THORATEC CORP's ticker is THOR and the CUSIP is 885175307. A total of 234 filers reported holding THORATEC CORP in Q4 2013. The put-call ratio across all filers is 0.43 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2015 | $5,000 | +66.7% | 77 | 0.0% | 0.00% | – |
| Q2 2015 | $3,000 | 0.0% | 77 | 0.0% | 0.00% | – |
| Q1 2015 | $3,000 | +50.0% | 77 | 0.0% | 0.00% | – |
| Q4 2014 | $2,000 | 0.0% | 77 | 0.0% | 0.00% | – |
| Q3 2014 | $2,000 | -33.3% | 77 | 0.0% | 0.00% | – |
| Q2 2014 | $3,000 | -50.0% | 77 | -50.0% | 0.00% | – |
| Q1 2014 | $6,000 | +100.0% | 154 | +100.0% | 0.00% | – |
| Q4 2013 | $3,000 | 0.0% | 77 | 0.0% | 0.00% | -100.0% |
| Q3 2013 | $3,000 | +50.0% | 77 | +24.2% | 0.00% | – |
| Q2 2013 | $2,000 | – | 62 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ORACLE INVESTMENT MANAGEMENT INC | 1,232,600 | $40,010,000 | 5.25% |
| SECTOR GAMMA AS | 392,500 | $12,741,000 | 2.83% |
| IAT REINSURANCE CO LTD. | 605,318 | $19,649,000 | 2.73% |
| DECADE CAPITAL MANAGEMENT LLC | 455,900 | $14,799,000 | 2.54% |
| Park West Asset Management LLC | 399,472 | $12,967,000 | 2.06% |
| Rock Springs Capital Management LP | 533,500 | $17,317,000 | 2.03% |
| Antipodean Advisors LLC | 658,000 | $21,359,000 | 1.91% |
| CATAPULT CAPITAL MANAGEMENT LLC | 200,000 | $6,492,000 | 1.65% |
| Broadfin Capital, LLC | 1,000,000 | $32,460,000 | 1.41% |
| Cohen Capital Management, Inc. | 149,865 | $4,865,000 | 1.26% |