NBT BANCORP INC — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K405
10-K405/A
10-Q
10-Q/A
11-K
11-K/A
13F-HR/A
144
3
3/A
305B2
4
4/A
424B2
424B3
424B5
425
5
5/A
8-A12G/A
8-K
8-K/A
CORRESP
DEF 14A
DEFA14A
DEFR14A
EFFECT
FWP
NO ACT
POS AM
PRE 14A
RW
S-3
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001876 | Mar 27, 2026 | — |
| 4 | — | 0001140361-26-011223 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | FORM 4 | 0001140361-26-011221 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | FORM 4 | 0001140361-26-011218 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | — | 0001140361-26-011217 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | — | 0001140361-26-011214 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | — | 0001140361-26-011211 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | FORM 4 | 0001140361-26-011207 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | — | 0001140361-26-011203 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | FORM 4 | 0001140361-26-011199 | Mar 25, 2026 | Mar 23, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000026 | Mar 17, 2026 | Mar 13, 2026 |
| 144 | — | 0001950047-26-002569 | Mar 13, 2026 | — |
| 4/A | PRIMARY DOCUMENT | 0000790359-26-000025 | Mar 13, 2026 | Jan 28, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000024 | Mar 9, 2026 | Mar 6, 2026 |
| 10-K | 10-K | 0001140361-26-007179 | Feb 27, 2026 | Dec 31, 2025 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000023 | Feb 18, 2026 | Feb 17, 2026 |
| 144 | — | 0001950047-26-001402 | Feb 17, 2026 | — |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000022 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000021 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000020 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000019 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000018 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000017 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000016 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000015 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000014 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000013 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000012 | Feb 13, 2026 | Dec 31, 2025 |
| 5 | PRIMARY DOCUMENT | 0000790359-26-000011 | Feb 13, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001140361-26-004620 | Feb 10, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000010 | Jan 29, 2026 | Jan 28, 2026 |
| 8-K | 8-K | 0001140361-26-002399 | Jan 26, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000009 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000008 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000007 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000006 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000005 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000004 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000003 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000002 | Jan 16, 2026 | Jan 15, 2026 |
| 4 | PRIMARY DOCUMENT | 0000790359-26-000001 | Jan 16, 2026 | Jan 15, 2026 |
| 10-Q | 10-Q | 0001140361-25-041148 | Nov 7, 2025 | Sep 30, 2025 |
| 4 | PRIMARY DOCUMENT | 0000790359-25-000005 | Nov 7, 2025 | Nov 6, 2025 |
| 8-K | 8-K | 0001140361-25-040346 | Nov 4, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0000790359-25-000004 | Nov 3, 2025 | Oct 31, 2025 |
| 144 | — | 0001969223-25-000895 | Oct 31, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0000790359-25-000003 | Oct 31, 2025 | Oct 30, 2025 |
| 8-K | 8-K | 0001140361-25-039473 | Oct 27, 2025 | — |
| 8-K | 8-K | 0001140361-25-033438 | Aug 29, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001690001-25-000048 | Aug 18, 2025 | Aug 15, 2025 |