Teradyne (TER) director defers cash fees into 92 stock units

Rhea-AI Filing Summary

Teradyne, Inc. director Peter Herweck acquired 92 shares of Common Stock through a compensation-related award. The transaction reflects his deferral of quarterly cash fees into deferred stock units, which convert one-for-one into Common Stock. Following this grant, he directly holds 15,466 shares. The deferred stock units are generally settled within ninety days after he no longer serves as a non-employee director.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Herweck Peter

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	92	$0.00	--

Holdings After Transaction: Common Stock — 15,466 shares (Direct)

Footnotes (1)

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Key Figures

Shares granted: 92 shares Post-transaction holdings: 15,466 shares Transaction code: A +1 more

4 metrics

Shares granted 92 shares Deferred stock unit grant on March 26, 2026

Post-transaction holdings 15,466 shares Common Stock held directly after grant

Transaction code A Grant, award, or other acquisition of Common Stock

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.

Form 4 Insider Transactions: What Each Field Means →

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)
03/26/2026

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	03/26/2026		A		92(1)	A	$0(1)	15,466	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	03/30/2026
	** 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)

FAQ

What did Teradyne (TER) director Peter Herweck report in this Form 4?

Peter Herweck reported receiving 92 shares of Teradyne Common Stock through a compensation-related award. These shares came from deferring his quarterly cash fees into deferred stock units, increasing his direct holdings to 15,466 shares after the transaction.

Is the Teradyne (TER) Form 4 transaction an open-market purchase or sale?

The transaction is not an open-market trade; it is a grant classified as a compensation-related acquisition. Herweck deferred his quarterly cash compensation into deferred stock units that convert into Common Stock, rather than buying or selling shares in the market.

How many Teradyne (TER) shares does Peter Herweck hold after this grant?

After the grant, Peter Herweck directly holds 15,466 shares of Teradyne Common Stock. This total includes the 92 shares received through converting deferred stock units that arose from deferring his quarterly cash compensation as a non-employee director.

What are deferred stock units (DSUs) in the Teradyne (TER) Form 4 filing?

Deferred stock units are bookkeeping entries representing the right to receive Teradyne Common Stock later. In this filing, DSUs result from deferring quarterly cash director fees and are settled one-for-one in Common Stock, generally within ninety days after the director stops serving.

When will the deferred stock units for Teradyne (TER) director Peter Herweck be settled?

The deferred stock units are generally settled within ninety days after Peter Herweck no longer serves as a non-employee director. At settlement, each unit converts into one share of Teradyne Common Stock, turning his deferred compensation into actual share ownership.