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
401
$2.2M
402
$2.15M
403
$2.13M
404
$2.12M
405
$2.06M
406
$2.06M
407
$2.03M
408
$2.03M
409
$2.02M
410
$2.02M
411
$2.01M
412
$2.01M
413
$1.98M
414
$1.97M
415
$1.97M
416
$1.96M
417
$1.96M
418
$1.95M
419
$1.95M
420
$1.95M
421
$1.93M
422
$1.93M
423
$1.93M
424
$1.91M
425
$1.91M