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Form 4 Filings | Insider Buys | Significant Buys |
Penny Stocks Insider Buying |
Insider Sales |
| Insider Buy Sell Ratios | Stock Options |
Insider Trading Top Lists |
Insider Trading Graph View |
Insider Watch |
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"Insiders might sell their shares for any number of reasons, but they buy them for only one:
they think the price will rise" - Peter Lynch ==>> What is insider trading>> |

| Transaction & Date | Reported Date |
Company | Symbol | Insider Relationship |
Shares Traded | Average Price | Total Amount |
Shares Ownership |
Filing |
| 2008-08-04 Sale |
2008-08-06 12:44 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 2,500 | $22.52 | $56,300 | 11,250 (Direct) | View |
| 2007-08-08 Sale |
2007-08-10 12:11 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 11,250 | $20.18 | $227,072 | 8,750 (Direct) |
View |
| 2007-05-22- -2007-05-23 Sale |
2007-05-24 4:11 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 9,375 | $19 | $178,126 | 8,750 (Direct) |
View |
| 2007-05-18 Sale |
2007-05-21 8:20 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 7,500 | $17.98 | $134,831 | 8,750 (Direct) |
View |
| 2007-02-26 Sale | 2007-02-28 7:54 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,250 | $20.81 | $26,012 | 3,750 (Direct) | View |
| 2007-02-20 Sale | 2007-02-22 3:56 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $19.07 | $35,756 | 5,000 (Direct) |
View |
| 2006-12-14 Sale |
2006-12-18 2:05 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $15.72 | $78,625 | 5,000 (Direct) | View |
| 2006-09-07 Sale | 2006-09-08 4:24 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 3,500 | $14.38 | $50,330 | 5,000 (Direct) | View |
| 2006-02-09 Sale | 2006-02-10 1:55 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,250 | $20.85 | $109,471 | 0 (Direct) | View |
| 2005-11-16 Sale | 2005-11-17 1:17 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $18.99 | $35,606 | 0 (Direct) |
View |
| 2005-05-18 Sale | 2005-05-19 12:33 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,718 | $15.23 | $87,085 | 0 (Direct) |
View |
| 2005-05-12 Sale | 2005-05-12 5:25 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.13 | $26,494 | 5,718 (Direct) |
View |
| 2004-08-13 Sale |
2004-08-13 5:16 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9.7 | $18,188 | 3,843 (Direct) |
View |
| 2004-04-30 Sale |
2004-05-03 5:54 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,249 | $14 | $73,486 | 1,968 (Direct) |
View |
| 2004-03-12- -2004-03-15 Sale |
2004-03-15 6:05 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 22,783 | $12.75 | $290,456 | 7,217 (Direct) |
View |
| 2004-02-19 Sale | 2004-02-20 12:59 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $13.5 | $67,500 | 30,000 (Direct) |
View |
| Transaction & Date | Reported Date |
Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Ownership | Filing |
| 2008-05-23 Option Award | 2008-05-27 4:43 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $0 | $0 | 13,750 (Direct) | View |
| 2007-08-08 Exercise |
2007-08-10 12:11 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 11,250 | $15.5 | $174,375 | 20,000 (Direct) |
View |
| 2007-05-22- -2007-05-23 Exercise |
2007-05-24 4:11 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 9,375 | $11.78 | $110,475 | 14,375 (Direct) | View |
| 2007-05-18 Exercise Option Award | 2007-05-21 8:20 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 12,500 | $4.965 | $62,062 | 16,250 (Direct) | View |
| 2007-02-20 Exercise | 2007-02-22 3:56 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $15 | $28,125 | 6,875 (Direct) | View |
