Insider reports sale of 3,545 and 1,741 shares

Morgan Stanley Smith Barney LLC submitted a Section 144 notice concerning Common shares described as Restricted Stock with an execution date of 05/15/2026.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Section 144 notice concerning Common shares described as Restricted Stock with an execution date of 05/15/2026. The filing lists recent sales by Natalie Glance: 3,545 shares on 02/18/2026 and 1,741 shares on 02/17/2026, with dollar amounts shown in the excerpt.

Insights

Capital Markets Compliance

Notice of proposed/resale activity by an affiliate broker and past disposals by an individual.

The record shows a Section 144 filing listing Common restricted stock with an effective date of 05/15/2026. The excerpt also itemizes two recent dispositions by Natalie Glance on 02/17/2026 and 02/18/2026, including share counts and corresponding dollar amounts.

Timing and cash‑flow treatment for the scheduled sale are not specified in the provided excerpt; subsequent filings would report settlement details if required.

Key Figures

Scheduled security date: 05/15/2026 Sale on 02/18/2026: 3,545 shares Proceeds on 02/18/2026: $402,402.88 +3 more

6 metrics

Scheduled security date 05/15/2026 Securities to be sold execution date

Sale on 02/18/2026 3,545 shares Disposition by Natalie Glance

Proceeds on 02/18/2026 $402,402.88 Dollar amount listed with 3,545 shares

Sale on 02/17/2026 1,741 shares Disposition by Natalie Glance

Proceeds on 02/17/2026 $191,615.50 Dollar amount listed with 1,741 shares

Broker Morgan Stanley Smith Barney LLC Filer Information line

Key Terms

Restricted Stock, Section 144, Issuer

3 terms

Restricted Stock financial

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

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.

Section 144 regulatory

"144: Securities To Be Sold"

Issuer regulatory

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

FAQ

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

What does the DUOL Section 144 filing report?

It reports a notice involving Common restricted stock dated 05/15/2026. The excerpt lists the security type as Restricted Stock and shows recent sales by a named individual in February 2026.

Who is the individual shown selling shares in this excerpt for DUOL?

The excerpt names Natalie Glance as the seller of Common shares on 02/17/2026 and 02/18/2026. The filing shows the exact share counts and dollar amounts for those transactions.

How many shares did Natalie Glance sell in the transactions listed?

The excerpt lists two sales: 1,741 shares on 02/17/2026 and 3,545 shares on 02/18/2026, with corresponding proceeds reported in the filing excerpt.

Does the filing state who receives proceeds from the sale?

The provided excerpt does not state proceeds recipients beyond listing dollar amounts for the February transactions. The Section 144 notice itself names the broker Morgan Stanley Smith Barney LLC.

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

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Accepted by SEC EDGAR 05/15/2026 - 05:24 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	0001870350
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	NATALIE GLANCE
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	1929	216347.38	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			1929	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
NATALIE GLANCE 5900 Penn Avenue Pittsburgh PA 15206	Common	02/18/2026	3545	402402.88
NATALIE GLANCE 5900 Penn Avenue Pittsburgh PA 15206	Common	02/17/2026	1741	191615.50

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/ Natalie Glance
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)