Insider Catherine Corrigan plans EXPO (NASDAQ: EXPO) stock sale under Rule 144

Rhea-AI Filing Summary

Exponent Inc. insider Catherine Corrigan has filed a Form 144 notice to sell shares of EXPO common stock. The filing covers a planned sale of 3,920 common shares through Morgan Stanley Smith Barney LLC on or about 02/17/2026, with an aggregate market value of $261,816.80. The shares were acquired the same day by exercising stock options for cash.

The notice also reports prior Rule 10b5-1 plan sales over the past three months. These include 1,663 common shares sold on 01/15/2026 for gross proceeds of $120,593.78 and 3,225 common shares sold on 12/15/2025 for $240,171.23. Shares outstanding were 49,887,226 at the time referenced, providing context for the size of these trades.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3920	261816.80	49887226	02/17/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/17/2026	Exercise of Stock Options	Issuer			3920	02/17/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	01/15/2026	1663	120593.78
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	12/15/2025	3225	240171.23

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the EXPO Form 144 filing by Catherine Corrigan disclose?

The filing discloses a planned sale of Exponent (EXPO) common stock by insider Catherine Corrigan. It details shares to be sold, market value, acquisition via option exercise, and recent 10b5-1 plan sales over the prior three months.

How many EXPO shares are planned for sale in this Form 144?

The notice covers a planned sale of 3,920 EXPO common shares. These shares were acquired by exercising stock options for cash and are to be sold through Morgan Stanley Smith Barney LLC around 02/17/2026, with an aggregate market value of $261,816.80.

What recent EXPO stock sales under Rule 10b5-1 are reported?

The filing lists two recent 10b5-1 plan sales for Catherine Corrigan: 1,663 common shares sold on 01/15/2026 for $120,593.78 and 3,225 shares sold on 12/15/2025 for $240,171.23, showing prior trading activity.

How were the EXPO shares in the planned sale acquired?

The 3,920 Exponent (EXPO) shares covered by the planned sale were acquired on 02/17/2026 through the exercise of stock options. The filing specifies that the option exercise was paid in cash, and the issuer was the source of the shares.

What is the context of EXPO shares outstanding in this Form 144?

The Form 144 notes that 49,887,226 EXPO common shares were outstanding at the referenced time. This provides context for evaluating the relative size of the planned 3,920-share sale and the prior 10b5-1 transactions disclosed in the filing.

Which broker is handling the planned EXPO share sale?

The planned sale of Exponent (EXPO) common stock will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services. The firm’s listed address is 1 New York Plaza, 8th Floor, New York, NY 10004, and it will handle the Rule 144 transaction.