Catherine Corrigan - 17 Feb 2026 Form 4 Insider Report for EXPONENT INC (EXPO)

Signature
By: Wendy Whitehouse For: Catherine Corrigan
Issuer symbol
EXPO
Transactions as of
17 Feb 2026
Net transactions value
-$112,144
Form type
4
Filing time
18 Feb 2026, 19:43:21 UTC
Previous filing
20 Jan 2026
Next filing
23 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 18 Feb 2026 0001552213

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction EXPO Common Stock Options Exercise $81,957 +3,226 +3.5% $25.40 95,949 17 Feb 2026 Direct
transaction EXPO Common Stock Sale $148,971 -2,218 -2.3% $67.16 93,731 17 Feb 2026 Direct F1
transaction EXPO Common Stock Options Exercise $69,139 +2,380 +2.5% $29.05 96,111 17 Feb 2026 Direct
transaction EXPO Common Stock Sale $114,269 -1,702 -1.8% $67.14 94,409 17 Feb 2026 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 -3,226 -20% 12,902 17 Feb 2026 Common Stock 3,226 $25.40 Direct F2, F3
transaction EXPO Non-Qualified Stock Option (right to buy) Options Exercise -2,380 -14% 14,278 17 Feb 2026 Common Stock 2,380 $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.