[144] EXPONENT INC SEC Filing

Rhea-AI Filing Summary

Form 144 filed for EXPO reports a proposed sale tied to an option exercise and recent 10b5-1 plan sales. The filer exercised 4,905 common shares on 09/15/2025, paid in cash, with an aggregate market value reported as $343,595.25. The issuer's shares outstanding are listed as 50,501,135, and the proposed sale is to occur on 09/15/2025 through Morgan Stanley Smith Barney LLC on NASDAQ. The filing also discloses two 10b5-1 sales by Catherine Ford Corrigan on 08/14/2025 totaling 4,896 shares with combined gross proceeds of $348,042.61. The notice includes the standard attestation regarding material nonpublic information.

Positive

• Clear disclosure of option exercise date, number of shares (4,905), and aggregate market value ($343,595.25)
• Use of 10b5-1 plan for prior August 14, 2025 sales, indicating prearranged, rule-compliant insider selling
• Broker identified (Morgan Stanley Smith Barney LLC) and exchange specified (NASDAQ), improving transparency

Negative

• Insider selling of common shares (total recent activity ~9,801 shares including exercise and prior 10b5-1 sales) could be perceived negatively by some investors
• No contextual information on the purpose of the sales (e.g., diversification, tax obligations), limiting interpretability

Insights

Securities Analyst

TL;DR: Insider exercised options and plans to sell ~4,905 shares; prior 10b5-1 sales occurred in August, indicating prearranged dispositions.

The filing shows a routine option exercise converted to common stock with an immediate proposed sale. The size—4,905 shares representing a small fraction of 50.5 million outstanding—suggests limited dilution or market impact. Prior 10b5-1 transactions on 08/14/2025 totaling 4,896 shares generated roughly $348k, which indicates consistent, pre-planned selling activity rather than opportunistic block sales. For trading-volume impact, these amounts are modest unless EXPO has very low daily liquidity.

Corporate Governance Expert

TL;DR: The disclosure follows Rule 144 and 10b5-1 protocols; attestation implies the insider affirms no undisclosed material information.

The notice contains the required Rule 144 details: acquisition date by exercise, payment in cash, broker identification, and attestation about material information. Use of a 10b5-1 plan for prior sales demonstrates adherence to pre-established trading instructions, which supports best-practice governance for insider dispositions. No departures from standard disclosure requirements are evident in the provided content.

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	4905	343595.25	50501135	09/15/2025	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	09/15/2025	Exercise of Stock Options	Issuer			4905	09/15/2025	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 FORD CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	08/14/2025	3226	228835.34
10b5-1 Sales for CATHERINE FORD CORRIGAN 149 COMMONWEALTH DRIVE MENLO PARK CA 94025	Common	08/14/2025	1670	119207.27

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 did EXPO report in this Form 144?

The filer reported an option exercise resulting in 4,905 common shares to be sold on 09/15/2025 with an aggregate market value of $343,595.25.

Who is the broker and where will EXPO shares be sold?

The broker is Morgan Stanley Smith Barney LLC, and the securities are to be sold on NASDAQ.

Were there recent insider sales for EXPO before this filing?

Yes. Two 10b5-1 sales by Catherine Ford Corrigan on 08/14/2025 sold 3,226 and 1,670 shares respectively, totaling 4,896 shares and gross proceeds of $348,042.61.

How large is the potential sale relative to outstanding shares?

The proposed 4,905-share sale is small relative to the reported 50,501,135 shares outstanding.

Does the filing confirm the insider has material nonpublic information?

By signing, the person represents they do not know any material adverse information about the issuer that has not been publicly disclosed.