RICHTER KIRK A 4
4 · SIGMA ALDRICH CORP · Filed Sep 1, 2011
Insider Transaction Report
Form 4
RICHTER KIRK A
Treasurer
Transactions
- Gift
Common Stock, $1 Par Value
2011-08-31$64.39/sh−900$57,951→ 77,657 total
4 · SIGMA ALDRICH CORP · Filed Sep 1, 2011
Common Stock, $1 Par Value