EXPONENT INC — Director's Dealing 2010

Jun 7, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXPONENT INC (EXPO)
CIK: 0000851520
Period of Report: 2010-06-03

Reporting Person: RIGGINS STEPHEN C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-03	Common Stock	M	1817	—	Acquired	11917	Direct
2010-06-03	Common Stock	M	1935	—	Acquired	13852	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-06-03	Restricted Stock Units	$	M	1817	Disposed	2011-05-22	Common Stock (1817)	Direct
2010-06-03	Restricted Stock Units	$	M	1935	Disposed	2011-05-28	Common Stock (1935)	Direct
2010-06-03	Restricted Stock Units	$	A	1659	Acquired	2012-06-03	Common Stock (1659)	Direct

Footnotes

F1: Conversion to common stock on a 1:1 basis of vested RSUs granted on May 22, 2007.

F2: Not applicable.

F3: Conversion to common stock on a 1:1 basis of vested RSUs granted on May 28, 2009.

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.