TERADYNE, INC — Director's Dealing 2018

May 10, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADYNE, INC (TER)
CIK: 0000097210
Period of Report: 2018-05-08

Reporting Person: TUFANO PAUL J (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-08	Phantom Stock Units	$	M	4931	Acquired		Common Stock (4931)	Direct
2018-05-08	Restricted Stock Units	$	M	4931	Disposed		Common Stock (4931)	Direct
2018-05-08	Restricted Stock Units	$	A	4849	Acquired		Common Stock (4849)	Direct

Footnotes

F1: At the election of the reporting person, upon vesting of the RSU's, the shares were converted into Phantom Stock Units (PSU's) pursuant to the Teradyne, Inc. Deferral Plan for Non-Employee Directors (as restated on May 25, 2006). The PSU's are to be settled 1 for 1 in the Issuer's common stock generally within ninety (90) days of the date the non-employee director no longer serves as such.

F2: Each Restricted Stock Unit (RSU) represents the right to receive one share of Teradyne, Inc. common stock.

F3: These RSU's were issued under the Teradyne, Inc. 2006 Equity and Cash Compensation Incentive Plan, are time-based, and will vest in full on the earlier of May 9, 2018 or the date the 2018 Annual Meeting of Shareholders is held.

F4: These RSU's were issued under the Teradyne, Inc. 2006 Equity and Cash Compensation Incentive Plan, are time-based, and will vest in full on the earlier of May 8, 2019 or the date the 2019 Annual Meeting of Shareholders is held.