CEMPRA INC's ticker is and the CUSIP is 15130J959. A total of 4 filers reported holding CEMPRA INC in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $2,000 | 0.0% | 181 | +1.1% | 0.00% | – |
| Q2 2017 | $2,000 | -88.2% | 179 | -51.9% | 0.00% | -100.0% |
| Q1 2017 | $17,000 | -93.3% | 372 | -54.6% | 0.00% | -93.3% |
| Q4 2016 | $255,000 | +2025.0% | 819 | +1160.0% | 0.02% | +1400.0% |
| Q3 2016 | $12,000 | +300.0% | 65 | +12.1% | 0.00% | – |
| Q2 2016 | $3,000 | -98.9% | 58 | -84.2% | 0.00% | -100.0% |
| Q1 2016 | $262,000 | +329.5% | 367 | +18.8% | 0.02% | +320.0% |
| Q4 2015 | $61,000 | -41.9% | 309 | +116.1% | 0.01% | -37.5% |
| Q3 2015 | $105,000 | +56.7% | 143 | +0.7% | 0.01% | +33.3% |
| Q2 2015 | $67,000 | +76.3% | 142 | -27.2% | 0.01% | +50.0% |
| Q1 2015 | $38,000 | +192.3% | 195 | -21.4% | 0.00% | +100.0% |
| Q4 2014 | $13,000 | – | 248 | – | 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% |