Chen Stephen C.
SEC CIK 1869758 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| DUOL | Duolingo, Inc. | GC | 43.8K | — | $28.18M | 59 | 2021-11-15 | 2026-09-14 |
Most active insiders at DUOL, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Hacker Severin | Chief Tech Off, Co-Founder, Dir, 10% | — | $10.72M |
| 2 | von Ahn Luis | Pres, CEO, Co-Founder, Dir, 10% | — | $10.42M |
| 3 | Glance Natalie | Chief Engineering Off | — | $3.67M |
| 4 | Chen Stephen C. | GC | — | $2.46M |
| 5 | Skaruppa Matthew | CFO | — | $1.69M |
| 6 | GORDON WILLIAM B | Dir | — | $1.46M |
| 7 | Meese Robert | Chief Business Off | — | $701.1K |
| 8 | Shelton James H | Dir | $498.8K | — |
| 9 | Ross Bonnie | Dir | — | — |
| 10 | Lilly III John Osborne | Dir | — | — |
Transactions 59
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-09-15 18:51 | 2026-09-14 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $149.33 | -8,072 | 43.8K | -16% | -$1.21M |
| 2026-08-19 17:16 | 2026-08-17 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $129.13 | -1,024 | 51.8K | -2% | -$132.2K | |
| D | 2026-06-18 17:05 | 2026-06-17 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +58 | 52.9K | +0.1% | +$836.36 |
| T | 2026-05-19 16:42 | 2026-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $112.06 | +24.4K | 55.6K | +78% | +$2.74M |
| MT | 2026-05-19 16:42 | 2026-05-15+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $113.18 | -2,797 | 52.8K | -5% | -$316.6K |
| D | 2026-05-13 16:24 | 2026-05-12 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +648 | 31.2K | +2% | +$9,344 |
| M | 2026-02-20 | 2026-02-17+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $112.24 | -2,797 | 32.4K | -8% | -$313.9K |
| D | 2025-12-30 | 2025-12-29 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +1,800 | 33.3K | +6% | +$26.0K |
| M | 2025-11-19 | 2025-11-17+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $176.82 | -2,796 | 32.9K | -8% | -$494.4K |
| D | 2025-09-19 | 2025-09-18 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +1,700 | 34.3K | +5% | +$24.5K |
| 2025-08-28 | 2025-08-26 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $321.36 | -1,515 | 32.6K | -4% | -$486.9K | |
| 2025-08-18 | 2025-08-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $329.03 | -1,282 | 34.2K | -4% | -$421.8K | |
| 2025-08-15 | 2025-08-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | G - Gift | $0.00 | -750 | 35.4K | -2% | $0 | |
| M | 2025-05-19 | 2025-05-16 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $526.93 | -2,635 | 36.4K | -7% | -$1.39M |
| 2025-05-16 | 2025-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $531.71 | -1,257 | 38.8K | -3% | -$668.4K | |
| 2025-05-16 | 2025-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $0.00 | +5,443 | 40.1K | +16% | $0 | |
| M | 2025-02-19 | 2025-02-18 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $435.12 | -2,064 | 35.5K | -5% | -$898.1K |
| D | 2025-02-07 | 2025-02-06 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +1,331 | 36.7K | +4% | +$19.2K |
| D | 2024-12-20 | 2024-12-19 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +3,700 | 35.4K | +12% | +$53.4K |
| M | 2024-11-20 | 2024-11-18 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $308.47 | -2,642 | 34.0K | -7% | -$815.0K |
| 2024-11-18 | 2024-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $309.30 | -1,249 | 34.3K | -4% | -$386.3K | |
| DM | 2024-09-03 | 2024-08-30 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $211.55 | -19.5K | 53.7K | -27% | -$4.12M |
| D | 2024-09-03 | 2024-08-30 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +7,382 | 55.0K | +15% | +$106.4K |
| 2024-08-16 | 2024-08-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $199.50 | -1,249 | 47.6K | -3% | -$249.2K | |
| D | 2024-07-02 | 2024-06-28 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +6,715 | 48.9K | +16% | +$96.8K |
| 2024-05-16 | 2024-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $0.00 | -988 | 33.1K | -3% | $0 | |
