STEPAN CO — Director's Dealing 2005

Nov 8, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STEPAN CO (SCL)
CIK: 0000094049
Period of Report: 2005-11-04

Reporting Person: STEPAN F QUINN JR (Director, President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-11-04	Common Stock	M	2224	$19.75	Acquired	57092.2082	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-11-04	Employee Stock Option	$19.75	M	12000	Disposed	2006-05-06	Common Stock (12000)	Direct

Footnotes

F1: Net amount from stock option exercise pursuant to stock pyramiding exempt pursuant to Rule 16(b) 3(f) (2) Release No. 34-28869