Duolingo, Inc.
US ˙ NasdaqGS ˙ US26603R1068

SecurityDUOL / Duolingo, Inc.
InsiderSeverin Hacker
This page shows the track record and history of Hacker Severin insider trades in Duolingo, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Severin Hacker in DUOL / Duolingo, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

DUOL / Duolingo, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Severin Hacker in DUOL / Duolingo, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2025-07-21 200 370.0500 200 370.0500 74,010 46 271.1800 -19,774 -26.72
2025-06-20 272 473.4595 272 473.4595 128,781
2025-06-20 500 474.6529 500 474.6529 237,326
2025-06-20 700 476.4716 700 476.4716 333,530
2025-06-20 400 478.1200 400 478.1200 191,248
2025-06-20 200 481.3500 200 481.3500 96,270
2023-09-01 400 146.0654 400 146.0654 58,426
2023-09-01 1,000 147.3152 1,000 147.3152 147,315
2023-09-01 3,779 148.4036 3,779 148.4036 560,817
2023-09-01 3,711 149.2465 3,711 149.2465 553,854
2023-09-01 500 149.9442 500 149.9442 74,972
2023-09-01 410 151.5278 410 151.5278 62,126
2023-09-01 200 152.3550 200 152.3550 30,471
2021-12-08 36 110.0100 36 110.0100 3,960
2021-07-30 50,000 102.0000 50,000 102.0000 5,100,000

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

DUOL / Duolingo, Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 271.5717 -200 -54 72
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 271.0457 -1,647 -446 272
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 269.8742 -1,600 -432 1,919
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 268.9167 -1,956 -526 3,519
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 267.9315 -2,100 -563 5,475
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 266.8952 -849 -227 7,575
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 265.9512 -1,148 -305 8,424
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 264.7464 -500 -132 9,572
2025-09-09 2025-09-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-08-22 2025-08-20 4 Hacker Severin DUOL Class A Common Stock G - Gift I -10,000 0
2025-08-22 2025-08-20 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 363.0500 -200 -73 72
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 359.3000 -200 -72 272
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 357.6700 -100 -36 472
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 354.8850 -400 -142 572
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 354.0767 -300 -106 972
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 352.4000 -200 -70 1,272
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 351.2900 -400 -141 1,472
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 349.2800 -100 -35 1,872
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 348.8250 -400 -140 1,972
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 347.4803 -500 -174 2,372
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 346.1450 -600 -208 2,872
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 345.0200 -300 -104 3,472
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.8200 -300 -103 3,772
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.9974 -1,318 -451 4,072
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.9173 -1,979 -675 5,390
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.0274 -1,700 -578 7,369
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.1480 -1,003 -340 9,069
2025-08-21 2025-08-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 355.0625 -400 -142 72
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 354.4462 -931 -330 472
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 352.7450 -200 -71 1,403
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 351.0750 -200 -70 1,603
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 349.2467 -300 -105 1,803
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 346.7300 -200 -69 2,103
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 344.9857 -1,133 -391 2,303
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.4317 -600 -206 3,436
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.5619 -2,205 -755 4,036
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.5468 -1,330 -454 6,241
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.2760 -2,098 -714 7,571
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.3173 -403 -137 9,669
2025-08-07 2025-08-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 370.0500 -200 -74 72
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 367.6100 -100 -37 272
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 366.3167 -300 -110 372
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 365.4942 -1,200 -439 672
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 364.5547 -1,580 -576 1,872
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 363.4042 -620 -225 3,452
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 361.8700 -200 -72 4,072
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 360.5351 -373 -134 4,272
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 359.6474 -854 -307 4,645
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 358.3905 -300 -108 5,499
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 357.4734 -1,100 -393 5,799
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 356.2033 -728 -259 6,899
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 355.3063 -2,445 -869 7,627
2025-07-22 2025-07-21 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 396.7317 -600 -238 72
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 396.0873 -1,202 -476 672
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 394.9312 -800 -316 1,874
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 393.7848 -1,400 -551 2,674
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 392.7584 -2,000 -786 4,074
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 391.7132 -1,557 -610 6,074
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 390.8261 -1,741 -680 7,631
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 388.5641 -500 -194 9,372
