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SIGMA ALDRICH CORP·4

Feb 18, 10:45 AM ET

Walton Steve 4

4 · SIGMA ALDRICH CORP · Filed Feb 18, 2010

Insider Transaction Report

Form 4

Period: 2010-02-16

SIGMA ALDRICH CORPSIAL

VP, EHS, Compliance & Quality

Transactions

Award
Common Stock, $1 Par Value
2010-02-17$48.61/sh+600$29,166→ 3,421 total
Award
ISO Stock Option, Right to Buy
2010-02-16$48.61/sh+2,439$118,560→ 2,439 total
Exercise: $48.61From: 2011-02-16Exp: 2020-02-16→ Common Stock, $1 Par Value (2,439 underlying)
Award
NQ Stock Option, Right to Buy
2010-02-16$48.61/sh+4,061$197,405→ 4,061 total
Exercise: $48.61From: 2011-02-16Exp: 2020-02-16→ Common Stock, $1 Par Value (4,061 underlying)

Holdings

Common Stock, $1 Par Value
(indirect: By 401(k))

Footnotes (3)

[F1]Employee stock option granted pursuant to the Sigma-Aldrich Corporation Long-Term Incentive Plan of 2003 in compliance with Rule 16(b)-3
[F2]Shares granted vest for a period of 3 years as established in the Sigma-Aldrich Corporation 2003 Long-Term Incentive Plan
[F3]The amount disclosed (in dollars not shares) is based on a Company Plan Statement Date as of 12/31/2009

Documents

2 files

4
primary_doc.xmlPrimary
PRIMARY DOCUMENT
EX-24
walton.htm
POWER OF ATTORNEY