Teradyne (TER) Product Test president has 345 shares withheld to cover RSU taxes

Rhea-AI Filing Summary

Teradyne, Inc. officer Mills Regan, President of Product Test, reported a routine share withholding related to equity compensation. On February 2, 2026, 345 shares of common stock were withheld at $249.53 per share to cover tax obligations from restricted stock units that vested on January 31 and February 1, 2026. After this transaction, Regan directly beneficially owned 11,673.3452 shares of Teradyne common stock.

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

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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).

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^*

Mills Regan

(Last) (First) (Middle)

C/O 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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Product Test

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

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	02/02/2026		F		345(1)	D	$249.53	11,673.3452	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. Shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units on January 31, 2026 and February 1, 2026.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	02/04/2026
	** 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 transaction did Teradyne (TER) report for Mills Regan?

Teradyne reported that officer Mills Regan had 345 shares of common stock withheld on February 2, 2026. These shares were retained by the company to satisfy tax withholding obligations tied to previously granted restricted stock units.

Why were 345 Teradyne (TER) shares withheld from Mills Regan?

The 345 shares were withheld by Teradyne to cover tax withholding obligations for restricted stock units that vested on January 31, 2026 and February 1, 2026. This is a standard mechanism for handling taxes on equity awards.

What price was used for the Teradyne (TER) share withholding for Mills Regan?

The Form 4 shows the 345 withheld shares valued at $249.53 per share. This price is used to determine the value of the shares applied toward covering the reporting person’s tax obligations from the vesting restricted stock units.

How many Teradyne (TER) shares does Mills Regan own after this transaction?

Following the February 2, 2026 withholding, Mills Regan beneficially owned 11,673.3452 shares of Teradyne common stock. The filing classifies this ownership as direct, meaning the shares are held in Regan’s own name rather than through another entity.

What does transaction code "F" mean in the Teradyne (TER) Form 4 for Mills Regan?

In this filing, transaction code "F" indicates shares were withheld by the issuer to satisfy tax withholding obligations. It reflects a tax-related share retention by Teradyne rather than an open-market purchase or sale by Mills Regan.

What role does Mills Regan hold at Teradyne (TER) in this Form 4?

The Form 4 lists Mills Regan as an officer of Teradyne with the title President, Product Test. The filing confirms Regan is not a director or 10% owner, and the reported transaction relates to common stock compensation.