946 hedge funds and large institutions have $49.3B invested in Biogen in 2016 Q1 according to their latest regulatory filings, with 95 funds opening new positions, 363 increasing their positions, 350 reducing their positions, and 103 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
946
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
32
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.05B
Puts
$1.13B
Net Calls
Net Calls Change

Top Buyers

1 +$458M
2 +$148M
3 +$114M
4
VAM
Visium Asset Management
New York
+$99.3M
5
Invesco
Invesco
Georgia
+$89.1M
Name Holding Trade Value Shares
Change
Change in
Stake
276
$8.31M
277
$8.3M
278
$8.26M
279
$8.26M
280
$8.17M
281
$8.16M
282
$8.1M
283
$8.04M
284
$7.92M
285
$7.81M
286
$7.77M
287
$7.76M
288
$7.75M
289
$7.75M
290
$7.75M
291
$7.58M
292
$7.58M
293
$7.58M
294
$7.43M
295
$7.35M
296
$7.29M
297
$7.27M
298
$7.21M
299
$7.21M
300
$7.1M