Atika Capital Management’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2020
Q2
Sell
-10,000
Closed -$3.16M 83
2020
Q1
$3.16M Buy
+10,000
New +$3.16M 0.61% 46
2016
Q4
Sell
-7,500
Closed -$2.35M 58
2016
Q3
$2.35M Buy
+7,500
New +$2.35M 0.96% 40
2014
Q2
Sell
-8,500
Closed -$2.6M 59
2014
Q1
$2.6M Buy
+8,500
New +$2.6M 2.21% 13