Duolingo, Inc. (DUOL) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-15 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Duolingo, Inc. (DUOL) CIK: 0001562088 --- Reporting Owner --- Name: Meese Robert CIK: 0001869668 Role: Officer (Chief Business Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-05-15 | Code: A (Grant or award) Shares: +19,529 | Price: $112.06 Total Value: $2,188,419.74 Shares Owned After: 172,165 | Ownership: D (Direct) 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, 2026. [Transaction #2] Security: Class A Common Stock Date: 2026-05-15 | Code: S (Open market sale) Shares: -1,420 | Price: $112.16 Total Value: $159,267.20 Shares Owned After: 170,745 | Ownership: D (Direct) Footnotes: [F2] Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F3] Shares held by Eliot Meese Qualified Minor's Trust. [Holding #2] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F4] Shares held by Isaac Meese Qualified Minor's Trust. --- Footnotes (Complete Index) --- 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, 2026. F2: Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares. F3: Shares held by Eliot Meese Qualified Minor's Trust. F4: Shares held by Isaac Meese Qualified Minor's Trust. --- Signature --- /s/ /s/ Stephen Chen, as Attorney-in-Fact for Robert Meese (2026-05-19)