EXPONENT INC — Director's Dealing 2011

Jun 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXPONENT INC (EXPO)
CIK: 0000851520
Period of Report: 2011-06-01

Reporting Person: RIGGINS STEPHEN C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-06-01	Common Stock	M	1659	—	Acquired	8759	Direct
2011-06-01	Common Stock	M	1201	—	Acquired	9960	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-06-01	Restricted Stock Units	$	M	1201	Disposed	2012-05-29	Common Stock (1201)	Direct
2011-06-01	Restricted Stock Units	$	M	1659	Disposed	2012-06-03	Common Stock (1659)	Direct
2011-06-02	Restricted Stock Units	$	A	1425	Acquired	2013-06-02	Common Stock (1425)	Direct

Footnotes

F1: Reflects the conversion of shares of vested Restricted Stock Units granted on June 3, 2010 into shares of Common Stock on a 1:1 basis.

F2: Not applicable.

F3: Reflects the conversion of shares of vested Restricted Stock Units granted on May 29, 2008 into shares of Common Stock on a 1:1 basis.

F4: Restricted stock units will vest in three (3) equal installments on the day prior to the Company's annual shareholder meeting.

F5: Restricted stock units will cliff-vest on the day prior to the Company's next annual shareholder meeting.

F6: 1-for-1.