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 10,906,962$69,914,0003.04%
Fernwood Investment Management, LLC 224,500$1,439,0000.77%
Telemetry Investments, L.L.C. 272,000$1,744,0000.66%
Schonfeld Strategic Advisors LLC 865,356$5,547,0000.45%
Virtus ETF Advisers LLC 53,977$346,0000.43%
Endurant Capital Management LP 210,800$1,351,0000.41%
SPHERA FUNDS MANAGEMENT LTD. 500,000$3,205,0000.38%
TWIN FOCUS CAPITAL PARTNERS, LLC 113,216$726,0000.37%
Orbimed Advisors 2,834,126$18,167,0000.23%
PINNACLE ASSOCIATES LTD 1,322,231$8,476,0000.16%
View complete list of IMMUNOGEN INC shareholders