Form4insider filings, from the source

Insider · CIK 0001869758

Stephen C. Chen

Files at: DUOL. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.2M · 1net −$1.2M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 27Sep 1Sep 6Sep 11Sep 17Sep 22Sep 27

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 SForm 4 →Sep 15, 6:51 pm EDTDuolingo, Inc.DUOL8,072$149.33$1,205,38543,769−15.6%10b5-1

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.