
-27
Holders Change %
-2.86%
% of All Funds
13.15%
Holding in Top 10
8
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-33.33%
% of All Funds
0.11%
New
99
Increased
270
Reduced
378
Closed
118
Calls
$214M
Puts
$282M
Net Calls
-$67.3M
Net Calls Change
-$32.9M

Top Buyers

1
BlackRock
BlackRock
New York
+$169M
2
Man Group
Man Group
United Kingdom
+$167M
3
JP Morgan Chase
JP Morgan Chase
New York
+$113M
4
Barclays
Barclays
United Kingdom
+$99.1M
5
Two Sigma Investments
Two Sigma Investments
New York
+$91.2M

Top Sellers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$298M
2
ClearBridge Investments
ClearBridge Investments
New York
-$181M
3
VanEck Associates
VanEck Associates
New York
-$172M
4
SCM
Sarissa Capital Management
Connecticut
-$129M
5
American Century Companies
American Century Companies
Missouri
-$126M
Name Holding Trade Value Shares
Change 		Change in
Stake
TCBWMS
976
Texas Capital Bank Wealth Management Services
Texas
– -$236K -1,018 Closed
CWM
977
Calamos Wealth Management
Illinois
– -$235K -1,014 Closed
AWE
978
Avidian Wealth Enterprises
Texas
– -$234K -1,008 Closed
LSAG
979
Lake Street Advisors Group
New Hampshire
– -$234K -1,008 Closed
CI
980
CX Institutional
Indiana
– -$233K -1,005 Closed
VCG
981
Vantage Consulting Group
Virginia
– -$233K -1,005 Closed
DA
982
DCF Advisers
Connecticut
– -$232K -1,000 Closed
ACP
983
Aviance Capital Partners
Florida
– -$229K -989 Closed
FSA
984
Fort Sheridan Advisors
Illinois
– -$225K -970 Closed
NGA
985
Naples Global Advisors
Florida
– -$223K -962 Closed
SGI
986
Summit Global Investments
Utah
– -$223K -962 Closed
NCMW
987
Northern Capital Management (Washington)
Washington
– -$220K -947 Closed
NSAM
988
North Star Asset Management
Wisconsin
– -$219K -943 Closed
CIS
989
Custom Index Systems
New York
– -$218K -941 Closed
PA
990
Probity Advisors
Texas
– -$217K -938 Closed
LCM
991
LCM Capital Management
Illinois
– -$215K -928 Closed
OPCM
992
Osborne Partners Capital Management
California
– -$214K -925 Closed
PAA
993
Peregrine Asset Advisers
Oregon
– -$214K -923 Closed
NIM
994
Nexus Investment Management
Ontario, Canada
– -$213K -920 Closed
DWM
995
Defined Wealth Management
Oregon
– -$211K -910 Closed
MAG
996
M3 Advisory Group
Massachusetts
– -$205K -885 Closed
PCA
997
Private Capital Advisors
Connecticut
– -$205K -884 Closed
AWA
998
Arete Wealth Advisors
Illinois
– -$204K -878 Closed
DAS
999
Dynamic Advisor Solutions
Arizona
– -$203K -877 Closed
EAM
1000
Empirical Asset Management
Massachusetts
– -$203K -875 Closed
38 39
40
41 42

BIIB Hedge Fund Activity: Q3 2024 in Review

916 of the 6,964 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q3 2024, worth a combined $25.1B — down 16% from $29.9B a quarter earlier.

Sellers outnumbered buyers: 118 funds closed out of BIIB and 99 opened new positions — a net loss of 19 holders — while 378 trimmed existing stakes and 270 added.

The largest buyer was BlackRock, adding an estimated $169M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $298M.

  • 916 institutional investors held Biogen (BIIB) as of Q3 2024, down from 943 in Q2 2024.
  • Funds reported $25.1B of Biogen stock for Q3 2024, down 16% quarter-over-quarter.
  • 99 funds opened new Biogen positions in Q3 2024 and 118 closed out, a net change of -19 holders.
  • The largest Biogen buyer in Q3 2024 was BlackRock, an estimated $169M added.
  • The largest Biogen seller in Q3 2024 was T. Rowe Price Investment Management, an estimated $298M sold.

Based on aggregated 13F filings for Q3 2024.