QUESTCOR PHARMACEUTICALS INC's ticker is and the CUSIP is 74835Y951. A total of 3 filers reported holding QUESTCOR PHARMACEUTICALS INC in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2014 | $133,186,000 | +579.0% | 1,440,000 | +376.7% | 2.05% | +521.5% |
| Q1 2014 | $19,615,000 | -28.3% | 302,100 | -39.8% | 0.33% | -20.1% |
| Q4 2013 | $27,339,000 | +73.1% | 502,100 | +84.4% | 0.41% | +36.8% |
| Q3 2013 | $15,793,000 | +13.8% | 272,300 | -10.8% | 0.30% | -11.7% |
| Q2 2013 | $13,883,000 | – | 305,400 | – | 0.34% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 502,100 | $27,339,000 | 0.41% |
| BALYASNY ASSET MANAGEMENT L.P. | 428,400 | $23,326,000 | 0.30% |
| Citadel Advisors | 92,200 | $5,020,000 | 0.01% |