| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Schlosser Mario | Director | C/O DUOLINGO, INC., 5900 PENN AVENUE, PITTSBURGH | /s/ Stephen Chen, as Attorney-in-Fact for Mario Schlosser | 18 Dec 2025 | 0001844320 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | DUOL | Class A Common Stock | 2,121 | 11 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | On June 20, 2025, the Reporting Person filed a Form 4 which inadvertently omitted an additional 1,742 shares beneficially owned following the reported transaction. |