1,100 hedge funds and large institutions have $51.4B invested in Biogen in 2018 Q1 according to their latest regulatory filings, with 94 funds opening new positions, 424 increasing their positions, 416 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

14% less capital invested

Capital invested by funds: $60B → $51.4B (-$8.57B)

34% less call options, than puts

Call options by funds: $695M | Put options by funds: $1.05B

Holders
1,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$695M
Puts
$1.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
301
$8.07M
302
$7.98M
303
$7.9M
304
$7.88M
305
$7.86M
306
$7.79M
307
$7.78M
308
$7.73M
309
$7.7M
310
$7.65M
311
$7.63M
312
$7.61M
313
$7.57M
314
$7.45M
315
$7.43M
316
$7.38M
317
$7.38M
318
$7.37M
319
$7.34M
320
$7.32M
321
$7.21M
322
$7.12M
323
$7.08M
324
$7.05M
325
$7M