Duolingo (NASDAQ: DUOL) insider plans $355K August stock sale

Rhea-AI Filing Summary

Duolingo, Inc. insider Natalie Glance filed a notice to sell 2,751 shares of common stock of DUOL through Morgan Stanley Smith Barney LLC Executive Financial Services, with an aggregate market value of $355,239.66. The planned sale is listed for August 17, 2026 on NASDAQ and involves restricted stock held from the issuer.

The filing also reports that during the past three months, on May 18, 2026, Glance sold 3,360 shares of DUOL common stock for aggregate proceeds of $381,656.35.

Key Figures

Shares to be sold: 2,751 shares Aggregate market value of planned sale: $355,239.66 Planned sale date: 08/17/2026 +2 more

5 metrics

Shares to be sold 2,751 shares Planned sale of Duolingo common stock under Form 144

Aggregate market value of planned sale $355,239.66 Value of 2,751 Duolingo common shares to be sold

Planned sale date 08/17/2026 Expected date of NASDAQ sale of restricted common shares

Shares sold in past 3 months 3,360 shares Duolingo common stock sold on 05/18/2026

Proceeds from past 3-month sale $381,656.35 Aggregate proceeds from 3,360-share sale on 05/18/2026

Key Terms

Restricted Stock, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

Restricted Stock financial

"Common | 08/15/2026 | 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.

Securities To Be Sold financial

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months financial

"144: Securities Sold During The Past 3 Months"

FAQ

What does Duolingo (DUOL) insider Natalie Glance plan to sell under this Form 144?

Natalie Glance plans to sell 2,751 shares of Duolingo common stock under this Form 144. The shares are restricted stock and the planned sale is through Morgan Stanley Smith Barney LLC on NASDAQ.

What is the aggregate market value of the Duolingo (DUOL) shares to be sold?

The aggregate market value of the Duolingo shares to be sold is $355,239.66. This amount corresponds to the planned sale of 2,751 common shares reported in the Form 144 filing by insider Natalie Glance.

When is the planned sale date for the Duolingo (DUOL) shares in this notice?

The planned sale date for the Duolingo shares is August 17, 2026. The Form 144 indicates these restricted common shares are expected to be sold on NASDAQ on that date through Morgan Stanley Smith Barney LLC.

What prior Duolingo (DUOL) stock sales by Natalie Glance are disclosed?

The notice discloses that on May 18, 2026, Natalie Glance sold 3,360 shares of Duolingo common stock. These past three-month sales generated aggregate proceeds of $381,656.35, as reported in the Form 144 filing.

Which broker is handling the planned Duolingo (DUOL) share sale for Natalie Glance?

The planned sale is handled by Morgan Stanley Smith Barney LLC Executive Financial Services. Their office at 1 New York Plaza, 8th Floor, New York, NY 10004 is listed in the Form 144 as the broker for the NASDAQ transaction.

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Available on EDGAR 08/17/2026 - 06:14 PM Accepted by SEC EDGAR 08/17/2026 - 06:13 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
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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2751	355239.66	40387012	08/17/2026	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	08/15/2026	Restricted Stock	Issuer			2751	08/15/2026	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	05/18/2026	3360	381656.35

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)