Insider to sell 1,870 shares of Duolingo (NASDAQ: DUOL) stock

Rhea-AI Filing Summary

A shareholder filed a notice of intent to sell 1,870 shares of common stock through Morgan Stanley Smith Barney, with an aggregate market value of $205,813.32, to be sold on or around 02/17/2026 on the NASDAQ.

The shares to be sold were acquired as restricted stock on 02/15/2026 directly from the issuer in the same amount. Over the prior three months, Matthew Skaruppa previously sold 3,059 common shares on 11/18/2025 for $537,642.80 in gross proceeds.

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	1870	205813.32	40013533	02/17/2026	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	02/15/2026	Restricted Stock	Issuer			1870	02/15/2026	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
MATTHEW SKARUPPA 5900 Penn Avenue Pittsburgh PA 15206	Common	11/18/2025	3059	537642.80

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 this Form 144 filing related to DUOL report?

The filing reports a planned sale of 1,870 common shares through Morgan Stanley Smith Barney, with an aggregate market value of $205,813.32, to be executed on or about February 17, 2026 on the NASDAQ exchange.

Who is selling shares in this DUOL-related Form 144 and how many?

Matthew Skaruppa is identified as the seller, with an intent to sell 1,870 shares of common stock. These shares were acquired as restricted stock from the issuer and are planned to be sold through Morgan Stanley Smith Barney on NASDAQ.

How were the DUOL-related shares to be sold originally acquired?

The 1,870 common shares to be sold were acquired as restricted stock from the issuer on February 15, 2026. The filing notes the nature of payment for this acquisition as “Not Applicable”, indicating no separate cash purchase at that time.

What prior DUOL-related share sales has this filer made recently?

Over the past three months, the filer Matthew Skaruppa sold 3,059 common shares on November 18, 2025, generating $537,642.80 in gross proceeds. This prior transaction is disclosed alongside the newly planned sale in the notice.

Which broker is handling the planned DUOL share sale?

The planned sale of 1,870 common shares is to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, with the NASDAQ exchange named for the transaction.

How many DUOL-related shares are listed as outstanding in this notice?

The notice lists 40,013,533 shares as the number of shares or other units outstanding for the class of common stock. This figure provides context for the size of the planned 1,870-share sale relative to the total outstanding amount.