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

DERMA SCIENCES INC's ticker is DSCI and the CUSIP is 249827502. A total of 55 filers reported holding DERMA SCIENCES INC in Q4 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 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 Q4 2013
NameSharesValueWeighting ↓
RA Capital Management 1,994,876$24,697,0002.58%
Broadfin Capital, LLC 771,598$9,552,0001.70%
Raging Capital Management, LLC 698,401$8,646,0001.49%
Camber Capital Management LP 950,000$11,761,0001.23%
DAFNA Capital Management LLC 57,009$706,0000.77%
JACOB ASSET MANAGEMENT OF NEW YORK LLC 44,027$545,0000.67%
Baker Brothers Advisors 2,558,857$31,679,0000.45%
THB ASSET MANAGEMENT 430,810$5,333,0000.33%
EAM Investors, LLC 100,658$1,246,0000.25%
ROANOKE ASSET MANAGEMENT CORP/ NY 32,741$390,0000.19%
View complete list of DERMA SCIENCES INC shareholders