TERADYNE, INC — Director's Dealing 2010

May 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADYNE, INC (TER)
CIK: 0000097210
Period of Report: 2010-05-13

Reporting Person: Gray Charles Jeffrey (VP,General Counsel & Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-13	Common Stock	M	4312	$6.29	Acquired	7357	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-13	Non-Qualified Stock Option (Right to Buy)	$6.29	M	4312	Disposed	2016-05-01	Common Stock (4312)	Direct

Footnotes

F1: This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, May 1, 2010.