NBTB insider buying and SEC filings, explained
NBT Bancorp Inc. · CIK 790359
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- National Commercial Banks
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$1.5M
Insiders who bought
1
Sold (not marked 10b5-1)
$2.4M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jul 29, 2026 | Sale | Ruth H Mahoney (President / COO) sold 4,500 shares at $54.30 ($244K). Holdings down 27% to 11,928 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 30, 2026 |
| Jul 29, 2026 | Sale | Sarah A Halliday (EVP/Chief Comm Innovation Off) sold 9,000 shares at $54.04 ($486K). Holdings down 29% to 22,054 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 30, 2026 |
| Jun 12, 2026 | Sale | Martin Randolph Sparks (EVP,General Counsel,Secretary) sold 1,200 shares at $48.04 ($58K). Holdings down 8% to 14,463 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 12, 2026 |
| Jun 12, 2026 | Sale | Heidi M Hoeller (Director) sold 2,100 shares at $48.04 ($101K). Holdings down 15% to 11,560 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 12, 2026 |
| Jun 9, 2026 | Sale | John H. Watt Jr. (Director) sold 21,000 shares at $47.42 ($996K). Holdings down 28% to 54,010 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 10, 2026 |
| Jun 5, 2026 | Sale | Ruth H Mahoney (President / COO) sold 5,000 shares at $46.60 ($233K). Holdings down 23% to 16,428 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 8, 2026 |
| Mar 13, 2026 | Sale | Martin Randolph Sparks (EVP,General Counsel,Secretary) sold 2,400 shares at $41.30 ($99K). Holdings down 17% to 11,350 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Jan 28, 2026 | Purchase (code P) Amended filing | Timothy E. Delaney (Director) bought 22,730 shares indirectly at $42.97 ($977K), reported as a purchase (code P). New position of 22,730 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Jan 29. | SEC filing Filed Mar 13, 2026 |
| Feb 17, 2026 | Sale | Amy Wiles (EVP, Chief Risk and Credit) sold 4,435 shares at $45.72 ($203K). Holdings down 17% to 21,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 18, 2026 |
| Nov 6, 2025 | Purchase (code P) | Timothy E. Delaney (Director) bought 10,000 shares at about $40.98 ($410K), reported as a purchase (code P). Holdings up 24% to 51,885 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 7, 2025 |
| Oct 31, 2025 | Purchase (code P) | Timothy E. Delaney (Director) bought 2,000 shares at $40.50 ($81K), reported as a purchase (code P). Holdings up 5% to 41,885 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 3, 2025 |
47 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 4:30 PM ET 8-K | Reg FD disclosure (Item 7.01) | SEC filing | |
| Oct 27, 2026, 4:30 PM ET 8-K | Earnings released (Item 2.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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