NBBK NB Bancorp, Inc.
company
SEC Filings & Insider Trading Activity 2026

CIK: 1979330
Financials
Savings Institutions, Not Federally Chartered 14 filings
Russell 2000

Latest NB Bancorp, Inc. (NBBK) SEC EDGAR filings in 2026 — including the most recent 10-K annual report filed on March 3, 2026, a 10-Q quarterly report filed on November 7, 2025, an 8-K current report filed on April 29, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for NB Bancorp, Inc. (NBBK) (SEC CIK 1979330), with AI-powered section-by-section summaries updated daily.

10-Q: 7
8-K: 4
10-K: 3

Latest 2026 SEC Filing Dates

10-K Annual Report
Mar 3, 2026
10-Q Quarterly Report
Nov 7, 2025
8-K Current Report
Apr 29, 2026

AI 10-K Annual Report Analysis
Latest 10-K (2025-12-31)

Business Overview

  • Core business: Banking and financial services focused on capital management and regulatory compliance
  • New emphasis on dividend payments tied to Federal Reserve Board supervisory policies and capital conservation buffer requirements
+3 more insights

Risk Factors

  • Regulatory risk from compliance with the Bank Secrecy Act and oversight by the Office of the Comptroller of the Currency
  • Macroeconomic risk due to potential credit losses in commercial loan portfolio amid regional economic downturn exposure
+3 more insights

Management Discussion & Analysis

  • Acquisition of Provident added $1.40B total assets, $1.18B net loans, $1.14B deposits in Nov 2025
  • Issued 5.9M shares and paid $111.8M cash; acquisition transaction valued $226.5M
+3 more insights

Annual Reports Archive
10-K

AI-powered analysis of NB Bancorp, Inc. (NBBK) 10-K annual reports filed with SEC EDGAR.

Financial Summary
XBRL

FY2021FY2022FY2023FY2024FY2025
Profitability
Revenue$120.5M$220.5M$292.5M$335.7M
Net Income$30.1M$9.8M$42.1M$50.3M
Net Margin24.9%4.5%14.4%15.0%
Balance Sheet
Total Assets$3.6B$4.5B$5.2B$7.0B
Equity$326.1M$344.1M$758.0M$765.2M$858.9M
ROE8.7%1.3%5.5%5.9%

Source: XBRL financial data from NB Bancorp, Inc. (NBBK) 10-K filings on SEC EDGAR. All figures in USD. Key metrics include revenue, net income, gross profit, gross profit margin, operating income, EPS (diluted), total assets, stockholders' equity, return on equity (ROE), operating cash flow, and capital expenditure.

Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
8-K
Apr 29, 2026
8-K
Apr 22, 2026
10-K
Mar 3, 2026Dec 31, 2025Analysis
8-K
Feb 4, 2026
8-K
Jan 22, 2026
10-Q
Nov 7, 2025Sep 30, 2025
10-Q
Aug 8, 2025Jun 30, 2025
10-Q
May 9, 2025Mar 31, 2025
10-K
Mar 7, 2025Dec 31, 2024
10-Q
Nov 8, 2024Sep 30, 2024
10-Q
Aug 9, 2024Jun 30, 2024
10-Q
May 10, 2024Mar 31, 2024
10-K
Mar 28, 2024Dec 31, 2023
10-Q
Nov 22, 2023Sep 30, 2023

Frequently Asked Questions

What are the latest NBBK SEC filings in 2026?

NB Bancorp, Inc. (NBBK) has filed a 10-K annual report on March 3, 2026, a 10-Q quarterly report on November 7, 2025, an 8-K current report on April 29, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.

When did NBBK file its most recent 10-K annual report?

NB Bancorp, Inc. (NBBK) filed its most recent 10-K annual report on March 3, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.

How do I view NBBK 10-Q quarterly reports?

NB Bancorp, Inc. (NBBK)'s most recent 10-Q quarterly report was filed on November 7, 2025. SignalX displays every NBBK 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.

What 8-K current reports has NBBK filed recently?

NB Bancorp, Inc. (NBBK)'s most recent 8-K was filed on April 29, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.

Where can I find NBBK insider trading activity (Form 4)?

SignalX aggregates every NBBK Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does NBBK file with the SEC?

NB Bancorp, Inc. (NBBK) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new NBBK filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for NB Bancorp, Inc. (NBBK).

What is NBBK's SEC CIK number?

NB Bancorp, Inc. (NBBK)'s SEC CIK (Central Index Key) number is 1979330. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1979330 to look up all NBBK filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Where can I find NBBK return on equity (ROE) and financial data?

SignalX extracts XBRL financial data from NB Bancorp, Inc. (NBBK) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.

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