Teradyne (TER) Director Tufano Reports 357 DSUs, Ownership Now 64,520 Shares

Rhea-AI Filing Summary

Paul J. Tufano, a director of Teradyne, Inc. (TER), reported a non‐derivative acquisition on 09/25/2025. He elected to defer his quarterly cash director compensation into 357 deferred stock units (DSUs) that are converted one‑for‑one into common stock when a director leaves service. The Form 4 shows 64,520 shares beneficially owned by Mr. Tufano following the transaction. The filing was submitted by an attorney‑in‑fact on 09/29/2025.

Positive

• Director aligned with shareholders by deferring cash compensation into deferred stock units (357 DSUs)
• Transparent disclosure of beneficial ownership showing 64,520 shares after the transaction

Negative

• None.

Insights

Financial Analyst

TL;DR: Director converted cash fees into 357 DSUs, modestly increasing equity alignment without changing control or liquidity.

The reported transaction is a routine director compensation deferral into equity rather than a market purchase. Converting cash fees into DSUs is a common mechanism to align directors with shareholder interests; the number reported (357 DSUs) is immaterial relative to the total outstanding shares and does not alter control or capital structure. The Form 4 indicates 64,520 shares beneficially owned after the deferral, providing transparency on current insider holdings.

Corporate Governance Expert

TL;DR: Governance practice shows alignment via compensation deferral; transaction is routine and disclosure is compliant.

Electing DSUs for director cash compensation is a standard governance choice to encourage long‑term alignment. The filing discloses the mechanics: DSUs are settled one‑for‑one into common stock generally within ninety days after the director leaves service. The Form 4 is complete for this event and was signed by an attorney‑in‑fact, meeting procedural requirements.

Insider Trade Summary

Net Buyer: 357 shares

Net Buy 1 txn

Insider TUFANO PAUL J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	357	$0.00	$0.00

Holdings After Transaction: Common Stock — 64,520 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.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 09/29/2025 - 11:35 AM Learn about SEC filing dates

FAQ

What did TER director Paul J. Tufano report on Form 4?

He reported deferring his quarterly cash compensation into 357 deferred stock units (DSUs) on 09/25/2025.

How many shares does Paul J. Tufano beneficially own after the transaction at TER?

The Form 4 reports 64,520 shares beneficially owned following the reported transaction.

When are the DSUs settled into Teradyne (TER) common stock?

The DSUs are settled one‑for‑one in common stock generally within ninety days after the director no longer serves.

Was the Form 4 filing for TER signed by the reporting person?

The Form 4 was executed by an attorney‑in‑fact, Ryan E. Driscoll, and dated 09/29/2025.

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).

1. Name and Address of Reporting Person^*

TUFANO PAUL J

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/25/2025

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	09/25/2025		A		357(1)	A	$0(1)	64,520	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	09/29/2025
	** 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.