951 hedge funds and large institutions have $28B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 104 funds opening new positions, 302 increasing their positions, 354 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

17% less capital invested

Capital invested by funds: $33.7B → $28B (-$5.72B)

18% less funds holding in top 10

Funds holding in top 10: 119 (-2)

28% less first-time investments, than exits

New positions opened: 104 | Existing positions closed: 144

Holders
951
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$303M
Puts
$303M
Net Calls
Net Calls Change

Top Sellers

1 -$341M
2 -$151M
3 -$93.5M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$89.1M
5
JP Morgan Chase
JP Morgan Chase
New York
-$82.6M
Name Holding Trade Value Shares
Change
Change in
Stake
376
$1.35M
377
$1.34M
378
$1.33M
379
$1.32M
380
$1.31M
381
$1.3M
382
$1.29M
383
$1.27M
384
$1.26M
385
$1.26M
386
$1.26M
387
$1.25M
388
$1.24M
389
$1.23M
390
$1.22M
391
$1.22M
392
$1.21M
393
$1.19M
394
$1.19M
395
$1.19M
396
$1.19M
397
$1.17M
398
$1.16M
399
$1.16M
400
$1.15M