Chen Stephen C.
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Chen Stephen C.. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| DUOL | General Counsel | Option Exercise | 1,800 | $14.42 | $25,956 | Dec 29, 2025 |
| DUOL | General Counsel | Sale | 120 | $173.97 | $20,876 | Nov 18, 2025 |
| DUOL | General Counsel | Option Exercise | 1,700 | $14.42 | $24,514 | Sep 18, 2025 |
| DUOL | General Counsel | Sale | 1,515 | $321.36 | $486,860 | Aug 26, 2025 |
| DUOL | General Counsel | Gift | 750 | — | — | Aug 15, 2025 |
| DUOL | General Counsel | Sale | 1,282 | $329.03 | $421,816 | Aug 15, 2025 |
| DUOL | General Counsel | Sale | 100 | $530.22 | $53,022 | May 16, 2025 |
| DUOL | General Counsel | Award / Grant | 5,443 | — | — | May 15, 2025 |
| DUOL | General Counsel | Sale | 1,166 | $435.00 | $507,210 | Feb 18, 2025 |
| DUOL | General Counsel | Option Exercise | 1,331 | $14.42 | $19,193 | Feb 6, 2025 |
| DUOL | General Counsel | Option Exercise | 3,700 | $14.42 | $53,354 | Dec 19, 2024 |
| DUOL | General Counsel | Sale | 275 | $307.04 | $84,436 | Nov 18, 2024 |
| DUOL | General Counsel | Sale | 1,249 | $309.30 | $386,316 | Nov 15, 2024 |
| DUOL | General Counsel | Option Exercise | 7,382 | $14.42 | $106,448 | Aug 30, 2024 |
| DUOL | General Counsel | Sale | 1,249 | $199.50 | $249,176 | Aug 15, 2024 |
| DUOL | General Counsel | Option Exercise | 6,715 | $14.42 | $96,830 | Jun 28, 2024 |
| DUOL | General Counsel | Award / Grant | 9,117 | — | — | May 15, 2024 |
| DUOL | General Counsel | Sale | 988 | — | — | Feb 15, 2024 |
| DUOL | General Counsel | Option Exercise | 2,000 | $14.42 | $28,840 | Feb 9, 2024 |
| DUOL | General Counsel | Sale | 365 | $210.29 | $76,756 | Jan 4, 2024 |
| DUOL | General Counsel | Sale | 988 | $209.78 | $207,263 | Nov 15, 2023 |
| DUOL | General Counsel | Sale | 100 | $161.00 | $16,100 | Sep 8, 2023 |
| DUOL | General Counsel | Sale | 988 | $132.44 | $130,851 | Aug 15, 2023 |
| DUOL | General Counsel | Sale | 669 | $140.83 | $94,215 | May 15, 2023 |
| DUOL | General Counsel | Award / Grant | 11,125 | — | — | May 15, 2023 |
| DUOL | General Counsel | Option Exercise | 9,252 | $14.42 | $133,414 | Mar 21, 2023 |
| DUOL | General Counsel | Option Exercise | 10,748 | $14.42 | $154,986 | Mar 7, 2023 |
| DUOL | General Counsel | Sale | 484 | $96.94 | $46,919 | Feb 15, 2023 |
| DUOL | General Counsel | Sale | 674 | $74.31 | $50,085 | Nov 15, 2022 |
| DUOL | General Counsel | Sale | 673 | $106.37 | $71,587 | Aug 15, 2022 |
| DUOL | General Counsel | Sale | 6,201 | $104.50 | $648,005 | Jun 24, 2022 |
| DUOL | General Counsel | Option Exercise | 10,535 | $14.42 | $151,915 | Jun 21, 2022 |
| DUOL | General Counsel | Option Exercise | 4,007 | $14.42 | $57,781 | Jun 9, 2022 |
| DUOL | General Counsel | Sale | 75 | $90.97 | $6,823 | May 16, 2022 |
| DUOL | General Counsel | Award / Grant | 19,065 | — | — | May 13, 2022 |
| DUOL | General Counsel | Option Exercise | 5,000 | $14.42 | $72,100 | Feb 28, 2022 |
| DUOL | General Counsel | Sale | 97 | $98.01 | $9,507 | Feb 15, 2022 |
| DUOL | General Counsel | Sale | 18 | $99.79 | $1,796 | Feb 15, 2022 |
| DUOL | General Counsel | Award / Grant | 4,288 | — | — | Nov 15, 2021 |