1,140 hedge funds and large institutions have $52.2B invested in Biogen in 2018 Q4 according to their latest regulatory filings, with 130 funds opening new positions, 374 increasing their positions, 452 reducing their positions, and 122 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:

less funds holding

Funds holding:

less ownership

Funds ownership:

17% less capital invested

Capital invested by funds: $62.8B → $52.2B (-$10.5B)

17% less repeat investments, than reductions

Existing positions increased: 374 | Existing positions reduced: 452

26% less call options, than puts

Call options by funds: $992M | Put options by funds: $1.34B

Holders
1,140
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
29
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$992M
Puts
$1.34B
Net Calls
Net Calls Change

Top Sellers

1 -$196M
2 -$177M
3 -$150M
4
Invesco
Invesco
Georgia
-$145M
5
Goldman Sachs
Goldman Sachs
New York
-$139M
Name Holding Trade Value Shares
Change
Change in
Stake
276
$10M
277
$10M
278
$9.96M
279
$9.63M
280
$9.44M
281
$9.43M
282
$9.39M
283
$9.38M
284
$9.24M
285
$9.14M
286
$9.04M
287
$9.04M
288
$9.02M
289
$8.88M
290
$8.84M
291
$8.64M
292
$8.55M
293
$8.47M
294
$8.45M
295
$8.39M
296
$8.32M
297
$8.26M
298
$8.19M
299
$8.13M
300
$8.13M