Form4insider filings, from the source

Insider · CIK 0001882913

Spenser Skates

Files at: AMPL. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $2.3M · 1net −$2.3M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 9Sep 9Sep 9Sep 10Sep 10Sep 10Sep 11

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 SForm 4 →Sep 14, 4:59 pm EDTAmplitude, Inc.AMPL185,000$12.30$2,275,6110−100%10b5-1
Sep 10, 2026 CForm 4 →Sep 14, 4:59 pm EDTAmplitude, Inc.AMPL185,000——185,000—10b5-1
Aug 17, 2026 FForm 4 →Aug 18, 5:18 pm EDTAmplitude, Inc.AMPL52,369$13.03$682,3681,231,188—

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 CForm 4 →Sep 14, 4:59 pm EDTAmplitude, Inc.AMPL185,000——382,157—10b5-1