NBBKHIGH SIGNALFINANCIAL10-K

NBBK experienced explosive growth with assets increasing 36% to $7.0B and interest expense surging 482% to $90.4M, indicating significant expansion likely through acquisition.

The dramatic increase in interest expense alongside substantial balance sheet growth suggests NBBK either completed a major acquisition or experienced rapid organic growth in a rising rate environment, creating margin pressure despite higher net interest income. The mention of "Provident Acquisition" in the updated language confirms acquisition activity, explaining the sudden scale expansion.

Comparing 2026-03-03 vs 2025-03-07View on EDGAR →
FINANCIAL ANALYSIS

NBBK demonstrated significant expansion across all balance sheet categories, with assets growing 36% to $7.0B and deposits increasing 40% to $5.9B, while stockholders' equity grew a more modest 12% to $858.9M. Despite the substantial asset growth, profitability improved with net income rising 19% to $50.3M and operating cash flow surging 41% to $60.8M, though the 482% spike in interest expense to $90.4M signals either acquisition-related costs or significant margin compression from higher funding costs. The overall picture suggests successful integration of acquired operations with strong deposit growth, though investors should monitor whether the dramatic increase in interest expense stabilizes and net interest margins remain sustainable.

FINANCIAL STATEMENT CHANGES
Interest Expense
P&L
+481.7%
$15.5M$90.4M

Interest expense surged 481.7% — significant debt increase or rising rates materially impacting earnings.

Capital Expenditure
Cash Flow
+76.3%
$1.9M$3.4M

Capital expenditure jumped 76.3% — major investment cycle underway; assess returns on deployment.

Operating Cash Flow
Cash Flow
+40.8%
$43.2M$60.8M

Operating cash flow surged 40.8% — exceptional cash generation, highest quality earnings signal.

Total Deposits
Balance Sheet
+40.1%
$4.2B$5.9B

Deposits grew 40.1% — expanding customer base or increased trust in the institution.

Total Liabilities
Balance Sheet
+39.9%
$4.4B$6.1B

Liabilities grew 39.9% — significant increase in debt or obligations, assess impact on financial flexibility.

Total Assets
Balance Sheet
+35.8%
$5.2B$7.0B

Asset base grew 35.8% — expansion through organic growth, acquisitions, or capital deployment.

Net Income
P&L
+19.3%
$42.1M$50.3M

Net income grew 19.3% — bottom-line growth signals improving overall business health.

Net Interest Income
P&L
+14.8%
$292.5M$335.7M

Net interest income grew 14.8% — benefiting from rate environment or loan book expansion.

Stockholders Equity
Balance Sheet
+12.3%
$765.2M$858.9M

Equity base grew 12.3% — retained earnings accumulation or equity issuance strengthening the balance sheet.

LANGUAGE CHANGES
NEW — 2026-03-03
PRIOR — 2025-03-07
ADDED
As of February 28, 2026, there were 45,604,774 issued and outstanding shares of the Registrant s Common Stock.
These forward-looking statements can be identified by the use of words such as estimate, project, believe, intend, anticipate, assume, plan, seek, expect, will, may, should, indicate, would, contemplate, continue, could, potential, target and words of similar meaning.
Forward-looking statements speak only as of the date on which they are made.
The Company does not undertake any obligation to update any forward-looking statement to reflect circumstances or events that occur after the date the forward-looking statements are made.
Since being incorporated, other than holding the common stock of the Bank and the Provident Aquisition, the Company has not engaged in any material business activities to date.
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REMOVED
As of February 28, 2025, there were 41,842,641 issued and outstanding shares of the Registrant s Common Stock.
In this Annual Report the terms we, our, and us refer to NB Bancorp, Inc.
Since being incorporated, other than holding the common stock of the Bank, the Company has not engaged in any material business activities to date.
BUSINESS OF NEEDHAM BANK General The Bank is a Massachusetts-chartered cooperative bank headquartered in Needham, Massachusetts.
Our headquarters are still located in Needham, and we have branch locations in Wellesley, Westwood, Dedham, Medfield, Medford, Dover, Ashland, Millis, Natick and Boston (Mission Hill).
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