Teradyne director granted 668 RSUs

Sayiner Necip reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Sayiner Necip reported acquisition or exercise transactions in this Form 4 filing.

Teradyne, Inc. director Necip Sayiner received an equity grant of 668 restricted stock units (RSUs), each representing one share of common stock, as compensation. The award was granted at no cash cost and comes under the company’s 2006 Equity and Cash Compensation Incentive Plan.

The RSUs are time-based and will vest in full on the earlier of May 8, 2027 or the date of Teradyne’s 2027 Annual Meeting of Shareholders. Following this grant, Sayiner’s reported direct holdings total 2,800 shares of common stock, reflecting a relatively small, routine compensation-related increase in his stake.

Insider Trade Summary

Grant/Award: 668 shares

Grant/Award 1 txn

Insider Sayiner Necip

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	668	$0.00	$0.00

Holdings After Transaction: Common Stock — 2,800 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2006 Equity and Cash Compensation Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs are time-based, and will vest in full on the earlier of May 8, 2027 or the date of the Issuer's 2027 Annual Meeting of Shareholders.

Key Figures

RSUs granted: 668 units Grant price: $0.0000 per share Holdings after grant: 2,800 shares +1 more

4 metrics

RSUs granted 668 units Restricted stock units awarded on May 8, 2026

Grant price $0.0000 per share Compensation grant, not open-market purchase

Holdings after grant 2,800 shares Total direct common stock holdings following transaction

Vesting date May 8, 2027 Or earlier on 2027 Annual Meeting of Shareholders

Key Terms

restricted stock units ("RSUs"), 2006 Equity and Cash Compensation Incentive Plan, time-based, Annual Meeting of Shareholders

4 terms

restricted stock units ("RSUs") financial

"Represents restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2006 Equity and Cash Compensation Incentive Plan."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

2006 Equity and Cash Compensation Incentive Plan financial

"granted to the Reporting Person under the Issuer's 2006 Equity and Cash Compensation Incentive Plan."

time-based financial

"The RSUs are time-based, and will vest in full on the earlier of May 8, 2027 or the date of the Issuer's 2027 Annual Meeting of Shareholders."

Annual Meeting of Shareholders financial

"vest in full on the earlier of May 8, 2027 or the date of the Issuer's 2027 Annual Meeting of Shareholders."

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

FAQ

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

What did Teradyne (TER) director Necip Sayiner report in this Form 4?

Necip Sayiner reported receiving a grant of 668 restricted stock units in Teradyne. These RSUs were awarded at no cash cost as part of the company’s 2006 Equity and Cash Compensation Incentive Plan and increase his direct holdings to 2,800 shares of common stock.

How many Teradyne (TER) RSUs were granted to Necip Sayiner and at what price?

Necip Sayiner was granted 668 restricted stock units, each tied to one Teradyne common share. The Form 4 shows a transaction price of $0.0000 per share, indicating this is a compensation grant rather than an open-market purchase involving cash outlay.

When do Necip Sayiner’s newly granted Teradyne (TER) RSUs vest?

The 668 Teradyne RSUs granted to Necip Sayiner will vest in full on the earlier of May 8, 2027 or the date of Teradyne’s 2027 Annual Meeting of Shareholders. This time-based schedule links the award to ongoing board service over several years.

What is Necip Sayiner’s Teradyne (TER) share ownership after this RSU grant?

After the grant, Necip Sayiner’s reported direct holdings total 2,800 shares of Teradyne common stock. This figure includes the newly awarded 668 restricted stock units, each representing the right to receive one share once the time-based vesting conditions are met.

Under which plan were Necip Sayiner’s Teradyne (TER) RSUs granted?

The 668 RSUs were granted under Teradyne’s 2006 Equity and Cash Compensation Incentive Plan. This plan provides equity-based awards like restricted stock units to directors and other participants, aligning compensation with company performance and long-term shareholder interests over time.

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

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Accepted by SEC EDGAR 05/12/2026 - 05:12 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^*

Sayiner Necip

(Last) (First) (Middle)

C/O 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)
05/08/2026

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	05/08/2026		A		668(1)	A	$0	2,800	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 restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2006 Equity and Cash Compensation Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs are time-based, and will vest in full on the earlier of May 8, 2027 or the date of the Issuer's 2027 Annual Meeting of Shareholders.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	05/12/2026
	** 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)