Biogen Inc. (BIIB)

Market is closed

Hedge Fund Popularity

13F filing is ongoing

Hedge Fund Holdings
Filing Period:
Last update:
No. Hedge Fund Shares Value Activity % Port
1.
RA Capital Management

Peter Kolchinsky

1,184,456 $229,594,951 +21% 2.64%
2. 952,706 $184,672,531 +55% 0.27%
3.
GLG Partners

Noam Gottesman

856,835 $166,088,896 +1388% 0.43%
4.
OrbiMed Advisors

Samuel Isaly

813,000 $157,591,920 -10% 2.86%
5.
D E Shaw

D. E. Shaw

434,939 $84,308,576 +103% 0.07%
Insider Trading: Purchases See All
Insider Price Amount Relationship Remaining Holdings Date Form 4
$222.54 455 Director 20,629 2024-02-15 Filing
$267.00 898 Director 2,943 2021-02-09 Filing
$241.31 3,100 Officer, Director 34,810 2020-11-30 Filing
$231.24 38,000 Director 643,000 2019-05-02 Filing
$229.46 30,000 Director 605,000 2019-05-01 Filing
Insider Trading: Sales See All
Insider Price Amount Relationship Remaining Holdings Date Form 4
$157.21 110 Officer 5,426 2024-12-09 Filing
$204.22 431 Officer 5,316 2024-09-03 Filing
$213.09 93 Officer 4,886 2024-04-02 Filing
$221.23 262 Officer 4,886 2024-02-22 Filing
$221.49 108 Officer 5,148 2024-02-16 Filing
Institutional Investors' Holdings
Filing Period:
No. Name Shares Value % Port
1. 16,264,481 $4,208,759,748 3.33%
2. 14,407,330 $3,728,184,783 0.08%
3. 14,246,658 $3,686,607,689 0.09%
4. 6,945,665 $1,797,329,732 0.08%
5. 5,324,396 $1,377,793,953 0.25%
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