PAGEInsider
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| DUOL | Chen Stephen C. | General Counsel | May 18 '26 | Sale | 113.61 | 1,977 | 224,603 | 52,807 | May 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | May 15 '26 | Sale | 112.16 | 820 | 91,971 | 54,784 | May 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | May 12 '26 | Option Exercise | 14.42 | 1,296 | 18,688 | 31,193 | May 13 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Feb 18 '26 | Sale | 113.26 | 1,901 | 215,313 | 30,545 | Feb 20 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Feb 17 '26 | Sale | 110.06 | 896 | 98,614 | 32,446 | Feb 20 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Dec 29 '25 | Option Exercise | 14.42 | 3,600 | 51,912 | 33,342 | Dec 30 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Nov 18 '25 | Sale | 175.87 | 1,514 | 266,265 | 31,542 | Nov 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Nov 17 '25 | Sale | 177.95 | 1,282 | 228,132 | 33,056 | Nov 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Sep 18 '25 | Option Exercise | 14.42 | 3,400 | 49,028 | 34,338 | Sep 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Aug 26 '25 | Sale | 321.36 | 1,515 | 486,860 | 32,638 | Aug 28 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | Aug 15 '25 | Sale | 329.03 | 1,282 | 421,816 | 34,153 | Aug 18 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | May 16 '25 | Sale | 526.94 | 2,635 | 1,388,480 | 36,185 | May 19 12:00 AM |
| DUOL | Chen Stephen C. | General Counsel | May 15 '25 | Sale | 531.71 | 1,257 | 668,359 | 38,820 | May 16 12:00 AM |