1,018 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, 389 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
1,018
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
276
$9.44M
277
$9.43M
278
$9.4M
279
$9.25M
280
$9.23M
281
$9.13M
282
$9.09M
283
$9.05M
284
$9.02M
285
$9.02M
286
$8.84M
287
$8.82M
288
$8.76M
289
$8.44M
290
$8.44M
291
$8.4M
292
$8.28M
293
$8.28M
294
$8.16M
295
$8.07M
296
$7.9M
297
$7.84M
298
$7.79M
299
$7.68M
300
$7.68M