NB Bancorp, Inc. SEC filings NBBK
NB Bancorp, Inc. has 250 filings in SEC EDGAR's recent list, going back to Jun 9, 2023. Its latest annual report, Form ARS, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 15, 2026 (results of operations, regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Oct 15, 2026 | Oct 15, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Jul 22, 2026 | Jul 22, 2026 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Other events
|
May 21, 2026 | May 21, 2026 |
| 8-K |
Current report
Other events
|
May 13, 2026 | May 12, 2026 |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Apr 29, 2026 | Apr 29, 2026 |
| 8-K |
Current report
Results of operations, Officer or director change, Other events
|
Apr 22, 2026 | Apr 22, 2026 |
| DEF 14A | Proxy statement | Mar 27, 2026 | Apr 29, 2026 |
| ARS | Annual report to shareholders | Mar 27, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 3, 2026 | Dec 31, 2025 |
| S-8 POS | Filing | Feb 9, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 4, 2026 | Feb 4, 2026 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 22, 2026 | Jan 22, 2026 |
| 8-K |
Current report
Acquisition or sale of assets, Officer or director change, Regulation FD disclosure
|
Nov 17, 2025 | Nov 15, 2025 |
| S-8 | Employee stock plan registration | Nov 14, 2025 | — |
| 8-K |
Current report
Other events
|
Nov 14, 2025 | Nov 14, 2025 |
| 425 | Filing | Nov 13, 2025 | — |
| 8-K/A |
Amended current report
Regulation FD disclosure, Other events
|
Nov 13, 2025 | Nov 13, 2025 |
| 425 | Filing | Nov 13, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 13, 2025 | Nov 13, 2025 |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Other events
|
Nov 4, 2025 | Nov 4, 2025 |
| 425 | Filing | Oct 31, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 31, 2025 | Oct 31, 2025 |
| 8-K/A |
Amended current report
Results of operations, Other events
|
Oct 23, 2025 | Oct 22, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 22, 2025 | Oct 22, 2025 |
| 8-K |
Current report
Other events
|
Oct 20, 2025 | Oct 20, 2025 |
| 8-K |
Current report
Other events
|
Oct 8, 2025 | Oct 7, 2025 |
| 10-Q | Quarterly report | Aug 8, 2025 | Jun 30, 2025 |
| EFFECT | Filing | Jul 30, 2025 | — |
| 424B3 | Prospectus | Jul 30, 2025 | — |
| 8-K |
Current report
Other events
|
Jul 29, 2025 | Jul 29, 2025 |
| CORRESP | Letter to the SEC | Jul 28, 2025 | — |
| S-4/A | Filing | Jul 28, 2025 | — |
| 8-K |
Current report
Results of operations, Other events
|
Jul 23, 2025 | Jul 23, 2025 |
| 8-K |
Current report
Other events
|
Jul 16, 2025 | Jul 15, 2025 |
| UPLOAD | Letter from the SEC | Jul 10, 2025 | — |
| S-4 | Registration for a merger or exchange | Jul 2, 2025 | — |
| 11-K | Employee savings plan report | Jun 25, 2025 | Dec 31, 2024 |
| 425 | Filing | Jun 6, 2025 | — |
| 8-K/A |
Amended current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Jun 5, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Jun 5, 2025 | Jun 5, 2025 |
| 10-Q | Quarterly report | May 9, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Other events
|
May 7, 2025 | May 7, 2025 |
| S-8 | Employee stock plan registration | Apr 24, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Apr 24, 2025 | Apr 23, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 22, 2025 | Apr 22, 2025 |
| 8-K |
Current report
Other events
|
Mar 31, 2025 | Mar 28, 2025 |
| DEF 14A | Proxy statement | Mar 14, 2025 | Apr 23, 2025 |
| ARS | Annual report to shareholders | Mar 11, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Mar 7, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2025 | Jan 28, 2025 |
| 8-K |
Current report
Other events
|
Jan 29, 2025 | Jan 29, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 22, 2025 | Jan 22, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 6, 2025 | Jan 3, 2025 |
| 8-K |
Current report
Other events
|
Nov 14, 2024 | Nov 14, 2024 |
| 10-Q | Quarterly report | Nov 8, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 12, 2024 | Sep 12, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Other events
|
Jul 30, 2024 | Jul 30, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Jul 24, 2024 | Jul 24, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 4, 2024 | Jun 4, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 23, 2024 | May 22, 2024 |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2024 | Apr 24, 2024 |
| ARS | Annual report to shareholders | Apr 12, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 12, 2024 | — |
| DEF 14A | Proxy statement | Apr 12, 2024 | May 22, 2024 |
| 10-K | Annual report | Mar 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 29, 2024 | Feb 28, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 6, 2024 | Feb 1, 2024 |
| 8-K |
Current report
Other events
|
Dec 27, 2023 | Dec 27, 2023 |
| S-8 | Employee stock plan registration | Dec 27, 2023 | — |
| CERT | Filing | Dec 27, 2023 | — |
| 8-A12B | Nb bancorp, inc. form 8-a december 27, 2023 | Dec 27, 2023 | — |
| 8-K |
Current report
Other events
|
Dec 21, 2023 | Dec 21, 2023 |
| 10-Q | Quarterly report | Nov 22, 2023 | Sep 30, 2023 |
| 424B3 | Prospectus | Oct 20, 2023 | — |
| 424B3 | Prospectus | Oct 20, 2023 | — |
| EFFECT | Filing | Oct 12, 2023 | — |
| 8-K |
Current report
Material agreement
|
Oct 12, 2023 | Oct 12, 2023 |
| CORRESP | Letter to the SEC | Oct 10, 2023 | — |
| CORRESP | Letter to the SEC | Oct 10, 2023 | — |
| S-1/A | Amended registration statement | Oct 10, 2023 | — |
| S-1/A | Amended registration statement | Oct 2, 2023 | — |
| S-1/A | Amended registration statement | Sep 29, 2023 | — |
| S-1/A | Amended registration statement | Sep 1, 2023 | — |
| CORRESP | Letter to the SEC | Aug 8, 2023 | — |
| S-1/A | Amended registration statement | Aug 8, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 1, 2023 | — |
| CORRESP | Letter to the SEC | Jul 27, 2023 | — |
| S-1/A | Amended registration statement | Jul 27, 2023 | — |
| UPLOAD | Letter from the SEC | Jul 6, 2023 | — |
| S-1 | Registration statement | Jun 9, 2023 | — |
Showing 99 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Savings Institutions, Not Federally Chartered (SIC 6036)
- Listed as
- NBBK (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Needham, MA
- SEC filer status
- Accelerated filer, Emerging growth company
- SEC CIK
- 1979330
Other Savings Institutions, Not Federally Chartered companies
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- Pioneer Bancorp, Inc./MD PBFS
All 40 Savings Institutions, Not Federally Chartered companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.