Spark Investment Management LLC - IMMUNOGEN INC ownership

IMMUNOGEN INC's ticker is IMGN and the CUSIP is 45253H101. A total of 189 filers reported holding IMMUNOGEN INC in Q3 2019. The put-call ratio across all filers is 0.21 and the average weighting 0.0%.

Quarter-by-quarter ownership
Spark Investment Management LLC ownership history of IMMUNOGEN INC
ValueSharesWeighting
Q2 2019$479,000
+415.1%
220,900
+540.1%
0.03%
+725.0%
Q1 2019$93,000
-82.0%
34,510
-79.5%
0.00%
-91.7%
Q2 2016$518,000
-27.0%
168,200
+44.4%
0.05%
-59.7%
Q4 2014$710,000116,5000.12%
Other shareholders
IMMUNOGEN INC shareholders Q3 2019
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