[Form 4] TERADYNE, INC Insider Trading Activity

Rhea-AI Filing Summary

Insider transaction report: Teradyne, Inc. director and President & CEO Gregory Stephen Smith reported a sale of 554 shares of Teradyne common stock on 09/22/2025 at a price of $126.39 per share. The filing states the shares were sold pursuant to a 10b5-1 trading plan adopted by the reporting person on February 4, 2025. After the reported sale, the Form 4 lists 95,884.995 shares beneficially owned by the reporting person. The Form 4 was signed by an attorney-in-fact on behalf of the reporting person on 09/24/2025.

Insights

Corporate Governance Expert

TL;DR: Routine, pre-planned insider sale under a 10b5-1 plan; not a standalone signal of material company change.

The transaction is a small, disclosed sale executed under a documented 10b5-1 plan adopted on February 4, 2025, which reduces the risk that the sale was based on non-public information. The reported sale amount—554 shares at $126.39—represents a de minimis change relative to the reported post-transaction beneficial ownership of 95,884.995 shares. The use of an attorney-in-fact signature is common for timely filings. From a governance perspective, this filing reflects compliance with Section 16 reporting requirements and established insider trading procedures.

Securities Analyst

TL;DR: Transaction is administratively notable but immaterial to Teradyne's valuation or capital structure.

The sale of 554 shares at $126.39 yields gross proceeds of approximately $69,996, but the Form 4 states this was executed under a pre-existing 10b5-1 plan, which typically staggers sales for personal liquidity rather than signaling company performance. The filing shows 95,884.995 shares remaining beneficially owned, suggesting continued significant insider ownership. There is no indication of additional derivative transactions or material changes to ownership percentages in this filing.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Smith Gregory Stephen

(Last) (First) (Middle)

TERADYNE, INC.

600 RIVERPARK DRIVE

(Street)

NORTH READING MA 01864

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TERADYNE, INC [ TER ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
09/22/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/22/2025		S(1)		554	D	$126.39	95,884.995	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 4, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	09/24/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider activity did TER report on this Form 4?

The reporting person sold 554 shares of Teradyne common stock on 09/22/2025 at $126.39 per share.

Who is the reporting person on this Form 4 for TER?

The reporting person is Gregory Stephen Smith, identified as a director and the President & CEO of Teradyne, Inc.

Was the sale part of a pre-arranged trading plan?

Yes. The filing states the shares were sold pursuant to a 10b5-1 sales plan adopted on February 4, 2025.

How many shares did the reporting person own after the sale?

The Form 4 lists 95,884.995 shares beneficially owned following the reported transaction.

When was the Form 4 signed and by whom?

The form was signed by an attorney-in-fact, Ryan E. Driscoll, on 09/24/2025 on behalf of the reporting person.