1,092 hedge funds and large institutions have $35.6B invested in Biogen in 2021 Q1 according to their latest regulatory filings, with 140 funds opening new positions, 357 increasing their positions, 408 reducing their positions, and 99 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

5% more call options, than puts

Call options by funds: $1.45B | Put options by funds: $1.37B

0.12% less ownership

Funds ownership: 83.98%83.86% (-0.12%)

13% less repeat investments, than reductions

Existing positions increased: 357 | Existing positions reduced: 408

Holders
1,092
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.45B
Puts
$1.37B
Net Calls
Net Calls Change

Top Buyers

1 +$263M
2 +$252M
3 +$163M
4
ClearBridge Investments
ClearBridge Investments
New York
+$99.9M
5
A
AustralianSuper
Australia
+$99.3M

Top Sellers

1 -$297M
2 -$121M
3 -$113M
4
Marshall Wace
Marshall Wace
United Kingdom
-$96.4M
5
State Street
State Street
Massachusetts
-$86.2M
Name Holding Trade Value Shares
Change
Change in
Stake
326
$3.71M
327
$3.71M
328
$3.68M
329
$3.66M
330
$3.62M
331
$3.59M
332
$3.54M
333
$3.54M
334
$3.51M
335
$3.51M
336
$3.5M
337
$3.49M
338
$3.49M
339
$3.47M
340
$3.46M
341
$3.46M
342
$3.45M
343
$3.44M
344
$3.43M
345
$3.38M
346
$3.36M
347
$3.36M
348
$3.34M
349
$3.33M
350
$3.33M