Insider Sale: TER President/CEO disposes 554 shares under 10b5-1

Rhea-AI Filing Summary

Reporting person: Gregory Stephen Smith, who serves as President and CEO and a director of Teradyne, Inc. (TER), reported an insider sale on Form 4. The transaction occurred on 08/12/2025 and was reported on a Form 4 signed by an attorney-in-fact on 08/14/2025. The filing shows 554 shares of Teradyne common stock were sold at a price of $106 per share pursuant to a pre-established Rule 10b5-1 sales plan adopted on February 4, 2025. After the reported sale, the filing shows the reporting person beneficially owns 96,992.995 shares directly.

Positive

• Sale executed under a documented Rule 10b5-1 plan adopted on February 4, 2025, indicating pre-planned disposition
• Full disclosure provided on Form 4, including transaction date, price, and post-transaction beneficial ownership of 96,992.995 shares

Negative

• Reporting person disposed of 554 shares of Teradyne common stock on 08/12/2025
• Transaction recorded at $106 per share, reducing the reporting person’s direct holdings

Insights

Securities Analyst

TL;DR: A routine 10b5-1 sale by Teradyne's CEO of a small number of shares; filing provides clear disclosure of amount and remaining ownership.

The Form 4 documents a single non-derivative sale by Gregory S. Smith executed under a 10b5-1 plan, which typically indicates the trade was pre-planned and not opportunistic. The sale of 554 shares at $106 is explicitly disclosed along with the post-transaction direct beneficial ownership of 96,992.995 shares. For most investors, this filing is a transparency item rather than evidence of a material change in ownership or control.

Corporate Governance Expert

TL;DR: The transaction follows a documented 10b5-1 plan and was properly reported on Form 4, reflecting compliance with insider-trading protocols.

The disclosure states the shares were sold pursuant to a sales plan adopted on February 4, 2025, satisfying Rule 10b5-1 affirmative defense conditions as noted in the explanation. The Form 4 is signed by an attorney-in-fact, indicating procedural adherence. The filing contains no additional governance events or changes in officer/director status.

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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hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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)
08/12/2025

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	08/12/2025		S(1)		554	D	$106	96,992.995	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	08/14/2025
	** 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

Who reported the transaction in the Form 4 for TER?

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

What transaction did TER insider Gregory Smith report?

He reported the sale of 554 shares of Teradyne common stock on 08/12/2025 at a price of $106 per share.

Was the sale by the TER reporting person part of a 10b5-1 plan?

Yes. The Form 4 states the shares were sold pursuant to a sales plan adopted on February 4, 2025 intended to comply with Rule 10b5-1.

How many shares did the reporting person own after the reported transaction?

The filing shows 96,992.995 shares were beneficially owned by the reporting person following the reported transaction.

When was the Form 4 signed and filed?

The signature on the form by an attorney-in-fact, Ryan E. Driscoll, is dated 08/14/2025.