994 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 340 increasing their positions, 362 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more ownership

Funds ownership:

more capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

3% less funds holding

Funds holding: 1,026994 (-32)

14% less first-time investments, than exits

New positions opened: 87 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
994
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
19
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$744M
Puts
$674M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
376
$1.92M
377
$1.91M
378
$1.9M
379
$1.89M
380
$1.88M
381
$1.87M
382
$1.87M
383
$1.87M
384
$1.85M
385
$1.84M
386
$1.79M
387
$1.77M
388
$1.75M
389
$1.75M
390
$1.72M
391
$1.71M
392
$1.7M
393
$1.69M
394
$1.67M
395
$1.64M
396
$1.64M
397
$1.63M
398
$1.61M
399
$1.59M
400
$1.57M