1,010 hedge funds and large institutions have $37.6B invested in Biogen in 2019 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 317 increasing their positions, 451 reducing their positions, and 142 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 call options, than puts

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

27% less funds holding in top 10

Funds holding in top 10: 2216 (-6)

30% less repeat investments, than reductions

Existing positions increased: 317 | Existing positions reduced: 451

41% less first-time investments, than exits

New positions opened: 84 | Existing positions closed: 142

Holders
1,010
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$883M
Puts
$1.2B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
276
$6.55M
277
$6.53M
278
$6.51M
279
$6.47M
280
$6.43M
281
$6.42M
282
$6.37M
283
$6.33M
284
$6.28M
285
$6.09M
286
$6.07M
287
$6.03M
288
$5.95M
289
$5.92M
290
$5.91M
291
$5.7M
292
$5.66M
293
$5.62M
294
$5.59M
295
$5.55M
296
$5.41M
297
$5.38M
298
$5.3M
299
$5.25M
300
$5.11M