Exponent Inc (EXPO) CEO Corrigan exercises 7,872 stock options

Rhea-AI Filing Summary

Exponent Inc. insider activity: President & CEO and director Catherine Corrigan reported exercising an incentive stock option for 7,872 shares of Exponent common stock on 12/16/2025 at an exercise price of $25.405 per share. After this transaction, she beneficially owns 92,006 shares of common stock directly. The derivative security reported is an incentive stock option covering 7,872 shares of common stock, with the option described as becoming exercisable in four equal annual installments, and 7,872 derivative securities remaining beneficially owned following the reported transaction.

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).

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)
12/16/2025

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	12/16/2025		M		7,872	A	$25.405	92,006	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
Incentive Stock Option (right to buy)	$25.405	12/16/2025		M			7,872	(1)	07/29/2026	Common Stock	7,872	(2)	7,872	D

Explanation of Responses:

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

2. Not applicable.

	By: Wendy Whitehouse For: Catherine Corrigan	12/17/2025
	** 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

What insider transaction did Exponent Inc (EXPO) report?

Exponent Inc reported that President & CEO and director Catherine Corrigan exercised an incentive stock option for 7,872 shares of common stock on 12/16/2025.

At what price were the Exponent (EXPO) stock options exercised?

The incentive stock option was exercised at a price of $25.405 per share for 7,872 shares of Exponent common stock.

How many Exponent (EXPO) shares does Catherine Corrigan own after this transaction?

Following the reported transaction, Catherine Corrigan beneficially owns 92,006 shares of Exponent common stock directly.

What type of derivative security was involved in this Exponent (EXPO) Form 4 filing?

The derivative security reported is an incentive stock option (right to buy) covering 7,872 shares of Exponent common stock with an exercise price of $25.405.

How do the Exponent (EXPO) stock options held by Catherine Corrigan vest?

According to the explanation, the stock option becomes exercisable in four equal annual installments.

What is the role of the reporting person in Exponent Inc (EXPO)?

The reporting person, Catherine Corrigan, is identified as both a director and an officer, serving as President & CEO of Exponent Inc.