ERNEST E. MADDOCK - 17 Dec 2025 Form 4 Insider Report for TERADYNE, INC (TER)

Role: Director
Signature: /s/ Ryan E. Driscoll, Attorney-in-Fact
Issuer symbol: TER
Transactions as of: 17 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 19 Dec 2025, 16:33:03 UTC
Previous filing: 01 Oct 2025
Next filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MADDOCK ERNEST E	Director	TERADYNE, INC., 600 RIVERPARK DRIVE, NORTH READING	/s/ Ryan E. Driscoll, Attorney-in-Fact	19 Dec 2025	0001227050

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TER	Common Stock	Other	$0	+2	+0.02%	$0.000000	9,595	17 Dec 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents deferred stock units ("DSUs") issued to the Reporting Person in accordance with his election to receive dividends paid on DSUs in the form of additional DSUs in lieu of cash. Such acquisition is exempt under Exchange Act Rule 16b-3(d). DSUs are settled one-for-one in Common Stock generally within ninety days of the date as of which a non-employee director no longer serves in such capacity.

Content

Represents deferred stock units ("DSUs") issued to the Reporting Person in accordance with his election to receive dividends paid on DSUs in the form of additional DSUs in lieu of cash. Such acquisition is exempt under Exchange Act Rule 16b-3(d). DSUs are settled one-for-one in Common Stock generally within ninety days of the date as of which a non-employee director no longer serves in such capacity.