Teradyne (TER) CEO sells 4,000 shares under Rule 10b5-1 stock plan

Rhea-AI Filing Summary

Teradyne, Inc. President and CEO Gregory Stephen Smith reported an open-market sale of 4,000 shares of common stock on July 15, 2026 at $356.31 per share. The transaction was effected under a sales plan adopted on February 12, 2026 intended to comply with Rule 10b5-1. After the sale, he holds 116,495.4075 shares directly, including 25.8346 shares acquired through the Employee Stock Purchase Plan on June 30, 2026.

Insider Trade Summary 10b5-1

Net Seller: 4,000 shares ($1,425,240)

Net Sell 1 txn

Insider Smith Gregory Stephen

Role President and CEO

Sold 4,000 shs ($1.43M)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,000	$356.31	$1.43M

Holdings After Transaction: Common Stock — 116,495.408 shares (Direct)

Footnotes (1)

1. The reported transactions were effected pursuant to a sales plan adopted by the Reporting Person on February 12, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. Includes 25.8346 shares acquired under the Issuer's Employee Stock Purchase Plan on June 30, 2026.

Key Figures

Shares sold: 4,000 shares Sale price: $356.31 per share Shares held after sale: 116,495.4075 shares +2 more

5 metrics

Shares sold 4,000 shares Open-market sale of common stock on July 15, 2026

Sale price $356.31 per share Price for the 4,000 shares of common stock sold

Shares held after sale 116,495.4075 shares Direct Teradyne common stock ownership following the transaction

ESPP shares included 25.8346 shares Shares acquired under Employee Stock Purchase Plan on June 30, 2026

10b5-1 plan adoption date February 12, 2026 Date the Rule 10b5-1 sales plan governing the trades was adopted

Key Terms

Rule 10b5-1, open-market sale, Employee Stock Purchase Plan

3 terms

Rule 10b5-1 regulatory

"intended to comply with Rule 10b5-1 under the Securities Exchange Act"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open-market sale financial

"transaction_action: open-market sale of common stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Employee Stock Purchase Plan financial

"Includes 25.8346 shares acquired under the Issuer's Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/16/2026 - 01:22 PM Accepted by SEC EDGAR 07/16/2026 - 01:22 PM Learn about SEC filing dates

FAQ

What did Teradyne (TER) CEO Gregory Stephen Smith report in this Form 4?

Gregory Stephen Smith reported an open-market sale of 4,000 Teradyne shares on July 15, 2026 at $356.31 per share. The transaction was executed under a Rule 10b5-1 sales plan adopted on February 12, 2026.

At what price did the Teradyne (TER) CEO sell his shares?

The Teradyne CEO sold 4,000 common shares at $356.31 per share on July 15, 2026. This was an open-market sale executed pursuant to a pre-adopted Rule 10b5-1 trading plan.

How many Teradyne (TER) shares does the CEO hold after this sale?

Following the reported transaction, Gregory Stephen Smith holds 116,495.4075 Teradyne common shares directly. This total includes 25.8346 shares previously acquired under Teradyne’s Employee Stock Purchase Plan on June 30, 2026.

Was the Teradyne (TER) CEO’s stock sale made under a Rule 10b5-1 plan?

Yes. The filing states the transactions were effected under a sales plan adopted February 12, 2026, intended to comply with Rule 10b5-1 under the Exchange Act, indicating a pre-arranged trading framework.

What role does Gregory Stephen Smith hold at Teradyne (TER)?

Gregory Stephen Smith is identified as President and CEO of Teradyne, Inc.. His Form 4 filing reports his personal open-market sale of 4,000 shares and his remaining direct holdings after the transaction.

Did the Teradyne (TER) CEO acquire any shares through an employee plan?

Yes. His reported post-transaction holdings include 25.8346 shares acquired under Teradyne’s Employee Stock Purchase Plan on June 30, 2026. These ESPP shares are part of his 116,495.4075 total direct shares after the sale.

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).

X

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^*

Smith Gregory Stephen

(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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/15/2026

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	07/15/2026		S(1)		4,000	D	$356.31	116,495.4075(2)	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. The reported transactions were effected pursuant to a sales plan adopted by the Reporting Person on February 12, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

2. Includes 25.8346 shares acquired under the Issuer's Employee Stock Purchase Plan on June 30, 2026.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	07/16/2026
	** 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)