Skaruppa files Form 144 to sell 3,986 RSUs

Matthew Skaruppa submitted a Section 144 notice to sell 3,986 restricted stock units of common stock, listed as issued on 02/15/2026.

Rhea-AI Filing Summary

Matthew Skaruppa submitted a Section 144 notice to sell 3,986 restricted stock units of common stock, listed as issued on 02/15/2026. The filing also discloses a prior sale of 1,870 common shares on 02/17/2026 for $205,813.32.

The broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services at New York Plaza. The filing identifies the securities as Restricted Stock Units to be sold; cash‑flow treatment and planned distribution methods are not stated in the excerpt.

Insights

Securities Compliance Counsel

Form 144 notice lists 3,986 RSUs and a recent 1,870-share sale.

The notice records 3,986 restricted stock units issued on 02/15/2026 that the reporting person proposes to sell, and a prior sale of 1,870 shares on 02/17/2026 for $205,813.32. The broker of record is Morgan Stanley Smith Barney LLC Executive Financial Services.

Execution details such as sale method, timing, or who receives proceeds are not included in the excerpt; subsequent filings or broker confirmations would provide transaction mechanics and completion status.

FAQ

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

What does Matthew Skaruppa's Form 144 disclose for DUOL?

The Form 144 lists 3,986 restricted stock units to be sold, issued on 02/15/2026. It also records a prior sale of 1,870 shares on 02/17/2026 for $205,813.32 and names Morgan Stanley Smith Barney LLC as broker.

How many shares were reported sold recently by the reporting person?

The filing reports a sale of 1,870 common shares on 02/17/2026 for $205,813.32. That sale is disclosed in the 'Securities Sold During The Past 3 Months' section of the excerpt.

What type of securities are being offered in the Form 144?

The notice identifies the securities as Restricted Stock Units of common stock, with 3,986 RSUs shown as issued on 02/15/2026. The excerpt does not state the terms of vesting or conversion into common shares.

Which broker-dealer is listed on the Form 144 filing?

The broker of record is listed as Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY. The excerpt includes that broker information but not execution details.

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	0001869669
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	MATTHEW SKARUPPA
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	3986	446750.88	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			3986	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
MATTHEW SKARUPPA 5900 Penn Avenue Pittsburgh PA 15206	Common	02/17/2026	1870	205813.32

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