Rock Springs Capital Management LP - IMMUNOGEN INC ownership

IMMUNOGEN INC's ticker is IMGN and the CUSIP is 45253H101. A total of 268 filers reported holding IMMUNOGEN INC in Q2 2023. The put-call ratio across all filers is 0.38 and the average weighting 0.4%.

Quarter-by-quarter ownership
Rock Springs Capital Management LP ownership history of IMMUNOGEN INC
ValueSharesWeighting
Q3 2023$12,051,123
+467.1%
759,365
+574.3%
0.32%
+533.3%
Q2 2023$2,125,139112,6200.05%
Other shareholders
IMMUNOGEN INC shareholders Q2 2023
NameSharesValueWeighting ↓
Redmile Group, LLC 3,984,734$15,421,0001.00%
Moloney Securities Asset Management, LLC 274,450$1,062,0000.55%
Schonfeld Strategic Advisors LLC 1,025,176$3,968,0000.40%
Orbimed Advisors 6,095,647$23,590,0000.27%
TWIN FOCUS CAPITAL PARTNERS, LLC 113,216$438,0000.26%
PINNACLE ASSOCIATES LTD 1,589,959$6,153,0000.12%
Baker Brothers Advisors 3,015,353$11,669,0000.10%
BAXTER BROS INC 58,000$224,0000.07%
SIMON QUICK ADVISORS, LLC 25,000$97,0000.06%
ClearBridge Investments 14,428,856$55,840,0000.06%
View complete list of IMMUNOGEN INC shareholders