GROUP ONE TRADING, L.P. - MERGE HEALTHCARE INC CMN STOCK ownership

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MERGE HEALTHCARE INC CMN STOCK's ticker is and the CUSIP is 589499902. A total of 1 filers reported holding MERGE HEALTHCARE INC CMN STOCK in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of MERGE HEALTHCARE INC CMN STOCK
ValueSharesWeighting
Q3 2015$92,000
+922.2%
13,000
+209.5%
0.00%–
Q3 2014$9,000
+12.5%
4,200
+23.5%
0.00%–
Q4 2013$8,000
+100.0%
3,400
+142.9%
0.00%–
Q3 2013$4,000–1,400–0.00%–
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Other shareholders
MERGE HEALTHCARE INC CMN STOCK shareholders Q4 2014
NameSharesValueWeighting ↓
Citadel Advisors 500$2,0000.00%
View complete list of MERGE HEALTHCARE INC CMN STOCK shareholders