| 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 | 13 Aug 2025 | 0001870350 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DUOL | Class A Common Stock | Gift | $0 | -2,300 | -1.8% | $0.000000 | 124,645 | 12 Aug 2025 | Direct | |
| holding | DUOL | Class A Common Stock | 130 | 12 Aug 2025 | By son |