STEPAN CO — Director's Dealing 2010

Nov 3, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STEPAN CO (SCL)
CIK: 0000094049
Period of Report: 2010-11-01

Reporting Person: STEPAN F QUINN (Director, Chairman, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-01	Common Stock	M	3989	$23.675	Acquired	289970.183	Direct
2010-11-01	Common Stock	S	3989	$68.16	Disposed	285981.183	Direct
2010-11-01	Common Stock	M	5782	$24.94	Acquired	291763.183	Direct
2010-11-01	Common Stock	S	5782	$68.34	Disposed	285981.183	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-01	Employee Stock Option (Right to Buy)	$23.675	M	3989	Disposed	2012-02-10	Common Stock (3989)	Direct
2010-11-01	Employee Stock Option (Right to Buy)	$24.94	M	5782	Disposed	2014-02-09	Common Stock (5782)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	114691	Indirect
Common Stock	143063	Indirect
Common Stock	438846	Indirect
Common Stock	62519	Indirect
Common Stock	48774	Indirect

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $68.05 to $68.27. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

F2: This transaction was executed in multiple trades at prices ranging from $68.17 to $69.09. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.