SEC filings / CIK 1979330
NB BANCORP, INC.
Savings institutions, state chartered, MA. 3 10-K filer-years in this dataset, the most recent for FY2025, filed Mar 3, 2026. Every figure below is as filed by the company and untouched: FinObservatory has not restated, rescaled or corrected anything, and a blank is a fact the filing does not tag, not a zero.
This is the SEC holding company, identified by its Central Index Key. It is not the insured bank subsidiary that appears in /banks and /deposits, which are FDIC call-report entities on a different consolidation. Nothing here should be compared line for line with those.
Filing history, as filed
| FY | Filed | Assets | Deposits | Equity | AOCI | HTM carrying | HTM fair value | Gap, % of equity | Custom facts |
|---|---|---|---|---|---|---|---|---|---|
| 2025p | Mar 3, 2026 | $7.01bn | $5.85bn | $858.9m | -$3.1m | n/a | n/a | n/a | 14.4% |
| 2024 | Mar 7, 2025 | $5.16bn | $4.18bn | $765.2m | -$8.2m | n/a | n/a | n/a | 12.4% |
| 2023 | Mar 28, 2024 | $4.53bn | $3.39bn | $758.0m | -$11.9m | n/a | n/a | n/a | 13.3% |
ext marks a carrying amount tagged with a company-invented element. p marks FY2025, which the dataset’s filing window (closing Mar 31, 2026) leaves incomplete across filers. “Custom facts” is the share of that filing’s consolidated facts carrying a company-invented tag, in any unit.
Source: SEC Financial Statement Data Sets, US Securities and Exchange Commission, Division of Economic and Risk Analysis. Facts as filed: uncleaned, unrestated, not audited by FinObservatory. Selection: this company's 10-K submissions with prevrpt = 0, one per fiscal year by latest filed date; consolidated USD instants at each filing's period end. Dollar columns are raw US dollars. Methodology
What this page cannot tell you
- A blank in the held-to-maturity columns means the filing does not tag that fact on the consolidated face. It does not mean the company holds no held-to-maturity securities, and this dataset cannot distinguish the two.
- A held-to-maturity gap is not a realised loss. Held to maturity, the securities pay par. The gap measures how far the reported equity sits from a mark-to-market equity, which becomes a solvency question only if the book must be sold.
- AOCI is not the held-to-maturity mark. It bundles available-for-sale marks, hedge marks, pension and translation, net of tax. Do not add the two columns.
- Every value is as filed. A scale error, sign error or mis-tag by the company is reproduced here exactly as the company made it.
Pages exist for the 650 bank and thrift holding companies with at least one 10-K from FY2015 onward, out of 900 with a 10-K anywhere in the dataset.