Teradyne insider plans $1.7M stock sale

Teradyne, Inc. (TER) reporting person Gregory S. Smith has notified an intention to sell 4,000 shares of common stock through Fidelity Brokerage Services, with an indicated aggregate market value of $1,700,000.00 as of a planned sale date of 08/17/2026.

Rhea-AI Filing Summary

Teradyne, Inc. (TER) reporting person Gregory S. Smith has notified an intention to sell 4,000 shares of common stock through Fidelity Brokerage Services, with an indicated aggregate market value of $1,700,000.00 as of a planned sale date of 08/17/2026. The shares derive from restricted stock vesting received as compensation on 01/27/2026. Smith also reports prior open-market sales of 4,000 shares on 06/15/2026 for $1,692,120.00 and 4,000 shares on 07/15/2026 for $1,425,240.00.

Key Figures

Shares to be sold: 4,000 shares Aggregate market value of planned sale: $1,700,000.00 Shares outstanding context: 156,340,750 shares +4 more

7 metrics

Shares to be sold 4,000 shares Teradyne common stock planned sale reported by Gregory S. Smith

Aggregate market value of planned sale $1,700,000.00 Value associated with 4,000 shares of Teradyne common stock

Shares outstanding context 156,340,750 shares Common shares figure listed alongside the Form 144 sale details

Planned sale date 08/17/2026 Date associated with the 4,000-share planned sale

Sale on 06/15/2026 4,000 shares for $1,692,120.00 Securities sold during the past 3 months

Sale on 07/15/2026 4,000 shares for $1,425,240.00 Securities sold during the past 3 months

Restricted stock vesting date 01/27/2026 Acquisition date of compensation shares to be sold

Key Terms

Restricted Stock Vesting, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

Restricted Stock Vesting financial

"Common | 01/27/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Securities To Be Sold financial

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months financial

"144: Securities Sold During The Past 3 Months"

FAQ

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

What does TER’s Form 144 filing by Gregory S. Smith disclose?

It discloses an intent to sell 4,000 shares of Teradyne common stock, with an indicated aggregate market value of $1,700,000.00, following earlier sales in June and July 2026 totaling 8,000 shares.

How many TER shares does Gregory S. Smith plan to sell under this Form 144?

Gregory S. Smith plans to sell 4,000 shares of Teradyne common stock. These shares are to be sold through Fidelity Brokerage Services LLC and are associated with restricted stock that vested as compensation.

What is the aggregate market value of TER shares planned for sale in this notice?

The filing lists an aggregate market value of $1,700,000.00 for the 4,000 Teradyne shares to be sold. This value reflects the market price reference used in the Form 144 notice at the time of filing.

What prior TER stock sales by Gregory S. Smith are reported in the last three months?

The filing reports two prior sales: 4,000 shares on 06/15/2026 for $1,692,120.00 and 4,000 shares on 07/15/2026 for $1,425,240.00, both involving Teradyne common stock.

What is the source of the TER shares being sold by Gregory S. Smith?

The shares come from restricted stock vesting that occurred on 01/27/2026. The filing specifies the nature of acquisition as compensation, indicating these shares were awarded under a compensation arrangement.

On what date are the new TER share sales expected to occur?

The new sales are associated with a planned date of 08/17/2026. That date is listed along with the 4,000 Teradyne common shares and the aggregate market value used for this Form 144 notice.

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

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Accepted by SEC EDGAR 08/17/2026 - 10:42 AM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001666934
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	TERADYNE, INC
SEC File Number	001-06462
Address of Issuer	600 RIVERPARK DRIVE NORTH READING MASSACHUSETTS 01864
Phone	978-370-2700
Name of Person for Whose Account the Securities are To Be Sold	Smith Gregory Stephen
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	4000	1700000.00	156340750	08/17/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	01/27/2026	Restricted Stock Vesting	Issuer			4000	01/27/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Gregory S. Smith 600 Riverpark Drive North Reading MA 01864	Common	06/15/2026	4000	1692120.00
Gregory S. Smith 600 Riverpark Drive North Reading MA 01864	Common	07/15/2026	4000	1425240.00

144: Remarks and Signature

Remarks
Date of Notice	08/17/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/12/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Gregory S. Smith
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)