Browse the latest SEC filings and forms submitted by NB Bancorp, Inc. (NBBK). Access annual reports, quarterly statements, and other official disclosures.
View Insider Transactions for NB Bancorp, Inc. (NBBK).
Search Company Filings →| Form | Filing Date | Description | Link |
|---|---|---|---|
| 3 | March 30, 2026 | FORM 3 | View Document |
| 4 | March 30, 2026 | FORM 4 | View Document |
| DEF 14A | March 27, 2026 | DEF 14A | View Document |
| ARS | March 27, 2026 | ARS | View Document |
| SCHEDULE 13G/A | March 27, 2026 | - | View Document |
| 4/A | March 20, 2026 | FORM 4/A | View Document |
| 4 | March 19, 2026 | FORM 4 | View Document |
| 4 | March 9, 2026 | FORM 4 | View Document |
| 4 | March 9, 2026 | FORM 4 | View Document |
| 10-K | March 3, 2026 | 10-K | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| 4 | Feb. 27, 2026 | FORM 4 | View Document |
| SCHEDULE 13G | Feb. 13, 2026 | - | View Document |
| S-8 POS | Feb. 9, 2026 | S-8 POS | View Document |
| 8-K | Feb. 4, 2026 | 8-K | View Document |
| 4 | Jan. 30, 2026 | FORM 4 | View Document |
| SCHEDULE 13G | Jan. 30, 2026 | - | View Document |
| 8-K | Jan. 22, 2026 | 8-K | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Jan. 6, 2026 | FORM 4 | View Document |
| 4 | Dec. 19, 2025 | FORM 4 | View Document |
| SCHEDULE 13G/A | Dec. 5, 2025 | - | View Document |
| 3 | Nov. 25, 2025 | OWNERSHIP DOCUMENT | View Document |
| 8-K | Nov. 17, 2025 | FORM 8-K | View Document |
| S-8 | Nov. 14, 2025 | FORM S-8 | View Document |
| 8-K | Nov. 14, 2025 | FORM 8-K | View Document |
| 8-K/A | Nov. 13, 2025 | FORM 8-K | View Document |
| 425 | Nov. 13, 2025 | 425 | View Document |
| 425 | Nov. 13, 2025 | 425 | View Document |
| 8-K | Nov. 13, 2025 | FORM 8-K | View Document |
| 4 | Nov. 12, 2025 | FORM 4 | View Document |
| 10-Q | Nov. 7, 2025 | 10-Q | View Document |
| 8-K | Nov. 4, 2025 | 8-K | View Document |
| 4 | Nov. 3, 2025 | FORM 4 | View Document |
| 425 | Oct. 31, 2025 | 425 | View Document |
| 8-K | Oct. 31, 2025 | FORM 8-K | View Document |
| 4 | Oct. 29, 2025 | FORM 4 | View Document |
| 8-K/A | Oct. 23, 2025 | 8-K/A | View Document |
| 8-K | Oct. 22, 2025 | 8-K | View Document |
| 8-K | Oct. 20, 2025 | FORM 8-K | View Document |
| 8-K | Oct. 8, 2025 | FORM 8-K | View Document |
| 4 | Sept. 18, 2025 | FORM 4 | View Document |
| 4 | Sept. 15, 2025 | FORM 4 | View Document |
| 4 | Sept. 12, 2025 | FORM 4 | View Document |
| 4 | Sept. 11, 2025 | FORM 4 | View Document |
| 4 | Aug. 12, 2025 | FORM 4 | View Document |
| 10-Q | Aug. 8, 2025 | 10-Q | View Document |
| 424B3 | July 30, 2025 | 424B3 | View Document |
| EFFECT | July 30, 2025 | - | View Document |
| SCHEDULE 13G/A | July 29, 2025 | - | View Document |
| 8-K | July 29, 2025 | 8-K | View Document |
| S-4/A | July 28, 2025 | S-4/A | View Document |
| CORRESP | July 28, 2025 | - | View Document |
| 4 | July 25, 2025 | FORM 4 | View Document |
