Luis von Ahn - 11 May 2026 Form 4 Insider Report for Duolingo, Inc. (DUOL)

Reporting relationship: President & CEO, Co-Founder, Director, 10%+ Owner
Issuer ticker: DUOL
Reported as of: 11 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 13 May 2026, 16:26:43 UTC
Prior SEC filing: 20 Feb 2026
Next SEC filing: 29 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Stephen Chen, as Attorney-in-Fact for Luis von Ahn

Key filing fact

Luis von Ahn filed Form 4 for Duolingo, Inc. (DUOL) on 13 May 2026.

Key facts

This page summarizes Luis von Ahn's Form 4 filing for Duolingo, Inc. (DUOL).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 13 May 2026, 16:26.

Change

Previous filing in this sequence was filed on 20 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001829259 Primary reporting owner

von Ahn Luis

Relationship: President & CEO, Co-Founder, Director, 10%+ Owner
Address: C/O DUOLINGO, INC., 5900 PENN AVENUE, PITTSBURGH
Signature: /s/ Stephen Chen, as Attorney-in-Fact for Luis von Ahn
Signature date: 13 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DUOL transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +50,000
Change %
Price: $0.000000^*
Shares after: 50,000
Date: 11 May 2026
Ownership: Direct

DUOL transaction

Class A Common Stock

Gift

Transaction value
Shares: -50,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 11 May 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

DUOL transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -50,000
Change %: -1.5%
Price: $0.000000^*
Shares after: 3,302,995
Date: 11 May 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 50,000
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.