1,100 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 203 funds opening new positions, 272 increasing their positions, 469 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.67% less ownership

Funds ownership: 86.83%84.16% (-2.7%)

30% less call options, than puts

Call options by funds: $1.27B | Put options by funds: $1.82B

42% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 469

Holders
1,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.27B
Puts
$1.82B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
276
$8.48M
277
$8.46M
278
$8.4M
279
$8.19M
280
$8.13M
281
$7.88M
282
$7.75M
283
$7.73M
284
$7.73M
285
$7.72M
286
$7.64M
287
$7.47M
288
$7.42M
289
$7.42M
290
$7.39M
291
$7.36M
292
$7.29M
293
$7.22M
294
$7.21M
295
$7.09M
296
$6.87M
297
$6.84M
298
$6.74M
299
$6.64M
300
$6.56M