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 386.9050 -200 -77 9,872
2025-07-09 2025-07-07 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 481.3500 -200 -96 72
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 478.1200 -400 -191 272
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 476.4716 -700 -334 672
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 474.6529 -500 -237 1,372
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 473.4595 -272 -129 1,872
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 472.5353 -928 -439 2,144
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 471.4536 -1,199 -565 3,072
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 470.3874 -1,401 -659 4,271
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 469.5542 -2,183 -1,025 5,672
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 468.3994 -1,017 -476 7,855
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 467.4567 -900 -421 8,872
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock S - Sale D 466.4291 -300 -140 9,772
2025-06-23 2025-06-20 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-06-10 2025-06-06 4 Hacker Severin DUOL Class A Common Stock G - Gift I -60,000 0
2025-06-10 2025-06-06 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 60,000 60,000
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 531.1200 -100 -53 72
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 530.0920 -500 -265 172
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 529.0119 -600 -317 672
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 527.8521 -900 -475 1,272
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 526.8599 -1,400 -738 2,172
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 525.9533 -500 -263 3,572
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 524.9195 -1,200 -630 4,072
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 523.7828 -2,804 -1,469 5,272
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 522.7689 -996 -521 8,076
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 521.6038 -500 -261 9,072
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 520.0500 -200 -104 9,572
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 519.1537 -300 -156 9,772
2025-06-09 2025-06-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 530.6400 -100 -53 72
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 528.4283 -600 -317 172
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 527.6281 -1,600 -844 772
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 526.6059 -1,700 -895 2,372
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 525.5654 -2,000 -1,051 4,072
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 524.5782 -700 -367 6,072
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 523.0675 -517 -270 6,772
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 522.0499 -874 -456 7,289
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 521.1100 -300 -156 8,163
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 519.7764 -1,509 -784 8,463
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 517.7400 -100 -52 9,972
2025-05-20 2025-05-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 502.2625 -400 -201 72
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 501.3422 -1,003 -503 472
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 500.1230 -1,000 -500 1,475
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 499.1150 -417 -208 2,475
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 497.8175 -498 -248 2,892
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 496.8113 -822 -408 3,390
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 495.7276 -1,640 -813 4,212
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 494.5878 -855 -423 5,852
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 493.8671 -1,165 -575 6,707
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 492.6325 -1,200 -591 7,872
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 491.4433 -600 -295 9,072
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 488.9500 -200 -98 9,672
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 480.9700 -200 -96 9,872
2025-05-07 2025-05-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 323.8763 -400 -130 72
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 321.1022 -244 -78 472
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 320.0328 -356 -114 716
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 318.8471 -100 -32 1,072
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 317.7950 -247 -78 1,172
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 317.2372 -299 -95 1,419
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 316.0789 -2,057 -650 1,718
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 314.9212 -1,197 -377 3,775
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 313.8615 -900 -282 4,972
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 312.7423 -1,100 -344 5,872
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 311.8416 -900 -281 6,972
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 310.5770 -1,000 -311 7,872
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 309.7287 -1,200 -372 8,872
2025-04-23 2025-04-21 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 314.8000 -100 -31 72
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 304.6800 -100 -30 172
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 301.7150 -200 -60 272
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 299.8350 -200 -60 472
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 298.7633 -300 -90 672
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 297.6802 -476 -142 972
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 296.3159 -749 -222 1,448
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 295.6390 -1,000 -296 2,197
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 294.1710 -1,200 -353 3,197
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 293.1229 -700 -205 4,397
