ARDX (NASDAQ: ARDX) reports 5,355 RSUs vest; insider sales noted

Rhea-AI Filing Summary

ARDX Form 144 filing records vesting-related sale activity. 5,355 restricted stock units vested on 05/19/2026 and are listed as securities to be sold. The filing also shows prior dispositions on 02/20/2026 of 1,786 shares for $10,474.89 and 247 shares for $1,411.31.

Insights

Equity Capital Markets Analyst

Form 144 records routine RSU vesting and small prior disposals, not a corporate finance action.

The filing lists a vesting event of 5,355 RSUs on 05/19/2026 and two prior dispositions on 02/20/2026 totaling 2,033 shares with proceeds shown. These entries describe individual holder transactions rather than an issuer equity raise.

Cash flows appear tied to holder dispositions shown by amounts for the prior sales; further disclosures would be in subsequent Form 4/144 filings if transactions occur.

Key Figures

RSUs vested: 5,355 shares Prior disposition: 1,786 shares Prior disposition: 247 shares

3 metrics

RSUs vested 5,355 shares vesting on <date>05/19/2026</date>

Prior disposition 1,786 shares sold on <date>02/20/2026</date> for <money>$10,474.89</money>

Prior disposition 247 shares sold on <date>02/20/2026</date> for <money>$1,411.31</money>

Key Terms

restricted stock units, Form 144, Securities Sold During The Past 3 Months

3 terms

restricted stock units financial

"Securities To Be Sold Common Stock 05/19/2026 Vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 144 regulatory

"Filer Information | 144: Filer Information"

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.

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months Susan Hohenleitner ... 02/20/2026"

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	2650	16509.50	247029387	05/19/2026	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	05/19/2026	Vesting of restricted stock units	Issuer			5355	05/19/2026	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
Susan Hohenleitner 400 Fifth Avenue, Suite 210 Waltham MA 02451	Common Stock	02/20/2026	1786	10474.89
Susan Hohenleitner 400 Fifth Avenue, Suite 210 Waltham MA 02451	Common Stock	02/20/2026	247	1411.31

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 ARDX's Form 144 report?

It reports a vesting event of restricted stock units and recent small dispositions. The filing lists 5,355 RSUs vesting on 05/19/2026, and prior sales of 1,786 and 247 shares on 02/20/2026 with proceeds shown.

How many shares vested for ARDX and when?

A total of 5,355 restricted stock units vested on 05/19/2026. The filing identifies those vested RSUs as securities to be sold by the holder, listed under the vesting/service-rendered row.

What prior sales are disclosed in the filing?

The filing shows two prior dispositions on 02/20/2026: 1,786 shares for $10,474.89 and 247 shares for $1,411.31. Those amounts are recorded in the past three months sales section.

Does the Form 144 show who will receive proceeds?

Proceeds for the prior sales are shown as dollar amounts; the filing lists the selling individual's address but does not reallocate proceeds to the issuer. The entries identify the transactions as holder dispositions tied to vesting or sale.