| 2024-05-16 | 2024-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $0.00 | +9,117 | 42.2K | +28% | $0 | |
| 2024-02-20 | 2024-02-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $0.00 | -988 | 34.0K | -3% | $0 | |
| D | 2024-02-12 | 2024-02-09 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $190.00 | -2,000 | 35.0K | -5% | -$380.0K |
| D | 2024-02-12 | 2024-02-09 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +2,000 | 37.0K | +6% | +$28.8K |
| D | 2024-01-05 | 2024-01-04 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +18.0K | 53.0K | +51% | +$259.6K |
| DM | 2024-01-05 | 2024-01-04 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $206.87 | -18.0K | 35.0K | -34% | -$3.72M |
| 2023-11-16 | 2023-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $209.78 | -988 | 35.0K | -3% | -$207.3K | |
| DM | 2023-09-12 | 2023-09-08+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $160.27 | -14.2K | 36.0K | -28% | -$2.27M |
| DM | 2023-09-12 | 2023-09-08+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +14.2K | 41.3K | +52% | +$204.3K |
| 2023-08-17 | 2023-08-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $132.44 | -988 | 36.0K | -3% | -$130.9K | |
| 2023-05-17 | 2023-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $0.00 | +11.1K | 37.0K | +43% | $0 | |
| 2023-05-16 | 2023-05-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $140.83 | -669 | 25.9K | -3% | -$94.2K | |
| D | 2023-03-22 | 2023-03-21 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $130.43 | -9,252 | 26.6K | -26% | -$1.21M |
| D | 2023-03-22 | 2023-03-21 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +9,252 | 35.8K | +35% | +$133.4K |
| D | 2023-03-08 | 2023-03-07 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $130.10 | -10.7K | 26.6K | -29% | -$1.40M |
| D | 2023-03-08 | 2023-03-07 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +10.7K | 37.3K | +40% | +$155.0K |
| 2023-02-17 | 2023-02-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $96.94 | -484 | 26.6K | -2% | -$46.9K | |
| 2022-11-17 | 2022-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $74.31 | -674 | 27.0K | -2% | -$50.1K | |
| 2022-08-17 | 2022-08-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $106.37 | -673 | 27.7K | -2% | -$71.6K | |
| DM | 2022-06-27 | 2022-06-24 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $103.52 | -25.4K | 29.5K | -46% | -$2.63M |
| D | 2022-06-27 | 2022-06-24 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +25.4K | 53.7K | +89% | +$365.7K |
| D | 2022-06-22 | 2022-06-21 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $102.14 | -10.5K | 28.4K | -27% | -$1.08M |
| D | 2022-06-22 | 2022-06-21 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +10.5K | 38.9K | +37% | +$151.9K |
| DM | 2022-06-10 | 2022-06-08+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $102.12 | -4,107 | 28.4K | -13% | -$419.4K |
| DM | 2022-06-10 | 2022-06-08+ | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +4,107 | 32.4K | +15% | +$59.2K |
| 2022-05-18 | 2022-05-16 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $90.97 | -75 | 28.4K | -0.3% | -$6,823 | |
| 2022-05-17 | 2022-05-13 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $0.00 | +19.1K | 28.5K | +203% | $0 | |
| D | 2022-03-02 | 2022-02-28 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $14.42 | +5,000 | 9,394 | +114% | +$72.1K |
| MA | 2022-02-24 | 2022-02-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $98.03 | -97 | 4,395 | -2% | -$9,509 |
| 2022-02-17 | 2022-02-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale | $98.01 | -97 | 4,394 | -2% | -$9,507 | |
| DM | 2021-11-17 | 2021-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | M - OptEx | $13.99 | +18.0K | 22.0K | +457% | +$252.3K |
| DM | 2021-11-17 | 2021-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | S - Sale+OE | $143.28 | -17.8K | 4,787 | -79% | -$2.56M |
| D | 2021-11-17 | 2021-11-15 | DUOL | Duolingo, Inc. | Chen Stephen C. | GC | A - Grant | $0.00 | +4,288 | 4,832 | +788% | $0 |
Purchase Sale Sale after option exercise All abbreviations