NBTB - CIK 0000790359
NBT BANCORP INC has filed 2,117 documents with the SEC between 1995 and 2026. The most frequent type is insider trade (1,106 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2026-05-22 | 2026-05-21 |
| New insider ownership | 3 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Insider trade | 4 | 2026-05-21 | 2026-05-19 |
| Major company event | 8-K | 2026-05-19 | 2026-05-19 |
| Major company event | 8-K | 2026-05-18 | 2026-05-18 |
| Insider trade | 4 | 2026-05-18 | 2026-05-15 |
| Insider trade | 4 | 2026-05-18 | 2026-05-15 |
| Insider trade | 4 | 2026-05-18 | 2026-05-15 |
| Insider sale notice | 144 | 2026-05-14 | - |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Quarterly report | 10-Q | 2026-05-08 | 2026-03-31 |
| Major company event | 8-K | 2026-05-04 | 2026-05-04 |
| SCHEDULE 13G | - | 2026-04-30 | - |
| SCHEDULE 13G | - | 2026-04-29 | - |
| Major company event | 8-K | 2026-04-23 | 2026-04-23 |
| Annual report to shareholders | ARS | 2026-04-06 | 2025-12-31 |
| Proxy materials | DEFA14A | 2026-04-06 | - |
| Proxy statement | DEF 14A | 2026-04-06 | 2026-05-19 |
| SCHEDULE 13G/A | - | 2026-03-27 | - |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-25 | 2026-03-23 |
| Insider trade | 4 | 2026-03-17 | 2026-03-13 |
| Insider sale notice | 144 | 2026-03-13 | - |
| Insider trade (amended) | 4/A | 2026-03-13 | 2026-01-28 |
| Insider trade | 4 | 2026-03-09 | 2026-03-06 |
| Annual report | 10-K | 2026-02-27 | 2025-12-31 |
| Insider trade | 4 | 2026-02-18 | 2026-02-17 |
| Insider sale notice | 144 | 2026-02-17 | - |
| Annual insider summary | 5 | 2026-02-13 | 2025-12-31 |
| Annual insider summary | 5 | 2026-02-13 | 2025-12-31 |
| Annual insider summary | 5 | 2026-02-13 | 2025-12-31 |
| Annual insider summary | 5 | 2026-02-13 | 2025-12-31 |
| Annual insider summary | 5 | 2026-02-13 | 2025-12-31 |