TER Insider Trade: Mercedes Johnson Sells 625 Shares via 10b5-1 Plan

Rhea-AI Filing Summary

SEC Form 4 – Teradyne, Inc. (TER)

• Director Mercedes Johnson sold 625 common shares on 08/05/2025 at $106 per share.
• The disposition was made pursuant to a Rule 10b5-1 trading plan adopted 02/03/2025, indicating a pre-scheduled, compliance-driven sale.
• Post-transaction ownership: 11,363 shares held directly; an additional 1,876 shares held indirectly through The Mercedes Johnson Trust.

No derivative securities were reported and no other transactions were disclosed. The 625-share sale represents a small fraction of the director’s total holdings; therefore, the filing appears routine with limited immediate investment significance.

Insights

Securities Analyst

TL;DR: Minor, pre-planned insider sale; neutral signal for TER investors.

The 625-share sale equates to roughly 5% of Ms. Johnson’s direct stake and less than 0.01% of TER’s float. Because the trade was executed under a Rule 10b5-1 plan adopted months earlier, it is unlikely to reflect real-time sentiment about Teradyne’s fundamentals. With total beneficial ownership still over 13 k shares, there is no evidence of broad insider unloading. I view the disclosure as routine compliance rather than a catalyst. Market impact should be negligible unless followed by larger or multiple insider disposals.

Insider Trade Summary

Net Seller: 625 shares ($66,250)

Net Sell 2 txns

Insider JOHNSON MERCEDES

Role Director

Sold 625 shs ($66K)

Type	Security	Shares	Price	Value
Sale	Common Stock	625	$106.00	$66K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 11,363 shares (Direct); Common Stock — 1,876 shares (Indirect, By Trust)

Footnotes (1)

1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 3, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. Shares held by The Mercedes Johnson Trust UAD 07/23/04 (the "Trust"), of which the Reporting Person is the trustee and sole beneficiary.

Form 4 Insider Transactions: What Each Field Means →

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^*

JOHNSON MERCEDES

(Last) (First) (Middle)

C/O TERADYNE, INC.

600 RIVERPARK DRIVE

(Street)

NORTH READING MA 01864

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
08/05/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	08/05/2025		S(1)		625	D	$106	11,363	D
Common Stock								1,876	I	By 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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 3, 2025 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-Fact	08/07/2025
	** 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.

FAQ

How many Teradyne (TER) shares did Director Mercedes Johnson sell?

She sold 625 shares of common stock.

What was the price per share in the 08/05/2025 insider sale?

The shares were sold at $106 each.

How many shares does Mercedes Johnson own after the transaction?

She directly owns 11,363 shares and indirectly holds 1,876 shares via a trust.

Was this Teradyne insider trade conducted under a Rule 10b5-1 plan?

Yes. The Form 4 states the sale was made under a Rule 10b5-1 plan adopted 02/03/2025.

Does this filing involve any derivative securities?

No. The Form 4 reports no derivative securities acquired or disposed.