EXPO CEO Corrigan reports stock option exercises and share sales

Rhea-AI Filing Summary

Exponent Inc. (EXPO) President & CEO and director Catherine Corrigan reported stock option exercises and related share sales. On 11/17/2025, she exercised non-qualified stock options for 3,225 shares at $25.405 and 2,380 shares at $29.05, converting them into common stock. She then sold 3,225 shares at $70.205 and 1,675 shares at an average price of $70.7387, with the filing noting that one sale was to cover the option exercise price and taxes. After these transactions, she directly owned 84,134 shares of Exponent common stock, and still held options for 19,353 and 19,038 shares that remain outstanding.

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
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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^*

Corrigan Catherine

(Last) (First) (Middle)

149 COMMONWEALTH DRIVE

(Street)

MENLO PARK CA 94025

(City) (State) (Zip)

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
X	Officer (give title below)		Other (specify below)
	President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025

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	11/17/2025		M		3,225	A	$25.405	86,654	D
Common Stock	11/17/2025		S		3,225	D	$70.205	83,429	D
Common Stock	11/17/2025		M		2,380	A	$29.05	85,809	D
Common Stock	11/17/2025		S(1)		1,675	D	$70.7387	84,134	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
Non-Qualified Stock Option (right to buy)	$25.405	11/17/2025		M			3,225	(2)	07/29/2026	Common Stock	3,225	(3)	19,353	D
Non-Qualified Stock Option (right to buy)	$29.05	11/17/2025		M			2,380	(2)	02/16/2027	Common Stock	2,380	(3)	19,038	D

Explanation of Responses:

1. Stock sale was to cover the option exercise price and taxes.

2. The stock option becomes exercisable in four equal annual installments.

3. Not applicable.

	By: Wendy Whitehouse For: Catherine Corrigan	11/18/2025
	** 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).
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FAQ

What insider transaction did Exponent (EXPO) report for its CEO?

Exponent reported that President & CEO Catherine Corrigan exercised non-qualified stock options and sold common shares on 11/17/2025, as disclosed on a Form 4.

How many Exponent (EXPO) stock options did the CEO exercise on 11/17/2025?

Catherine Corrigan exercised options for 3,225 shares at $25.405 and 2,380 shares at $29.05, converting them into Exponent common stock.

How many Exponent (EXPO) shares did the CEO sell and at what prices?

On 11/17/2025, she sold 3,225 shares at $70.205 and 1,675 shares at an average price of $70.7387, according to the Form 4.

Why did the Exponent (EXPO) CEO sell some of the shares obtained from option exercises?

The explanation section states that one of the stock sales was made to cover the option exercise price and taxes.

How many Exponent (EXPO) shares does the CEO own after these transactions?

Following the reported transactions, Catherine Corrigan directly owned 84,134 shares of Exponent common stock.

What Exponent (EXPO) stock options does the CEO still hold after the trades?

After the transactions, she held non-qualified stock options covering 19,353 shares expiring on 07/29/2026 and 19,038 shares expiring on 02/16/2027, which vest in four equal annual installments.