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 |
|---|---|---|---|
| 425 | - | 2000-04-28 | - |
| Activist ownership stake | SC 13D | 2000-04-28 | - |
| New insider ownership | 3 | 2000-04-28 | 2000-04-19 |
| Major company event | 8-K | 2000-04-28 | 2000-04-19 |
| 425 | - | 2000-04-26 | - |
| 425 | - | 2000-04-20 | - |
| 425 | - | 2000-04-20 | - |
| 424B3 | - | 2000-04-06 | - |
| S-4/A | - | 2000-03-31 | - |
| Major company event | 8-K | 2000-03-31 | 2000-03-31 |
| Employee stock plan | S-8 | 2000-03-20 | - |
| Annual report | 10-K | 2000-03-10 | 1999-12-31 |
| Major company event | 8-K | 2000-03-03 | 2000-02-17 |
| 8-A12G/A | - | 2000-02-24 | - |
| 8-A12G/A | - | 2000-02-24 | - |
| S-4 | - | 2000-02-23 | - |
| Major company event | 8-K | 2000-02-22 | 2000-02-17 |
| 424B3 | - | 2000-01-28 | - |
| 424B3 | - | 2000-01-14 | - |
| S-4/A | - | 2000-01-11 | - |
| Activist ownership stake (update) | SC 13D/A | 1999-12-30 | - |
| 8-A12G/A | - | 1999-12-22 | - |
| Major company event | 8-K | 1999-12-22 | 1999-12-16 |
| S-4 | - | 1999-12-21 | - |
| Activist ownership stake (update) | SC 13D/A | 1999-12-17 | - |
| Major company event | 8-K | 1999-12-16 | 1999-12-07 |
| New insider ownership | 3 | 1999-12-16 | 1999-12-07 |
| Activist ownership stake | SC 13D | 1999-12-16 | - |
| Quarterly report | 10-Q | 1999-11-12 | 1999-09-30 |
| Major company event | 8-K | 1999-09-13 | 1999-09-13 |
| New insider ownership | 3 | 1999-08-20 | 1999-08-16 |
| New insider ownership | 3 | 1999-08-19 | 1999-08-16 |
| Major company event | 8-K | 1999-08-19 | 1999-08-16 |
| Major company event | 8-K | 1999-08-19 | 1999-08-16 |
| Activist ownership stake | SC 13D | 1999-08-18 | - |
| Quarterly report | 10-Q | 1999-08-13 | 1999-06-30 |
| Quarterly report | 10-Q | 1999-05-12 | 1999-03-31 |
| 10-K405 | - | 1999-03-16 | 1998-12-31 |
| Proxy statement | DEF 14A | 1999-03-16 | 1999-04-17 |
| Employee stock plan | S-8 | 1998-11-20 | - |
| Quarterly report | 10-Q | 1998-11-12 | 1998-09-30 |
| Quarterly report | 10-Q | 1998-08-14 | 1998-06-30 |
| Quarterly report | 10-Q | 1998-05-15 | 1998-03-31 |
| 10-K405 | - | 1998-03-16 | 1997-12-31 |
| Proxy statement | DEF 14A | 1998-03-02 | 1998-04-18 |
| Quarterly report | 10-Q | 1997-11-13 | 1997-09-30 |
| Quarterly report | 10-Q | 1997-08-13 | 1997-06-30 |
| Quarterly report | 10-Q | 1997-05-13 | 1997-03-31 |
| Proxy statement | DEF 14A | 1997-03-17 | 1997-04-19 |
| 10-K405 | - | 1997-03-14 | 1996-12-31 |