STOCK TITAN

Teradyne (NASDAQ: TER) director sells 166 shares in 10b5-1 trade

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Form Type
4

Rhea-AI Filing Summary

Teradyne, Inc. director Mercedes Johnson reported selling 166 shares of common stock on August 3, 2026 at $358.15 per share in an open-market or private transaction under a Rule 10b5-1 trading plan adopted March 4, 2026. She now holds 6,531 shares directly and 1,876 shares indirectly through a trust.

Positive

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Negative

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Insider JOHNSON MERCEDES
Role Director
Sold 166 shs ($59K)
Type Security Shares Price Value
Sale Common Stock F1 166 $358.15 $59K
holding Common Stock F2 -- -- --
Holdings After Transaction: Common Stock — 6,531 shares (Direct); Common Stock — 1,876 shares (Indirect, By Trust)
Footnotes (2)
  1. F1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on March 4, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.
  2. F2. Shares held by The Mercedes Johnson Trust UAD 07/23/04 (the "Trust"), of which the Reporting Person is the trustee and sole beneficiary.
Shares sold 166 shares Common stock sold by Mercedes Johnson on August 3, 2026
Transaction price $358.15 per share Per-share price for the 166 Teradyne common shares sold
Direct holdings after sale 6,531 shares Teradyne common stock held directly by Mercedes Johnson following the reported sale
Indirect holdings via trust 1,876 shares Teradyne common stock held indirectly by The Mercedes Johnson Trust UAD 07/23/04
Net shares sold 166 shares Net sell volume across reported non-derivative transactions
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.
sales plan financial
"The shares were sold pursuant to a sales plan adopted by the Reporting Person"
open market or private transaction financial
"transaction code description: Sale in open market or private transaction"
Trust financial
"Shares held by The Mercedes Johnson Trust UAD 07/23/04"
A trust is a legal setup in which one party (the trustee) holds and manages assets—like cash, stocks or property—on behalf of other people (beneficiaries) according to instructions from the person who created it (the grantor). Think of it as a locked box with a keyholder who must follow written rules; for investors it matters because trusts influence who controls and benefits from assets, affect taxes and succession, and can change how quickly or transparently shares are bought, sold or voted.

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

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FAQ

What insider transaction did Teradyne (TER) director Mercedes Johnson report?

Mercedes Johnson reported selling 166 shares of Teradyne common stock on August 3, 2026 at $358.15 per share in an open-market or private transaction, executed under a pre-arranged Rule 10b5-1 trading plan adopted on March 4, 2026.

How many Teradyne (TER) shares does Mercedes Johnson hold after the reported sale?

After the reported transaction, Mercedes Johnson holds 6,531 shares of Teradyne common stock directly. She also has 1,876 shares held indirectly through The Mercedes Johnson Trust, for which she serves as trustee and sole beneficiary, according to the disclosure footnote.

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

Yes. The disclosure states the 166-share sale was made pursuant to a sales plan adopted on March 4, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act, indicating it was pre-arranged rather than opportunistic.

What price did Mercedes Johnson receive for the Teradyne (TER) shares sold?

The sale involved 166 shares of Teradyne common stock at a price of $358.15 per share. The transaction is characterized as an open-market or private transaction, and this per-share price applies to the entire share block reported in the transaction.

How are Mercedes Johnson’s indirect Teradyne (TER) holdings structured?

The disclosure lists 1,876 shares held indirectly by The Mercedes Johnson Trust UAD 07/23/04. A footnote explains that Johnson is the trustee and sole beneficiary of this trust, so these shares are attributed to her as indirect ownership.
SEC Form 4
FORM 4UNITED 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*
JOHNSON MERCEDES

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/03/2026S(1)166D$358.156,531D
Common Stock1,876IBy Trust(2)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on March 4, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.
2. Shares held by The Mercedes Johnson Trust UAD 07/23/04 (the "Trust"), of which the Reporting Person is the trustee and sole beneficiary.
/s/ Ryan E. Driscoll, Attorney-in-Fact08/04/2026
** Signature of Reporting PersonDate
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)