THORATEC CORP's ticker is THOR and the CUSIP is 885175307. A total of 5 filers reported holding THORATEC CORP in Q4 2011. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2015 | $45,000 | +400.0% | 719 | +268.7% | 0.00% | – |
| Q2 2015 | $9,000 | +12.5% | 195 | 0.0% | 0.00% | – |
| Q1 2015 | $8,000 | -99.6% | 195 | -99.6% | 0.00% | -100.0% |
| Q1 2014 | $1,970,000 | +428.2% | 55,000 | +450.0% | 0.06% | +369.2% |
| Q3 2013 | $373,000 | -85.1% | 10,000 | -87.5% | 0.01% | -85.2% |
| Q2 2013 | $2,505,000 | +344.9% | 80,000 | +433.3% | 0.09% | +340.0% |
| Q1 2013 | $563,000 | +100.4% | 15,000 | +100.0% | 0.02% | +81.8% |
| Q4 2012 | $281,000 | -88.6% | 7,500 | -89.5% | 0.01% | -89.0% |
| Q3 2012 | $2,464,000 | +22.3% | 71,200 | +18.7% | 0.10% | +11.1% |
| Q2 2012 | $2,015,000 | -37.9% | 60,000 | -37.6% | 0.09% | -38.4% |
| Q1 2012 | $3,243,000 | +86.1% | 96,200 | +85.2% | 0.15% | +82.5% |
| Q4 2011 | $1,743,000 | – | 51,935 | – | 0.08% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 1,904,949 | $59,643,953,000 | 10.29% |
| KING INVESTMENT ADVISORS INC/TX | 200,620 | $6,281,000 | 2.60% |
| SECTOR GAMMA AS | 200,000 | $6,262,000 | 1.83% |
| Cohen Capital Management, Inc. | 150,165 | $4,702,000 | 1.50% |
| PRIO WEALTH LIMITED PARTNERSHIP | 522,673 | $16,364,000 | 0.98% |
| Marshall Wace North America L.P. | 364,926 | $11,426,000 | 0.90% |
| PALISADE CAPITAL MANAGEMENT, LP | 890,359 | $27,877,000 | 0.80% |
| Waterstone Capital Management, L.P. | 269,500 | $8,438,000 | 0.75% |
| Cortina Asset Management, LLC | 549,936 | $17,218,000 | 0.68% |
| Baldwin Investment Management, LLC | 43,500 | $1,362,000 | 0.67% |