Form4insider filings, from the source

SEC Form 4 · accession 0001628280-26-063251

Duolingo, Inc. · DUOL

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Luis von Ahn
Officer — President & CEO, Co-Founder · Director · 10% Owner
Period of report
Sep 21, 2026
Accepted (ET)
Sep 23, 2026 · 5:14 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001562088

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Class A Common StockSep 21, 2026C27,960$14.42A27,960D
Class A Common StockSep 21, 2026C9,406$38.08A37,366D
Class A Common StockF2Sep 21, 2026S33,257$150.4641D4,109D
Class A Common StockF3Sep 21, 2026S4,109$151.0699D0D
Class A Common StockSep 22, 2026C3,614$38.08A3,614D
Class A Common StockSep 22, 2026S200$150.00D3,414D
Class A Common StockSep 22, 2026S3,414$152.02D0D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Stock Option (Right to Buy)F4$14.42Sep 21, 2026M27,960D—Dec 12, 2029Class B Common Stock27,9600D
Class B Common StockF5—Sep 21, 2026C27,960A——Class A Common Stock27,9603,396,080D
Class B Common StockF5—Sep 21, 2026C27,960D——Class A Common Stock27,9603,368,120D
Stock Option (Right to Buy)F4$38.08Sep 21, 2026M9,406D—Dec 2, 2030Class B Common Stock9,406160,342D
Class B Common StockF5—Sep 21, 2026C9,406A——Class A Common Stock9,4063,377,526D
Class B Common StockF5—Sep 21, 2026C9,406D——Class A Common Stock9,4063,368,120D
Stock Option (Right to Buy)F4$38.08Sep 22, 2026M3,614D—Dec 2, 2030Class B Common Stock3,614156,728D
Class B Common StockF5—Sep 22, 2026C3,614A——Class A Common Stock3,6143,371,734D
Class B Common StockF5—Sep 22, 2026C3,614D——Class A Common Stock3,6143,368,120D

Explanation of responses