NB Bancorp, Inc. (NBBK) SEC Filings Overview
This page provides access to NB Bancorp, Inc.’s SEC filings, which document the regulatory and financial reporting of the bank holding company for Needham Bank. As an emerging growth company with common stock listed on The Nasdaq Stock Market under the symbol NBBK, NB Bancorp files Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, among other documents.
Through these filings, investors can review information on NB Bancorp’s loan and deposit composition, net interest income and margin, noninterest income and expenses, provision for credit losses, asset quality metrics and capital management activities. Earnings-related Form 8-K filings, for example, describe quarterly financial results, including changes in commercial real estate, multi-family, construction and land development, commercial and industrial and consumer loan portfolios, as well as updates on the allowance for credit losses, non-performing loans and net charge-offs or recoveries.
NB Bancorp also uses Form 8-K to report material events such as the adoption of share repurchase plans, the declaration of dividends and significant corporate transactions. A series of 8-K and 8-K/A filings in 2025 detail the Agreement and Plan of Merger with Provident Bancorp, Inc. and BankProv, the mailing of stock and cash election materials, the receipt of all regulatory approvals, the final proration of merger consideration and the completion of the merger transaction on November 15, 2025. These filings explain the merger structure, consideration terms, allocation and proration procedures and the treatment of Provident equity awards.
On this page, users can track such filings as they are made available through EDGAR, and AI-powered tools can help summarize lengthy documents, highlight key terms and clarify complex sections. This includes identifying major items in Form 10-K and 10-Q reports, outlining the main provisions of merger-related 8-K filings and pointing to disclosures on topics such as dividend declarations, share repurchase plans and changes in the company’s governance or board composition.
NB Bancorp, Inc. (NBBK) reported an insider transaction on Form 4. A director recorded a gift of 600 shares of common stock on October 30, 2025 at a stated price of $0.
Following the transaction, the reporting person beneficially owned 91,962 shares directly and 60,000 shares indirectly through an IRA. The reported holdings include restricted stock that vests at 20% per year commencing on April 24, 2026.
NB Bancorp, Inc., the holding company for Needham Bank, describes its planned acquisition of Provident Bancorp, Inc. and its subsidiary BankProv under an existing Merger Agreement. The structure involves a merger of a Needham merger subsidiary into Provident, followed by a holding company merger leaving Needham as the surviving parent, and a later merger of BankProv into Needham Bank.
The company reports that on October 31, 2025, Needham and Provident issued a joint press release, furnished as Exhibit 99.1. The filing also includes extensive forward-looking statement disclosures, highlighting risks such as economic conditions, interest rate movements, competition, regulatory actions, integration challenges, potential termination of the merger agreement, legal proceedings, possible higher-than-expected transaction costs, management distraction, employee and customer reactions, dilution from new Needham shares issued in the deal, cybersecurity incidents, geopolitical events, and government shutdown effects.
NB Bancorp, Inc., the holding company for Needham Bank, filed a report describing progress on its planned acquisition of Provident Bancorp, Inc., the holding company for BankProv. The companies previously signed a Merger Agreement under which a special merger subsidiary will merge into Provident, followed by a merger of Provident into NB Bancorp and a later consolidation of BankProv into Needham Bank.
The report notes that NB Bancorp and Provident issued a joint press release on October 31, 2025 regarding the proposed merger and includes that release as an exhibit. It also provides an extensive cautionary statement explaining that any expectations about the timing, costs and benefits of the transaction are forward‑looking and subject to numerous economic, regulatory, operational and integration risks, including potential dilution from issuing additional NB Bancorp shares.
NB Bancorp, Inc. (NBBK) reported an insider transaction on Form 4. A director purchased 4,688 shares of common stock on 10/28/2025 at an average price of $18.0678 per share.
Following the trade, the director beneficially owns 120,000 shares directly and 80,000 shares indirectly held by spouse.
The holdings include restricted stock that vests at a rate of 20% per year commencing on April 24, 2026.
NB Bancorp, Inc. (NBBK) filed an amended Form 8-K noting two items: the company issued a press release announcing earnings for the quarter ended September 30, 2025, and its Board declared a quarterly cash dividend.
The dividend is $0.07 per share, payable on November 19, 2025 to stockholders of record as of November 5, 2025. The earnings details are contained in an accompanying press release included as Exhibit 99.1.
NB Bancorp, Inc. (NBBK) reported two updates. The company issued a press release announcing its earnings for the quarter ended September 30, 2025. The press release is furnished as Exhibit 99.1 and is not deemed filed under Section 18.
The Board declared a cash dividend of $0.07 per share. The dividend will be paid on November 19, 2025 to stockholders of record as of November 5, 2025. This represents a direct cash return to shareholders on the stated dates and terms.
NB Bancorp, Inc. (Needham) filed an 8-K noting a joint press release with Provident Bancorp about Needham’s proposed acquisition of Provident, originally announced on June 5, 2025. The press release is furnished as Exhibit 99.1.
The filing includes a forward‑looking statements caution highlighting risks that could affect completion and outcomes, including changes in economic conditions, interest rate movements, regulatory actions, and competitive dynamics. It also lists transaction‑specific risks such as failure to satisfy closing conditions, potential termination rights, integration challenges, and potential dilution from issuing additional shares in connection with the transaction.
NB Bancorp, Inc. (NBBK) filed an 8-K disclosing procedural details about an upcoming shareholder election tied to a material event. The filing states an Election Deadline will occur on November 7, 2025, with an earlier deadline of October 31, 2025 for shares held through the Provident ESOP and 401(k) plans. The company and Needham will announce the definitive Election Deadline at least five but not more than fifteen business days before that date. The 8-K also references a October 8, 2025 press release and attached election materials and interactive cover page data.
Christopher R. Lynch, a director of NB Bancorp, Inc. (NBBK), reported an insider transaction dated 09/16/2025. The filing shows a sale of 600 shares of common stock for $0 (reported price $0), leaving Mr. Lynch with 92,562 shares held directly and an additional 60,000 shares held indirectly through an IRA. The filing notes 60,000 IRA holdings and that included restricted shares vest at 20% per year beginning April 24, 2026. The Form 4 was signed under power of attorney on 09/18/2025.
Kenneth C. Montgomery, a director of NB Bancorp, Inc. (NBBK), purchased 5,000 shares of the company's common stock on 09/12/2025 at a reported price of $18.44 per share, increasing his total beneficial ownership to 80,337 shares. The reported total includes restricted stock that vests at a rate of 20% per year beginning on April 24, 2026, indicating portions of the holdings are subject to future vesting rather than immediate sale.
The Form 4 reports a direct acquisition and shows no derivative transactions or dispositions. The filing was submitted under power of attorney on behalf of the reporting person.