GROUP ONE TRADING, L.P. - ENTEROMEDICS INC ownership

ENTEROMEDICS INC's ticker is ETRM and the CUSIP is 29365M208. A total of 54 filers reported holding ENTEROMEDICS INC in Q4 2013. The put-call ratio across all filers is 0.05 and the average weighting 0.1%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ENTEROMEDICS INC
ValueSharesWeighting
Q4 2015$2,000
-33.3%
11,8490.0%0.00%
Q3 2015$3,0000.0%11,849
+212.8%
0.00%
Q1 2015$3,000
-89.7%
3,788
-83.7%
0.00%
Q3 2014$29,000
+314.3%
23,284
+389.5%
0.00%
Q2 2014$7,000
-94.8%
4,757
-93.6%
0.00%
-100.0%
Q1 2014$134,000
-47.0%
73,756
-40.6%
0.00%
-50.0%
Q4 2013$253,000
+462.2%
124,203
+246.9%
0.00%
+300.0%
Q3 2013$45,000
+50.0%
35,804
+34.7%
0.00%0.0%
Q2 2013$30,00026,5810.00%
Other shareholders
ENTEROMEDICS INC shareholders Q4 2013
NameSharesValueWeighting ↓
PERKINS CAPITAL MANAGEMENT INC 5,533,961$720,0000.77%
DAFNA Capital Management LLC 500,000$65,0000.06%
MPM ASSET MANAGEMENT LLC 1,113,168$145,0000.03%
Highlander Capital Management, LLC 108,370$14,0000.01%
Cutler Group LLC / CA 634,142$82,0000.01%
THOMPSON DAVIS & CO., INC. 22,500$3,0000.00%
Dorsey & Whitney Trust CO LLC 58,954$7,0000.00%
Princeton Portfolio Strategies Group LLC 13,000$2,0000.00%
TWO SIGMA SECURITIES, LLC 11,142$1,0000.00%
GOLDMAN SACHS GROUP INC 91,170$12,0000.00%
View complete list of ENTEROMEDICS INC shareholders