Teradyne director receives 19 deferred stock units

Teradyne director Paul J. Tufano reported a small, routine adjustment to his equity compensation.

Rhea-AI Filing Summary

Teradyne director Paul J. Tufano reported a small, routine adjustment to his equity compensation. He was credited with 19 deferred stock units (DSUs) as dividend equivalents on existing DSUs, with no cash changing hands. Following this entry, he holds 65,732 shares of common stock directly.

Insights

Equity Compensation Analyst

Routine DSU dividend credit; no buy or sell signal.

This filing shows 19 DSUs credited to director Paul J. Tufano as dividends on previously granted DSUs, in line with his election to receive dividend equivalents in stock units instead of cash. The transaction is coded J, an “other” type.

The footnote explains these DSUs are exempt under Exchange Act Rule 16b-3(d) and will be settled one-for-one in common stock, generally within ninety days after he ceases serving as a non-employee director. The update is administrative and does not reflect an open-market purchase or sale.

Insider Trade Summary

Other: 19 shares

Other 1 txn

Insider TUFANO PAUL J

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock	19	$0.00	$0.00

Holdings After Transaction: Common Stock — 65,732 shares (Direct)

Footnotes (1)

1. F1. Represents deferred stock units ("DSUs") issued to the Reporting Person in accordance with his election to receive dividends paid on DSUs in the form of additional DSUs in lieu of cash. Such acquisition is exempt under Exchange Act Rule 16b-3( d). 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

Deferred stock units credited: 19 DSUs Price per DSU: $0.00 Shares held after transaction: 65,732 shares +1 more

4 metrics

Deferred stock units credited 19 DSUs Dividend equivalents on existing DSUs

Price per DSU $0.00 Recorded transaction price per unit

Shares held after transaction 65,732 shares Common stock directly owned post-transaction

Restructuring shares 19 shares Classified as restructuring in transaction summary

Key Terms

deferred stock units ("DSUs"), Exchange Act Rule 16b-3( d), non-employee director

3 terms

deferred stock units ("DSUs") financial

"Represents deferred stock units ("DSUs") issued to the Reporting Person..."

Exchange Act Rule 16b-3( d) regulatory

"Such acquisition is exempt under Exchange Act Rule 16b-3( d)."

non-employee director financial

"within ninety days of the date as of which a non-employee director no longer serves..."

FAQ

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

What insider transaction did Teradyne (TER) report for Paul J. Tufano?

Teradyne reported that director Paul J. Tufano was credited with 19 deferred stock units (DSUs). These DSUs represent dividend equivalents on existing DSU holdings and are a routine equity compensation adjustment, not an open-market stock purchase or sale.

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

After this transaction, Paul J. Tufano is shown holding 65,732 shares of Teradyne common stock directly. The 19 new deferred stock units are tied to his DSU program and will generally convert into common shares after he no longer serves as a non-employee director.

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

Deferred stock units, or DSUs, are bookkeeping entries representing a right to receive Teradyne common shares later. In this filing, 19 DSUs were issued as dividends on existing DSUs and will generally be settled one-for-one in common stock after board service ends.

Did the Teradyne (TER) director buy or sell stock in this Form 4?

The filing does not show a market buy or sell. Instead, director Paul J. Tufano received 19 additional deferred stock units as dividend equivalents on prior DSUs, at a recorded price of $0.00 per unit, indicating a non-cash compensation-related adjustment only.

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

According to the footnote, Teradyne’s deferred stock units for Paul J. Tufano are generally settled one-for-one in common stock within ninety days after he no longer serves as a non-employee director. Until then, they remain as deferred units tied to his board service.

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

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Accepted by SEC EDGAR 06/16/2026 - 04:59 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)
06/12/2026

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	06/12/2026		J(1)		19(1)	A	$0(1)	65,732	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 deferred stock units ("DSUs") issued to the Reporting Person in accordance with his election to receive dividends paid on DSUs in the form of additional DSUs in lieu of cash. Such acquisition is exempt under Exchange Act Rule 16b-3( d). 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	06/16/2026
	** 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)