THORATEC CORP's ticker is and the CUSIP is 885175957. A total of 3 filers reported holding THORATEC CORP in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2015 | $1,854,000 | +235.3% | 29,300 | +136.3% | 0.03% | +225.0% |
| Q2 2015 | $553,000 | +1806.9% | 12,400 | +1671.4% | 0.01% | – |
| Q1 2015 | $29,000 | -81.0% | 700 | -85.1% | 0.00% | -100.0% |
| Q4 2014 | $153,000 | -57.0% | 4,700 | -64.7% | 0.00% | -60.0% |
| Q3 2014 | $356,000 | +309.2% | 13,300 | +432.0% | 0.01% | +400.0% |
| Q2 2014 | $87,000 | -51.4% | 2,500 | -50.0% | 0.00% | -66.7% |
| Q1 2014 | $179,000 | -51.6% | 5,000 | -50.5% | 0.00% | -50.0% |
| Q4 2013 | $370,000 | +311.1% | 10,100 | +320.8% | 0.01% | +200.0% |
| Q3 2013 | $90,000 | – | 2,400 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Timber Hill LLC | 47,000 | $1,720,000 | 0.01% |
| GROUP ONE TRADING, L.P. | 10,100 | $370,000 | 0.01% |
| Citadel Advisors | 19,600 | $717,000 | 0.00% |