Twin Tree Management, LP - TESARO INC ownership

TESARO INC's ticker is TSRO and the CUSIP is 881569107. A total of 3 filers reported holding TESARO INC in Q1 2019. The put-call ratio across all filers is - and the average weighting 0.6%.

Quarter-by-quarter ownership
Twin Tree Management, LP ownership history of TESARO INC
ValueSharesWeighting
Q4 2018$3,000
-100.0%
47
-100.0%
0.00%
-100.0%
Q4 2017$14,403,000
-34.8%
173,793
+1.6%
0.11%
-38.9%
Q3 2017$22,076,000
-40.8%
171,000
-35.8%
0.18%
-39.9%
Q2 2017$37,273,000
+24.6%
266,500
+37.1%
0.29%
+7.4%
Q1 2017$29,915,000
+281.6%
194,418
+233.5%
0.27%
+256.6%
Q4 2016$7,840,000
+90.8%
58,300
+42.2%
0.08%
+43.4%
Q3 2016$4,110,00041,0000.05%
Other shareholders
TESARO INC shareholders Q1 2019
NameSharesValueWeighting ↓
INTERWEST VENTURE MANAGEMENT CO 2,021,403$271,838,00064.82%
NEA Management Company, LLC 10,275,113$1,381,797,00054.94%
ORACLE INVESTMENT MANAGEMENT INC 1,248,086$167,843,00027.84%
BLUE JAY CAPITAL MANAGEMENT, LLC 89,695$12,062,0007.28%
Perceptive Advisors 687,993$92,521,0006.58%
Avoro Capital Advisors LLC 231,700$31,159,0006.30%
INTERNATIONAL BIOTECHNOLOGY TRUST PLC 94,500$12,705,0005.72%
Rock Springs Capital Management LP 613,500$82,503,0005.52%
SENZAR ASSET MANAGEMENT, LLC 142,300$19,136,0005.08%
BB BIOTECH AG 974,582$131,062,0004.85%
View complete list of TESARO INC shareholders