Teradyne (TER) exec Poulin exercises options, sells 1,664 shares under 10b5-1 plan

Q: Were Shannon Poulin’s Teradyne (TER) share sales made under a Rule 10b5-1 plan?

Yes. The filing states the reported transactions were effected under a sales plan adopted on February 19, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act, indicating they were pre-arranged rather than discretionary trades.

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Teradyne, Inc. executive Shannon John Poulin reported a mix of option exercises, tax withholding, and share sales in company stock. On May 21, 2026, he exercised stock options for 2,843 shares of common stock at an exercise price of $82.61 per share, then 1,531 shares were disposed of to cover the option exercise price and related tax-withholding obligations. Also on May 21, 2026, he sold 1,008 shares in open-market transactions at $345.37 per share, followed by an additional sale of 656 shares at $355.00 per share on May 22, 2026. The filing states that the sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 19, 2026, and after these transactions he directly holds approximately 15,722 shares of Teradyne common stock.

Insider Trade Summary 10b5-1

Net Seller: 1,664 shares ($581,013)

Net Sell 5 txns

Insider Poulin Shannon John

Role President, Semiconductor Test

Sold 1,664 shs ($581K)

Type	Security	Shares	Price	Value
Sale	Common Stock	656	$355.00	$233K
Exercise	Stock Option (Right to Buy)	2,843	$0.00	--
Sale	Common Stock	1,008	$345.37	$348K
Exercise	Common Stock	2,843	$82.61	$235K
Tax Withholding	Common Stock	1,531	$345.98	$530K

Holdings After Transaction: Common Stock — 15,721.578 shares (Direct, null); Stock Option (Right to Buy) — 8,532 shares (Direct, null)

Footnotes (1)

The reported transactions were effected pursuant to a sales plan adopted by the Reporting Person on February 19, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. Shares withheld by the Issuer to pay the exercise price of the stock option exercise reported in this Form 4 and to satisfy the Reporting Person's tax withholding obligations in connection with such exercise. This option was granted under the Issuer's 2006 Equity and Cash Compensation Incentive Plan, and vests at the rate of 25% per year beginning on April 1, 2026, the first anniversary of the grant.

Key Figures

Open-market sale 1: 1,008 shares at $345.37 Open-market sale 2: 656 shares at $355.00 Options exercised: 2,843 shares at $82.61 +5 more

8 metrics

Open-market sale 1 1,008 shares at $345.37 Common Stock sale on May 21, 2026

Open-market sale 2 656 shares at $355.00 Common Stock sale on May 22, 2026

Options exercised 2,843 shares at $82.61 Stock option exercise on May 21, 2026

Tax-withholding shares 1,531 shares Shares withheld for exercise price and taxes

Net shares sold 1,664 shares Total common shares sold across two transactions

Post-transaction holdings ≈15,722 shares Direct common stock held after final transaction

10b5-1 plan adoption date February 19, 2026 Date sales plan intended to comply with Rule 10b5-1 was adopted

Option expiration April 1, 2032 Expiration date for the exercised stock option grant

Key Terms

Rule 10b5-1, tax-withholding disposition, Stock Option (Right to Buy), open-market sale, +1 more

5 terms

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.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Stock Option (Right to Buy) financial

"security_title": "Stock Option (Right to Buy)""

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.

Equity and Cash Compensation Incentive Plan financial

"granted under the Issuer's 2006 Equity and Cash Compensation Incentive Plan"

Form 4 Insider Transactions: What Each Field Means →

05/26/2026 - 05:23 PM

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^*

Poulin Shannon John

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President, Semiconductor Test

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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	05/21/2026		S⁽¹⁾		1,008	D	$345.37	15,065.5779	D
Common Stock	05/21/2026		M⁽¹⁾		2,843	A	$82.61	17,908.5779	D
Common Stock	05/21/2026		F⁽²⁾		1,531⁽²⁾	D	$345.98	16,377.5779	D
Common Stock	05/22/2026		S⁽¹⁾		656	D	$355	15,721.5779	D

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)
Stock Option (Right to Buy)	$82.61	05/21/2026		M⁽¹⁾			2,843	⁽³⁾	04/01/2032	Common Stock	2,843	$0	8,532	D

Explanation of Responses:

1. The reported transactions were effected pursuant to a sales plan adopted by the Reporting Person on February 19, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

2. Shares withheld by the Issuer to pay the exercise price of the stock option exercise reported in this Form 4 and to satisfy the Reporting Person's tax withholding obligations in connection with such exercise.

3. This option was granted under the Issuer's 2006 Equity and Cash Compensation Incentive Plan, and vests at the rate of 25% per year beginning on April 1, 2026, the first anniversary of the grant.

	/s/ Ryan E. Driscoll, Attorney-in-Fact	05/26/2026
	** 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 transactions did Teradyne (TER) executive Shannon Poulin report?

Shannon Poulin reported exercising stock options, disposing shares for taxes, and selling shares. He exercised 2,843 options, had 1,531 shares withheld for tax and exercise costs, and sold 1,664 shares in open-market transactions over two days.

How many Teradyne (TER) shares did Shannon Poulin sell and at what prices?

Shannon Poulin sold a total of 1,664 Teradyne common shares. He sold 1,008 shares at $345.37 per share on May 21, 2026, and 656 shares at $355.00 per share on May 22, 2026 in open-market transactions.

What stock options did Shannon Poulin exercise in this Teradyne (TER) Form 4?

He exercised stock options covering 2,843 shares of Teradyne common stock. The options had a conversion or exercise price of $82.61 per share and were granted under Teradyne’s 2006 Equity and Cash Compensation Incentive Plan with vesting beginning on April 1, 2026.

How many Teradyne (TER) shares does Shannon Poulin hold after these transactions?

After the reported option exercises, tax-withholding disposition, and open-market sales, Shannon Poulin directly holds about 15,722 shares of Teradyne common stock. This figure reflects his position immediately following the last transaction disclosed in the Form 4.

What portion of Shannon Poulin’s Teradyne (TER) transactions were for tax withholding?

The filing shows 1,531 Teradyne shares were disposed of as a tax-withholding transaction. These shares were withheld by the company to pay the stock option exercise price and to satisfy Poulin’s related tax obligations rather than representing an open-market sale.