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 291.8794 -1,349 -394 5,097
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 290.7945 -841 -245 6,446
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 289.8453 -910 -264 7,287
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 288.3467 -300 -87 8,197
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 287.2398 -410 -118 8,497
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 285.5775 -400 -114 8,907
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 283.9500 -100 -28 9,307
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 281.8366 -265 -75 9,407
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 279.8000 -100 -28 9,672
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 278.2050 -200 -56 9,772
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock S - Sale D 276.8000 -100 -28 9,972
2025-04-09 2025-04-07 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 10,000 381 10,072
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 304.2200 -100 -30 72
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 303.5998 -904 -274 172
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 302.4539 -900 -272 1,076
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 301.6233 -1,360 -410 1,976
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 300.3325 -700 -210 3,336
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 299.4119 -900 -269 4,036
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 298.0334 -800 -238 4,936
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 297.3633 -1,000 -297 5,736
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 296.0449 -800 -237 6,736
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 295.0020 -1,000 -295 7,536
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 293.9951 -474 -139 8,536
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 293.2176 -310 -91 9,010
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 289.9400 -252 -73 9,320
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 289.1496 -500 -145 9,572
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 38.0800 9,748 371 10,072
2025-03-21 2025-03-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 14.4200 252 4 324
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 294.7400 -100 -29 72
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 293.8583 -600 -176 172
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 292.9057 -1,300 -381 772
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 291.9574 -1,800 -526 2,072
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 291.0011 -1,900 -553 3,872
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 289.9814 -1,500 -435 5,772
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 288.9492 -1,200 -347 7,272
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 287.7500 -500 -144 8,472
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 286.1630 -1,100 -315 8,972
2025-03-06 2025-03-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 14.4200 10,000 144 10,072
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 438.9767 -300 -132 72
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 437.8022 -400 -175 372
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 436.5152 -538 -235 772
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 435.4631 -1,562 -680 1,310
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 434.1985 -2,307 -1,002 2,872
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 433.2233 -2,702 -1,171 5,179
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 432.3655 -809 -350 7,881
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 431.1926 -826 -356 8,690
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 430.3733 -556 -239 9,516
2025-02-21 2025-02-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 14.4200 10,000 144 10,072
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 409.4000 -100 -41 72
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 407.2650 -200 -81 172
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 405.9675 -198 -80 372
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 402.5200 -200 -81 570
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 395.0500 -100 -40 770
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 392.1408 -3,453 -1,354 870
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 391.0129 -1,109 -434 4,323
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 389.9061 -1,405 -548 5,432
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 388.9636 -1,513 -589 6,837
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 388.0095 -1,422 -552 8,350
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock S - Sale D 386.6767 -300 -116 9,772
2025-02-06 2025-02-05 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 10,000 10,072
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 347.1450 -200 -69 72
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.8700 -100 -34 272
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.8233 -300 -102 372
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.5966 -481 -162 672
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.0337 -1,338 -451 1,153
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 335.3730 -874 -293 2,491
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 334.5432 -1,507 -504 3,365
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 333.3267 -2,100 -700 4,872
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 332.3255 -914 -304 6,972
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 331.0778 -686 -227 7,886
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 330.3875 -400 -132 8,572
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 329.2375 -400 -132 8,972
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 327.6153 -400 -131 9,372
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock S - Sale D 327.0587 -300 -98 9,772
2025-01-23 2025-01-21 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 14.4200 10,000 144 10,072
