Teradyne CEO sells 1,108 shares under Rule 10b5-1 plan

Teradyne, Inc.'s President and CEO, who is also a director, reported a sale of common stock.

Rhea-AI Filing Summary

Teradyne, Inc.'s President and CEO, who is also a director, reported a sale of common stock. On December 12, 2025, the insider sold 1,108 shares of Teradyne common stock at $ 201.31 per share, coded as a sale transaction.

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. After this transaction, the insider beneficially owned 93,408.995 shares of Teradyne common stock, held directly.

Insider Trade Summary

Net Seller: 1,108 shares

Net Sell 1 txn

Insider Smith Gregory Stephen

Role President and CEO

Sold 1,108 shs ($223K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,108	$201.31	$223K

Holdings After Transaction: Common Stock — 93,408.995 shares (Direct)

Footnotes (1)

1. F1. 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.

FAQ

What insider transaction in Teradyne (TER) stock was reported?

The filing reports that Teradyne's President and CEO, who is also a director, sold 1,108 shares of Teradyne common stock on December 12, 2025.

At what price were the Teradyne (TER) shares sold in this Form 4?

The 1,108 shares of Teradyne common stock were sold at a price of $ 201.31 per share.

How many Teradyne (TER) shares does the insider own after the sale?

Following the reported transaction, the insider beneficially owned 93,408.995 shares of Teradyne common stock, held directly.

Was the Teradyne (TER) stock sale made under a Rule 10b5-1 plan?

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

Is this Teradyne (TER) Form 4 filed by one or multiple reporting persons?

The document indicates that the Form 4 was filed by one reporting person, not by a group.

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Accepted by SEC EDGAR 12/15/2025 - 12:03 PM Learn about SEC filing dates

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
Estimated average burden
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)
12/12/2025

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	12/12/2025		S(1)		1,108	D	$201.31	93,408.995	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	12/15/2025
	** 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.