How many insider trades does FilingIQ track for NBBK?

FilingIQ tracks 126 Form 4 insider transactions for NBBK (NB Bancorp, Inc.), covering filings from Dec 28, 2023 onwards. 33 of those were filed in the last 90 days.

Are NBBK insiders net buyers or net sellers?

Across the full Form 4 history for NBBK, 75 transactions (60%) were open-market purchases and 0 (0%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does NBBK insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is NBBK in?

NB Bancorp, Inc. (NBBK) is classified in the Financial Services sector, specifically Banks - Regional, with a current market capitalisation of $932.85M.

NBBK insider trading

NasdaqCM Financial Services

NB Bancorp, Inc. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

126

Last 90 days

Buys / sells

60% / 0%

Market cap

$932.85M

About NB Bancorp, Inc.

NB Bancorp, Inc. focuses on operating as a bank holding company for Needham Bank that provides various banking products and services in the Greater Boston metropolitan area and surrounding communities in the United States. The company offers various deposits, including certificate of deposit, individual retirement, money market, savings, NOW, demand deposit, and interest-bearing and noninterest-bearing checking accounts; and commercial real estate and multifamily residential loans, one- to four-family residential real estate, mortgage warehouse loans, construction and land development, commercial and industrial, and consumer loans, as well as home equity loans and lines of credit. It also invests in securities consisting of U.S. treasury and federal agency securities, government-sponsored residential mortgage-backed securities, corporate bonds, SBA securities and municipal bonds. NB Bancorp, Inc. was founded in 1892 and is based in Needham, Massachusetts.

Company website: nbbancorp.com

NBBK insider activity at a glance

FilingIQ has scored 126 insider transactions for NBBK since Dec 28, 2023. The most recent filing in our index is dated Apr 24, 2026.

Across the full history, 75 open-market purchases and 0 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on NBBK insider trades is 59.2/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live NBBK trades on FilingIQ Raw filings on SEC EDGAR

Latest NBBK Form 4 filings

CAMPANELLI JOSEPH P President & CEO

P Aug 2, 2024

CAMPANELLI JOSEPH P President & CEO

P Apr 26, 2024

CAMPANELLI JOSEPH P President & CEO

P Mar 8, 2024

CAMPANELLI JOSEPH P President & CEO

P Mar 1, 2024

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

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Frequently asked

How many insider trades does FilingIQ track for NBBK?: FilingIQ tracks 126 Form 4 insider transactions for NBBK (NB Bancorp, Inc.), covering filings from Dec 28, 2023 onwards. 33 of those were filed in the last 90 days.
Are NBBK insiders net buyers or net sellers?: Across the full Form 4 history for NBBK, 75 transactions (60%) were open-market purchases and 0 (0%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does NBBK insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is NBBK in?: NB Bancorp, Inc. (NBBK) is classified in the Financial Services sector, specifically Banks - Regional, with a current market capitalisation of $932.85M.

Methodology & sources

Every NBBK insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.