8-K current report · filed Sep 21, 2026

NBT BANCORP INC (NBTB) 8-K Current Report: September 21, 2026

Item 5.02Item EX-99.1NBTB overview

Short answer

NBT BANCORP INC (NBTB) filed an 8-K current report with the SEC on September 21, 2026 reporting Item 5.02 (Departure/Election of Directors or Officers), Item EX-99.1 (Exhibit EX-99.1). Board expanded to 13 directors with Kimberly A. Boynton joining effective October 1, 2026.

NBT BANCORP INC 8-K event analysis

AI summary of each reported item and its exhibits

Item 5.02 · Departure/Election of Directors or Officers

  • Board expanded to 13 directors with Kimberly A. Boynton joining effective October 1, 2026
  • Independent Nasdaq-qualified director with healthcare, finance, governance and commercial real estate expertise
  • Expected Audit, Compensation and Benefits, and Risk Management Committee assignments
  • Prorated restricted stock units and annual retainers under NBT’s standard director compensation program

Item EX-99.1 · Exhibit EX-99.1

  • Kimberly A. Boynton joining NBT Bancorp and NBT Bank boards effective October 1, 2026
  • Board addition brings healthcare executive, CFO, accounting, governance and commercial real estate experience
  • Boynton’s Central New York relationships could strengthen regional business and community engagement
  • NBT reported total assets of $16.21 billion as of June 30, 2026

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