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

ENTEROMEDICS INC's ticker is ETRM and the CUSIP is 29365M208. A total of 44 filers reported holding ENTEROMEDICS INC in Q2 2013. The put-call ratio across all filers is - 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 Q2 2013
NameSharesValueWeighting ↓
ARDSLEY ADVISORY PARTNERS LP 3,915,000$7,125,0001.07%
Iguana Healthcare Management, LLC 1,150,000$2,094,0000.97%
MPM ASSET MANAGEMENT LLC 1,113,168$2,026,0000.86%
Trellus Management Company, LLC 344,348$627,0000.56%
Ghost Tree Capital, LLC 400,000$728,0000.43%
1492 Capital Management LLC 317,060$577,0000.29%
Rock Springs Capital Management LP 650,000$1,183,0000.27%
WHITE PINE CAPITAL LLC 810,450$1,476,0000.27%
Potomac Capital Management, Inc. 168,578$307,0000.26%
Granite Point Capital Management, L.P. 180,000$328,0000.24%
View complete list of ENTEROMEDICS INC shareholders