Catherine Corrigan - Aug 14, 2025 Form 4 Insider Report for EXPONENT INC (EXPO)

Signature
By: Wendy Whitehouse For: Catherine Corrigan
Stock symbol
EXPO
Transactions as of
Aug 14, 2025
Transactions value $
-$196,947
Form type
4
Date filed
8/15/2025, 05:12 PM
Previous filing
Mar 17, 2025
Next filing
Sep 16, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Corrigan Catherine President & CEO, Director 149 COMMONWEALTH DRIVE, MENLO PARK By: Wendy Whitehouse For: Catherine Corrigan 2025-08-15 0001552213

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction EXPO Common Stock Options Exercise $82K +3.23K +3.97% $25.41 84.6K Aug 14, 2025 Direct
transaction EXPO Common Stock Sale -$229K -3.23K -3.81% $70.93 81.3K Aug 14, 2025 Direct
transaction EXPO Common Stock Options Exercise $69.1K +2.38K +2.93% $29.05 83.7K Aug 14, 2025 Direct
transaction EXPO Common Stock Sale -$119K -1.67K -1.99% $71.38 82.1K Aug 14, 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction EXPO Non-Qualified Stock Option (right to buy) Options Exercise -3.23K -10% 29K Aug 14, 2025 Common Stock 3.23K $25.41 Direct F2, F3
transaction EXPO Non-Qualified Stock Option (right to buy) Options Exercise -2.38K -8.33% 26.2K Aug 14, 2025 Common Stock 2.38K $29.05 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 Stock sale was to cover the option exercise price and taxes.
F2 The stock option becomes exercisable in four equal annual installments.
F3 Not applicable.