SIMPLEX TRADING, LLC - DERMA SCIENCES INC ownership

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DERMA SCIENCES INC's ticker is and the CUSIP is 249827902. A total of 1 filers reported holding DERMA SCIENCES INC in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.0%.

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Filings
Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of DERMA SCIENCES INC
ValueSharesWeighting
Q4 2016$0–3
-85.0%
0.00%–
Q1 2016$0–20
-60.0%
0.00%–
Q4 2015$0–50–0.00%–
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Other shareholders
DERMA SCIENCES INC shareholders Q4 2015
NameSharesValueWeighting ↓
SIMPLEX TRADING, LLC 50$00.00%
View complete list of DERMA SCIENCES INC shareholders