{"filing":{"accession_number":"0001104659-26-085826","cik":"0001979330","ticker":"NBBK","company_name":"NB Bancorp, Inc.","form":"8-K","filing_date":"2026-07-22","report_date":null,"primary_document":"nbbk-20260722x8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1979330/000110465926085826/nbbk-20260722x8k.htm"},"events":[{"id":19601,"run_id":17635,"accession_number":"0001104659-26-085826","anchor_item_number":"2.02","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"summary":"NB Bancorp issued a press release on July 22, 2026 announcing its second quarter 2026 financial results, including net income of $21.1 million ($0.53 per diluted share), net interest margin expansion to 4.00%, and key operating metrics such as return on average assets of 1.17% and return on average equity of 10.03%.","company_name":"NB Bancorp, Inc.","ticker":"NBBK","filing_date":"2026-07-22","form":"8-K","submitted_at":null,"items":[{"id":18731,"accession_number":"0001104659-26-085826","item_number":"2.02","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"NB Bancorp issued a press release on July 22, 2026 announcing its second quarter 2026 financial results, including net income of $21.1 million ($0.53 per diluted share), net interest margin expansion, and loan/deposit growth metrics. The filing explicitly states the press release is included as Exhibit 99.1 and discloses quarterly earnings results, which is the hallmark of an earnings_release event under Item 2.02. The disclosure also includes a dividend declaration, but the primary event is the earnings announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"","ticker":null,"filing_date":""},{"id":18732,"accession_number":"0001104659-26-085826","item_number":"7.01","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"NB Bancorp disclosed its second quarter 2026 financial results via press release on July 22, 2026, reporting net income of $21.1 million ($0.53 per diluted share) and operating net income of $21.9 million ($0.55 per diluted share), along with key metrics including return on average assets (1.17%), return on average equity (10.03%), and net interest margin expansion to 4.00%. The company also declared a quarterly cash dividend of $0.07 per share. This is a standard earnings release disclosure material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":19602,"run_id":17635,"accession_number":"0001104659-26-085826","anchor_item_number":"8.01","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"The Board declared a quarterly cash dividend of $0.07 per share, payable August 19, 2026 to shareholders of record as of August 5, 2026.","company_name":"NB Bancorp, Inc.","ticker":"NBBK","filing_date":"2026-07-22","form":"8-K","submitted_at":null,"items":[{"id":18733,"accession_number":"0001104659-26-085826","item_number":"8.01","item_title":null,"event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"The Item 8.01 disclosure announces the Board's declaration of a quarterly cash dividend of $0.07 per share, payable August 19, 2026 to shareholders of record as of August 5, 2026. This is a routine but material dividend declaration that affects shareholder returns and is supported by the press release (Exhibit 99.1) which also reports Q2 2026 earnings results.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":18731,"accession_number":"0001104659-26-085826","item_number":"2.02","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"NB Bancorp issued a press release on July 22, 2026 announcing its second quarter 2026 financial results, including net income of $21.1 million ($0.53 per diluted share), net interest margin expansion, and loan/deposit growth metrics. The filing explicitly states the press release is included as Exhibit 99.1 and discloses quarterly earnings results, which is the hallmark of an earnings_release event under Item 2.02. The disclosure also includes a dividend declaration, but the primary event is the earnings announcement.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"NB Bancorp, Inc.","ticker":"NBBK","filing_date":"2026-07-22"},{"id":18732,"accession_number":"0001104659-26-085826","item_number":"7.01","item_title":null,"event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"NB Bancorp disclosed its second quarter 2026 financial results via press release on July 22, 2026, reporting net income of $21.1 million ($0.53 per diluted share) and operating net income of $21.9 million ($0.55 per diluted share), along with key metrics including return on average assets (1.17%), return on average equity (10.03%), and net interest margin expansion to 4.00%. The company also declared a quarterly cash dividend of $0.07 per share. This is a standard earnings release disclosure material to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"NB Bancorp, Inc.","ticker":"NBBK","filing_date":"2026-07-22"},{"id":18733,"accession_number":"0001104659-26-085826","item_number":"8.01","item_title":null,"event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.95,"reasoning":"The Item 8.01 disclosure announces the Board's declaration of a quarterly cash dividend of $0.07 per share, payable August 19, 2026 to shareholders of record as of August 5, 2026. This is a routine but material dividend declaration that affects shareholder returns and is supported by the press release (Exhibit 99.1) which also reports Q2 2026 earnings results.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:33:56.705616+00:00","company_name":"NB Bancorp, Inc.","ticker":"NBBK","filing_date":"2026-07-22"}]}