1,102 hedge funds and large institutions have $43.4B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 135 funds opening new positions, 324 increasing their positions, 467 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

0.17% less ownership

Funds ownership: 83.86%83.69% (-0.17%)

6% less call options, than puts

Call options by funds: $1.8B | Put options by funds: $1.91B

31% less repeat investments, than reductions

Existing positions increased: 324 | Existing positions reduced: 467

Holders
1,102
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
$1.8B
Puts
$1.91B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
276
$7.18M
277
$7.11M
278
$7.1M
279
$7.09M
280
$7.01M
281
$6.93M
282
$6.92M
283
$6.92M
284
$6.79M
285
$6.76M
286
$6.76M
287
$6.74M
288
$6.73M
289
$6.57M
290
$6.53M
291
$6.48M
292
$6.44M
293
$6.38M
294
$6.31M
295
$6.28M
296
$6.23M
297
$6.18M
298
$6.08M
299
$6.05M
300
$6.01M