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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
Bank of New York Mellon
26
Bank of New York Mellon
New York
$149M -$4.78M -28,340 -3%
Charles Schwab
27
Charles Schwab
California
$149M +$9.82M +58,234 +6%
Two Sigma Investments
28
Two Sigma Investments
New York
$130M +$34.3M +203,634 +31%
Barclays
29
Barclays
United Kingdom
$128M -$14M -82,902 -9%
Goldman Sachs
30
Goldman Sachs
New York
$118M -$36.9M -218,721 -22%
Fidelity Investments
31
Fidelity Investments
Massachusetts
$116M +$63.5M +376,356 +99%
Massachusetts Financial Services
32
Massachusetts Financial Services
Massachusetts
$112M +$3.57M +21,192 +3%
EPFB
33
Employees Provident Fund Board
Malaysia
$108M +$4.4M +26,116 +4%
Man Group
34
Man Group
United Kingdom
$105M -$28.7M -170,285 -20%
Prudential Financial
35
Prudential Financial
New Jersey
$88.1M +$25.8M +152,992 +36%
Millennium Management
36
Millennium Management
New York
$83.2M +$24.6M +145,708 +37%
Aberdeen Group
37
Aberdeen Group
United Kingdom
$82M -$4.23M -25,100 -4%
Allianz Asset Management
38
Allianz Asset Management
Germany
$82M +$1.76M +10,441 +2%
AQR Capital Management
39
AQR Capital Management
Connecticut
$81.9M +$82.6M +489,811 +982%
Two Sigma Advisers
40
Two Sigma Advisers
New York
$81.8M +$18M +107,000 +25%
First Trust Advisors
41
First Trust Advisors
Illinois
$78.2M +$25.8M +152,789 +43%
O
42
OrbiMed
New York
$77.9M -$51.3M -303,900 -37%
Susquehanna International Group
43
Susquehanna International Group
Pennsylvania
$74.2M +$37.8M +223,901 +86%
WorldQuant Millennium Advisors
44
WorldQuant Millennium Advisors
New York
$70.5M +$53.1M +314,669 +215%
HSBC Holdings
45
HSBC Holdings
United Kingdom
$67.2M +$4.49M +26,605 +6%
Bank of America
46
Bank of America
North Carolina
$63.6M -$40.8M -241,929 -37%
PCM
47
Patient Capital Management
Maryland
$63.3M +$26.7M +158,018 +62%
Swiss National Bank
48
Swiss National Bank
Switzerland
$62.9M -$3.47M -20,600 -5%
Robeco Institutional Asset Management
49
Robeco Institutional Asset Management
Netherlands
$62.4M +$22.5M +133,568 +49%
California Public Employees Retirement System
50
California Public Employees Retirement System
California
$60.8M +$469K +2,778 +0.7%