THORATEC CORP's ticker is and the CUSIP is 885175907. A total of 3 filers reported holding THORATEC CORP in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2015 | $784,000 | +99.0% | 17,600 | +87.2% | 0.00% | +100.0% |
| Q1 2015 | $394,000 | -54.7% | 9,400 | -64.9% | 0.00% | -33.3% |
| Q4 2014 | $870,000 | -18.8% | 26,800 | -33.2% | 0.00% | -25.0% |
| Q3 2014 | $1,072,000 | +270.9% | 40,100 | +383.1% | 0.00% | +300.0% |
| Q2 2014 | $289,000 | -73.9% | 8,300 | -73.1% | 0.00% | -80.0% |
| Q1 2014 | $1,107,000 | -7.2% | 30,900 | -5.2% | 0.01% | +25.0% |
| Q4 2013 | $1,193,000 | -32.4% | 32,600 | -31.1% | 0.00% | -33.3% |
| Q3 2013 | $1,764,000 | +23.0% | 47,300 | +3.3% | 0.01% | +20.0% |
| Q2 2013 | $1,434,000 | – | 45,800 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | 1,515 | $4,918,000 | 0.16% |
| GROUP ONE TRADING, L.P. | 51,500 | $1,672,000 | 0.02% |
| Timber Hill LLC | 26,800 | $870,000 | 0.00% |
| SIMPLEX TRADING, LLC | 80 | $13,000 | 0.00% |
| Citadel Advisors | 38,100 | $1,237,000 | 0.00% |