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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
CAS
901
Coppell Advisory Solutions
Texas
$973 – – –
AP
902
Atwood & Palmer
Missouri
$970 -$628 -3 -38%
EWM
903
Evermay Wealth Management
Virginia
$970 – – –
CA
904
Continuum Advisory
Idaho
$824 +$209 +1 +25%
TWD
905
True Wealth Design
Ohio
$776 – – –
VAMG
906
Voisard Asset Management Group
Michigan
$776 +$837 +4 New
TFM
907
TFC Financial Management
Massachusetts
$582 -$837 -4 -57%
CAM
908
ClariVest Asset Management
California
$457 – – –
CT
909
Colonial Trust
South Carolina
$389 +$418 +2 New
CWC
910
Carolinas Wealth Consulting
North Carolina
$388 -$628 -3 -60%
NL
911
NVWM LLC
Pennsylvania
$388 -$418 -2 -50%
WA
912
WestEnd Advisors
North Carolina
$388 – – –
HPC
913
HM Payson & Co
Maine
$194 +$209 +1 New
WOC
914
West Oak Capital
California
$87 -$209 -1 -2%
ACA
915
American Capital Advisory
Idaho
$12 – – –
PCFFS
916
Pacific Center for Financial Services
California
$8 – – –
DWM
917
Dogwood Wealth Management
Kansas
$3 – – –
Alyeska Investment Group
918
Alyeska Investment Group
Illinois
– -$93M -401,005 Closed
Balyasny Asset Management
919
Balyasny Asset Management
Illinois
– -$82.6M -394,887 Closed
PCH
920
Polar Capital Holdings
United Kingdom
– -$52.2M -225,000 Closed
ZIG
921
Zurich Insurance Group
Switzerland
– -$22.9M -98,642 Closed
CCM
922
Cutter Capital Management
New York
– -$17.8M -76,726 Closed
GGHC
923
Gilder Gagnon Howe & Co
New York
– -$13.2M -57,031 Closed
CCP
924
Clough Capital Partners
Massachusetts
– -$9.92M -42,800 Closed
NWM
925
Nicola Wealth Management
British Columbia, Canada
– -$9.16M -39,500 Closed
35 36
37
38 39

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.