X0609 4 2026-08-26 0 0001392272 CHAIN BRIDGE BANCORP INC CBNA 0002036664 Evinger David M. false 1445-A LAUGHLIN AVENUE MCLEAN VA 22101 1 1 0 0 President, Chief Risk Officer 0 Class B Common Stock 2026-08-26 2026-08-26 4 G 0 340 0 D Class A Common Stock 340 340 D Class B Common Stock 2026-08-26 2026-08-26 4 G 0 340 0 D Class A Common Stock 340 0 D Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. The reported securities were transferred as bona fide gifts to the reporting person's adult children. Following the transfers, the reporting person no longer holds any beneficial interest in the transferred securities. The shares transferred were held indirectly, co-owned with the reporting person's adult children. The zero beneficial ownership reflects only that co-owned indirect holding following the gifts and does not affect the reporting person's directly held shares. /s/ Hilary Albrecht, attorney-in-fact 2026-08-28