Teradyne (NASDAQ: TER) director adds 4 deferred stock units via dividends

Rhea-AI Filing Summary

Teradyne, Inc. director Peter Herweck reported a small, routine equity compensation adjustment. On the reported date, he was credited with 4 deferred stock units (DSUs) tied to dividends on existing DSUs, rather than receiving cash.

Following this transaction, Herweck holds 16,138 shares/units of Teradyne common stock in total. The DSUs are designed to be settled one-for-one in common stock, generally 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 null

Type	Security	Shares	Price	Value
Other	Common Stock	4	$0.00	--

Holdings After Transaction: Common Stock — 16,138 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

DSUs credited: 4 units Holdings after transaction: 16,138 shares/units Transaction code: J +1 more

4 metrics

DSUs credited 4 units Dividend-equivalent deferred stock units credited to director

Holdings after transaction 16,138 shares/units Total Teradyne common stock and DSUs after Form 4 event

Transaction code J Other acquisition or disposition of common stock

Transaction date 2026-06-12 Date DSUs were credited to the director

Key Terms

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

4 terms

deferred stock units financial

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

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

"dividends paid on DSUs in the form of additional DSUs in lieu of cash"

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.

Exchange Act Rule 16b-3(d) regulatory

"Such acquisition is exempt under Exchange Act Rule l 6b-3( d)."

non-employee director financial

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

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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)
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)		4(1)	A	$0(1)	16,138	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 l 6b-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)

FAQ

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

Peter Herweck reported receiving 4 deferred stock units (DSUs) tied to dividends on existing DSUs. These units are issued instead of cash dividends and represent a routine, compensation-related adjustment for his non-employee director service.

How many Teradyne (TER) shares or units does Peter Herweck hold after this transaction?

After the reported transaction, Peter Herweck holds a total of 16,138 shares or equivalent DSUs of Teradyne common stock. This figure reflects his direct holdings following the crediting of 4 new DSUs linked to dividend reinvestment.

What are deferred stock units (DSUs) in the context of Teradyne (TER)?

Deferred stock units, or DSUs, are share-based awards that track Teradyne’s common stock and are typically settled in shares at a later date. For this director, DSUs are generally settled one-for-one in common stock after he stops serving as a non-employee director.

Why did Teradyne (TER) issue DSUs instead of cash dividends to the director?

The director elected to receive dividends on his existing DSUs in the form of additional DSUs instead of cash. This election converts dividend payments into more DSUs, increasing his deferred equity position rather than providing immediate cash income.

What does transaction code "J" mean in this Teradyne (TER) Form 4 filing?

Transaction code "J" indicates an "other acquisition or disposition" type event. Here, it covers the issuance of 4 DSUs as dividend equivalents, which is exempt under Exchange Act Rule 16b-3(d) and is not an open-market stock purchase or sale.

When will Peter Herweck’s Teradyne (TER) DSUs typically be settled into common stock?

According to the disclosure, the DSUs are expected to be settled one-for-one in Teradyne common stock generally within ninety days after Peter Herweck ceases serving as a non-employee director. Until then, they remain as deferred stock units.