| 2006-12-14 Exercise | 2006-12-18 2:05 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $8.875 | $44,375 | 10,000 (Direct) | View |
| 2006-09-07 Exercise |
2006-09-08 4:24 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 3,500 | $5.5 | $19,250 | 8,500 (Direct) |
View |
| 2006-06-16 Option Award |
2006-06-19 6:21 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $0 | $0 | 5,000 (Direct) |
View |
| 2006-02-09 Exercise | 2006-02-10 1:55 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,250 | $8.87 | $46,566 | 1,875 (Direct) |
View |
| 2005-11-16 Exercise | 2005-11-17 1:17 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $13.13 | $24,619 | 1,875 (Direct) |
View |
| 2005-05-12 Exercise | 2005-05-12 5:25 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $11.62 | $21,797 | 7,593 (Direct) | View |
| 2004-11-17 Exercise | 2004-11-18 1:06 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $6.125 | $11,484 | 5,718 (Direct) |
View |
| 2004-08-13 Exercise | 2004-08-13 5:16 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9 | $16,875 | 5,718 (Direct) |
View |
| 2004-05-12 Exercise |
2004-05-12 5:00 pm |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $8.813 | $16,524 | 3,843 (Direct) | View |
| 2003-10-21 Exercise | 2003-10-23 5:20 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 7,500 | $6.375 | $47,812 | 35,000 (Direct) |
View |
| 2003-09-02 Exercise |
2003-09-02 6:07 pm | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 27,500 | $2.25 | $61,875 | 27,500 (Direct) |
View |
| Transaction & Date |
Reported Date |
Exercisable Expiration |
Company | Symbol | Insider Relationship |
Shares Traded |
Conversion Price | Shares Ownership |
Filing |
| 2007-08-08 Exercise | 2007-08-10 12:11 pm |
2003-08-21 2008-08-21 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.4 | 0 (Direct) | View |
| 2007-08-08 Exercise | 2007-08-10 12:11 pm |
2003-11-05 2008-11-05 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.79 | 0 (Direct) | View |
| 2007-08-08 Exercise |
2007-08-10 12:11 pm | 2004-05-20 2009-05-20 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.46 | 0 (Direct) | View |
| 2007-08-08 Exercise | 2007-08-10 12:11 pm | 2005-05-24 2010-05-24 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.91 | 0 (Direct) |
View |
| 2007-08-08 Exercise | 2007-08-10 12:11 pm |
2005-08-18 2010-08-18 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $15.45 | 0 (Direct) | View |
| 2007-08-08 Exercise |
2007-08-10 12:11 pm | 2005-11-17 2010-11-17 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $18.99 | 0 (Direct) |
View |
| 2007-05-22 Exercise | 2007-05-24 4:11 pm | 2004-08-19 2009-08-19 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $10 | 0 (Direct) | View |
| 2007-05-22 Exercise | 2007-05-24 4:11 pm | 2004-11-18 2009-11-18 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $10.67 | 0 (Direct) | View |
| 2007-05-23 Exercise | 2007-05-24 4:11 pm |
2003-05-29 2008-05-29 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $13.65 | 0 (Direct) | View |
| 2007-05-23 Exercise |
2007-05-24 4:11 pm | 2004-02-26 2009-02-26 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $12.8 | 0 (Direct) |
View |
| 2007-05-23 Exercise | 2007-05-24 4:11 pm |
2005-02-24 2010-02-24 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $11.8 | 0 (Direct) | View |
| 2007-05-18 Exercise | 2007-05-21 8:20 pm | 2002-05-30 2007-05-30 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9.43 | 0 (Direct) | View |
| 2007-05-18 Exercise |
2007-05-21 8:20 pm | 2002-08-19 2007-08-19 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $5.79 | 0 (Direct) | View |
| 2007-05-18 Exercise | 2007-05-21 8:20 pm |
2002-11-14 2007-11-14 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9.29 | 0 (Direct) |
View |
