DUOL affiliate files to sell 820 restricted shares

DUOL affiliate filed a Form 144 reporting an intended sale of 820 shares of restricted Common Stock dated 05/15/2026.

Rhea-AI Filing Summary

DUOL affiliate filed a Form 144 reporting an intended sale of 820 shares of restricted Common Stock dated 05/15/2026. The filing also records prior dispositions by Stephen Chen of 1,901 shares on 02/18/2026 and 896 shares on 02/17/2026 with values shown in the excerpt.

Insights

Securities Compliance Analyst

Form 144 records a proposed affiliate resale of restricted stock plus recent small past sales.

The filing lists an intended sale of 820 restricted shares dated 05/15/2026. It also shows past dispositions by Stephen Chen of 1,901 shares on 02/18/2026 and 896 shares on 02/17/2026 with dollar amounts reported.

These entries are procedural notice of resale by an affiliate under resale rules. The actual timing, method of sale, and whether the issuer or broker will process transactions are not detailed in the provided excerpt.

Key Figures

Intended restricted shares to be sold: 820 shares Disposition by Stephen Chen: 1,901 shares Disposition by Stephen Chen: 896 shares

3 metrics

Intended restricted shares to be sold 820 shares to be sold on <date>05/15/2026</date>

Disposition by Stephen Chen 1,901 shares sold on <date>02/18/2026</date> valued at <money>$215,709.89</money>

Disposition by Stephen Chen 896 shares sold on <date>02/17/2026</date> valued at <money>$98,614.30</money>

Key Terms

Form 144, Restricted Stock, Issuer

3 terms

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.

Restricted Stock financial

"Securities To Be Sold | Common | 05/15/2026 | Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Issuer regulatory

"Securities To Be Sold | Restricted Stock | Issuer"

FAQ

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

What does DUOL's Form 144 report?

It reports an intended sale of 820 restricted shares dated 05/15/2026. The filing also lists prior dispositions by Stephen Chen of 1,901 shares on 02/18/2026 and 896 shares on 02/17/2026 with values shown in the excerpt.

Who is listed as having sold shares in the filing for DUOL?

The excerpt lists Stephen Chen as having sold shares on 02/18/2026 (1,901 shares) and 02/17/2026 (896 shares). The filing also shows an intended sale of 820 restricted shares dated 05/15/2026.

How many restricted shares does the Form 144 say will be sold for DUOL?

The Form 144 excerpt states an intended sale of 820 restricted shares with the transaction date of 05/15/2026. No further sale mechanics or proceeds recipients are provided in the excerpt.

Are dollar values included in DUOL's Form 144 excerpt?

Yes; the excerpt shows dollar figures alongside past dispositions: $215,709.89 for 1,901 shares and $98,614.30 for 896 shares. The association between each value and its date appears in the listed rows.

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

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Accepted by SEC EDGAR 05/15/2026 - 05:28 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	0001869758
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	DUOLINGO, INC.
SEC File Number	001-40653
Address of Issuer	5900 Penn Avenue Pittsburgh PENNSYLVANIA 15206
Phone	(412) 567-6602
Name of Person for Whose Account the Securities are To Be Sold	STEPHEN CHEN
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	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	820	91967.26	40237065	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	Restricted Stock	Issuer			820	05/15/2026	Not Applicable

* 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
Stephen Chen 5900 Penn Avenue Pittsburgh PA 15206	Common	02/18/2026	1901	215709.89
STEPHEN CHEN 5900 Penn Avenue Pittsburgh PA 15206	Common	02/17/2026	896	98614.30

144: Remarks and Signature

Remarks
Date of Notice	05/15/2026
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/ Stephen Chen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)