Mark Martinelli bought $18K of CBNA stock

Mark Martinelli, Dir of Chain Bridge Bancorp Inc (CBNA), bought 400 shares of CBNA stock worth $18K, per an SEC Form 4 filed Jul 31, 2026.

It was an open-market purchase.

The trade happened on Jul 29, 2026, 2 days before it was made public.

CBNA has moved +19.0% since the trade date, from $44.36 to $52.77 (Nov 13, 2026 close).