GROUP ONE TRADING, L.P. - DERMA SCIENCES INC ownership

DERMA SCIENCES INC's ticker is DSCI and the CUSIP is 249827502. A total of 52 filers reported holding DERMA SCIENCES INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of DERMA SCIENCES INC
ValueSharesWeighting
Q1 2016$1,0000.0%2090.0%0.00%
Q4 2015$1,0000.0%2090.0%0.00%
Q3 2015$1,000
-99.2%
209
-98.6%
0.00%
-100.0%
Q3 2014$127,000
+7.6%
15,233
+49.2%
0.00%0.0%
Q2 2014$118,000
+268.8%
10,211
+292.4%
0.00%
+100.0%
Q3 2013$32,000
-8.6%
2,6020.0%0.00%0.0%
Q2 2013$35,0002,6020.00%
Other shareholders
DERMA SCIENCES INC shareholders Q3 2013
NameSharesValueWeighting ↓
Stonepine Capital Management, LLC 507,799$1,574,0001.86%
Krensavage Asset Management, LLC 906,046$2,809,0001.01%
DAFNA Capital Management LLC 353,718$1,097,0000.95%
Broadfin Capital, LLC 2,562,104$7,943,0000.77%
ROANOKE ASSET MANAGEMENT CORP/ NY 124,549$386,0000.18%
Senvest Management, LLC 489,807$1,518,0000.13%
Baker Brothers Advisors 3,752,390$11,632,0000.12%
Perceptive Advisors 432,884$1,341,0000.12%
Granahan Investment Management 1,028,460$3,188,0000.12%
Alambic Investment Management, L.P. 49,035$152,0000.05%
View complete list of DERMA SCIENCES INC shareholders