Catherine Corrigan reports sale of 3,912 EXPO shares

Catherine Corrigan filed a Form 144 reporting a proposed sale of 3,912 shares of Common Stock via the exercise of stock options on 03/16/2026 for cash.

Rhea-AI Filing Summary

Catherine Corrigan filed a Form 144 reporting a proposed sale of 3,912 shares of Common Stock via the exercise of stock options on 03/16/2026 for cash. The broker listed is Morgan Stanley Smith Barney LLC.

Prior 10b5-1 sales shown in the excerpt include 3,920 shares sold on 02/17/2026 for $263,239.62 and 1,663 shares sold on 01/15/2026 for $120,593.78.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Catherine Corrigan report in the Form 144 for EXPO?

Corrigan reported a proposed sale of 3,912 shares on 03/16/2026. The filing states the sale arises from an exercise of stock options and lists Morgan Stanley Smith Barney LLC as the broker handling the transaction.

How many shares did Corrigan sell previously under 10b5-1 plans?

The excerpt shows 3,920 shares sold on 02/17/2026 and 1,663 shares sold on 01/15/2026. Reported cash amounts are $263,239.62 and $120,593.78, respectively, as provided in the filing excerpt.

What method is listed for the 03/16/2026 transaction in the filing?

The 03/16/2026 entry is described as an "Exercise of Stock Options" with cash listed as the consideration. The filing identifies the transaction date and the number of shares to be sold as 3,912.

Who is the broker/dealer handling the reported sale for EXPO?

Morgan Stanley Smith Barney LLC is named in the filing as the broker handling the transaction. The broker address and floor information appear in the excerpt alongside the securities and sale details.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/16/2026 - 04:40 PM EDT Learn about SEC filing dates

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	0001552213
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	EXPONENT, INC.
SEC File Number	000-18655
Address of Issuer	149 COMMONWEALTH DRIVE MENLO PARK CALIFORNIA 94025
Phone	6503269400
Name of Person for Whose Account the Securities are To Be Sold	CATHERINE CORRIGAN
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	Director
Relationship to Issuer	Officer

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	3912	263551.44	49254339	03/16/2026	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	03/16/2026	Exercise of Stock Options	Issuer			3912	03/16/2026	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	02/17/2026	3920	263239.62
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	01/15/2026	1663	120593.78

144: Remarks and Signature

Remarks
Date of Notice	03/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/15/2025
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	/s/ Catherine Corrigan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)