CEMPRA INC's ticker is and the CUSIP is 15130J909. A total of 4 filers reported holding CEMPRA INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $422,000 | -19.5% | 25,600 | -14.4% | 0.00% | -100.0% |
| Q1 2016 | $524,000 | -59.3% | 29,900 | -27.6% | 0.00% | 0.0% |
| Q4 2015 | $1,286,000 | +63.2% | 41,300 | +45.9% | 0.00% | 0.0% |
| Q3 2015 | $788,000 | +223.0% | 28,300 | +298.6% | 0.00% | – |
| Q2 2015 | $244,000 | -40.2% | 7,100 | -40.3% | 0.00% | – |
| Q1 2015 | $408,000 | -5.8% | 11,900 | -35.3% | 0.00% | – |
| Q4 2014 | $433,000 | +341.8% | 18,400 | +106.7% | 0.00% | – |
| Q3 2014 | $98,000 | +18.1% | 8,900 | +15.6% | 0.00% | – |
| Q2 2014 | $83,000 | +80.4% | 7,700 | +92.5% | 0.00% | – |
| Q1 2014 | $46,000 | – | 4,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | 2,536 | $5,962,000 | 0.19% |
| GROUP ONE TRADING, L.P. | 118,400 | $2,784,000 | 0.04% |
| SIMPLEX TRADING, LLC | 213 | $180,000 | 0.02% |
| Citadel Advisors | 18,400 | $433,000 | 0.00% |