| 8-K | July 23, 2025 | 8-K | View Document |
| 3 | July 23, 2025 | FORM 3 | View Document |
| 8-K | July 16, 2025 | 8-K | View Document |
| UPLOAD | July 10, 2025 | - | View Document |
| S-4 | July 2, 2025 | S-4 | View Document |
| 11-K | June 25, 2025 | 11-K | View Document |
| 4 | June 18, 2025 | FORM 4 | View Document |
| SCHEDULE 13G | June 11, 2025 | - | View Document |
| 4 | June 10, 2025 | FORM 4 | View Document |
| 4 | June 10, 2025 | FORM 4 | View Document |
| 425 | June 6, 2025 | 425 | View Document |
| 8-K/A | June 5, 2025 | 8-K/A | View Document |
| 8-K | June 5, 2025 | 8-K | View Document |
| 10-Q | May 9, 2025 | 10-Q | View Document |
| 8-K | May 7, 2025 | 8-K | View Document |
| SCHEDULE 13G | April 30, 2025 | - | View Document |
| 4 | April 29, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| 4 | April 28, 2025 | FORM 4 | View Document |
| S-8 | April 24, 2025 | S-8 | View Document |
| 8-K | April 24, 2025 | 8-K | View Document |
| 8-K | April 22, 2025 | 8-K | View Document |
| 8-K | March 31, 2025 | 8-K | View Document |
| 4 | March 18, 2025 | FORM 4 | View Document |
| DEF 14A | March 14, 2025 | DEF 14A | View Document |
| 4 | March 13, 2025 | FORM 4 | View Document |
| ARS | March 11, 2025 | ARS | View Document |
| 10-K | March 7, 2025 | 10-K | View Document |
| SCHEDULE 13G/A | Feb. 12, 2025 | - | View Document |
| 3 | Feb. 3, 2025 | FORM 3 | View Document |
| 8-K | Jan. 31, 2025 | - | View Document |
| SCHEDULE 13G/A | Jan. 30, 2025 | - | View Document |
| 8-K | Jan. 29, 2025 | 8-K | View Document |
| 4 | Jan. 27, 2025 | FORM 4 | View Document |
| 4 | Jan. 24, 2025 | FORM 4 | View Document |
| 3 | Jan. 22, 2025 | FORM 3 | View Document |
| 8-K | Jan. 22, 2025 | 8-K | View Document |
| 8-K | Jan. 6, 2025 | 8-K | View Document |
| 4 | Nov. 19, 2024 | FORM 4 | View Document |
| SC 13G | Nov. 14, 2024 | 13G NB BANCORP INC. 093024 | View Document |
| 8-K | Nov. 14, 2024 | 8-K | View Document |
| SC 13G/A | Nov. 12, 2024 | - | View Document |
| 10-Q | Nov. 8, 2024 | 10-Q | View Document |
| SC 13G | Nov. 8, 2024 | - | View Document |
| SC 13G/A | Nov. 4, 2024 | - | View Document |
| 8-K | Oct. 30, 2024 | 8-K | View Document |
| SC 13G | Oct. 22, 2024 | - | View Document |
| 4 | Sept. 20, 2024 | FORM 4 | View Document |
| 4 | Sept. 20, 2024 | FORM 4 | View Document |
| 3 | Sept. 16, 2024 | FORM 3 | View Document |
| 8-K | Sept. 12, 2024 | 8-K | View Document |
| 4 | Aug. 27, 2024 | FORM 4 | View Document |
| 10-Q | Aug. 9, 2024 | 10-Q | View Document |
| 4 | Aug. 6, 2024 | FORM 4 | View Document |
| 4 | Aug. 2, 2024 | FORM 4 | View Document |
| 8-K | July 30, 2024 | 8-K | View Document |
| 8-K | July 24, 2024 | 8-K | View Document |
| 11-K | June 27, 2024 | 11-K | View Document |
| 8-K | June 4, 2024 | 8-K | View Document |
| 8-K | May 23, 2024 | 8-K | View Document |
| 4 | May 21, 2024 | FORM 4 | View Document |
