Teradyne director gains 63 shares via equity award

TERADYNE, INC director Peter Herweck increased his equity stake through deferred stock compensation.

Rhea-AI Filing Summary

TERADYNE, INC director Peter Herweck increased his equity stake through deferred stock compensation. He acquired 63 shares of Common Stock at a stated price of $0.00 per share as a grant/award tied to his quarterly cash compensation.

Following this award, Herweck directly holds 16,201 shares of Common Stock. According to the disclosure, this represents a deferral of his quarterly cash compensation into deferred stock units, which are calculated using the closing price of the stock on the issuance date and are settled one-for-one in Common Stock after he no longer serves as a non-employee director.

Insider Trade Summary

Grant/Award: 63 shares

Grant/Award 1 txn

Insider Herweck Peter

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	63	$0.00	$0.00

Holdings After Transaction: Common Stock — 16,201 shares (Direct)

Footnotes (1)

1. F1. Represents the Reporting Person's deferral of his quarterly cash compensation into deferred stock units ("DSUs"). The number of DSUs is calculated based on the closing price of the Common Stock on their date of issuance. 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.

Key Figures

Shares acquired: 63 shares Price per share: $0.00 per share Shares owned after: 16,201 shares +2 more

5 metrics

Shares acquired 63 shares Grant/award acquisition of Common Stock

Price per share $0.00 per share Reported transaction price for the award

Shares owned after 16,201 shares Direct Common Stock holdings following transaction

Transaction direction 1 acquisition Form 4 transactionSummary acquireCount

Settlement timing within ninety days DSUs settled after director no longer serves

Key Terms

deferred stock units, quarterly cash compensation, non-employee director, Common Stock

4 terms

deferred stock units financial

"Represents the Reporting Person's deferral of his quarterly cash compensation into deferred stock units ("DSUs")."

Deferred stock units are promises from a company to give an employee shares of stock at a future date, often after certain conditions are met or after leaving the company. They function like a form of delayed compensation, allowing employees to earn shares over time. For investors, they represent potential future ownership in the company, but do not provide immediate voting rights or dividends until the shares are actually received.

quarterly cash compensation financial

"Represents the Reporting Person's deferral of his quarterly cash compensation into deferred stock units ("DSUs")."

non-employee director financial

"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."

Common Stock financial

"The number of DSUs is calculated based on the closing price of the Common Stock on their date of issuance."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

What did TER (Teradyne, Inc) director Peter Herweck report on this Form 4?

Peter Herweck reported receiving 63 shares of Teradyne Common Stock as a grant tied to deferred compensation. This award increased his direct holdings to 16,201 shares, reflecting additional equity-based director compensation rather than an open-market stock purchase.

Was the TER Form 4 transaction an open-market buy or a compensation grant?

The transaction was a compensation-related grant, not an open-market purchase. The filing describes it as a grant or award tied to deferral of quarterly cash compensation into stock units, with a reported transaction price of $0.00 per share for the 63 shares.

How many TER shares does Peter Herweck hold after this Form 4 transaction?

After the reported grant, Peter Herweck directly holds 16,201 shares of Teradyne Common Stock. This total includes the 63 shares acquired through the latest deferred compensation award and represents his direct ownership position as disclosed in the filing.

What are deferred stock units (DSUs) in the TER director compensation context?

Deferred stock units represent deferred quarterly cash compensation converted into stock-based units. For Teradyne directors, DSUs are calculated using the stock’s closing price on the issuance date and are later settled one-for-one in Common Stock after the director ends board service.

Does the TER Form 4 indicate any stock sales by Peter Herweck?

The Form 4 shows no stock sales by Peter Herweck. It reports only an acquisition of 63 shares as a grant or award, with zero reported sell transactions and his direct holdings rising to 16,201 shares after this compensation-related transaction.

When are Teradyne director deferred stock units typically settled into shares?

Teradyne director deferred stock units are generally settled within ninety days after a non-employee director no longer serves in that capacity. At settlement, each deferred stock unit converts one-for-one into shares of Teradyne Common Stock as described in the disclosure.

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Accepted by SEC EDGAR 06/29/2026 - 05:04 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).

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^*

Herweck Peter

(Last) (First) (Middle)

TERADYNE, INC.

600 RIVERPARK DRIVE

(Street)

NORTH READING MASSACHUSETTS 01864

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026

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

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

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

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	06/25/2026		A		63(1)	A	$0(1)	16,201	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. Represents the Reporting Person's deferral of his quarterly cash compensation into deferred stock units ("DSUs"). The number of DSUs is calculated based on the closing price of the Common Stock on their date of issuance. 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.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	06/29/2026
	** 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.
* Form 4: SEC 1474 (03-26)