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 347.0400 -100 -35 72
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 344.0350 -200 -69 172
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.8200 -100 -34 372
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.6100 -100 -34 472
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.6692 -758 -258 572
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.9518 -742 -252 1,330
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.7489 -300 -102 2,072
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.1266 -400 -135 2,372
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 336.4549 -1,737 -584 2,772
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 335.4012 -1,541 -517 4,509
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 334.1849 -1,722 -575 6,050
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock S - Sale D 333.3370 -2,300 -767 7,772
2025-01-07 2025-01-06 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 10,000 10,072
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.8600 -200 -69 72
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.6779 -146 -50 272
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.0333 -300 -102 418
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.0605 -380 -129 718
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.2777 -1,464 -495 1,098
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.4026 -1,455 -491 2,562
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 336.5360 -2,116 -712 4,017
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 335.3390 -3,387 -1,136 6,133
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock S - Sale D 334.2101 -552 -184 9,520
2024-12-20 2024-12-19 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 10,000 10,072
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 344.5400 -300 -103 72
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.4950 -800 -275 372
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.6251 -2,000 -685 1,172
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.1787 -1,597 -545 3,172
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.1017 -4,385 -1,491 4,769
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.1531 -10,414 -3,532 9,154
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.1313 -13,457 -4,550 19,568
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.3277 -8,235 -2,778 33,025
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 336.2619 -1,934 -650 41,260
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock S - Sale D 335.1351 -704 -236 43,194
2024-12-16 2024-12-13 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 43,826 43,898
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 352.7200 -1,500 -529 72
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 351.1600 -1,064 -374 1,572
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 344.2585 -23,975 -8,254 2,636
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.3779 -27,536 -9,455 26,611
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.4759 -39,297 -13,458 54,147
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.4177 -14,026 -4,789 93,444
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.3457 -17,469 -5,945 107,470
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.3120 -6,781 -2,301 124,939
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.1120 -1,311 -443 131,720
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.3306 -3,992 -1,347 133,031
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 336.0707 -11,554 -3,883 137,023
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 335.1055 -7,683 -2,575 148,577
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 334.2356 -8,370 -2,798 156,260
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 333.1642 -4,224 -1,407 164,630
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 332.0945 -2,110 -701 168,854
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 331.1279 -1,501 -497 170,964
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 330.2398 -904 -299 172,465
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 329.0232 -2,389 -786 173,369
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 328.0988 -1,927 -632 175,758
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 326.8021 -3,327 -1,087 177,685
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 325.7078 -2,257 -735 181,012
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 324.8834 -1,700 -552 183,269
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 323.4003 -2,482 -803 184,969
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 322.7295 -622 -201 187,451
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock S - Sale D 321.2915 -900 -289 188,073
2024-12-13 2024-12-11 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 188,901 188,973
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 344.7200 -269 -93 72
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 343.8581 -1,562 -537 341
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 342.8844 -6,015 -2,062 1,903
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 341.9440 -3,375 -1,154 7,918
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 340.9618 -4,922 -1,678 11,293
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 339.6708 -13,867 -4,710 16,215
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 338.8701 -6,879 -2,331 30,082
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 337.9695 -2,470 -835 36,961
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock S - Sale D 336.9091 -2,162 -728 39,431
2024-12-13 2024-12-12 4 Hacker Severin DUOL Class A Common Stock C - Conversion D 41,521 41,593
2024-12-02 2024-11-27 4 Hacker Severin DUOL Class A Common Stock G - Gift I -3,000 0
2024-12-02 2024-11-12 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 3,000 3,000
2024-08-26 2024-08-26 4 Hacker Severin DUOL Class A Common Stock G - Gift I -15,000 0
2024-08-26 2024-08-22 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 15,000 15,000
