Exponent (EXPO) director exercises 2,009 RSUs into 62,940-share stake

Rhea-AI Filing Summary

Exponent Inc. director Paul R. Johnston exercised vested Restricted Stock Units into common stock in a routine compensation-related transaction. On June 3, 2026, 2,009 RSUs granted on June 5, 2025 converted into 2,009 shares of common stock on a 1-for-1 basis at no stated price.

Following the transaction, Johnston directly owns 62,940 shares of Exponent common stock. The filing shows an option/RSU exercise and conversion, with no open-market purchases or sales and no remaining RSU balance from this specific award.

Insider Trade Summary

2,009 shares exercised/converted

Mixed 2 txns

Insider JOHNSTON PAUL R

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	2,009	$0.00	--
Exercise	Common Stock	2,009	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 62,940 shares (Direct, null)

Footnotes (1)

1. Reflects the conversion of shares of vested Restricted Stock Units granted on June 5, 2025 into shares of Common Stock on a 1:1 basis. Not applicable. 1-for-1.

Key Figures

RSUs converted: 2,009 shares Post-transaction holdings: 62,940 shares RSU grant date: June 5, 2025 +1 more

4 metrics

RSUs converted 2,009 shares Vested Restricted Stock Units converted into common stock on June 3, 2026

Post-transaction holdings 62,940 shares Common stock directly owned by Paul R. Johnston after the Form 4 transactions

RSU grant date June 5, 2025 Original grant date of the Restricted Stock Units that vested and converted

Conversion ratio 1-for-1 Each vested RSU converted into one share of Exponent common stock

Key Terms

Restricted Stock Units, derivative security, 1-for-1

3 terms

Restricted Stock Units financial

"Reflects the conversion of shares of vested Restricted Stock Units granted on June 5, 2025 into shares of Common Stock on a 1:1 basis."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

1-for-1 financial

"1-for-1."

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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).

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^*

JOHNSTON PAUL R

(Last) (First) (Middle)

149 COMMONWEALTH DRIVE

(Street)

MENLO PARK CALIFORNIA 94025

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
EXPONENT INC [ EXPO ]

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)
06/03/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/03/2026		M(1)		2,009	A	(2)	62,940	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(3)	06/03/2026		M(1)			2,009	06/03/2026	06/03/2026	Common Stock	2,009	(2)	0	D

Explanation of Responses:

1. Reflects the conversion of shares of vested Restricted Stock Units granted on June 5, 2025 into shares of Common Stock on a 1:1 basis.

2. Not applicable.

3. 1-for-1.

	By: Wendy Whitehouse For: Paul R. Johnston	06/04/2026
	** 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)

FAQ

What insider transaction did Exponent (EXPO) director Paul R. Johnston report?

Paul R. Johnston reported exercising 2,009 vested Restricted Stock Units into common stock. The RSUs converted on a 1-for-1 basis into 2,009 Exponent shares as part of equity compensation, not an open-market purchase or sale.

How many Exponent (EXPO) shares does Paul R. Johnston hold after this Form 4?

After the RSU conversion, Paul R. Johnston directly holds 62,940 shares of Exponent common stock. This reflects adding 2,009 shares from vested Restricted Stock Units, with no sales reported in this Form 4 filing.

Were any Exponent (EXPO) shares sold in Paul R. Johnston’s latest Form 4?

No shares were sold in this Form 4. The filing shows only the conversion of 2,009 vested RSUs into 2,009 common shares, a non-cash equity compensation event with no open-market sale transactions reported.

What does the 1-for-1 RSU conversion mean for Exponent (EXPO) stock?

The 1-for-1 RSU conversion means each of the 2,009 vested Restricted Stock Units became one share of Exponent common stock. This is standard for RSU awards and reflects routine equity compensation vesting for a company director.

When were the Exponent (EXPO) RSUs that Johnston exercised originally granted?

The vested Restricted Stock Units were originally granted on June 5, 2025. They converted into 2,009 Exponent common shares on June 3, 2026, as disclosed in the Form 4 footnotes describing the 1-for-1 RSU-to-share conversion.