| SC 13G | May 21, 2024 | - | View Document |
| 4 | May 16, 2024 | FORM 4 | View Document |
| 10-Q | May 10, 2024 | 10-Q | View Document |
| 4 | May 9, 2024 | FORM 4 | View Document |
| 4 | May 1, 2024 | FORM 4 | View Document |
| 4 | April 30, 2024 | FORM 4 | View Document |
| 8-K | April 24, 2024 | 8-K | View Document |
| DEF 14A | April 12, 2024 | DEF 14A | View Document |
| DEFA14A | April 12, 2024 | DEFA14A | View Document |
| ARS | April 12, 2024 | ARS | View Document |
| 10-K | March 28, 2024 | 10-K | View Document |
| 4 | March 22, 2024 | FORM 4 | View Document |
| 4 | March 19, 2024 | FORM 4 | View Document |
| 4 | March 12, 2024 | FORM 4 | View Document |
| 4 | March 11, 2024 | FORM 4 | View Document |
| 4/A | March 11, 2024 | FORM 4/A | View Document |
| 4 | March 6, 2024 | FORM 4 | View Document |
| 4 | March 5, 2024 | FORM 4 | View Document |
| 4 | March 5, 2024 | FORM 4 | View Document |
| 4 | March 5, 2024 | FORM 4 | View Document |
| 8-K | Feb. 29, 2024 | 8-K | View Document |
| 3 | Feb. 8, 2024 | FORM 3 | View Document |
| 8-K | Feb. 6, 2024 | 8-K | View Document |
| 4 | Jan. 17, 2024 | FORM 4 | View Document |
| 4 | Jan. 12, 2024 | FORM 4 | View Document |
| 4 | Jan. 10, 2024 | FORM 4 | View Document |
| 4 | Jan. 8, 2024 | FORM 4 | View Document |
| 4 | Jan. 5, 2024 | FORM 4 | View Document |
| 4 | Jan. 3, 2024 | FORM 4 | View Document |
| 4 | Jan. 2, 2024 | FORM 4 | View Document |
| 4 | Jan. 2, 2024 | FORM 4 | View Document |
| 4 | Dec. 29, 2023 | FORM 4 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| CERT | Dec. 27, 2023 | - | View Document |
| 8-A12B | Dec. 27, 2023 | NB BANCORP, INC. FORM 8-A DECEMBER 27, 2023 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| S-8 | Dec. 27, 2023 | NB BANCORP, INC. FORM S-8 REGISTRATION STATEMENT DECEMBER 27, 2023 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 3 | Dec. 27, 2023 | FORM 3 | View Document |
| 8-K | Dec. 27, 2023 | NB BANCORP, INC. FORM 8-K DECEMBER 27, 2023 | View Document |
| 8-K | Dec. 21, 2023 | FORM 8-K | View Document |
| 10-Q | Nov. 22, 2023 | 10-Q | View Document |
| 424B3 | Oct. 20, 2023 | 424B3 | View Document |
| 424B3 | Oct. 20, 2023 | 424B3 | View Document |
| 8-K | Oct. 12, 2023 | FORM 8-K | View Document |
| EFFECT | Oct. 12, 2023 | - | View Document |
| CORRESP | Oct. 10, 2023 | - | View Document |
| S-1/A | Oct. 10, 2023 | S-1/A | View Document |
| CORRESP | Oct. 10, 2023 | - | View Document |
| S-1/A | Oct. 2, 2023 | S-1/A | View Document |
| S-1/A | Sept. 29, 2023 | S-1/A | View Document |
| S-1/A | Sept. 1, 2023 | S-1/A | View Document |
| S-1/A | Aug. 8, 2023 | S-1/A | View Document |
| CORRESP | Aug. 8, 2023 | - | View Document |
| UPLOAD | Aug. 1, 2023 | - | View Document |
| S-1/A | July 27, 2023 | S-1/A | View Document |
| CORRESP | July 27, 2023 | - | View Document |
| UPLOAD | July 6, 2023 | - | View Document |
| S-1 | June 9, 2023 | FORM S-1 | View Document |