AMERICAN VANGUARD CORP — Director's Dealing 2004

Dec 16, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN VANGUARD CORP (AVD)
CIK: 0000005981
Period of Report: 2004-12-14

Reporting Person: JOHNSON GLEN D (Sr.VP AMVAC Chem. Corp.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-12-14	Common Stock	M	10900	$2.22	Acquired	13991	Direct
2004-12-14	Commom Stock	S	10900	$38.18	Disposed	3091	Direct
2004-12-15	Common Stock	M	80552	$2.22	Acquired	83643	Direct
2004-12-15	Common Stock	S	6400	$38.35	Disposed	77243	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-12-14	Stock Options (right to buy)	$2.22	M	10900	Disposed	2004-12-31	Common Stock (10900)	Direct
2004-12-15	Stock Options (right to buy)	$2.22	M	80552	Disposed	2004-12-31	Common Stock (80552)	Direct

Footnotes

F1: Represents 30,000 Stock Options granted June 24, 1999 with an exercise price of $8.06.

F2: The figures are adjusted for stock splits and stock dividends.

F3: The options vested in three equal installments on January 1, 2000, 2001 and 2002.