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
426
$1.26M
427
$1.24M
428
$1.23M
429
$1.22M
430
$1.21M
431
$1.19M
432
$1.19M
433
$1.18M
434
$1.17M
435
$1.17M
436
$1.17M
437
$1.16M
438
$1.15M
439
$1.14M
440
$1.14M
441
$1.13M
442
$1.12M
443
$1.12M
444
$1.11M
445
$1.11M
446
$1.11M
447
$1.11M
448
$1.1M
449
$1.09M
450
$1.09M