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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 |
| 2009-11-11 Sale |
2009-11-12 06:10 am | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 28,600 | $55.12 | $1,576,328 | 8,340 (Direct) | View |
| 2008-07-30 Sale |
2008-07-31 11:47 am | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 5,514 | $60.94 | $336,008 | 6,400 (Direct) |
View |
| 2003-07-28 Sale |
2008-01-17 11:54 am |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 1,000 | $55.85 | $55,850 | 12,914 (Direct) |
View |
| 2007-10-31 Sale |
2007-11-01 3:27 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 5,514 | $50.9 | $280,663 | 13,914 (Direct) |
View |
| Transaction & Date |
Reported Date | Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount | Shares Ownership |
Filing |
| 2010-02-17 Option Award |
2010-02-18 10:11 am | SIGMA ALDRICH CORP | None | HUMMEL LARRY M (VP, Sigma Chemical) | 600 | $48.61 | $29,166 | 8,940 (Direct) | View |
| 2009-11-11 Exercise | 2009-11-12 06:10 am |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 30,000 | $25.32 | $759,450 | 36,940 (Direct) | View |
| 2009-02-18 Option Award | 2009-02-19 6:40 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, St. Louis Operations) | 540 | $37.56 | $20,282 | 6,940 (Direct) | View |
| 2008-01-17 Other | 2008-01-17 11:54 am | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 1,000 | $0 | $0 | 11,914 (Direct) |
View |
| 2007-10-30 Exercise | 2007-10-30 12:41 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 41,600 | $31.85 | $1,324,948 | 19,428 (Direct) |
View |
| 2007-05-01 Exercise | 2007-05-03 5:49 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 24,000 | $30.13 | $723,029 | 13,028 (Direct) |
View |
| 2007-01-02 Other |
2007-02-20 5:27 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 6,514 | $38.86 | $253,134 | 13,028 (Direct) |
View |
| 2006-10-31 Exercise |
2006-10-31 3:30 pm |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 30,000 | $50.53 | $1,515,904 | 6,514 (Direct) |
View |
| 2006-02-17 Exercise |
2006-02-22 6:23 pm |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 30,000 | $52.17 | $1,565,192 | 6,514 (Direct) |
View |
| 2005-02-14 Exercise | 2005-02-15 11:02 am | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 20,000 | $49.17 | $983,340 | 6,514 (Direct) |
View |
| 2003-07-28 Exercise |
2003-07-29 5:32 pm | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 2,913 | $35 | $101,945 | 6,514 (Direct) | View |
| Transaction & Date |
Reported Date | Exercisable Expiration |
Company | Symbol | Insider Relationship |
Shares Traded |
Conversion Price | Shares Ownership | Filing |
| 2010-02-16 Option Award |
2010-02-18 10:11 am | 2011-02-16 2020-02-16 |
SIGMA ALDRICH CORP | None | HUMMEL LARRY M (VP, Sigma Chemical) | 2,594 | $48.61 | 2,594 (Direct) |
View |
| 2010-02-16 Option Award |
2010-02-18 10:11 am |
2011-02-16 2020-02-16 |
SIGMA ALDRICH CORP | None | HUMMEL LARRY M (VP, Sigma Chemical) | 5,406 | $48.61 | 5,406 (Direct) | View |
| 2009-11-11 Exercise | 2009-11-12 06:10 am | 2003-05-07 2012-05-07 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 7,800 | $25.32 | 0 (Direct) | View |
| 2009-11-11 Exercise | 2009-11-12 06:10 am | 2003-05-07 2012-05-07 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 22,200 | $25.32 | 0 (Direct) | View |
| 2009-02-17 Option Award | 2009-02-19 6:40 pm |
2010-02-17 2019-02-17 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, St. Louis Operations) | 3,868 | $37.56 | 3,868 (Direct) | View |
| 2009-02-17 Option Award |
