ARDX (NASDAQ: ARDX) affiliate files to sell 51,100 shares; RSUs vested 02/19/2026

Rhea-AI Filing Summary

ARDX insider filing notifies a proposed resale of 51,100 shares of common stock through Morgan Stanley Smith Barney LLC, dated 02/20/2026. The filing also lists 108,840 shares issued on 02/19/2026 upon vesting of restricted stock units for services rendered. The filing records a prior sale by Michael Raab of 46,887 shares on 11/21/2025 for $259,608.63.

Insights

Securities Compliance Analyst

Routine Form 144 sale notice by an affiliate; includes RSU vesting and a recent prior sale.

The filing lists a proposed resale of 51,100 common shares via Morgan Stanley Smith Barney LLC with an entry date of 02/20/2026. It separately records the vesting of 108,840 restricted stock units on 02/19/2026 described as issued for services rendered.

The excerpt shows a prior sale by Michael Raab of 46,887 shares on 11/21/2025 for $259,608.63. Filing-level qualifiers such as resale method, holder status, or proceeds treatment are limited to the lines shown; timing and placement depend on broker execution and any required regulatory clearances.

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

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 Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza, 8th Floor New York NY 10004	51100	292803.00	245247427	02/20/2026	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 Stock	02/19/2026	Vesting of restricted stock units	Issuer			108840	02/19/2026	Services Rendered

* 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
Michael Raab 400 Fifth Avenue, Suite 210 Waltham MA 02451	Common Stock	11/21/2025	46887	259608.63

144: Remarks and Signature

Remarks

Date of Notice

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 ARDX Form 144 disclose about shares to be sold?

It lists a proposed resale of 51,100 common shares via Morgan Stanley Smith Barney LLC dated 02/20/2026. The form indicates the broker and the filing date but does not specify sale price in the provided excerpt.

Did ARDX record any restricted stock unit vesting in this filing?

Yes; the filing records vesting of 108,840 restricted stock units on 02/19/2026 described as issued for services rendered. The entry ties the shares to RSU vesting rather than an open-market purchase.

Who sold shares previously according to the Form 144 excerpt?

The excerpt shows Michael Raab sold 46,887 common shares on 11/21/2025 for $259,608.63. This prior sale is listed under securities sold during the past three months.

Does the filing state how proceeds will be used or who receives them?

The provided lines do not state proceeds allocation. The filing identifies the broker and sale quantities but does not specify whether proceeds go to the issuer or selling holders in the excerpt provided.

Are the RSUs listed in the Form 144 being sold or newly issued?

The RSUs are shown as vested on 02/19/2026 for services rendered with a listed share count of 108,840, indicating issuance upon vesting rather than an explicit resale action in the excerpt.