Severin Hacker's most recent trade in Duolingo Inc - Ordinary Shares - Class A was a trade of 60,000 Class B Common Stock done . Disclosure was reported to the exchange on May 27, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 27 May 2026 | 60,000 | 237,193 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 27 May 2026 | 60,000 | 210,000 | - | - | Performance-Based Restricted Stock Units | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 27 May 2026 | 31,920 | 205,273 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 17 Feb 2026 | 60,000 | 207,787 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 17 Feb 2026 | 60,000 | 270,000 | - | - | Performance-Based Restricted Stock Units | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 17 Feb 2026 | 30,594 | 177,193 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 08 Dec 2025 | 50,000 | 50,072 | - | 0 | Class A Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 08 Dec 2025 | 50,000 | 2,836,917 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Gift of securities by or to the insider at price $ 0.00 per share. | 08 Dec 2025 | 50,000 | 72 | - | 0 | Class A Common Stock | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 08 Dec 2025 | 50,000 | 50,072 | - | 0 | - | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Gift of securities by or to the insider at price $ 0.00 per share. | 08 Dec 2025 | 50,000 | 72 | - | 0 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 08 Dec 2025 | 50,000 | 50,072 | - | 0 | - | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Gift of securities by or to the insider at price $ 0.00 per share. | 08 Dec 2025 | 50,000 | 72 | - | 0 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 01 Dec 2025 | 60,000 | 174,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 01 Dec 2025 | 60,000 | 330,000 | - | - | Performance-Based Restricted Stock Units | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 01 Dec 2025 | 31,770 | 142,535 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 01 Dec 2025 | 5,252 | 0 | - | - | Stock Option (Right to Buy) | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 01 Dec 2025 | 5,252 | 147,787 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | Class A Common Stock | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 5,252 | - | - | Stock Option (Right to Buy) | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 124,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 114,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 19 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 174.61 per share. | 19 Nov 2025 | 3,089 | 787 | - | 174.6 | 539,362 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 174.61 per share. | 19 Nov 2025 | 3,089 | 787 | - | 174.6 | 539,362 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 174.61 per share. | 19 Nov 2025 | 3,089 | 787 | - | 174.6 | 539,362 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 171.50 per share. | 19 Nov 2025 | 2,009 | 5,917 | - | 171.5 | 344,534 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 171.50 per share. | 19 Nov 2025 | 2,009 | 5,917 | - | 171.5 | 344,534 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 171.50 per share. | 19 Nov 2025 | 2,009 | 5,917 | - | 171.5 | 344,534 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 172.39 per share. | 19 Nov 2025 | 1,281 | 4,636 | - | 172.4 | 220,831 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 172.39 per share. | 19 Nov 2025 | 1,281 | 4,636 | - | 172.4 | 220,831 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 172.39 per share. | 19 Nov 2025 | 1,281 | 4,636 | - | 172.4 | 220,831 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 169.57 per share. | 19 Nov 2025 | 1,146 | 8,926 | - | 169.6 | 194,324 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 169.57 per share. | 19 Nov 2025 | 1,146 | 8,926 | - | 169.6 | 194,324 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 169.57 per share. | 19 Nov 2025 | 1,146 | 8,926 | - | 169.6 | 194,324 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 170.55 per share. | 19 Nov 2025 | 1,000 | 7,926 | - | 170.5 | 170,549 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 170.55 per share. | 19 Nov 2025 | 1,000 | 7,926 | - | 170.5 | 170,549 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 170.55 per share. | 19 Nov 2025 | 1,000 | 7,926 | - | 170.5 | 170,549 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 173.74 per share. | 19 Nov 2025 | 760 | 3,876 | - | 173.7 | 132,046 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 173.74 per share. | 19 Nov 2025 | 760 | 3,876 | - | 173.7 | 132,046 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 173.74 per share. | 19 Nov 2025 | 760 | 3,876 | - | 173.7 | 132,046 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 175.46 per share. | 19 Nov 2025 | 435 | 352 | - | 175.5 | 76,324 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 175.46 per share. | 19 Nov 2025 | 435 | 352 | - | 175.5 | 76,324 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 175.46 per share. | 19 Nov 2025 | 435 | 352 | - | 175.5 | 76,324 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 176.68 per share. | 19 Nov 2025 | 280 | 72 | - | 176.7 | 49,471 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 176.68 per share. | 19 Nov 2025 | 280 | 72 | - | 176.7 | 49,471 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 176.68 per share. | 19 Nov 2025 | 280 | 72 | - | 176.7 | 49,471 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 15,252 | - | - | Stock Option (Right to Buy) | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | Class A Common Stock | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 114,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 124,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 04 Nov 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.94 per share. | 04 Nov 2025 | 1,778 | 5,889 | - | 261.9 | 465,736 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.94 per share. | 04 Nov 2025 | 1,778 | 5,889 | - | 261.9 | 465,736 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.94 per share. | 04 Nov 2025 | 1,778 | 5,889 | - | 261.9 | 465,736 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.12 per share. | 04 Nov 2025 | 1,727 | 1,217 | - | 266.1 | 459,594 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.12 per share. | 04 Nov 2025 | 1,727 | 1,217 | - | 266.1 | 459,594 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.12 per share. | 04 Nov 2025 | 1,727 | 1,217 | - | 266.1 | 459,594 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 264.06 per share. | 04 Nov 2025 | 1,625 | 3,704 | - | 264.1 | 429,098 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 264.06 per share. | 04 Nov 2025 | 1,625 | 3,704 | - | 264.1 | 429,098 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 264.06 per share. | 04 Nov 2025 | 1,625 | 3,704 | - | 264.1 | 429,098 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.87 per share. | 04 Nov 2025 | 1,145 | 72 | - | 266.9 | 305,564 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.87 per share. | 04 Nov 2025 | 1,145 | 72 | - | 266.9 | 305,564 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 266.87 per share. | 04 Nov 2025 | 1,145 | 72 | - | 266.9 | 305,564 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 258.77 per share. | 04 Nov 2025 | 936 | 8,392 | - | 258.8 | 242,213 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 258.77 per share. | 04 Nov 2025 | 936 | 8,392 | - | 258.8 | 242,213 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 258.77 per share. | 04 Nov 2025 | 936 | 8,392 | - | 258.8 | 242,213 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 265.02 per share. | 04 Nov 2025 | 760 | 2,944 | - | 265.0 | 201,412 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 265.02 per share. | 04 Nov 2025 | 760 | 2,944 | - | 265.0 | 201,412 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 265.02 per share. | 04 Nov 2025 | 760 | 2,944 | - | 265.0 | 201,412 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 257.92 per share. | 04 Nov 2025 | 744 | 9,328 | - | 257.9 | 191,892 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 257.92 per share. | 04 Nov 2025 | 744 | 9,328 | - | 257.9 | 191,892 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 257.92 per share. | 04 Nov 2025 | 744 | 9,328 | - | 257.9 | 191,892 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 262.97 per share. | 04 Nov 2025 | 560 | 5,329 | - | 263.0 | 147,265 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 259.71 per share. | 04 Nov 2025 | 560 | 7,832 | - | 259.7 | 145,436 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 259.71 per share. | 04 Nov 2025 | 560 | 7,832 | - | 259.7 | 145,436 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 262.97 per share. | 04 Nov 2025 | 560 | 5,329 | - | 263.0 | 147,265 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 259.71 per share. | 04 Nov 2025 | 560 | 7,832 | - | 259.7 | 145,436 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 262.97 per share. | 04 Nov 2025 | 560 | 5,329 | - | 263.0 | 147,265 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.14 per share. | 04 Nov 2025 | 165 | 7,667 | - | 261.1 | 43,088 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.14 per share. | 04 Nov 2025 | 165 | 7,667 | - | 261.1 | 43,088 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 261.14 per share. | 04 Nov 2025 | 165 | 7,667 | - | 261.1 | 43,088 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 60,000 | 390,000 | - | - | Performance-Based Restricted Stock Units | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 60,000 | 146,075 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 31,770 | 114,305 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 25,252 | - | - | Stock Option (Right to Buy) | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 96,075 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 86,075 | - | - | Class B Common Stock | ||
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | Class A Common Stock | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | 20 Oct 2025 | 10,000 | 10,072 | - | 38.1 | 380,800 | - | |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 316.64 per share. | 20 Oct 2025 | 1,600 | 2,759 | - | 316.6 | 506,617 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 316.64 per share. | 20 Oct 2025 | 1,600 | 2,759 | - | 316.6 | 506,617 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 316.64 per share. | 20 Oct 2025 | 1,600 | 2,759 | - | 316.6 | 506,617 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 312.37 per share. | 20 Oct 2025 | 1,281 | 5,959 | - | 312.4 | 400,152 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 312.37 per share. | 20 Oct 2025 | 1,281 | 5,959 | - | 312.4 | 400,152 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 312.37 per share. | 20 Oct 2025 | 1,281 | 5,959 | - | 312.4 | 400,152 | - |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 315.79 per share. | 20 Oct 2025 | 1,100 | 4,359 | - | 315.8 | 347,365 | Class A Common Stock |
| Duolingo Inc (Class A) | Dr. Severin Hacker, PhD | Director, Chief Tech Officer, Co-Founder, Ten Percent Owner | Sale of securities on an exchange or to another person at price $ 315.79 per share. | 20 Oct 2025 | 1,100 | 4,359 | - | 315.8 | 347,365 | - |