| 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 | 19 Feb 2026 | 0001870350 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DUOL | Class A Common Stock | Sale | $191,614 | -1,741 | -1.4% | $110.06 | 118,925 | 17 Feb 2026 | Direct | F1 |
| transaction | DUOL | Class A Common Stock | Sale | $168,332 | -1,499 | -1.3% | $112.30 | 117,426 | 18 Feb 2026 | Direct | F2, F3 |
| transaction | DUOL | Class A Common Stock | Sale | $18,849 | -166 | -0.14% | $113.55 | 117,260 | 18 Feb 2026 | Direct | F2, F4 |
| transaction | DUOL | Class A Common Stock | Sale | $173,719 | -1,520 | -1.3% | $114.29 | 115,740 | 18 Feb 2026 | Direct | F2, F5 |
| transaction | DUOL | Class A Common Stock | Sale | $41,504 | -360 | -0.31% | $115.29 | 115,380 | 18 Feb 2026 | Direct | F2, F6 |
| holding | DUOL | Class A Common Stock | 130 | 17 Feb 2026 | By son |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units ("RSUs") and delivery of shares. |
| F2 | The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024. |
| F3 | The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $111.87 to $112.86, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. |
| F4 | The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $112.87 to $113.77, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. |
| F5 | The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $113.88 to $114.87, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. |
| F6 | The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $114.92 to $115.57, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. |