Duolingo (DUOL)CEO sold ~$1.06M

~$1.06M

Approx. value · 7,024 sh @ $151.42

900

Holds after · shares reported

Traded

Sep 24, 2026

Filed

Sep 28, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Aug 5, 2026Company filing · Form 8-K · ResultsReported its results
2. Aug 10, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“On August 10, 2026, the Board of Directors (the “Board”) of Duolingo, Inc. (the “Company”) increased the size of the Board from nine to ten directors and appointed Sallie Krawcheck to serve as a Class I director on the Company’s Board and as a member of its Audit, Risk and Compliance Committee ("Audit Committee"), in each case, effective immediately.”
3. Aug 17, 2026Insider · 3 peopleInsiders: 3 sales (~$662K)
4. Aug 18, 2026Insider · 1 personInsiders: 2 sales (~$212K)
5. Sep 8, 2026Insider · 1 personInsiders: 6 sales (~$1.5M)
6. Sep 14, 2026Insider · 1 personInsiders: 2 sales (~$1.2M)
7. Sep 16, 2026Insider · 1 personInsiders: 2 sales (~$4.3M)
8. Sep 21, 2026Insider · 1 personInsiders: 2 sales (~$5.6M)
9. Sep 22, 2026Insider · 1 personInsiders: 2 sales (~$549K)
10. Sep 24, 2026 · this disclosureInsiderCEO sold ~$1.06M of DUOL shares in the open market

What came next

1. Sep 24, 2026Insider · 1 personInsiders: 2 sales (~$6.0M)
2. Oct 7, 2026Insider · 1 personInsiders: 4 sales (~$16.7M)

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Duolingo

For Duolingo, OQRO holds 27 insider filings (SEC Form 4 or Form 144) and 4 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its DUOL page.

Other recent filings by Ahn Luis von, President & CEO, Co-Founder

• SEC Form 4 at Duolingo (DUOL)Oct 9, 2026
• SEC Form 4 at Duolingo (DUOL)Oct 9, 2026
• SEC Form 4 at Duolingo (DUOL)Oct 9, 2026
• SEC Form 4 at Duolingo (DUOL)Oct 9, 2026
• SEC Form 4 at Duolingo (DUOL)Sep 28, 2026

The full history of Ahn Luis von, President & CEO, Co-Founder is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Duolingo

• SEC Form 4Oct 9, 2026
• SEC Form 4Oct 9, 2026
• SEC Form 4Oct 9, 2026
• SEC Form 4Oct 9, 2026
• SEC Form 144Oct 7, 2026
• SEC Form 4Sep 28, 2026

Everything OQRO holds on this company is on its DUOL page.