BAMCO INC /NY/ - TESARO INC ownership

TESARO INC's ticker is TSRO and the CUSIP is 881569107. A total of 269 filers reported holding TESARO INC in Q4 2017. The put-call ratio across all filers is 0.82 and the average weighting 0.5%.

Quarter-by-quarter ownership
BAMCO INC /NY/ ownership history of TESARO INC
ValueSharesWeighting
Q3 2017$1,695,000
+20.7%
13,128
+30.7%
0.01%
+14.3%
Q2 2017$1,404,000
+459.4%
10,041
+301.6%
0.01%
+600.0%
Q3 2016$251,000
-19.3%
2,500
-32.4%
0.00%
-50.0%
Q2 2016$311,000
+253.4%
3,700
+85.0%
0.00%
Q1 2016$88,0002,0000.00%
Other shareholders
TESARO INC shareholders Q4 2017
NameSharesValueWeighting ↓
INTERWEST VENTURE MANAGEMENT CO 2,021,738$115,522,00048.67%
NEA Management Company, LLC 10,420,555$595,431,00026.49%
ORACLE INVESTMENT MANAGEMENT INC 844,718$48,267,00011.70%
Camber Capital Management LP 1,725,000$98,567,0004.84%
BB BIOTECH AG 1,629,743$93,124,0002.57%
Iguana Healthcare Management, LLC 45,000$2,571,0001.69%
Cormorant Asset Management, LP 350,000$19,999,0001.49%
SECTORAL ASSET MANAGEMENT INC 225,260$12,871,0001.41%
Rock Springs Capital Management LP 573,000$32,741,0001.40%
Eversept Partners, LP 51,523$2,944,0241.37%
View complete list of TESARO INC shareholders