EcoR1 Capital, LLC - MERSANA THERAPEUTICS INC ownership

MERSANA THERAPEUTICS INC's ticker is MRSN and the CUSIP is 59045L106. A total of 129 filers reported holding MERSANA THERAPEUTICS INC in Q1 2022. The put-call ratio across all filers is 4.48 and the average weighting 0.1%.

Quarter-by-quarter ownership
EcoR1 Capital, LLC ownership history of MERSANA THERAPEUTICS INC
ValueSharesWeighting
Q3 2023$24,593,154
+1611.4%
19,364,688
+6127.4%
0.83%
+1560.0%
Q2 2022$1,437,000
+10.3%
310,960
-4.8%
0.05%
+22.0%
Q1 2022$1,303,000
-76.9%
326,578
-76.5%
0.04%
-92.8%
Q2 2019$5,639,000
-53.4%
1,392,231
-39.5%
0.57%
-48.9%
Q1 2019$12,098,000
+144.1%
2,300,000
+364.1%
1.12%
+150.0%
Q3 2018$4,956,000495,6180.45%
Other shareholders
MERSANA THERAPEUTICS INC shareholders Q1 2022
NameSharesValueWeighting ↓
SILVERARC CAPITAL MANAGEMENT, LLC 5,000,000$6,350,0001.92%
VR Adviser, LLC 11,328,000$14,386,5601.51%
Bain Capital Life Sciences Investors, LLC 8,663,673$11,002,8651.23%
Affinity Asset Advisors, LLC 2,850,000$3,619,5001.02%
EcoR1 Capital, LLC 19,364,688$24,593,1540.83%
Altium Capital Management LP 1,059,136$1,345,1030.70%
5AM Venture Management, LLC 1,305,000$1,657,3500.48%
Decheng Capital Management III (Cayman), LLC 904,268$1,148,4200.38%
COMMODORE CAPITAL LP 2,244,378$2,850,3600.33%
Philosophy Capital Management LLC 2,342,634$2,975,1450.32%
View complete list of MERSANA THERAPEUTICS INC shareholders