NB Bancorp, Inc. Stock: price and insider trades · United States

Headquartered in United States, NB Bancorp, Inc. is a listed company and traces its origins to 2023. Filings by its managers are published through SEC (Form 4). From 18 October 2025 to 18 October 2026, the disclosure feed for NB Bancorp, Inc. logged 50 filings by 22 insiders.

Both sides are active: 17 purchases worth €801k and 1 sale worth €40k, from 5 insiders and 1 insider respectively. On balance, insiders were net buyers of €762k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Elliott Mary Susan filed the largest purchase, €180k, on 30 January 2026. Among those who bought: 3 senior executives, 1 finance chief and 1 chief executive.

In the case of 12 purchases, another manager of the company was buying within the same 30 days. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time. The clock since the last published purchase (21 August 2026) now reads 58 days. Typically, a trade is published a median of 3 days after it takes place. For comparison, the SEC allows two business days to file a Form 4.

For context, the typical company on the same exchange (median of 5,808 companies) published 19 filings over the same period, against 50 filings here. Since 2023, the database holds 55 purchases and 1 sale by insiders of the company. For the fiscal year to 31 December 2025, the annual 10-K puts net income at 50.3 m USD.

Elsewhere in the same market, our signals recently picked up insider purchases at GameStop Corp. and Heico Corp. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.