| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| DUOL | President & CEO, Co-Founder | Feb 15, 2022 | Sale | $102.02 | 600 | 61,210 | 200 | Feb 17, 2022, 06:41 PM |
| DUOL | President & CEO, Co-Founder | Feb 10, 2022 | Sale | $102.17 | 2,062 | 210,671 | 0 | Feb 11, 2022, 04:30 PM |
| DUOL | President & CEO, Co-Founder | Feb 09, 2022 | Sale | $102.00 | 700 | 71,402 | 0 | Feb 11, 2022, 04:30 PM |
| DUOL | President & CEO, Co-Founder | Dec 16, 2021 | Sale | $105.04 | 12,000 | 1,260,535 | 10,868 | Dec 20, 2021, 08:06 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| DUOL | President & CEO, Co-Founder | Feb 15, 2022 | Sale | 61,210 |
| DUOL | President & CEO, Co-Founder | Feb 10, 2022 | Sale | 210,671 |
| DUOL | President & CEO, Co-Founder | Feb 09, 2022 | Sale | 71,402 |
| DUOL | President & CEO, Co-Founder | Dec 16, 2021 | Sale | 1,260,535 |