The following table details the trading activities
(stock purchases, stock sales, and stock option exercises)
the Securities and Exchange Commission (SEC)
by insider Richter Kirk A since year 2005.
The trader's CIK number is 1200843.
At the time of this reporting, Richter Kirk A is the Treasurer of Sigma Aldrich Corp .
(stock ticker symbol SIAL).
See this page for all insider trading activities at Sigma Aldrich Corp .
|Trade Date||Symbol||Company Name (Issuer)||Trade Type||Shares||Price ($)||Value ($)|
|2012-02-14||SIAL||Sigma Aldrich Corp||Option Ex||20,000||25.32||506,300|
|2012-02-14||SIAL||Sigma Aldrich Corp||Sale||18,500||70.00||1,295,000|
|2010-08-31||SIAL||Sigma Aldrich Corp||Option Ex||24,000||18.25||438,000|
|2010-08-31||SIAL||Sigma Aldrich Corp||Sale||24,000||53.00||1,272,000|
|2009-03-04||SIAL||Sigma Aldrich Corp||Option Ex||6,600||13.44||88,684|
|2009-03-04||SIAL||Sigma Aldrich Corp||Sale||6,600||33.74||222,684|
|2009-02-27||SIAL||Sigma Aldrich Corp||Sale||3,400||36.04||122,536|
|2009-02-27||SIAL||Sigma Aldrich Corp||Option Ex||3,400||13.44||45,685|
|2008-01-09||SIAL||Sigma Aldrich Corp||Option Ex||1,400||18.44||25,811|
|2007-08-10||SIAL||Sigma Aldrich Corp||Option Ex||8,600||18.44||158,558|
|2007-08-08||SIAL||Sigma Aldrich Corp||Sale||9,200||50.85||467,783|
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Richter Kirk A (Treasurer of Sigma Aldrich Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.