Teradyne (NASDAQ: TER) director sells 625 shares under 10b5-1 plan

Q: At what price did Mercedes Johnson sell Teradyne (TER) shares?

She sold 625 Teradyne common shares at an average price of $312.20 per share. This was an open-market transaction dated April 6, 2026, reported on Form 4, and executed pursuant to a pre-arranged Rule 10b5-1 trading plan.

Q: How many Teradyne shares does Mercedes Johnson hold after this sale?

Following the sale, Mercedes Johnson directly holds 6,363 Teradyne common shares. In addition, she indirectly holds 1,876 shares through The Mercedes Johnson Trust, where she is trustee and sole beneficiary, according to the Form 4 disclosure and related footnote.

Q: Was the Teradyne (TER) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the shares were sold under a sales plan adopted on February 3, 2025 , intended to comply with Rule 10b5-1. Such plans pre-arrange trades in advance, providing structure for routine insider transactions over time.

Q: What indirect Teradyne holdings are reported for Mercedes Johnson?

The Form 4 reports 1,876 Teradyne common shares held indirectly by The Mercedes Johnson Trust UAD 07/23/04. A footnote explains she is the trustee and sole beneficiary of this trust, giving her beneficial ownership of those indirectly held shares.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

TERADYNE, INC director Mercedes Johnson reported an open-market sale of 625 shares of common stock at $312.20 per share on April 6, 2026. After the sale, she directly holds 6,363 shares and indirectly holds 1,876 shares through The Mercedes Johnson Trust. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on February 3, 2025.

Insider Trade Summary 10b5-1

Net Seller: 625 shares ($195,125)

Net Sell 2 txns

Insider JOHNSON MERCEDES

Role Director

Sold 625 shs ($195K)

Type	Security	Shares	Price	Value
Sale	Common Stock	625	$312.20	$195K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 6,363 shares (Direct); Common Stock — 1,876 shares (Indirect, By Trust)

Footnotes (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.

Key Figures

Shares sold: 625 shares Sale price: $312.20 per share Direct holdings after sale: 6,363 shares +3 more

6 metrics

Shares sold 625 shares Open-market sale on April 6, 2026

Sale price $312.20 per share Common stock transaction

Direct holdings after sale 6,363 shares Common stock held directly post-transaction

Indirect holdings after sale 1,876 shares Common stock held by The Mercedes Johnson Trust

Plan adoption date February 3, 2025 Rule 10b5-1 sales plan adoption

Transaction date April 6, 2026 Date of reported open-market sale

Key Terms

Rule 10b5-1, open-market sale, sole beneficiary, indirect ownership

4 terms

Rule 10b5-1 regulatory

"intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934"

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""

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.

sole beneficiary financial

"of which the Reporting Person is the trustee and sole beneficiary"

indirect ownership financial

""ownership_type": "indirect", "nature_of_ownership": "By Trust""

Form 4 Insider Transactions: What Each Field Means →

04/07/2026 - 09:59 AM

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).

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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/06/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/06/2026		S⁽¹⁾		625	D	$312.2	6,363	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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	04/07/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did TER director Mercedes Johnson report?

Mercedes Johnson reported an open-market sale of 625 shares of Teradyne common stock. The shares were sold at $312.20 per share on April 6, 2026, as disclosed in a Form 4 insider filing with updated post-transaction share holdings.

At what price did Mercedes Johnson sell Teradyne (TER) shares?

She sold 625 Teradyne common shares at an average price of $312.20 per share. This was an open-market transaction dated April 6, 2026, reported on Form 4, and executed pursuant to a pre-arranged Rule 10b5-1 trading plan.

How many Teradyne shares does Mercedes Johnson hold after this sale?

Following the sale, Mercedes Johnson directly holds 6,363 Teradyne common shares. In addition, she indirectly holds 1,876 shares through The Mercedes Johnson Trust, where she is trustee and sole beneficiary, according to the Form 4 disclosure and related footnote.

Was the Teradyne (TER) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the shares were sold under a sales plan adopted on February 3, 2025, intended to comply with Rule 10b5-1. Such plans pre-arrange trades in advance, providing structure for routine insider transactions over time.

What indirect Teradyne holdings are reported for Mercedes Johnson?

The Form 4 reports 1,876 Teradyne common shares held indirectly by The Mercedes Johnson Trust UAD 07/23/04. A footnote explains she is the trustee and sole beneficiary of this trust, giving her beneficial ownership of those indirectly held shares.