AIGEN INVESTMENT MANAGEMENT, LP - IMMUNOGEN INC ownership

IMMUNOGEN INC's ticker is IMGN and the CUSIP is 45253H101. A total of 238 filers reported holding IMMUNOGEN INC in Q4 2021. The put-call ratio across all filers is 0.39 and the average weighting 0.2%.

Quarter-by-quarter ownership
AIGEN INVESTMENT MANAGEMENT, LP ownership history of IMMUNOGEN INC
ValueSharesWeighting
Q1 2022$83,000
-41.1%
17,413
-13.9%
0.01%
+55.6%
Q4 2021$141,000
-24.2%
20,214
-11.8%
0.01%
-64.0%
Q1 2021$186,00022,916
+27846.3%
0.02%
Q4 2019$0820.00%
Other shareholders
IMMUNOGEN INC shareholders Q4 2021
NameSharesValueWeighting ↓
Redmile Group, LLC 17,503,417$277,779,22813.22%
Fairmount Funds Management LLC 5,929,592$94,102,62511.32%
CM Management, LLC 500,000$7,935,0008.42%
SILVERARC CAPITAL MANAGEMENT, LLC 1,307,435$20,748,9936.29%
Altium Capital Management LP 725,000$11,505,7506.00%
RA Capital Management 13,322,288$211,424,7114.16%
TANG CAPITAL MANAGEMENT LLC 1,500,000$23,805,0003.36%
BRIDGER MANAGEMENT, LLC 467,220$7,414,7812.73%
Birchview Capital, LP 190,000$3,015,3002.57%
Boxer Capital, LLC 2,961,000$46,991,0702.50%
View complete list of IMMUNOGEN INC shareholders