991 hedge funds and large institutions have $50.9B invested in Biogen in 2017 Q2 according to their latest regulatory filings, with 79 funds opening new positions, 351 increasing their positions, 390 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less capital invested

Capital invested by funds: $ → $

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

15% less funds holding in top 10

Funds holding in top 10: 2723 (-4)

16% less call options, than puts

Call options by funds: $954M | Put options by funds: $1.14B

18% less first-time investments, than exits

New positions opened: 79 | Existing positions closed: 96

Holders
991
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$954M
Puts
$1.14B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
276
$9.68M
277
$9.5M
278
$9.5M
279
$9.31M
280
$9.23M
281
$9.07M
282
$9.05M
283
$8.96M
284
$8.95M
285
$8.79M
286
$8.68M
287
$8.68M
288
$8.58M
289
$8.53M
290
$8.23M
291
$8.17M
292
$8.16M
293
$8.14M
294
$8.04M
295
$8.04M
296
$7.92M
297
$7.89M
298
$7.88M
299
$7.87M
300
$7.82M