The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Richter Kirk A since 2007.
The trader's CIK number is 1200843.
At the time of the last reporting, Richter Kirk A was the Treasurer of Sigma Aldrich Corp. (stock ticker symbol SIAL).
Also see all insider trading activities at Sigma Aldrich Corp.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2012 | SIAL | 0 | $0 | 18,500 | $1,295,000 | 20,000 | $506,300 |
| 2010 | SIAL | 0 | $0 | 24,000 | $1,272,000 | 24,000 | $438,000 |
| 2009 | SIAL | 0 | $0 | 10,000 | $345,220 | 10,000 | $134,369 |
| 2008 | SIAL | 0 | $0 | 0 | $0 | 1,400 | $25,811 |
| 2007 | SIAL | 0 | $0 | 9,200 | $467,783 | 8,600 | $158,558 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2012-02-14 | SIAL | Option Ex | 20,000 | 25.32 | 506,300 |
| 2012-02-14 | SIAL | Sale | 18,500 | 70.00 | 1,295,000 |
| 2010-08-31 | SIAL | Option Ex | 24,000 | 18.25 | 438,000 |
| 2010-08-31 | SIAL | Sale | 24,000 | 53.00 | 1,272,000 |
| 2009-03-04 | SIAL | Option Ex | 6,600 | 13.44 | 88,684 |
| 2009-03-04 | SIAL | Sale | 6,600 | 33.74 | 222,684 |
| 2009-02-27 | SIAL | Sale | 3,400 | 36.04 | 122,536 |
| 2009-02-27 | SIAL | Option Ex | 3,400 | 13.44 | 45,685 |
| 2008-01-09 | SIAL | Option Ex | 1,400 | 18.44 | 25,811 |
| 2007-08-10 | SIAL | Option Ex | 8,600 | 18.44 | 158,558 |
| 2007-08-08 | SIAL | 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.