Insider trading

Period: 120 months Stock: DUOL Role: CEO × + Add filter Clear all
Views & alerts

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When

Period

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

29 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.

29 decisions over 120 months Remove this filter
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.

29 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.

29 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.
29 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
29 decisions over 120 months
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.

29 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
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
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
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
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
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
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
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
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 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
11 Mar 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 8×
$4.85M 22,023 at 220.26
100%
Sold half or more
8 Mar 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 2×
$3.88M 18,004 at 215.46
100%
Sold half or more
7 Mar 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan
$21.50K 100 at 215.00
100%
Sold half or more
6 Mar 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 3×
$490.08K 2,273 at 215.61
100%
Sold half or more
5 Mar 2024
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 13×
$2.83M 13,600 at 208.34
100%
Sold half or more
9 Nov 2023
von Ahn Luis President & CEO, Co-Founder
Sold on a plan
$200.00K 1,000 at 200.00
100%
Sold half or more
14 Jun 2023
von Ahn Luis President & CEO, Co-Founder
Sold on a plan 5×
$5.11M 33,334 at 153.17
100%
Sold half or more
3 Mar 2023
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated 8×
$18.17M 153,514 at 118.34
100%
Sold half or more
2 Jun 2022
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated 7×
$6.60M 75,385 at 87.58
100%
Sold half or more
1 Jun 2022
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated 4×
$4.53M 54,615 at 82.97
42.0%
15 Feb 2022
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated 2×
$61.21K 600 at 102.02
100%
Sold half or more
10 Feb 2022
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated
$210.67K 2,062 at 102.17
100%
Sold half or more
9 Feb 2022
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated
$71.40K 700 at 102.00
100%
Sold half or more
16 Dec 2021
von Ahn Luis President & CEO, Co-Founder
Sold, plan not stated 4×
$1.26M 12,000 at 105.04
100%
Sold half or more
Showing 1–29 of 29.