Stock chart
Ticker: DUOL Exchange: NSM


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -100.0%
330.90
USD 66,179
1,000 -100.0% 330.90 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -66.7%
330.15
USD 132,060
1,000 -66.7% 330.15 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -79.4%
328.72
USD 760,325
1,000 -79.4% 328.72 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -35.5%
327.77
USD 524,439
1,000 -35.5% 327.77 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -19.9%
326.59
USD 365,457
1,000 -19.9% 326.59 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -24.9%
325.65
USD 606,681
1,000 -24.9% 325.65 USD 100,000
2025-04-17 2025-04-15 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -6.3%
324.97
USD 164,112
1,000 -6.3% 324.97 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -58.1%
314.80
USD 31,480
1,000 -58.1% 314.80 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -36.8%
304.68
USD 30,468
1,000 -36.8% 304.68 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -42.4%
301.72
USD 60,343
1,000 -42.4% 301.72 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -29.8%
299.84
USD 59,967
1,000 -29.8% 299.84 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -30.9%
298.76
USD 89,629
1,000 -30.9% 298.76 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -32.9%
297.68
USD 141,696
1,000 -32.9% 297.68 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -34.1%
296.32
USD 221,941
1,000 -34.1% 296.32 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -31.3%
295.64
USD 295,639
1,000 -31.3% 295.64 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -27.3%
294.17
USD 353,005
1,000 -27.3% 294.17 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -13.7%
293.12
USD 205,186
1,000 -13.7% 293.12 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -20.9%
291.88
USD 393,745
1,000 -20.9% 291.88 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -11.5%
290.79
USD 244,558
1,000 -11.5% 290.79 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -11.1%
289.85
USD 263,759
1,000 -11.1% 289.85 USD 100,000
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
300 -3.5%
288.35
USD 86,504
300 -3.5% 288.35 USD 86,504
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
410 -4.6%
287.24
USD 117,768
410 -4.6% 287.24 USD 117,768
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
400 -4.3%
285.58
USD 114,231
400 -4.3% 285.58 USD 114,231
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
100 -1.1%
283.95
USD 28,395
100 -1.1% 283.95 USD 28,395
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
265 -2.7%
281.84
USD 74,687
265 -2.7% 281.84 USD 74,687
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
100 -1.0%
279.80
USD 27,980
100 -1.0% 279.80 USD 27,980
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
200 -2.0%
278.21
USD 55,641
200 -2.0% 278.21 USD 55,641
2025-04-09 2025-04-07 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
100 -1.0%
276.80
USD 27,680
100 -1.0% 276.80 USD 27,680
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
732 -0.6%
327.32
USD 239,598
732 -0.6% 327.32 USD 239,598
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
100 -0.1%
325.44
USD 32,544
100 -0.1% 325.44 USD 32,544
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
100 -0.1%
324.38
USD 32,438
100 -0.1% 324.38 USD 32,438
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
323.42
USD 64,683
200 -0.2% 323.42 USD 64,683
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
321.67
USD 64,333
200 -0.2% 321.67 USD 64,333
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
400 -0.3%
320.75
USD 128,301
400 -0.3% 320.75 USD 128,301
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
700 -0.5%
319.56
USD 223,690
700 -0.5% 319.56 USD 223,690
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
100 -0.1%
317.03
USD 31,703
100 -0.1% 317.03 USD 31,703
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
313.77
USD 62,753
200 -0.2% 313.77 USD 62,753
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
312.36
USD 62,472
200 -0.2% 312.36 USD 62,472
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
311.08
USD 62,216
200 -0.2% 311.08 USD 62,216
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
200 -0.2%
309.11
USD 61,821
200 -0.2% 309.11 USD 61,821
2025-04-02 2025-04-01 PS Planned sale

Glance Natalie

Chief Engineering Officer

Officer
150 -0.1%
308.35
USD 46,253
150 -0.1% 308.35 USD 46,253
2025-03-26 2025-03-24 PS Planned sale

