| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Chen Stephen C. | General Counsel | C/O DUOLINGO, INC., 5900 PENN AVENUE, PITTSBURGH | /s/ Stephen C. Chen | 16 May 2025 | 0001869758 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DUOL | Class A Common Stock | Award | $0 | +5,443 | +16% | $0.000000 | 40,077 | 15 May 2025 | Direct | F1 |
| transaction | DUOL | Class A Common Stock | Sale | $668,359 | -1,257 | -3.1% | $531.71 | 38,820 | 15 May 2025 | Direct | F2 |
| Id | Content |
|---|---|
| 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. |