Spark Investment Management LLC - MERSANA THERAPEUTICS INC ownership

MERSANA THERAPEUTICS INC's ticker is MRSN and the CUSIP is 59045L106. A total of 77 filers reported holding MERSANA THERAPEUTICS INC in Q3 2019. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
Spark Investment Management LLC ownership history of MERSANA THERAPEUTICS INC
ValueSharesWeighting
Q2 2019$433,000
+56.3%
107,072
+102.8%
0.03%
+130.8%
Q1 2019$277,000
+38.5%
52,800
+7.3%
0.01%
-7.1%
Q4 2018$200,000
-49.1%
49,200
+97.4%
0.01%
-44.0%
Q1 2018$393,000
+84.5%
24,929
+91.8%
0.02%
+127.3%
Q4 2017$213,000
-34.1%
13,000
-30.4%
0.01%
-35.3%
Q3 2017$323,00018,6880.02%
Other shareholders
MERSANA THERAPEUTICS INC shareholders Q3 2019
NameSharesValueWeighting ↓
Bain Capital Life Sciences Investors, LLC 8,663,673$40,026,0004.69%
Opaleye Management Inc. 1,047,000$4,837,0002.18%
Sarissa Capital Management LP 4,299,297$19,863,0002.00%
Decheng Capital Management III (Cayman), LLC 904,268$4,178,0001.58%
SILVERARC CAPITAL MANAGEMENT, LLC 850,000$3,927,0001.21%
Orbimed Advisors 9,011,437$41,633,0000.75%
Avoro Capital Advisors LLC 7,550,000$34,881,0000.69%
Rock Springs Capital Management LP 4,075,958$18,831,0000.55%
Artal Group S.A. 2,200,000$10,164,0000.54%
DAFNA Capital Management LLC 406,763$1,879,0000.51%
View complete list of MERSANA THERAPEUTICS INC shareholders