963 hedge funds and large institutions have $32.1B invested in Biogen in 2023 Q3 according to their latest regulatory filings, with 91 funds opening new positions, 334 increasing their positions, 344 reducing their positions, and 118 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

11% less capital invested

Capital invested by funds: $36.1B → $32.1B (-$3.96B)

17% less funds holding in top 10

Funds holding in top 10: 1815 (-3)

23% less first-time investments, than exits

New positions opened: 91 | Existing positions closed: 118

Holders
963
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
15
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$575M
Puts
$517M
Net Calls
Net Calls Change

Top Buyers

1 +$363M
2 +$138M
3 +$80.3M
4
VanEck Associates
VanEck Associates
New York
+$62.6M
5
Macquarie Group
Macquarie Group
Australia
+$55.6M

Top Sellers

1 -$342M
2 -$172M
3 -$154M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$152M
5
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$91.2M
Name Holding Trade Value Shares
Change
Change in
Stake
376
$1.53M
377
$1.52M
378
$1.52M
379
$1.51M
380
$1.5M
381
$1.48M
382
$1.48M
383
$1.46M
384
$1.46M
385
$1.45M
386
$1.45M
387
$1.44M
388
$1.44M
389
$1.43M
390
$1.41M
391
$1.38M
392
$1.38M
393
$1.36M
394
$1.34M
395
$1.32M
396
$1.32M
397
$1.31M
398
$1.31M
399
$1.31M
400
$1.3M