LYTIR

Company · CBNA

Chain Bridge Bancorp, Inc.

Name as listed on its exchange; filed with the SEC as CHAIN BRIDGE BANCORP INC.

Nasdaq's symbol directory lists CBNA on the New York Stock Exchange as “Chain Bridge Bancorp, Inc. Class A Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 1 occasion ($18K); 1 filing by holders of 5% or more; 2 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. MARTINELLI MARK bought on 1 day latest Jul 29, 2026 bought $18K
Every trade (1)
  1. BUYMARTINELLI MARK bought Jul 29, 2026 400 shares filing $18K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. Hingham Institution for Savings filed Jul 20, 2026 Schedule 13G passive 334,137 shares filing 9.9%

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Regulation FD disclosure filing Oct 28, 2026
  2. Results of operations and financial condition filing Oct 28, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.