# NB Bancorp, Inc.: overview NBBK · Nasdaq · CIK 1979330 · [Financials](/sectors/financials.md) · fiscal year ends Dec 31 Pages: [Overview](/companies/nbbk.md) · [Financials](/companies/nbbk/financials.md) · [Filings](/companies/nbbk/filings.md) · [Insiders](/companies/nbbk/insiders.md) Revenue is not reported in this company’s XBRL financial statements. ## Last eight quarters | Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) | | --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | | Revenue | $m | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported | | Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported | | Operating margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported | | Net margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported | | Diluted EPS | $ per share | [0.21](/filings/0001104659-25-108388.md) | not reported | [0.33](/filings/0001104659-26-057822.md) | [0.39](/filings/0001104659-26-092573.md) | [0.43](/filings/0001104659-25-108388.md) | not reported | [0.36](/filings/0001104659-26-057822.md) | [0.53](/filings/0001104659-26-092573.md) | | Free cash flow | $m | [8.4 d](/filings/0001104659-25-108388.md) | [20.7 d](/filings/0001104659-26-022367.md) | [9.8](/filings/0001104659-26-057822.md) | [26.1 d](/filings/0001104659-26-092573.md) | [23.9 d](/filings/0001104659-25-108388.md) | [(2.5) d](/filings/0001104659-26-022367.md) | [25.3](/filings/0001104659-26-057822.md) | [31.3 d](/filings/0001104659-26-092573.md) | - Revenue. XBRL not reported. - Gross margin (gross profit / revenue). XBRL not reported. - Operating margin (operating income / revenue). XBRL not reported. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss. Derived values: 12-month figure less the 9-month figure. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure. ## Last five fiscal years | Line item | Unit | FY (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) | | --- | --- | ---: | ---: | ---: | ---: | | Revenue | $m | not reported | not reported | not reported | not reported | | Gross margin | % | not reported | not reported | not reported | not reported | | Operating margin | % | not reported | not reported | not reported | not reported | | Net margin | % | not reported | not reported | not reported | not reported | | Diluted EPS | $ per share | not reported | [0.23](/filings/0001104659-26-022367.md) | [1.07](/filings/0001104659-26-022367.md) | [1.34](/filings/0001104659-26-022367.md) | | Free cash flow | $m | [31.2](/filings/0001558370-25-002457.md) | [50.0](/filings/0001104659-26-022367.md) | [41.3](/filings/0001104659-26-022367.md) | [57.4](/filings/0001104659-26-022367.md) | - Revenue. XBRL not reported. - Gross margin (gross profit / revenue). XBRL not reported. - Operating margin (operating income / revenue). XBRL not reported. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing. ## Insider purchases and sales The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/nbbk/insiders.md) None in coverage. ## Funds that report holding it From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md) | Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before | | --- | --- | ---: | ---: | --- | --- | | [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $70.4m | 3,331,544 | | Added +247,322 | | [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $35.3m | 1,670,835 | | Reduced −33,093 | | [AltraVue Capital, LLC](/funds/1740837.md) | 2026-06-30 | $35.0m | 1,655,108 | | Added +351,028 | | [Pertento Partners LLP](/funds/1894571.md) | 2026-06-30 | $31.2m | 1,475,770 | | Reduced −730,896 | | [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $31.1m | 1,471,766 | | Added +178,228 | | [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $24.4m | 1,153,217 | | Added +54,287 | | [DIMENSIONAL FUND ADVISORS LP](/funds/354204.md) | 2026-06-30 | $15.9m | 753,320 | | Added +230,936 | | [GOLDMAN SACHS GROUP INC](/funds/886982.md) | 2026-06-30 | $12.1m | 571,954 | | Reduced −119,714 | | [HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC](/funds/1164833.md) | 2026-06-30 | $10.6m | 501,172 | | Added +50,400 | | [Nuveen, LLC](/funds/1871926.md) | 2026-06-30 | $10.5m | 498,869 | | Added +10,836 | ## Recent filings [All 245 filings](/companies/nbbk/filings.md) | Filed | Accepted | Form | What it is | Accession | | --- | --- | --- | --- | --- | | 2026-10-15 | 20:15 ET | [8-K](/filings/0001104659-26-116250.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-116250 | | 2026-08-07 | 17:01 ET | [10-Q](/filings/0001104659-26-092573.md) | Quarterly report, period 2026-06-30 | 0001104659-26-092573 | | 2026-07-22 | 20:30 ET | [8-K](/filings/0001104659-26-085826.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-085826 | | 2026-05-21 | 15:30 ET | [8-K](/filings/0001104659-26-064982.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-064982 | | 2026-05-13 | 18:00 ET | [8-K](/filings/0001104659-26-060111.md) | 8.01 Other events | 0001104659-26-060111 | | 2026-05-08 | 19:01 ET | [10-Q](/filings/0001104659-26-057822.md) | Quarterly report, period 2026-03-31 | 0001104659-26-057822 | | 2026-04-29 | 19:00 ET | [8-K](/filings/0001104659-26-051401.md) | 5.07 Shareholder vote results | 0001104659-26-051401 | | 2026-04-22 | 20:33 ET | [8-K](/filings/0001104659-26-046868.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-046868 | | 2026-03-27 | 14:30 ET | [DEF 14A](/filings/0001104659-26-035829.md) | Proxy statement, period 2026-04-29 | 0001104659-26-035829 | | 2026-03-03 | 22:33 ET | [10-K](/filings/0001104659-26-022367.md) | Annual report, period 2025-12-31 | 0001104659-26-022367 | ## Latest annual report [Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001104659-26-022367.md), filed Mar 3, 2026. ## Forecast league Not in this season’s league. [This season’s league](/leagues.md) ## About the filer - CIK: 1979330 - Tickers: NBBK - Exchange: Nasdaq - SIC code: 6036 Savings Institutions, Not Federally Chartered - State of incorporation: not reported - Filer category:
Emerging growth company Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:50 ET. No prices; not investment advice.