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

Reporting relationship: General Counsel
Issuer ticker: DUOL
Reported as of: 17 Aug 2026
Net transaction value: -$132,229
SEC form: 4
Accepted by SEC: 19 Aug 2026, 17:16:02 UTC
Prior SEC filing: 18 Jun 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 19 Aug 2026.

Key facts

This page summarizes Stephen C. Chen's Form 4 filing for Duolingo, Inc. (DUOL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 19 Aug 2026, 17:16.

Change

Previous filing in this sequence was filed on 18 Jun 2026.
Current net transaction value: -$132,229.

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: 19 Aug 2026

Reported non-derivative transactions

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

DUOL transaction

Class A Common Stock

Sale

Transaction value: $132,229
Shares: -1,024
Change %: -1.9%
Price: $129.13
Shares after: 51,841
Date: 17 Aug 2026
Ownership: Direct
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

Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of restricted stock units and delivery of shares