🕵️ Duolingo, Inc. ($DUOL)
SEC insider & ownership activity, last 12 months · CIK 1562088 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. 2 planned sales are pending, the largest $4.4M (Luis Von Ahn Arellano). No red-flag 8-Ks in the window.
🚨 8 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
API and the
alerts bot.
Insider flow
1 buyer, $499K (1 lots) · 6 sellers, value withheld pending verification (112 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Natalie Glance | 0 | – | 26 | value withheld pending verification | Aug 18, 2026 |
| Stephen C. Chen | 0 | – | 16 | $2.5M | Sep 14, 2026 |
| Hacker Severin | 0 | – | 49 | value withheld pending verification | Nov 19, 2025 |
| Matthew Skaruppa | 0 | – | 11 | $1.7M | Feb 18, 2026 |
| William B. Gordon | 0 | – | 6 | $1.5M | Sep 8, 2026 |
| Robert Meese | 0 | – | 4 | $701K | Aug 17, 2026 |
| James H. Shelton | 1 | $499K | 0 | – | Mar 3, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Baillie Gifford & Co | 12.4% | 13G | Nov 4, 2025 | filing ↗ | |
| Von Ahn Luis | 8.2% | Class A | 13G | Aug 12, 2026 | filing ↗ |
| Hacker Severin | 7.6% | 13G | Apr 17, 2025 | filing ↗ | |
| AQR Capital Management, LLC | 5.8% | Class A | 13G | Aug 12, 2026 | filing ↗ |
| AQR Capital Management Holdings, LLC | 5.8% | Class A | 13G | Aug 12, 2026 | filing ↗ |
| Vanguard Capital Management | 5.1% | 13G | Jul 31, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Luis Von Ahn Arellano | $4.4M | Sep 16, 2026 | filing ↗ |
| LUIS VON AHN Foundation | $2.9M | Sep 16, 2026 | filing ↗ |
| Stephen Chen | $1.2M | Sep 14, 2026 | filing ↗ |
| Natalie Glance | $200K | Aug 18, 2026 | filing ↗ |
| Stephen Chen | $132K | Aug 17, 2026 | filing ↗ |
| Natalie Glance | $355K | Aug 17, 2026 | filing ↗ |
| Robert Meese | $175K | Aug 17, 2026 | filing ↗ |
| Natalie Glance | $377K | May 18, 2026 | filing ↗ |
| Stephen Chen | $222K | May 18, 2026 | filing ↗ |
| Robert Meese | $159K | May 15, 2026 | filing ↗ |
| Stephen Chen | $92K | May 15, 2026 | filing ↗ |
| Natalie Glance | $216K | May 15, 2026 | filing ↗ |
| Stephen Chen | $213K | Feb 18, 2026 | filing ↗ |
| Matthew Skaruppa | $447K | Feb 18, 2026 | filing ↗ |
| Natalie Glance | $397K | Feb 18, 2026 | filing ↗ |
| Matthew Skaruppa | $206K | Feb 17, 2026 | filing ↗ |
| Natalie Glance | $192K | Feb 17, 2026 | filing ↗ |
| Stephen Chen | $99K | Feb 17, 2026 | filing ↗ |
| Robert Meese | $110K | Feb 17, 2026 | filing ↗ |
| The Severin Hacker FOUNDATIONC/O Philip Bartels | $2.0M | Dec 12, 2025 | filing ↗ |
| Matthew Skaruppa | $545K | Nov 18, 2025 | filing ↗ |
| Stephen Chen | $270K | Nov 18, 2025 | filing ↗ |
| Natalie Glance | $441K | Nov 18, 2025 | filing ↗ |
| Robert Meese | $257K | Nov 17, 2025 | filing ↗ |
| Natalie Glance | $451K | Nov 17, 2025 | filing ↗ |
| Stephen Chen | $228K | Nov 17, 2025 | filing ↗ |
| Matthew Skaruppa | $498K | Nov 17, 2025 | filing ↗ |
| LUIS VON AHN Foundation | $320K | Oct 8, 2025 | filing ↗ |
| Severin Hacker | $12.9M | Oct 6, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | Aug 18, 2026 | filing ↗ |
| Officer/director changes (5.02) | Aug 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 10, 2026 | filing ↗ |
| Earnings (2.02) | Aug 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 5, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 3, 2026 | filing ↗ |
| Earnings (2.02) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Other events (8.01) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Earnings (2.02) | Jan 8, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 8, 2026 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |