Form 144: DUOL affiliate lists 1,901 RSUs

DUOL affiliate submitted a Form 144 notice relating to Common stock.

Rhea-AI Filing Summary

DUOL affiliate submitted a Form 144 notice relating to Common stock. The filing lists 1,901 Restricted Stock Units associated with Morgan Stanley Smith Barney LLC and records a prior sale by Stephen Chen of 896 shares on 02/17/2026.

FAQ

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

What does the DUOL Form 144 filing disclose?

The filing discloses a Form 144 notice for Common stock listing 1,901 Restricted Stock Units tied to Morgan Stanley Smith Barney LLC and noting a sale of 896 shares by Stephen Chen on 02/17/2026.

Who is the broker or intermediary named in the DUOL Form 144?

The filing names Morgan Stanley Smith Barney LLC at 1 New York Plaza as the broker/intermediary associated with the listed Restricted Stock Units and the proposed transaction.

What insider transaction is shown in the DUOL excerpt?

The excerpt shows that Stephen Chen sold 896 shares of Common stock on 02/17/2026, which is reported in the "Securities Sold During The Past 3 Months" section of the Form 144.

Does the DUOL Form 144 specify the methods or timing of any sale?

The provided excerpt lists securities and quantities but does not specify sale methods or exact timing beyond the 02/17/2026 sale record; sale mechanics and timing are not detailed in the excerpt.

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

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Accepted by SEC EDGAR 02/18/2026 - 04:41 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	4125676602
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	1901	213064.08	40013533	02/18/2026	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	02/15/2026	Restricted Stock Units	Issuer			1901	02/15/2026	N/A

* 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	02/17/2026	896	98614.30

144: Remarks and Signature

Remarks
Date of Notice	02/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/27/2025
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/ Stephen Chen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)