| 2007-05-18 Exercise |
2007-05-21 8:20 pm |
2003-02-20 2008-02-20 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $8.59 | 0 (Direct) |
View |
| 2007-02-20 Exercise |
2007-02-22 3:56 pm |
2002-02-28 2007-02-28 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $15 | 0 (Direct) |
View |
| 2006-12-14 Exercise |
2006-12-18 2:05 pm |
1998-11-18 2008-05-18 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 5,000 | $8.875 | 0 (Direct) |
View |
| 2006-09-07 Exercise | 2006-09-08 4:24 pm |
1997-11-16 2007-05-18 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 3,500 | $5.5 | 0 (Direct) | View |
| 2006-02-09 Exercise |
2006-02-10 1:55 pm | 1997-11-16 2007-05-18 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,500 | $5.5 | 3,500 (Direct) |
View |
| 2006-02-09 Exercise |
2006-02-10 1:55 pm |
2001-02-23 2006-02-23 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9.375 | 0 (Direct) | View |
| 2006-02-09 Exercise | 2006-02-10 1:55 pm | 2001-05-24 2006-05-24 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $11.06 | 0 (Direct) | View |
| 2005-11-16 Exercise | 2005-11-17 1:17 pm | 2000-11-17 2005-11-17 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $13.13 | 0 (Direct) |
View |
| 2005-11-17 Option Award | 2005-11-17 1:17 pm |
2005-11-17 2010-11-17 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $18.99 | 1,875 (Direct) |
View |
| 2005-08-18 Option Award | 2005-08-18 4:20 pm | 2005-08-18 2010-08-18 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $15.45 | 1,875 (Direct) |
View |
| 2005-05-24 Option Award |
2005-05-25 2:04 pm |
2005-05-24 2010-05-24 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.91 | 1,875 (Direct) |
View |
| 2005-05-12 Exercise | 2005-05-12 5:25 pm | 2000-05-12 2005-05-12 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $11.62 | 0 (Direct) | View |
| 2005-02-24 Option Award |
2005-02-24 5:48 pm |
2005-02-24 2010-02-24 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $11.8 | 1,875 (Direct) |
View |
| 2004-11-18 Option Award |
2004-11-18 1:06 pm |
2004-11-18 2009-11-18 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $10.67 | 1,875 (Direct) | View |
| 2004-11-17 Exercise |
2004-11-18 1:06 pm | 1999-11-18 2004-11-18 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $6.125 | 0 (Direct) | View |
| 2004-08-19 Option Award |
2004-08-19 4:43 pm |
2004-08-19 2009-08-19 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $10 | 1,875 (Direct) |
View |
| 2004-08-13 Exercise |
2004-08-13 5:16 pm | 1999-08-13 2004-08-13 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $9 | 0 (Direct) | View |
| 2004-05-20 Option Award | 2004-05-20 7:00 pm |
2004-05-20 2009-05-20 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.46 | 1,875 (Direct) |
View |
| 2004-05-12 Exercise |
2004-05-12 5:00 pm |
1999-05-14 2004-05-14 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $8.813 | 0 (Direct) | View |
| 2004-02-26 Option Award |
2004-02-26 6:17 pm | 2004-02-26 2009-02-26 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $12.8 | 1,875 (Direct) | View |
| 2003-11-05 Option Award | 2003-11-06 2:26 pm | 2003-11-05 2008-11-05 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.79 | 1,875 (Direct) |
View |
| 2003-10-21 Exercise | 2003-10-23 5:20 pm | 1999-04-23 2003-10-25 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 7,500 | $6.375 | 0 (Direct) | View |
| 2003-09-02 Exercise |
2003-09-02 6:07 pm |
1994-09-03 2003-09-03 | THORATEC CORP | THOR | CHASE HOWARD E (Director) | 27,500 | $2.25 | 0 (Direct) |
View |
| 2003-08-21 Option Award | 2003-08-22 4:40 pm |
2003-08-21 2008-08-21 |
THORATEC CORP | THOR | CHASE HOWARD E (Director) | 1,875 | $14.4 | 1,875 (Direct) | View |
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