2009-02-19 6:40 pm | 2010-02-17 2019-02-17 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, St. Louis Operations) | 2,032 | $37.56 | 2,032 (Direct) |
View |
| 2008-02-15 Option Award |
2008-02-19 4:28 pm | 2009-02-15 2018-02-15 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 1,850 | $52.76 | 1,850 (Direct) |
View |
| 2008-02-15 Option Award | 2008-02-19 4:28 pm | 2009-02-15 2018-02-15 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (VP, Sigma Chemical) | 4,050 | $52.76 | 4,050 (Direct) |
View |
| 2007-10-30 Exercise | 2007-10-30 12:41 pm |
2001-11-13 2010-11-13 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 24,000 | $18.25 | 0 (Direct) |
View |
| 2007-05-01 Exercise | 2007-05-03 5:49 pm | 2001-11-13 2010-11-13 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 12,000 | $18.25 | 24,000 (Direct) | View |
| 2007-02-16 Option Award | 2007-02-20 5:27 pm |
2008-02-16 2017-02-16 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 7,500 | $41.62 | 7,500 (Direct) |
View |
| 2000-11-13 Option Award | 2007-02-20 5:27 pm |
2001-11-13 2010-11-13 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 18,000 | $18.25 | 36,000 (Direct) |
View |
| 2002-05-07 Option Award |
2007-02-20 5:27 pm |
2003-05-07 2012-05-07 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 15,000 | $25.32 | 30,000 (Direct) | View |
| 2003-05-06 Option Award | 2007-02-20 5:27 pm | 2004-05-06 2013-05-06 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 7,500 | $25.86 | 15,000 (Direct) |
View |
| 2004-05-04 Option Award |
2007-02-20 5:27 pm | 2005-05-04 2014-05-04 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 7,500 | $28.66 | 15,000 (Direct) |
View |
| 2005-07-08 Option Award | 2007-02-20 5:27 pm | 2006-07-08 2015-07-08 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 3,750 | $28.82 | 7,500 (Direct) |
View |
| 2006-05-01 Option Award |
2007-02-20 5:27 pm |
2007-05-01 2016-05-01 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 5,000 | $34.03 | 10,000 (Direct) |
View |
| 2006-10-31 Exercise | 2006-10-31 3:30 pm |
2004-03-09 2009-03-09 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 3,000 | $26.88 | 12,000 (Direct) | View |
| 2006-10-31 Exercise | 2006-10-31 3:30 pm |
2000-03-09 2009-03-09 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 12,000 | $26.88 | 0 (Direct) | View |
| 2006-05-01 Option Award |
2006-05-03 1:08 pm | 2007-05-01 2016-05-01 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 5,000 | $68.06 | 5,000 (Direct) | View |
| 2006-02-17 Exercise | 2006-02-22 6:23 pm | 1998-01-01 2008-01-01 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 15,000 | $39.75 | 0 (Direct) |
View |
| 2005-07-08 Option Award | 2005-07-11 5:03 pm |
2006-07-08 2015-07-08 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M BLAZEVICH LARRY FISH PATRICIA K KELLEY RODNEY METEER JAMES W PORWOLL JOE RICHTER KIRK A VAN DEN DOOL GERRIT VUILLEUMYER HERBERT (President, Sigma Chemical) | 3,750 | $57.65 | 3,750 (Direct) | View |
| 2005-02-14 Exercise |
2005-02-15 11:02 am | 1998-11-11 2007-11-11 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 10,000 | $36 | 0 (Direct) | View |
| 2004-05-04 Option Award |
2004-05-06 3:53 pm | 2005-05-04 2014-05-04 | SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M COTTIER GILLES GLOVER SCOTT YOUSAF SHAHED PORWOLL JOE BLAZEVICH LARRY FISH PATRICIA K KELLEY RODNEY METEER JAMES W (President, Sigma Chemical) | 7,500 | $57.32 | 7,500 (Direct) |
View |
| 2003-07-28 Exercise | 2003-07-29 5:32 pm | 1997-05-07 2006-05-06 |
SIGMA ALDRICH CORP | SIAL | HUMMEL LARRY M (President, Sigma Chemical) | 2,000 | $25.5 | 0 (Direct) | View |
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