1,058 hedge funds and large institutions have $36.3B invested in Biogen in 2020 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 339 increasing their positions, 437 reducing their positions, and 130 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

26% less first-time investments, than exits

New positions opened: 96 | Existing positions closed: 130

37% less call options, than puts

Call options by funds: $894M | Put options by funds: $1.43B

57% less funds holding in top 10

Funds holding in top 10: 4921 (-28)

Holders
1,058
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$894M
Puts
$1.43B
Net Calls
Net Calls Change

Top Buyers

1 +$204M
2 +$170M
3 +$159M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$128M
5
AL
AJO LP
Pennsylvania
+$102M
Name Holding Trade Value Shares
Change
Change in
Stake
326
$4.22M
327
$4.21M
328
$4.14M
329
$4.07M
330
$4.07M
331
$4.05M
332
$4.01M
333
$4.01M
334
$3.98M
335
$3.95M
336
$3.89M
337
$3.84M
338
$3.8M
339
$3.77M
340
$3.77M
341
$3.72M
342
$3.7M
343
$3.69M
344
$3.68M
345
$3.58M
346
$3.55M
347
$3.48M
348
$3.46M
349
$3.43M
350
$3.34M