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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 |
| 2008-11-19 Sale |
2008-11-20 09:44 am | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $22.78 | $45,560 | 2,000 (Direct) | View |
| 2008-10-29 Sale |
2008-10-30 5:01 pm | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $21.6 | $43,200 | 2,000 (Direct) |
View |
| 2004-05-10 Purchase |
2004-05-10 3:01 pm |
CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $10.13 | $20,260 | 2,000 (Direct) |
View |
| Transaction & Date | Reported Date | Company | Symbol | Insider Relationship |
Shares Traded | Average Price |
Total Amount | Shares Ownership | Filing |
| 2008-11-19 Exercise | 2008-11-20 09:44 am | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $11.89 | $23,780 | 4,000 (Direct) |
View |
| 2008-10-29 Exercise |
2008-10-30 5:01 pm | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $11.89 | $23,780 | 4,000 (Direct) | View |
| Transaction & Date | Reported Date | Exercisable Expiration | Company | Symbol | Insider Relationship |
Shares Traded | Conversion Price |
Shares Ownership | Filing |
| 2008-11-19 Exercise | 2008-11-20 09:44 am | 2003-09-10 2013-06-10 |
CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $11.89 | 6,000 (Direct) |
View |
| 2008-10-29 Exercise | 2008-10-30 5:01 pm | 2003-09-10 2013-06-10 | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 2,000 | $11.89 | 8,000 (Direct) |
View |
| 2008-06-11 Option Award | 2008-06-12 4:37 pm | 2009-06-11 2018-06-11 |
CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 15,000 | $17.63 | 15,000 (Direct) |
View |
| 2007-06-07 Option Award |
2007-06-08 4:38 pm | 2008-06-07 2017-06-07 |
CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 15,000 | $21.88 | 15,000 (Direct) |
View |
| 2006-06-08 Option Award |
2006-06-09 5:19 pm |
2007-06-08 2016-06-08 |
CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 17,500 | $22.71 | 17,500 (Direct) |
View |
| 2005-06-08 Option Award |
2005-06-09 5:02 pm |
2006-06-08 2015-06-08 | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 10,000 | $9.56 | 10,000 (Direct) |
View |
| 2004-06-10 Option Award | 2004-06-14 12:13 pm | 2005-06-10 2014-06-10 | CUBIST PHARMACEUTICALS INC | CBST | SINGLETON J MATTHEW (Director) | 12,500 | $10.09 | 12,500 (Direct) |
View |
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