Catherine Corrigan - 15 Jan 2026 Form 4 Insider Report for EXPONENT INC (EXPO)

Signature
By: Wendy Whitehouse For: Catherine Corrigan
Issuer symbol
EXPO
Transactions as of
15 Jan 2026
Net transactions value
-$51,455
Form type
4
Filing time
20 Jan 2026, 20:24:14 UTC
Previous filing
17 Dec 2025
Next filing
18 Feb 2026

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 20 Jan 2026 0001552213

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction EXPO Common Stock Options Exercise $69,139 +2,380 +2.6% $29.05 94,386 15 Jan 2026 Direct
transaction EXPO Common Stock Sale $120,594 -1,663 -1.8% $72.52 92,723 15 Jan 2026 Direct

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 -2,380 -13% 16,658 15 Jan 2026 Common Stock 2,380 $29.05 Direct F1, F2
* 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 The stock option becomes exercisable in four equal annual installments.
F2 Not applicable.