TER Form 144 Notice: Insider Seeks to Sell 625 Shares on 10/06/2025

Rhea-AI Filing Summary

Teradyne, Inc. submitted a Form 144 notice for a proposed sale of 625 shares of common stock through Fidelity Brokerage Services LLC with an approximate aggregate market value of $92,437.50, and an intended sale date of 10/06/2025 on NASDAQ. The filing reports total shares outstanding of 159,073,532. The 625 shares were acquired via restricted stock vesting on 05/09/2017 (582 shares) and 05/09/2024 (43 shares); payment was recorded as compensation.

The notice also discloses prior insider sales by Mercedes Johnson of 1,875 shares on 07/30/2025, 625 shares on 08/05/2025, and 625 shares on 09/05/2025, generating gross proceeds of $339,531.25 over the three transactions. The signer certifies no undisclosed material adverse information exists and references rule 10b5-1 procedures if applicable.

Positive

• Filing completed under Rule 144, demonstrating regulatory compliance for proposed insider sale
• Small proposed sale size: 625 shares is 0.0004% of the reported 159,073,532 shares outstanding

Negative

• Recent insider sales totaling 3,125 shares over the past three months, generating $339,531.25
• Potential signaling risk from clustered insider disposals in 07/30/2025–09/05/2025

Insights

Securities Compliance Analyst

TL;DR: This is a routine insider sale notice disclosing a small proposed sale relative to total shares outstanding.

The form documents a proposed sale of 625 shares valued at $92,437.50 and shows prior insider disposals totaling 3,125 shares with gross proceeds of $339,531.25. The shares proposed for sale were acquired by restricted stock vesting on 05/09/2017 and 05/09/2024 with payment classified as compensation.

Compliance risks center on the insider's representation about material nonpublic information and any applicable 10b5-1 trading plans; the filing includes language to that effect. Monitor the actual execution date 10/06/2025 and any subsequent filings that confirm completion or show additional sales.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	625	92437.50	159073532	10/06/2025	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	05/09/2017	Restricted Stock Vesting	Issuer			582	05/09/2017	Compensation
Common	05/09/2024	Restricted Stock Vesting	Issuer			43	05/09/2024	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
Mercedes Johnson 600 Riverpark Drive North Reading MA 01864	Common	07/30/2025	1875	198243.75
Mercedes Johnson 600 Riverpark Drive North Reading MA 01864	Common	08/05/2025	625	66250.00
Mercedes Johnson 600 Riverpark Drive North Reading MA 01864	Common	09/05/2025	625	75037.50

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Teradyne's (TER) Form 144 disclose about the proposed sale?

It discloses a proposed sale of 625 common shares via Fidelity on 10/06/2025 with an aggregate market value of $92,437.50.

How many shares outstanding does Teradyne report on this Form 144?

The filing reports 159,073,532 shares outstanding.

When were the 625 shares being sold originally acquired?

The shares were acquired by restricted stock vesting on 05/09/2017 (582 shares) and 05/09/2024 (43 shares).

Has the insider sold other Teradyne shares recently?

Yes. Mercedes Johnson sold 1,875 shares on 07/30/2025, 625 on 08/05/2025, and 625 on 09/05/2025, totaling 3,125 shares and $339,531.25 in gross proceeds.

Does the filing state whether a 10b5-1 plan is in use?

The form includes the standard statement referencing a written trading plan or instructions under Rule 10b5-1 if relied upon, but no plan adoption date is provided in the filing.