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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
SCM
251
Silverarc Capital Management
Massachusetts
$3.87M +$120K +575 +3%
SMDAM
252
Sumitomo Mitsui DS Asset Management
Japan
$3.82M +$102K +489 +3%
IG
253
ING Group
Netherlands
$3.81M -$1.03M -4,945 -20%
Pacer Advisors
254
Pacer Advisors
Pennsylvania
$3.78M +$92.3K +441 +2%
Capstone Investment Advisors
255
Capstone Investment Advisors
New York
$3.77M +$2.69M +12,873 +196%
State of Tennessee, Department of Treasury
256
State of Tennessee, Department of Treasury
Tennessee
$3.75M -$8.76M -41,870 -68%
LSERS
257
Louisiana State Employees Retirement System
Louisiana
$3.74M -$105K -500 -3%
AP
258
Arlington Partners
Alabama
$3.72M +$1.03M +4,902 +34%
EF
259
Empowered Funds
Pennsylvania
$3.67M +$3.24M +15,506 +456%
Bank of Nova Scotia
260
Bank of Nova Scotia
Ontario, Canada
$3.61M +$729K +3,485 +23%
Aviva
261
Aviva
United Kingdom
$3.59M +$54K +258 +1%
IMPI
262
Ilmarinen Mutual Pension Insurance
Finland
$3.49M – – –
EGM
263
Engineers Gate Manager
New York
$3.49M +$3.76M +17,992 New
FWIA
264
Fort Washington Investment Advisors
Ohio
$3.45M – – –
FC
265
FORA Capital
Florida
$3.43M +$3.7M +17,700 New
Walleye Trading
266
Walleye Trading
New York
$3.32M +$683K +3,263 +24%
CCIA
267
Campbell & Co Investment Adviser
Maryland
$3.28M +$2.95M +14,123 +505%
MIH
268
Meitav Investment House
Israel
$3.27M – – –
PP
269
PDT Partners
New York
$3.2M +$2.09M +9,997 +154%
GAM
270
Groupama Asset Management
France
$3.19M +$1.63M +7,812 +61%
M&T Bank
271
M&T Bank
New York
$3.15M -$181K -863 -5%
AAM
272
Auxier Asset Management
Oregon
$3.14M -$7.95K -38 -0.2%
CEI
273
Clark Estates Inc
New York
$3.13M +$3.38M +16,150 New
OCBCO
274
Oversea-Chinese Banking Corp (OCBC)
Singapore
$3.05M +$658K +3,145 +25%
NIM
275
NEOS Investment Management
Connecticut
$2.89M +$396K +1,893 +15%
9 10
11
12 13

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.