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 173.1800 -100 -17 0
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 172.5334 -274 -47 100
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 171.6020 -926 -159 374
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 169.1639 -1,201 -203 1,300
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 168.1220 -899 -151 2,501
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 166.9506 -700 -117 3,400
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 165.9554 -400 -66 4,100
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 164.4886 -4,600 -757 4,500
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 163.5797 -900 -147 9,100
2024-08-02 2024-08-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 205.1861 -200 -41 0
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 203.4650 -4 -1 200
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 202.6184 -568 -115 204
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 201.7303 -787 -159 772
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 200.5644 -2,159 -433 1,559
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 199.8060 -1,282 -256 3,718
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 198.1773 -800 -159 5,000
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 196.5585 -1,313 -258 5,800
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 195.5601 -2,887 -565 7,113
2024-07-02 2024-07-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 200.5900 -100 -20 0
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 200.0884 -1,495 -299 100
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 199.0346 -1,602 -319 1,595
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 197.8685 -1,300 -257 3,197
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 196.9551 -1,204 -237 4,497
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 195.8620 -300 -59 5,701
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 194.5097 -600 -117 6,001
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 193.4425 -1,799 -348 6,601
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 192.4973 -1,600 -308 8,400
2024-06-05 2024-06-03 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 231.6100 -200 -46 0
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 230.4833 -600 -138 200
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 229.5167 -600 -138 800
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 228.4088 -200 -46 1,400
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 226.8775 -400 -91 1,600
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 225.9933 -900 -203 2,000
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 224.4300 -300 -67 2,900
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 223.6709 -1,100 -246 3,200
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 222.8210 -1,200 -267 4,300
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 221.5062 -809 -179 5,500
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 220.4618 -2,491 -549 6,309
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 219.4861 -1,200 -263 8,800
2024-05-03 2024-05-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 220.5756 -629 -139 0
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 219.6661 -1,898 -417 629
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 218.6578 -3,653 -799 2,527
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 217.7033 -2,020 -440 6,180
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 216.6502 -1,800 -390 8,200
2024-04-02 2024-04-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-03-15 2024-03-13 4 Hacker Severin DUOL Class A Common Stock G - Gift I -10,000 0
2024-03-15 2024-03-13 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 237.2045 -1,100 -261 0
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 236.3077 -1,888 -446 1,100
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 235.4189 -3,000 -706 2,988
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 234.4431 -2,449 -574 5,988
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 233.2877 -963 -225 8,437
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 231.9783 -600 -139 9,400
2024-03-04 2024-03-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 181.4577 -94 -17 0
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 180.8382 -1,773 -321 94
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 179.8149 -2,644 -475 1,867
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 178.7007 -859 -154 4,511
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 177.6947 -2,300 -409 5,370
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 176.6648 -1,630 -288 7,670
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 175.6687 -700 -123 9,300
2024-02-05 2024-02-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 222.7000 -300 -67 0
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 218.9075 -400 -88 300
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 217.4602 -413 -90 700
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 215.1716 -589 -127 1,113
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 214.3233 -4,530 -971 1,702
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 213.4129 -2,069 -442 6,232
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 212.2453 -600 -127 8,301
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 211.1344 -799 -169 8,901
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 210.1893 -300 -63 9,700
2024-01-03 2024-01-02 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 214.8349 -1,259 -270 0
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 214.1341 -3,113 -667 1,259
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 213.3136 -2,726 -581 4,372
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 212.0256 -900 -191 7,098
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 210.6140 -500 -105 7,998
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 209.5590 -802 -168 8,498
