1,019 hedge funds and large institutions have $51.5B invested in Biogen in 2017 Q1 according to their latest regulatory filings, with 90 funds opening new positions, 390 increasing their positions, 395 reducing their positions, and 83 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

4% less capital invested

Capital invested by funds: $53.8B → $51.5B (-$2.28B)

25% less call options, than puts

Call options by funds: $808M | Put options by funds: $1.07B

34% less funds holding in top 10

Funds holding in top 10: 4127 (-14)

Holders
1,019
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
27
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$808M
Puts
$1.07B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
301
$7.56M
302
$7.55M
303
$7.53M
304
$7.49M
305
$7.47M
306
$7.39M
307
$7.36M
308
$7.31M
309
$7.17M
310
$7.15M
311
$7.12M
312
$7.11M
313
$7.08M
314
$7.04M
315
$7.04M
316
$7.03M
317
$6.99M
318
$6.86M
319
$6.84M
320
$6.78M
321
$6.78M
322
$6.77M
323
$6.77M
324
$6.71M
325
$6.65M