Rock Springs Capital Management’s Immunogen Inc IMGN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2024
Q1
Sell
-759,365
Closed -$22.5M 118
2023
Q4
$22.5M Hold
759,365
0.55% 53
2023
Q3
$12.1M Buy
759,365
+646,745
+574% +$10.3M 0.32% 68
2023
Q2
$2.13M Buy
+112,620
New +$2.13M 0.05% 106