NBTB NBT Bancorp

• $1.5M bought by 1 insider
• $2.4M sold by 6 insiders outside a trading plan
• None no planned (10b5-1) sales

1. Insider
   Trade
   Value
   Traded, filed
2. Ruth H Mahoney EVP/President of Wealth Mgmt
   Sale
   $244K 4,500 shares at $54.30 27% of stake
   Traded Jul 29 Filed Jul 30
   ↗
3. Sarah A Halliday EVP/Chief Comm Innovation Off
   Sale
   $486K 9,000 shares at $54.04 29% of stake
   Traded Jul 29 Filed Jul 30
   ↗
4. Martin Randolph Sparks EVP,General Counsel,Secretary
   Sale
   $58K 1,200 shares at $48.04 7.7% of stake
   Traded Jun 12 Filed Jun 12
   ↗
5. Heidi M Hoeller Director
   Sale
   $101K 2,100 shares at $48.04 15% of stake
   Traded Jun 12 Filed Jun 12
   ↗
6. John H Watt Jr. Director
   Sale
   $996K 21,000 shares at $47.42 28% of stake
   Traded Jun 9 Filed Jun 10
   ↗
7. Ruth H Mahoney EVP/President of Wealth Mgmt
   Sale
   $233K 5,000 shares at $46.60 23% of stake
   Traded Jun 5 Filed Jun 8
   ↗
8. Martin Randolph Sparks EVP,General Counsel,Secretary
   Sale
   $99K 2,400 shares at $41.30 18% of stake
   Traded Mar 13 Filed Mar 17
   ↗
9. Timothy E Delaney Director
   Buy
   $977K 22,730 shares at $42.97 New stake
   Traded Jan 28 Filed Mar 13
   ↗
10. Amy Wiles EVP, Chief Risk and Credit
    Sale
    $203K 4,435 shares at $45.72 17% of stake
    Traded Feb 17 Filed Feb 18
    ↗
11. Timothy E Delaney Director
    Buy
    $410K 10,000 shares at $40.98 +24% to stake
    Traded Nov 6, 2025 Filed Nov 7, 2025
    ↗
12. Timothy E Delaney Director
    Buy
    $81K 2,000 shares at $40.50 +5% to stake
    Traded Oct 31, 2025 Filed Nov 3, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 61 share withholdings for taxes, 29 stock grants, 1 gift, and 1 other transaction.