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1,104 hedge funds and large institutions have $43.5B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 136 funds opening new positions, 324 increasing their positions, 468 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

108% more funds holding in top 10

Funds holding in top 10: 1327 (+14)

24% more first-time investments, than exits

New positions opened: 136 | Existing positions closed: 110

22% more capital invested

Capital invested by funds: $35.7B → $43.5B (+$7.81B)

1% more funds holding

Funds holding: 1,0931,104 (+11)

0.17% less ownership

Funds ownership: 83.93%83.76% (-0.17%)

6% less call options, than puts

Call options by funds: $1.8B | Put options by funds: $1.91B

31% less repeat investments, than reductions

Existing positions increased: 324 | Existing positions reduced: 468

Holders
1,104
Holders Change
+11
Holders Change %
+1.01%
% of All Funds
19.22%
Holding in Top 10
27
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+107.69%
% of All Funds
0.47%
New
136
Increased
324
Reduced
468
Closed
110
Calls
$1.8B
Puts
$1.91B
Net Calls
-$111M
Net Calls Change
-$185M
Name Holding Trade Value Shares
Change
Change in
Stake
Primecap Management
1
Primecap Management
California
$5.7B -$90.8M -299,750 -2%
BlackRock
2
BlackRock
New York
$4.57B -$89.7M -296,037 -2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$4.07B -$30.4M -100,325 -0.8%
State Street
4
State Street
Massachusetts
$2.31B +$2.27M +7,507 +0.1%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$1.94B -$91.2M -300,980 -5%
JP Morgan Chase
6
JP Morgan Chase
New York
$1.85B +$445M +1,467,865 +38%
ClearBridge Investments
7
ClearBridge Investments
New York
$1.23B -$122M -403,932 -10%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$1B +$29.5M +97,239 +3%
Northern Trust
9
Northern Trust
Illinois
$716M -$16M -52,969 -2%
Norges Bank
10
Norges Bank
Norway
$631M +$20.9M +69,083 +4%
Bank of New York Mellon
11
Bank of New York Mellon
New York
$611M -$125M -411,266 -19%
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$558M -$49.9M -164,608 -9%
Deutsche Bank
13
Deutsche Bank
Germany
$490M +$39.1M +128,955 +10%
Legal & General Group
14
Legal & General Group
United Kingdom
$480M +$57.5M +189,746 +16%
Fidelity Investments
15
Fidelity Investments
Massachusetts
$468M -$171M -562,998 -29%
Renaissance Technologies
16
Renaissance Technologies
New York
$461M -$184M -608,159 -31%
American Century Companies
17
American Century Companies
Missouri
$430M +$78.2M +258,217 +26%
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$411M +$22.7M +75,020 +7%
UBS AM
19
UBS AM
Illinois
$394M -$6.46M -21,311 -2%
Invesco
20
Invesco
Georgia
$361M +$2.85M +9,417 +0.9%
PAMU
21
Pictet Asset Management (UK)
United Kingdom
$302M -$47.4M -156,545 -15%
N
22
Nuveen
North Carolina
$294M +$6.85M +22,598 +3%
Goldman Sachs
23
Goldman Sachs
New York
$291M +$1.07M +3,518 +0.4%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$273M +$54.7M +180,453 +30%
Charles Schwab
25
Charles Schwab
California
$251M +$5.93M +19,565 +3%