Form4insider filings, from the source

Company · CIK 0000790359 · SIC 6021 — National Commercial Banks · Nasdaq

NBT BANCORP INC · NBTB

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $731k · 2net −$731k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 29, 2026 SForm 4 →Jul 30, 2:45 pm EDTRuth H MahoneyEVP/President of Wealth Mgmt4,500$54.30$244,35011,928−27.4%
Jul 29, 2026 SForm 4 →Jul 30, 2:26 pm EDTSarah A HallidayEVP/Chief Comm Innovation Off9,000$54.04$486,40122,054−29.0%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.