GROUP ONE TRADING, L.P. - ALPHA PRO TECH LTD ownership

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ALPHA PRO TECH LTD's ticker is and the CUSIP is 20772959. A total of 2 filers reported holding ALPHA PRO TECH LTD in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

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Filings
Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ALPHA PRO TECH LTD
ValueSharesWeighting
Q2 2015$59,000
-27.2%
26,300
-26.1%
0.00%0.0%
Q1 2015$81,000
+72.3%
35,600
+96.7%
0.00%0.0%
Q4 2014$47,000–18,100–0.00%–
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Other shareholders
ALPHA PRO TECH LTD shareholders Q4 2014
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 18,100$47,0000.00%
SIMPLEX TRADING, LLC 24$1,0000.00%
View complete list of ALPHA PRO TECH LTD shareholders