Duolingo, Inc. — Director's Dealing 2025

May 16, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Duolingo, Inc. (DUOL)
CIK: 0001562088
Period of Report: 2025-05-15

Reporting Person: Glance Natalie (Chief Engineering Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-15	Class A Common Stock	A	8709	—	Acquired	135960	Direct
2025-05-15	Class A Common Stock	S	3039	$531.71	Disposed	132921	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	130	Indirect

Footnotes

F1: Constitute Restricted Stock Units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Issuer's Class A Common Stock for each RSU upon vesting. 1/16th of the RSUs shall vest on each quarterly anniversary of May 15, 2025.

F2: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.