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 208.4229 -700 -146 9,300
2023-12-04 2023-12-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 148.2393 -1,199 -178 0
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 147.5850 -1,717 -253 1,199
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 146.5884 -3,298 -483 2,916
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 145.7196 -3,186 -464 6,214
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 144.7440 -600 -87 9,400
2023-11-02 2023-11-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 168.2600 -100 -17 0
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 166.9920 -500 -83 100
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 165.6687 -4,710 -780 600
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 164.8923 -3,373 -556 5,310
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock S - Sale I 163.8310 -1,317 -216 8,683
2023-10-05 2023-10-02 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-09-19 2023-09-15 4 Hacker Severin DUOL Class A Common Stock G - Gift I -3,000 0
2023-09-19 2023-08-30 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 3,000 3,000
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 152.3550 -200 -30 0
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 151.5278 -410 -62 200
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 149.9442 -500 -75 610
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 149.2465 -3,711 -554 1,110
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 148.4036 -3,779 -561 4,821
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 147.3152 -1,000 -147 8,600
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 146.0654 -400 -58 9,600
2023-09-06 2023-09-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-05-02 2023-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 139.2480 -3,705 -516 0
2023-05-02 2023-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 138.4638 -3,826 -530 3,705
2023-05-02 2023-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 137.3857 -969 -133 7,531
2023-05-02 2023-05-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 136.4548 -1,500 -205 8,500
2023-05-02 2023-05-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-04-04 2023-04-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 143.1143 -2,022 -289 0
2023-04-04 2023-04-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 142.3589 -5,978 -851 2,022
2023-04-04 2023-04-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 141.4297 -1,300 -184 8,000
2023-04-04 2023-04-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 140.4257 -700 -98 9,300
2023-04-04 2023-04-03 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 110.9198 -1,957 -217 0
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 109.8936 -1,572 -173 1,957
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 108.6841 -2,825 -307 3,529
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 107.4598 -445 -48 6,354
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 106.2407 -1,601 -170 6,799
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 105.1458 -1,200 -126 8,400
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 103.7500 -100 -10 9,600
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 102.8300 -300 -31 9,700
2023-03-02 2023-03-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 97.9422 -357 -35 0
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 97.2430 -3,021 -294 357
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 96.1875 -400 -38 3,378
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 95.0150 -2,803 -266 3,778
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 94.2734 -3,419 -322 6,581
2023-02-02 2023-02-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2023-01-27 2022-12-12 4 Hacker Severin DUOL Class A Common Stock G - Gift I -3,500 0
2023-01-27 2022-12-12 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 3,500 3,500
2023-01-11 2023-01-10 4 Hacker Severin DUOL Class A Common Stock S - Sale I 75.0741 -7,200 -541 0
2023-01-11 2023-01-10 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 7,200 7,200
2023-01-11 2023-01-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 75.0522 -2,800 -210 0
2023-01-11 2023-01-09 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 2,800 2,800
2022-12-15 2022-12-14 4 Hacker Severin DUOL Class A Common Stock S - Sale I 75.5032 -10,000 -755 0
2022-12-15 2022-12-14 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2022-11-02 2022-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 83.2471 -698 -58 0
2022-11-02 2022-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 82.2429 -2,190 -180 698
2022-11-02 2022-11-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 81.5370 -7,112 -580 2,888
2022-11-02 2022-11-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2022-10-04 2022-10-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 97.6237 -2,404 -235 0
2022-10-04 2022-10-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 96.7713 -4,688 -454 2,404
2022-10-04 2022-10-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 95.6748 -1,908 -183 7,092
2022-10-04 2022-10-03 4 Hacker Severin DUOL Class A Common Stock S - Sale I 94.5189 -1,000 -95 9,000
2022-10-04 2022-10-03 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2022-09-06 2022-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 93.4624 -1,039 -97 0
2022-09-06 2022-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 92.8228 -2,828 -263 1,039
2022-09-06 2022-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 91.9077 -3,432 -315 3,867
2022-09-06 2022-09-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 91.0251 -2,701 -246 7,299
2022-09-06 2022-09-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class B Common Stock S - Sale I 95.7567 -300 -29 0
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class B Common Stock S - Sale I 94.9141 -4,070 -386 300
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class B Common Stock S - Sale I 94.2091 -3,830 -361 4,370
