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NB Bancorp, Inc. Common Stock (NBBK)

NB Bancorp, Inc. Common Stock at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

NB Bancorp, Inc. Common Stock (NBBK) is a Banks - Regional company based in US with a market capitalization of $832.9M. Revenue grew 4.3% year-over-year and the company generated $57.4M in free cash flow. This page tracks NBBK's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 376 employees · IPO Dec 29, 2023

Valuation

Valuation & price

$19.17 · as of May 17, 2026 · -15.3% vs 52w high

15.7

P/E ratio

Latest-FY diluted EPS

0.97

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$22.64$19.76$16.87Jul 25Dec 25Jul 26Jul 7, 25$18.58Jul 9, 25$18.92Jul 11, 25$18.98Jul 15, 25$18.80Jul 17, 25$18.45Jul 21, 25$18.54Jul 23, 25$18.12Jul 25, 25$18.46Jul 29, 25$17.99Jul 31, 25$17.23Aug 4, 25$17.17Aug 6, 25$17.07Aug 11, 25$17.39Aug 13, 25$18.56Aug 15, 25$18.05Aug 19, 25$18.19Aug 21, 25$18.12Aug 25, 25$18.66Aug 27, 25$19.00Aug 29, 25$18.89Sep 3, 25$18.82Sep 5, 25$18.85Sep 9, 25$18.61Sep 11, 25$18.75Sep 16, 25$18.38Sep 18, 25$18.96Sep 22, 25$18.44Sep 24, 25$18.07Sep 26, 25$18.13Sep 30, 25$17.65Oct 2, 25$17.60Oct 6, 25$18.00Oct 8, 25$17.49Oct 10, 25$16.87Oct 14, 25$17.84Oct 16, 25$17.07Oct 21, 25$17.78Oct 23, 25$18.27Oct 27, 25$18.04Oct 29, 25$17.87Oct 31, 25$18.07Nov 4, 25$17.80Nov 6, 25$18.19Nov 10, 25$18.32Nov 12, 25$18.45Nov 14, 25$19.29Nov 18, 25$18.85Nov 20, 25$18.75Nov 25, 25$19.80Nov 28, 25$19.59Dec 2, 25$19.93Dec 4, 25$20.15Dec 8, 25$20.40Dec 10, 25$20.91Dec 12, 25$21.06Dec 16, 25$21.10Dec 18, 25$21.39Dec 22, 25$20.93Dec 24, 25$20.79Dec 29, 25$20.39Jan 2, 26$19.53Jan 6, 26$19.96Jan 8, 26$19.99Jan 12, 26$19.87Jan 14, 26$19.96Jan 16, 26$19.74Jan 21, 26$20.47Jan 23, 26$20.40Jan 27, 26$21.01Jan 29, 26$21.45Feb 2, 26$22.05Feb 4, 26$22.33Feb 9, 26$22.00Feb 11, 26$21.60Feb 13, 26$22.12Feb 18, 26$21.84Feb 20, 26$22.15Feb 24, 26$21.75Feb 26, 26$22.21Mar 2, 26$21.57Mar 4, 26$21.59Mar 6, 26$21.03Mar 10, 26$21.26Mar 12, 26$21.08Mar 17, 26$20.71Mar 19, 26$20.60Mar 23, 26$20.69Mar 25, 26$20.70Mar 27, 26$20.40Mar 31, 26$21.07Apr 2, 26$21.61Apr 7, 26$21.85Apr 9, 26$22.64Apr 13, 26$22.35Apr 15, 26$22.44Apr 17, 26$22.50Apr 22, 26$21.45Apr 24, 26$19.82Apr 28, 26$19.98Apr 30, 26$19.63May 4, 26$19.85May 6, 26$20.48May 8, 26$20.12May 12, 26$20.06May 14, 26$19.62May 18, 26$19.47May 20, 26$19.85May 22, 26$19.78May 28, 26$19.97Jun 1, 26$19.69Jun 3, 26$19.36Jun 5, 26$19.93Jun 9, 26$20.26Jun 11, 26$20.44Jun 15, 26$20.27Jun 17, 26$20.16Jun 22, 26$20.30Jun 24, 26$21.01Jun 26, 26$21.30Jul 2, 26$21.25
$16.8752-week range$22.64
Loading valuation history…

Fundamentals

Key fundamentals

$832.9M

Market cap

4.3%

Revenue growth (YoY)

54.9%

Gross margin

$57.4M

Free cash flow (USD)

-$398.4M

Net debt

Net cash position

3.8%

Share dilution

2/4

Graham criteria passed

Defensive-investor screen

Financial Services

Sector

Trajectory

Long-term trends

Revenue by year

2021 → 2025

FY 2021$98.8MFY 2022$128.9MFY 2023$237.5MFY 2024$304.0MFY 2025$317.2M
$98.8M$317.2M

Free cash flow by year

2021 → 2025

FY 2021$42.0MFY 2022$31.2MFY 2023$50.0MFY 2024$41.3MFY 2025$57.4M
$42M$57.4M

Gross margin by year

2021 → 2025

FY 202185.1%FY 202282.7%FY 202356.1%FY 202452.8%FY 202554.9%
85.1%54.9%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventEarnings ReleaseMay 21, 2026Filing
  • 8-K eventShare RepurchaseMay 13, 2026Filing
  • Quarterly report10-Q FiledMay 8, 2026Filing
  • 8-K eventAnnual Meeting ResultsApr 29, 2026Filing
  • 8-K eventEarnings Release and Dividend DeclaredApr 22, 2026Filing

Questions

Frequently asked questions

What is NB Bancorp, Inc. Common Stock's market cap?

NB Bancorp, Inc. Common Stock (NBBK) has a market capitalization of $832.9M.

What is NBBK's P/E ratio?

NBBK trades at a price-to-earnings ratio of 15.7, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is NBBK's price-to-book (P/B) ratio?

NBBK trades at 0.97 times book value per share.

Are insiders buying NBBK stock?

SEC Form 4 filings show no open-market insider buys at NB Bancorp, Inc. Common Stock in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.