CEMPRA INC's ticker is and the CUSIP is 15130J959. A total of 3 filers reported holding CEMPRA INC in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $246,000 | +18.8% | 14,900 | +26.3% | 0.00% | – |
| Q1 2016 | $207,000 | -22.8% | 11,800 | +37.2% | 0.00% | – |
| Q4 2015 | $268,000 | -57.8% | 8,600 | -62.3% | 0.00% | -100.0% |
| Q3 2015 | $635,000 | -59.3% | 22,800 | -49.8% | 0.00% | 0.0% |
| Q2 2015 | $1,560,000 | +5.0% | 45,400 | +4.8% | 0.00% | 0.0% |
| Q1 2015 | $1,486,000 | +23.4% | 43,300 | -15.4% | 0.00% | 0.0% |
| Q4 2014 | $1,204,000 | +1035.8% | 51,200 | +427.8% | 0.00% | – |
| Q3 2014 | $106,000 | +165.0% | 9,700 | +162.2% | 0.00% | – |
| Q2 2014 | $40,000 | +81.8% | 3,700 | +94.7% | 0.00% | – |
| Q1 2014 | $22,000 | – | 1,900 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 63,700 | $2,189,000 | 0.03% |
| SIMPLEX TRADING, LLC | 142 | $67,000 | 0.01% |
| Citadel Advisors | 45,400 | $1,560,000 | 0.00% |