EXPO affiliate files Form 144 to sell 4,194 shares

EXPO affiliate submitted a Form 144 notice to sell 4,194 shares of Common Stock via exercise of stock options on 05/15/2026.

Rhea-AI Filing Summary

EXPO affiliate submitted a Form 144 notice to sell 4,194 shares of Common Stock via exercise of stock options on 05/15/2026. The filing also lists 10b5-1 sales by Catherine Corrigan in the prior three months: 3,909, 3,912, and 3,920 shares with gross proceeds reported.

Insights

Securities Counsel

Routine affiliate notice of option exercise and proposed resale under Form 144.

The filing records an exercise of stock options and a proposed sale of 4,194 shares on 05/15/2026. Form 144 is a regulatory notice required when an affiliate intends to sell restricted or control securities.

Prior 10b5-1 sales by Catherine Corrigan on 02/17/2026, 03/16/2026, and 04/15/2026 are listed with gross proceeds; cash treatment is shown for the exercise. Transaction timing and final sale mechanics depend on market execution and plan terms.

Key Figures

Shares proposed for sale: 4,194 shares 10b5-1 sale (Apr 15, 2026): 3,909 shares Gross proceeds (Apr 15, 2026): $264,625.23 +4 more

7 metrics

Shares proposed for sale 4,194 shares Exercise of stock options on 05/15/2026

10b5-1 sale (Apr 15, 2026) 3,909 shares 10b5-1 sale by Catherine Corrigan on 04/15/2026

Gross proceeds (Apr 15, 2026) $264,625.23 Proceeds reported for 04/15/2026 10b5-1 sale

10b5-1 sale (Mar 16, 2026) 3,912 shares 10b5-1 sale by Catherine Corrigan on 03/16/2026

Gross proceeds (Mar 16, 2026) $264,013.84 Proceeds reported for 03/16/2026 10b5-1 sale

10b5-1 sale (Feb 17, 2026) 3,920 shares 10b5-1 sale by Catherine Corrigan on 02/17/2026

Gross proceeds (Feb 17, 2026) $263,239.62 Proceeds reported for 02/17/2026 10b5-1 sale

Key Terms

Form 144, 10b5-1, Exercise of Stock Options

3 terms

Form 144 regulatory

"Form 144 notice to sell 4,194 shares via exercise of stock options"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 regulatory

"10b5-1 Sales for CATHERINE CORRIGAN listed with dates and share counts"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"Securities To Be Sold | 05/15/2026 | Exercise of Stock Options"

FAQ

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

What does EXPO's Form 144 filing report?

The filing reports a proposed sale of 4,194 shares of Common Stock via an exercise of stock options scheduled for 05/15/2026. It is a regulatory notice of an affiliate sale.

Who conducted recent 10b5-1 sales mentioned in the filing?

The filing lists three 10b5-1 sales by Catherine Corrigan on 02/17/2026, 03/16/2026, and 04/15/2026, each showing share counts and gross proceeds.

How many shares were sold in the prior 10b5-1 transactions?

The prior 10b5-1 transactions show sales of 3,920, 3,912, and 3,909 shares on the listed dates, with associated gross proceeds reported in the filing.

What proceeds are reported for the recent 10b5-1 sales?

The filing shows gross proceeds of $263,239.62, $264,013.84, and $264,625.23 for the three listed 10b5-1 sales by Catherine Corrigan.

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

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Accepted by SEC EDGAR 05/15/2026 - 04:32 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	4194	225091.98	48511629	05/15/2026	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	05/15/2026	Exercise of Stock Options	Issuer			4194	05/15/2026	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	04/15/2026	3909	264625.23
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	03/16/2026	3912	264013.84
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	02/17/2026	3920	263239.62

144: Remarks and Signature

Remarks
Date of Notice	05/15/2026
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)