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class B Common Stock S - Sale I 92.9495 -1,400 -130 8,200
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class B Common Stock S - Sale I 91.5272 -400 -37 9,600
2022-08-02 2022-08-01 4 Hacker Severin DUOL Class A Common Stock M - Exercise I 10,000 10,000
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 94.9667 -1,225 -116 0
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 94.0454 -971 -91 1,225
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 93.0906 -764 -71 2,196
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 91.7596 -1,103 -101 2,960
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 90.1661 -2,430 -219 4,063
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 89.4374 -3,207 -287 6,493
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 87.7533 -300 -26 9,700
2022-07-05 2022-07-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 10,000 10,000
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 99.6191 -2,987 -298 0
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 99.0408 -9,008 -892 2,987
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 98.0691 -3,962 -389 11,995
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 97.0545 -2,243 -218 15,957
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 95.6073 -1,400 -134 18,200
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock S - Sale I 94.9695 -400 -38 19,600
2022-06-27 2022-06-23 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 20,000 20,000
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 92.9700 -300 -28 0
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 92.3495 -7,377 -681 300
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 91.4760 -8,314 -761 7,677
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 90.3220 -1,500 -135 15,991
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 88.9836 -721 -64 17,491
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock S - Sale I 88.2994 -1,788 -158 18,212
2022-06-21 2022-06-16 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 20,000 20,000
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 101.0818 -2,000 -202 0
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 100.1277 -800 -80 2,000
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 98.9828 -3,210 -318 2,800
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 98.0905 -5,180 -508 6,010
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 97.0940 -4,418 -429 11,190
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock S - Sale I 96.0739 -4,392 -422 15,608
2022-06-13 2022-06-09 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 20,000 20,000
2022-06-03 2022-06-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 84.1160 -6,113 -514 0
2022-06-03 2022-06-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 83.2496 -4,507 -375 6,113
2022-06-03 2022-06-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 82.1621 -7,321 -602 10,620
2022-06-03 2022-06-01 4 Hacker Severin DUOL Class A Common Stock S - Sale I 81.2953 -2,059 -167 17,941
2022-06-03 2022-06-01 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 20,000 20,000
2022-02-10 2021-12-14 4 Hacker Severin DUOL Class B Common Stock C - Conversion I -6,000 3,371,417
2022-02-10 2021-12-14 4 Hacker Severin DUOL Class A Common Stock G - Gift I -6,000 0
2022-02-10 2021-12-14 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 6,000 6,000
2021-12-10 2021-12-08 4 Hacker Severin DUOL Restricted Stock Units M - Exercise D -108 0
2021-12-10 2021-12-08 4 Hacker Severin DUOL Class A Common Stock S - Sale D 110.0100 -36 -4 72
2021-12-10 2021-12-08 4 Hacker Severin DUOL Class A Common Stock M - Exercise D 108 108
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class B Common Stock C - Conversion I -30,000 3,377,417
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 151.0056 -225 -34 0
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 150.0879 -900 -135 225
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 149.3067 -600 -90 1,125
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 148.0449 -2,870 -425 1,725
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 147.1009 -2,225 -327 4,595
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 146.1814 -7,471 -1,092 6,820
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 145.2195 -5,729 -832 14,291
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 143.4675 -400 -57 20,020
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 142.6778 -314 -45 20,420
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 141.2954 -1,579 -223 20,734
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 140.3553 -3,811 -535 22,313
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 139.4305 -1,422 -198 26,124
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock S - Sale I 138.1631 -2,454 -339 27,546
2021-11-17 2021-11-15 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 30,000 30,000
2021-09-22 2021-08-15 4 Hacker Severin DUOL Restricted Stock Units A - Award D 108 108
2021-08-02 2021-07-30 4 Hacker Severin DUOL Class B Common Stock C - Conversion I -50,000 3,407,417
2021-08-02 2021-07-30 4 Hacker Severin DUOL Class A Common Stock S - Sale I 102.0000 -50,000 -5,100 0
2021-08-02 2021-07-30 4 Hacker Severin DUOL Class A Common Stock C - Conversion I 50,000 50,000
P
Åpent marked eller private kjøp av ikke-derivat eller derivat sikkerhet.
S
Åpent marked eller private kjøp av ikke-derivat eller derivat sikkerhet.
A
Bevilgning, tildeling eller andre oppkjøp av verdipapirer fra selskapet (slik som en opsjon)
C
Konvertering av derivat
D
Salg eller overføring av verdipapirer tilbake til selskapet
F
Betaling av utøvelseskurs eller skatteplikt ved å bruke deler av verdipapirer mottat fra selskapet
G
Gave av verdipapirer fra eller til insidere
K
Aksjebytting og lignende sikringsavtaler
M
Øvelse eller konvertering av derivatverdipapir mottatt fra selskapet (for eksempel en opsjon)
V
En transaksjon frivilig rapportert på Skjema 4
J
Annet (med en fotnote som beskriver transaksjonen)