Meese Robert

Chief Business Officer

Officer
5,351 -3.8%
320.02
USD 1,712,448
5,351 -3.8% 320.02 USD 1,712,448
2025-03-21 2025-03-20 PS Planned sale

Munson Gillian

Non-Executive Director
5,000 -58.6%
310.00
USD 1,550,000
5,000 -58.6% 310.00 USD 1,550,000
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
100 -58.1%
304.22
USD 30,422
100 -58.1% 304.22 USD 30,422
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
904 -84.0%
303.60
USD 274,454
904 -84.0% 303.60 USD 274,454
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
900 -45.5%
302.45
USD 272,209
900 -45.5% 302.45 USD 272,209
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,360 -40.8%
301.62
USD 410,208
1,360 -40.8% 301.62 USD 410,208
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
700 -17.3%
300.33
USD 210,233
700 -17.3% 300.33 USD 210,233
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
900 -18.2%
299.41
USD 269,471
900 -18.2% 299.41 USD 269,471
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
800 -13.9%
298.03
USD 238,427
800 -13.9% 298.03 USD 238,427
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -14.8%
297.36
USD 297,363
1,000 -14.8% 297.36 USD 297,363
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
800 -10.6%
296.04
USD 236,836
800 -10.6% 296.04 USD 236,836
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
1,000 -11.7%
295.00
USD 295,002
1,000 -11.7% 295.00 USD 295,002
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
474 -5.3%
294.00
USD 139,354
474 -5.3% 294.00 USD 139,354
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
310 -3.3%
293.22
USD 90,897
310 -3.3% 293.22 USD 90,897
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
252 -2.6%
289.94
USD 73,065
252 -2.6% 289.94 USD 73,065
2025-03-21 2025-03-19 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
500 -5.0%
289.15
USD 144,575
500 -5.0% 289.15 USD 144,575
2025-03-18 2025-03-17 PS Planned sale

Shelton James H

Non-Executive Director
2,825 -35.4%
301.11
USD 850,648
2,825 -35.4% 301.11 USD 850,648
2025-03-18 2025-03-17 PS Planned sale

Shelton James H

Non-Executive Director
17,175 -68.3%
300.61
USD 5,162,958
17,175 -68.3% 300.61 USD 5,162,958
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
100 -100.0%
301.31
USD 30,131
100 -100.0% 301.31 USD 30,131
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
600 -85.7%
300.68
USD 180,409
600 -85.7% 300.68 USD 180,409
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
400 -36.4%
299.50
USD 119,800
400 -36.4% 299.50 USD 119,800
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
821 -42.7%
298.40
USD 244,987
821 -42.7% 298.40 USD 244,987
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
800 -29.4%
297.22
USD 237,775
800 -29.4% 297.22 USD 237,775
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
300 -9.9%
295.73
USD 88,720
300 -9.9% 295.73 USD 88,720
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
500 -14.2%
294.82
USD 147,412
500 -14.2% 294.82 USD 147,412
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
859 -19.6%
294.03
USD 252,570
859 -19.6% 294.03 USD 252,570
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
400 -8.4%
292.79
USD 117,116
400 -8.4% 292.79 USD 117,116
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
1,000 -17.3%
291.05
USD 291,049
1,000 -17.3% 291.05 USD 291,049
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
918 -13.7%
290.07
USD 266,281
918 -13.7% 290.07 USD 266,281
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
300 -4.3%
289.13
USD 86,739
300 -4.3% 289.13 USD 86,739
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
500 -6.7%
287.60
USD 143,801
500 -6.7% 287.60 USD 143,801
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
202 -2.6%
286.83
USD 57,940
202 -2.6% 286.83 USD 57,940
2025-03-18 2025-03-17 PS Planned sale

von Ahn Luis

President & CEO, Co-Founder

Executive Director Large shareholder
300 -3.8%
285.46
USD 85,637
300 -3.8% 285.46 USD 85,637
2025-03-06 2025-03-05 PS Planned sale

Hacker Severin

Chief Tech Officer, Co-Founder

Executive Director Large shareholder
100 -58.1%
294.74
USD 29,474
100 -58.1% 294.74 USD 29,474
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