EXPONENT INC - Director's Dealing 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXPONENT INC (EXPO)
CIK: 0000851520
Period of Report: 2010-03-10

Reporting Person: GAULKE MICHAEL R (Director, Executive Chairman)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-10	Common Stock	M	22240	—	Acquired	185576	Indirect
2010-03-10	Common Stock	F	8696	$28.3	Disposed	176880	Indirect

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-10	Restricted Stock Units	$	M	22240	Disposed	2010-03-10	Common Stock (22240)	Direct

F1: Reflects the conversion of shares of vested Restricted Stock Units granted on March 10, 2006 into shares of Common Stock on a 1:1 basis.

F2: Reflects a 2-for-1 stock split which became effective on May 24, 2006.

F3: Not applicable.

F4: Reflects shares of common stock withheld by the Company to satify the tax withholding obligations of the Reporting Person.

F5: See Footnote 1.