Insider trading

Period: 120 months Stock: DUOL Share of holding: 50% or more × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

97 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

97 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

97 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

97 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
97 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
97 decisions over 120 months Remove this filter
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

97 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
7 Oct 2026
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 4×
$16.69M 110,046 at 151.70
100%
Sold half or more
24 Sep 2026
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 3×
$7.03M 46,682 at 150.63
100%
Sold half or more
22 Sep 2026
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 2×
$549.00K 3,614 at 151.91
100%
Sold half or more
21 Sep 2026
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 2×
$5.62M 37,366 at 150.53
100%
Sold half or more
16 Sep 2026
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 2×
$4.25M 28,292 at 150.22
100%
Sold half or more
3 Mar 2026
Shelton James H Director
Bought
$498.79K 5,000 at 99.76
108%
First buy on file
19 Nov 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 8×
$1.73M 10,000 at 172.74
99.3%
Sold half or more
4 Nov 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 10×
$2.63M 10,000 at 263.13
99.3%
Sold half or more
20 Oct 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 15×
$3.15M 10,000 at 314.72
99.3%
Sold half or more
6 Oct 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 11×
$3.22M 10,000 at 321.63
99.3%
Sold half or more
19 Sep 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 5×
$2.89M 10,000 at 288.94
99.3%
Sold half or more
5 Sep 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 8×
$2.69M 10,000 at 268.55
99.3%
Sold half or more
19 Aug 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 17×
$3.45M 10,000 at 344.56
99.3%
Sold half or more
5 Aug 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 12×
$3.44M 10,000 at 344.41
99.3%
Sold half or more
21 Jul 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 13×
$3.60M 10,000 at 360.33
99.3%
Sold half or more
7 Jul 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 9×
$3.93M 10,000 at 392.89
99.3%
Sold half or more
20 Jun 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold at will 12×
$4.71M 10,000 at 471.20
99.3%
Sold half or more
5 Jun 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 12×
$5.25M 10,000 at 525.10
99.3%
Sold half or more
19 May 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 11×
$5.25M 10,000 at 524.70
99.3%
Sold half or more
5 May 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 13×
$4.96M 10,000 at 495.95
99.3%
Sold half or more
21 Apr 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 13×
$3.14M 10,000 at 314.36
99.3%
Sold half or more
15 Apr 2025
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 7×
$2.62M 8,000 at 327.41
100%
Sold half or more
7 Apr 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 21×
$2.92M 10,000 at 292.43
99.3%
Sold half or more
20 Mar 2025
Munson Gillian Director
Sold on a plan
$1.55M 5,000 at 310.00
58.6%
Sold half or more
19 Mar 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 14×
$2.98M 10,000 at 298.25
99.3%
Sold half or more
17 Mar 2025
Shelton James H Director
Sold on a plan 2×
$6.01M 20,000 at 300.68
79.5%
Sold half or more
17 Mar 2025
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 15×
$2.35M 8,000 at 293.80
100%
Sold half or more
5 Mar 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 9×
$2.91M 10,000 at 290.54
99.3%
Sold half or more
19 Feb 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 9×
$4.34M 10,000 at 433.94
99.3%
Sold half or more
18 Feb 2025
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 12×
$3.48M 8,000 at 434.79
100%
Sold half or more
5 Feb 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 11×
$3.91M 10,000 at 391.46
99.3%
Sold half or more
21 Jan 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 14×
$3.34M 10,000 at 333.95
99.3%
Sold half or more
15 Jan 2025
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 6×
$2.57M 8,000 at 321.00
100%
Sold half or more
6 Jan 2025
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 12×
$3.36M 10,000 at 336.23
99.3%
Sold half or more
19 Dec 2024
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 9×
$3.37M 10,000 at 336.82
99.3%
Sold half or more
16 Dec 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 12×
$34.55M 99,396 at 347.57
100%
Sold half or more
13 Dec 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 10×
$15.52M 45,845 at 338.53
100%
Sold half or more
13 Dec 2024
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 10×
$14.85M 43,826 at 338.75
99.8%
Sold half or more
12 Dec 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 9×
$14.21M 41,759 at 340.29
100%
Sold half or more
12 Dec 2024
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 9×
$14.13M 41,521 at 340.29
99.8%
Sold half or more
11 Dec 2024
Hacker Severin Chief Tech Officer, Co-Founder
Sold on a plan 25×
$64.14M 188,901 at 339.54
100.0%
Sold half or more
1 Aug 2024
Hacker Severin Chief Tech Officer, Co-Founder · indirect
Sold on a plan 9×
$1.66M 10,000 at 166.49
100%
Sold half or more
1 Jul 2024
Hacker Severin Chief Tech Officer, Co-Founder · indirect
Sold on a plan 9×
$1.99M 10,000 at 198.61
100%
Sold half or more
28 Jun 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan
$215.00K 1,000 at 215.00
100%
Sold half or more
14 Jun 2024
Clemens Sara Director
Sold on a plan 2×
$2.00M 10,000 at 200.29
73.7%
Sold half or more
3 Jun 2024
Hacker Severin Chief Tech Officer, Co-Founder · indirect
Sold on a plan 9×
$1.96M 10,000 at 196.39
100%
Sold half or more
1 May 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 12×
$2.68M 12,000 at 223.51
100%
Sold half or more
1 May 2024
Hacker Severin Chief Tech Officer, Co-Founder · indirect
Sold on a plan 12×
$2.23M 10,000 at 223.47
100%
Sold half or more
1 Apr 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 6×
$2.62M 12,000 at 218.40
100%
Sold half or more
1 Apr 2024
Hacker Severin Chief Tech Officer, Co-Founder · indirect
Sold on a plan 5×
$2.18M 10,000 at 218.42
100%
Sold half or more
Showing 1–50 of 97. Page 1 of 2 Older →