Natalie Glance - 15 Aug 2025 Form 4 Insider Report for Duolingo, Inc. (DUOL)

Role: Chief Engineering Officer
Signature: /s/ Stephen Chen, as Attorney-in-Fact for Natalie Glance
Issuer symbol: DUOL
Transactions as of: 15 Aug 2025
Net transactions value: -$833,433
Form type: 4
Filing time: 18 Aug 2025, 17:21:46 UTC
Previous filing: 13 Aug 2025
Next filing: 19 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Glance Natalie	Chief Engineering Officer	C/O DUOLINGO, INC., 5900 PENN AVENUE, PITTSBURGH	/s/ Stephen Chen, as Attorney-in-Fact for Natalie Glance	18 Aug 2025	0001870350

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DUOL	Class A Common Stock	Sale	$833,433	-2,533	-2%	$329.03	122,112	15 Aug 2025	Direct	F1
holding	DUOL	Class A Common Stock						130	15 Aug 2025	By son

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares.