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874 hedge funds and large institutions have $20.2B invested in Biogen in 2024 Q4 according to their latest regulatory filings, with 131 funds opening new positions, 300 increasing their positions, 322 reducing their positions, and 159 closing their positions.

New
Increased
Maintained
Reduced
Closed

1.72% more ownership

Funds ownership: 89.11%90.83% (+1.7%)

7% less repeat investments, than reductions

Existing positions increased: 300 | Existing positions reduced: 322

5% less funds holding

Funds holding: 916874 (-42)

13% less call options, than puts

Call options by funds: $310M | Put options by funds: $356M

18% less first-time investments, than exits

New positions opened: 131 | Existing positions closed: 159

19% less capital invested

Capital invested by funds: $25.1B → $20.2B (-$4.84B)

38% less funds holding in top 10

Funds holding in top 10: 85 (-3)

Holders
874
Holders Change
-42
Holders Change %
-4.59%
% of All Funds
11.51%
Holding in Top 10
5
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-37.5%
% of All Funds
0.07%
New
131
Increased
300
Reduced
322
Closed
159
Calls
$310M
Puts
$356M
Net Calls
-$45.6M
Net Calls Change
+$21.7M
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$2.56B +$11.9M +70,368 +0.4%
Primecap Management
2
Primecap Management
California
$2.45B -$45.3M -268,870 -2%
BlackRock
3
BlackRock
New York
$2.37B +$21.4M +126,669 +0.8%
State Street
4
State Street
Massachusetts
$1.13B +$8.99M +53,288 +0.7%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$754M -$33.8M -200,470 -4%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$564M +$13.9M +82,456 +2%
T. Rowe Price Investment Management
7
T. Rowe Price Investment Management
Maryland
$474M -$195M -1,156,500 -27%
Pacer Advisors
8
Pacer Advisors
Pennsylvania
$408M +$447M +2,648,024 +13,575%
Norges Bank
9
Norges Bank
Norway
$356M +$10.3M +60,807 +3%
Invesco
10
Invesco
Georgia
$326M +$84.2M +499,074 +31%
JP Morgan Chase
11
JP Morgan Chase
New York
$321M -$533M -3,161,009 -60%
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$296M +$3.57M +21,170 +1%
Morgan Stanley
13
Morgan Stanley
New York
$273M -$17.7M -104,890 -6%
BGC
14
Beutel, Goodman & Co
Ontario, Canada
$267M +$392K +2,323 +0.1%
D.E. Shaw & Co
15
D.E. Shaw & Co
New York
$246M +$198M +1,174,960 +270%
Northern Trust
16
Northern Trust
Illinois
$237M +$33.2M +196,995 +15%
UBS AM
17
UBS AM
Illinois
$235M +$64.3M +381,122 +33%
Legal & General Group
18
Legal & General Group
United Kingdom
$188M -$3.7M -21,946 -2%
Amundi
19
Amundi
France
$183M +$53.9M +319,478 +36%
Renaissance Technologies
20
Renaissance Technologies
New York
$182M +$40.4M +239,500 +25%
Deutsche Bank
21
Deutsche Bank
Germany
$179M +$76.8M +455,285 +64%
Qube Research & Technologies (QRT)
22
Qube Research & Technologies (QRT)
United Kingdom
$167M +$125M +741,497 +212%
VanEck Associates
23
VanEck Associates
New York
$163M +$163M +967,523 +978%
UBS Group
24
UBS Group
Switzerland
$160M +$91.9M +544,566 +108%
Dimensional Fund Advisors
25
Dimensional Fund Advisors
Texas
$156M -$15.6M -92,316 -8%