Stephen C. Chen - 17 Jun 2026 Form 4 Insider Report for Duolingo, Inc. (DUOL)

Reporting relationship: General Counsel
Issuer ticker: DUOL
Reported as of: 17 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Jun 2026, 17:05:58 UTC
Prior SEC filing: 19 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Stephen C. Chen

Key filing fact

Stephen C. Chen filed Form 4 for Duolingo, Inc. (DUOL) on 18 Jun 2026.

Key facts

This page summarizes Stephen C. Chen's Form 4 filing for Duolingo, Inc. (DUOL).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Jun 2026, 17:05.

Change

Previous filing in this sequence was filed on 19 May 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 0001869758 Primary reporting owner

Chen Stephen C.

Relationship: General Counsel
Address: C/O DUOLINGO, INC., 5900 PENN AVENUE, PITTSBURGH
Signature: /s/ Stephen C. Chen
Signature date: 18 Jun 2026

Reported non-derivative transactions

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

DUOL transaction

Class A Common Stock

Options Exercise

Transaction value
Shares: +58
Change %: +0.11%
Price: $14.42^*
Shares after: 52,865
Date: 17 Jun 2026
Ownership: Direct

Reported derivative securities

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

DUOL transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -58
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 17 Jun 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 58
Exercise price: $14.42
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

The options are fully vested and exercisable.

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