DUOL · Insider Trading
Duolingo, Inc. Class A Common Stock
Every open-market purchase and sale reported by DUOL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-13 | Mario Schlosser | Director | A | +116 | +$17.39K |
| 2026-10-13 | James H Shelton | Director | A | +100 | +$14.99K |
| 2026-10-13 | Amy Bohutinsky | Director | A | +108 | +$16.19K |
| 2026-10-13 | III John Osborne Lilly | Director | A | +98 | +$14.69K |
| 2026-10-09 | Luis von Ahn | President & CEO, Co-Founder | MIXED | — | −$12.50M |
| 2026-09-28 | Luis von Ahn | President & CEO, Co-Founder | MIXED | — | −$5.25M |
| 2026-09-23 | Luis von Ahn | President & CEO, Co-Founder | MIXED | — | −$5.27M |
| 2026-09-18 | Luis von Ahn | President & CEO, Co-Founder | MIXED | — | −$3.72M |
| 2026-09-15 | Stephen C. Chen | General Counsel | Sell | −8,072 | −$1.21M |
| 2026-09-10 | William B Gordon | Director | Sell | −10,000 | −$1.46M |
| 2026-08-19 | Stephen C. Chen | General Counsel | Sell | −1,024 | −$132.23K |
| 2026-08-19 | Natalie Glance | Chief Engineering Officer | Sell | −4,290 | −$567.32K |
| 2026-08-19 | Robert Meese | Chief Business Officer | Sell | −1,354 | −$174.84K |
| 2026-08-12 | Sallie Krawcheck | Director | A | +4,592 | — |
| 2026-07-14 | Amy Bohutinsky | Director | A | +130 | +$16.22K |
| 2026-07-14 | Mario Schlosser | Director | A | +140 | +$17.47K |
| 2026-07-14 | James H Shelton | Director | A | +120 | +$14.97K |
| 2026-07-14 | III John Osborne Lilly | Director | A | +118 | +$14.72K |
| 2026-06-18 | Stephen C. Chen | General Counsel | M | +58 | +$836 |
| 2026-06-05 | Bonnie Ross | Director | A | +2,001 | — |
| 2026-06-05 | Mario Schlosser | Director | A | +2,001 | — |
| 2026-06-05 | William B Gordon | Director | A | +2,001 | — |
| 2026-06-05 | III John Osborne Lilly | Director | A | +2,001 | — |
| 2026-06-05 | Amy Bohutinsky | Director | A | +2,001 | — |
| 2026-06-05 | Sara Clemens | Director | A | +2,001 | — |
| 2026-06-05 | James H Shelton | Director | A | +2,001 | — |
| 2026-05-29 | Luis von Ahn | President & CEO, Co-Founder | MIXED | −54,875 deriv. | — |
| 2026-05-29 | Severin Hacker | Chief Tech Officer, Co-Founder | MIXED | — | — |
| 2026-05-19 | Robert Meese | Chief Business Officer | MIXED | +18,109 | +$2.03M |
| 2026-05-19 | Natalie Glance | Chief Engineering Officer | MIXED | +33,769 | +$3.78M |
| 2026-05-19 | Stephen C. Chen | General Counsel | MIXED | +21,614 | +$2.42M |
| 2026-05-13 | Stephen C. Chen | General Counsel | M | +648 | +$9.34K |
| 2026-05-13 | Luis von Ahn | President & CEO, Co-Founder | MIXED | — | — |
| 2026-03-27 | Gillian Munson | Chief Financial Officer | A | +133,753 | — |
| 2026-03-16 | Robert Meese | Chief Business Officer | M | +30,000 | +$574.97K |
| 2026-03-04 | James H Shelton | Director | Buy | +5,000 | +$498.79K |
| 2026-03-03 | Natalie Glance | Chief Engineering Officer | M | +24,252 | +$147.46K |
| 2026-02-20 | Luis von Ahn | President & CEO, Co-Founder | MIXED | −53,640 deriv. | — |
| 2026-02-20 | Severin Hacker | Chief Tech Officer, Co-Founder | MIXED | −30,594 deriv. | — |
| 2026-02-20 | Natalie Glance | Chief Engineering Officer | Sell | −5,286 | −$594.02K |
| 2026-02-20 | Stephen C. Chen | General Counsel | Sell | −2,797 | −$313.93K |
| 2026-02-20 | Matthew Skaruppa | Chief Financial Officer | Sell | −5,856 | −$658.30K |
| 2026-02-20 | Robert Meese | Chief Business Officer | Sell | −1,000 | −$110.06K |
| 2025-12-30 | Stephen C. Chen | General Counsel | M | +1,800 | +$25.96K |
| 2025-12-18 | Bonnie Ross | Director | — | — | — |
| 2025-12-18 | Mario Schlosser | Director | — | — | — |
| 2025-12-09 | Natalie Glance | Chief Engineering Officer | M | +9,500 | +$47.50K |
| 2025-12-09 | Severin Hacker | Chief Tech Officer, Co-Founder | MIXED | — | — |
| 2025-12-03 | Luis von Ahn | President & CEO, Co-Founder | MIXED | −51,768 deriv. | — |
| 2025-12-03 | Severin Hacker | Chief Tech Officer, Co-Founder | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Robert Meese | Chief Business Officer | 171,191 | $23.35M |
| Natalie Glance | Chief Engineering Officer | 169,241 | $23.08M |
| Gillian Munson | Chief Financial Officer | 137,662 | $18.78M |
| Luis von Ahn | President & CEO, Co-Founder | 90,021 | $12.28M |
| William B Gordon | Director | 68,415 | $9.33M |
| Stephen C. Chen | General Counsel | 49,734 | $6.78M |
| Matthew Skaruppa | Chief Financial Officer | 31,991 | $4.36M |
| James H Shelton | Director | 11,853 | $1.62M |
| III John Osborne Lilly | Director | 9,121 | $1.24M |
| Amy Bohutinsky | Director | 7,766 | $1.06M |
| Sara Clemens | Director | 5,955 | $812.20K |
| Sallie Krawcheck | Director | 4,592 | $626.30K |
| Mario Schlosser | Director | 4,378 | $597.12K |
| Bonnie Ross | Director | 3,345 | $456.22K |
| Severin Hacker | Chief Tech Officer, Co-Founder | 72 | $9.82K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the DUOL quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.