NB Bancorp, Inc. - NBBK
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 54
Latest filed: May 21, 2026
| Form | Count |
|---|---|
| 4 | 37 |
| 4/A | 7 |
| 8-K | 6 |
| SCHEDULE 13G/A | 2 |
| SCHEDULE 13G | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 21, 2026 | 8-K | May 21, 2026 | 0001104659-26-064982 | View |
| May 18, 2026 | 4 | May 15, 2026 | 0001437749-26-017617 | View |
| May 15, 2026 | SCHEDULE 13G/A | — | 0000919574-26-003333 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017263 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017265 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017267 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017270 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017273 | View |
| May 15, 2026 | 4/A | Apr 24, 2026 | 0001437749-26-017275 | View |
| May 13, 2026 | 8-K | May 12, 2026 | 0001104659-26-060111 | View |
| Apr 29, 2026 | 8-K | Apr 29, 2026 | 0001104659-26-051401 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013433 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013434 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013435 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013436 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013437 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013438 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013439 | View |
| Apr 27, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013440 | View |
| Apr 24, 2026 | 4 | Apr 24, 2026 | 0001437749-26-013302 | View |
| Apr 22, 2026 | 8-K | Apr 22, 2026 | 0001104659-26-046868 | View |
| Mar 30, 2026 | 4 | Mar 09, 2026 | 0001437749-26-010252 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001815 | View |
| Mar 20, 2026 | 4/A | Mar 06, 2026 | 0001437749-26-009133 | View |
| Mar 19, 2026 | 4 | Mar 19, 2026 | 0001437749-26-009077 | View |
| Mar 09, 2026 | 4 | Mar 06, 2026 | 0001437749-26-007359 | View |
| Mar 09, 2026 | 4 | Mar 09, 2026 | 0001437749-26-007305 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006027 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006028 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006029 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006031 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006032 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006033 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006035 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006036 | View |
| Feb 27, 2026 | 4 | Feb 25, 2026 | 0001437749-26-006037 | View |
| Feb 13, 2026 | SCHEDULE 13G | — | 0000943374-26-000092 | View |
| Feb 04, 2026 | 8-K | Feb 04, 2026 | 0001104659-26-010122 | View |
| Jan 30, 2026 | SCHEDULE 13G | — | 0000102909-26-000184 | View |
| Jan 30, 2026 | 4 | Jan 24, 2025 | 0001437749-26-002496 | View |
| Jan 22, 2026 | 8-K | Jan 22, 2026 | 0001104659-26-005790 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000478 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000480 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000482 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000483 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000485 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000486 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000487 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000488 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000489 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000491 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000492 | View |
| Jan 06, 2026 | 4 | Jan 02, 2026 | 0001437749-26-000493 | View |
| Dec 19, 2025 | 4 | Dec 19, 2025 | 0001437749-25-038410 | View |