1,009 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, 316 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: 316 | Existing positions reduced: 451

41% less first-time investments, than exits

New positions opened: 84 | Existing positions closed: 142

Holders
1,009
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
$6.53M
277
$6.51M
278
$6.47M
279
$6.43M
280
$6.42M
281
$6.37M
282
$6.33M
283
$6.28M
284
$6.09M
285
$6.07M
286
$6.03M
287
$5.95M
288
$5.92M
289
$5.91M
290
$5.7M
291
$5.66M
292
$5.62M
293
$5.59M
294
$5.55M
295
$5.41M
296
$5.38M
297
$5.3M
298
$5.25M
299
$5.11M
300
$5.05M