Teradyne director defers pay into stock units

TERADYNE, INC director Paul J. Tufano increased his equity-based holdings through a compensation deferral.

Rhea-AI Filing Summary

TERADYNE, INC director Paul J. Tufano increased his equity-based holdings through a compensation deferral. On this Form 4, he acquired 116 shares of Common Stock-equivalent deferred stock units at no cash cost, bringing his directly held total to 65,848 shares. The units represent quarterly cash fees deferred into stock-based compensation.

Insider Trade Summary

Grant/Award: 116 shares

Grant/Award 1 txn

Insider TUFANO PAUL J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	116	$0.00	$0.00

Holdings After Transaction: Common Stock — 65,848 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: 116 shares Price per share: $0.00 per share Total shares after transaction: 65,848 shares +1 more

4 metrics

Shares acquired 116 shares Grant/award acquisition of Common Stock-equivalent units on June 25, 2026

Price per share $0.00 per share Compensation grant, not an open-market purchase

Total shares after transaction 65,848 shares Direct Teradyne Common Stock holdings following the DSU grant

Quarterly compensation form Deferred into DSUs Quarterly cash director fees converted into deferred stock units

Key Terms

deferred stock units, DSUs, quarterly cash compensation, non-employee director

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.

DSUs financial

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

DSUs, or Deferred Share Units, are a form of long-term pay where employees or directors receive a promise of company shares or cash at a later date instead of immediate salary. Think of them as an IOU for future stock that vests over time and converts into actual shares or cash, so they matter to investors because they can increase the number of outstanding shares (dilution) and reveal how management’s pay is tied to company performance.

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."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did TER director Paul J. Tufano report?

Paul J. Tufano reported acquiring 116 Common Stock-equivalent shares as a compensation grant. The transaction reflects a deferral of his quarterly cash director fees into deferred stock units rather than an open-market purchase, increasing his directly held position to 65,848 shares.

How many TER shares does Paul J. Tufano hold after this Form 4?

After this transaction, Paul J. Tufano directly holds 65,848 shares of Teradyne Common Stock. The increase comes from 116 deferred stock units issued in lieu of cash compensation, which will convert into shares when he is no longer a non-employee director.

Was Paul J. Tufano’s TER transaction an open-market stock purchase?

No, the filing shows a grant-type acquisition at a price of $0.00 per share. The 116 units represent deferred stock units issued from his quarterly cash director compensation, not an open-market purchase of Teradyne shares on a stock exchange.

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

Deferred stock units are share-equivalent units issued instead of cash compensation. For Paul J. Tufano, the number of DSUs is based on Teradyne’s closing stock price on the issuance date and will be settled one-for-one in Common Stock when he leaves the board.

When will Paul J. Tufano’s TER deferred stock units be settled?

The deferred stock units will generally be settled within ninety days after he no longer serves as a non-employee director. At that point, each DSU converts one-for-one into Teradyne Common Stock, turning the deferred compensation into actual shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/29/2026 - 05:18 PM EDT 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^*

TUFANO PAUL J

(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		116(1)	A	$0(1)	65,848	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)