Exponent insider plans sale of 1,707 shares

Exponent, Inc. (EXPO) reports a planned sale of 1,707 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, related to an exercise of stock options on 08/17/2026.

Rhea-AI Filing Summary

Exponent, Inc. (EXPO) reports a planned sale of 1,707 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, related to an exercise of stock options on 08/17/2026. The filing also lists prior Rule 10b5-1 sales by Catherine Corrigan over the preceding three months.

Those prior transactions involved 1,737 shares on 07/15/2026 for $109,044.69 and 4,119 shares on 06/15/2026 for $235,303.23, all in Exponent common stock.

Key Figures

Planned shares to be sold: 1,707 shares Planned aggregate value: $114,539.70 Prior 10b5-1 sale shares (July): 1,737 shares +3 more

6 metrics

Planned shares to be sold 1,707 shares Common stock tied to an exercise of stock options on 08/17/2026

Planned aggregate value $114,539.70 Value associated with 1,707 EXPO common shares listed for sale

Prior 10b5-1 sale shares (July) 1,737 shares Common stock sold on 07/15/2026 under a 10b5-1 plan

Prior 10b5-1 sale value (July) $109,044.69 Proceeds from EXPO common stock sale on 07/15/2026

Prior 10b5-1 sale shares (June) 4,119 shares Common stock sold on 06/15/2026 under a 10b5-1 plan

Prior 10b5-1 sale value (June) $235,303.23 Proceeds from EXPO common stock sale on 06/15/2026

Key Terms

Form 144, Exercise of Stock Options, 10b5-1 Sales, Executive Financial Services

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

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.

Exercise of Stock Options financial

"Common | 08/17/2026 | Exercise of Stock Options | Issuer"

10b5-1 Sales regulatory

"10b5-1 Sales for CATHERINE CORRIGAN"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

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

What share amount is being registered for potential sale on Form 144 for EXPO?

The Form 144 registers a planned sale of 1,707 shares of EXPO common stock. These shares are tied to an exercise of stock options dated 08/17/2026, to be sold through a brokerage account at Morgan Stanley Smith Barney LLC.

Which broker is handling the planned EXPO Form 144 sale?

The planned EXPO sale is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services. The brokerage office listed is at 1 New York Plaza, 8th Floor, New York, NY 10004, and the security is EXPO common stock traded on NASDAQ.

What recent 10b5-1 sales of EXPO stock did Catherine Corrigan report?

Catherine Corrigan reported Rule 10b5-1 sales of 1,737 EXPO shares on 07/15/2026 for $109,044.69, and 4,119 shares on 06/15/2026 for $235,303.23, all in EXPO common stock from her Menlo Park, California address.

What is the transaction type behind the new EXPO shares listed on Form 144?

The 1,707 EXPO shares on Form 144 are linked to an Exercise of Stock Options. The transaction is dated 08/17/2026 and is described as being settled in cash, with the issuer identified as the source of the option exercise.

On which market is the EXPO stock associated with this Form 144 traded?

The EXPO common stock in this Form 144 is listed as trading on NASDAQ. The filing ties the NASDAQ-listed common shares to activity through Morgan Stanley Smith Barney LLC, including the planned sale of 1,707 shares and prior 10b5-1 sales.

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

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Available on EDGAR 08/17/2026 - 04:36 PM Accepted by SEC EDGAR 08/17/2026 - 04:35 PM 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	1707	114539.70	47546084	08/17/2026	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	08/17/2026	Exercise of Stock Options	Issuer			1707	08/17/2026	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	07/15/2026	1737	109044.69
10b5-1 Sales for CATHERINE CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	06/15/2026	4119	235303.23

144: Remarks and Signature

Remarks
Date of Notice	08/17/2026
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)