Biogen Inc. (BIIB)

Hedge Fund Holdings
Filing Period:
Last update:
No. Hedge Fund Shares Value (x$1000) Activity % Port
1. 3,816,961 $1,082,795 -3% 1.08%
2. 2,216,985 $627,906 -1% 1.06%
3.
OrbiMed Advisors

Samuel Isaly

715,900 $203,087 2.55%
4. 672,600 $190,803 +12% 0.05%
5.
Berkshire Hathaway

Warren Buffett

643,022 $182,412 0.07%
Insider Trading: Purchases See All
Insider Price Amount Relationship Remaining Holdings Date Form 4
$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
$229.25 50,342 Director 575,000 2019-04-30 Filing
$231.48 4,351 Officer, Director 21,007 2019-05-01 Filing
Insider Trading: Sales See All
Insider Price Amount Relationship Remaining Holdings Date Form 4
$350.00 1,500 Officer 13,066 2020-11-04 Filing
$295.29 270 Director 15,438 2020-03-11 Filing
$295.22 2,164 Director 14,353 2020-03-11 Filing
$292.35 1,055 Director 6,995 2019-12-02 Filing
$328.55 6,114 Director 18,587 2019-03-18 Filing
Institutional Investors' Holdings
Filing Period:
No. Name Shares Value (x$1000) % Port
1. 1,329,648 $377,194,546 0.2%
2. 245,724 $69,706,984 0.74%
3. 174,051 $49,374,788 0.07%
4. 55,464 $15,734,027 0.19%
5. 53,957 $15,306,521 0.2%
News See All