Ostrum Asset Management’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$1.82M Sell
2025
Q1
$2.01M Sell
2024
Q4
$2.28M Sell
2024
Q3
$4.25M Buy
2024
Q2
$5.04M Sell
2024
Q1
$4.91M Buy
2023
Q4
$5.26M Buy
2023
Q3
$2.88M Buy
2023
Q2
$3.17M Buy
2023
Q1
$2.9M Buy
2019
Q1
Sell
2018
Q4
$651K Buy