Teradyne director granted 668 RSUs

Henry Andrew Chisholm reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Henry Andrew Chisholm reported acquisition or exercise transactions in this Form 4 filing.

Teradyne, Inc. director Henry Andrew Chisholm received a grant of 668 restricted stock units (RSUs), each representing one share of common stock. These time-based RSUs vest in full on the earlier of May 8, 2027 or the company’s 2027 annual shareholder meeting. Following this grant, he holds 2,875 shares directly.

Insider Trade Summary

Grant/Award: 668 shares

Grant/Award 1 txn

Insider Henry Andrew Chisholm

Role Director

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

Holdings After Transaction: Common Stock — 2,875 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

RSU grant size: 668 RSUs Grant price: $0.0000 per share Post-grant holdings: 2,875 shares +1 more

4 metrics

RSU grant size 668 RSUs Restricted stock units granted on May 8, 2026

Grant price $0.0000 per share Equity award, no cash paid by director

Post-grant holdings 2,875 shares Total common shares held directly after grant

Vesting date May 8, 2027 RSUs vest on this date or 2027 annual meeting, whichever is earlier

Key Terms

restricted stock units ("RSUs"), 2006 Equity and Cash Compensation Incentive Plan, time-based, vest

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

"RSUs 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."

vest 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."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

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

What did Teradyne (TER) director Henry Andrew Chisholm report on this Form 4?

Henry Andrew Chisholm reported receiving 668 restricted stock units in Teradyne common stock. The award was granted at no cash cost and increased his direct holdings to 2,875 shares following the transaction, according to the Form 4 disclosure.

How many Teradyne (TER) RSUs were granted to Henry Andrew Chisholm?

He was granted 668 restricted stock units of Teradyne common stock. Each RSU represents the right to receive one share, providing equity-based compensation that aligns the director’s interests with shareholders over the vesting period described in the award terms.

When do Henry Andrew Chisholm’s Teradyne (TER) RSUs vest?

The RSUs 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 encourages longer-term alignment between the director and shareholders through continued board service.

What is Henry Andrew Chisholm’s Teradyne (TER) share ownership after this grant?

After the RSU grant, Henry Andrew Chisholm directly holds 2,875 shares of Teradyne common stock. This figure reflects his position immediately following the award and excludes any additional future grants or transactions not covered in this specific Form 4.

Under which plan were the Teradyne (TER) RSUs granted to Henry Andrew Chisholm?

The RSUs were granted under Teradyne’s 2006 Equity and Cash Compensation Incentive Plan. This plan allows the company to provide directors with stock-based awards, supporting retention and aligning compensation with the company’s long-term performance and shareholder interests.

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

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

Henry Andrew Chisholm

(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)
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	2,875	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)