CEMPRA INC's ticker is and the CUSIP is 15130J909. A total of 2 filers reported holding CEMPRA INC in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $1,000 | -92.9% | 257 | -10.1% | 0.00% | -100.0% |
| Q2 2017 | $14,000 | -22.2% | 286 | -17.6% | 0.00% | 0.0% |
| Q1 2017 | $18,000 | +20.0% | 347 | -70.4% | 0.00% | 0.0% |
| Q4 2016 | $15,000 | -93.3% | 1,172 | +181.7% | 0.00% | -93.3% |
| Q3 2016 | $225,000 | +102.7% | 416 | -41.6% | 0.02% | +114.3% |
| Q2 2016 | $111,000 | +5.7% | 712 | +159.9% | 0.01% | -12.5% |
| Q1 2016 | $105,000 | -49.3% | 274 | -40.7% | 0.01% | -50.0% |
| Q4 2015 | $207,000 | +53.3% | 462 | -9.9% | 0.02% | +60.0% |
| Q3 2015 | $135,000 | +33.7% | 513 | +89.3% | 0.01% | +25.0% |
| Q2 2015 | $101,000 | -57.0% | 271 | +38.3% | 0.01% | -70.4% |
| Q1 2015 | $235,000 | +30.6% | 196 | -8.0% | 0.03% | +22.7% |
| Q4 2014 | $180,000 | – | 213 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | 501 | $1,721,000 | 0.06% |
| GROUP ONE TRADING, L.P. | 35,600 | $1,223,000 | 0.02% |
| SIMPLEX TRADING, LLC | 271 | $101,000 | 0.01% |
| Citadel Advisors | 7,100 | $244,000 | 0.00% |