X0609 4 2026-10-15 0 0001934642 MDB Capital Holdings, LLC MDBH 0000897744 MARLETT CHRISTOPHER A false 14135 MIDWAY ROAD, SUITE G-150 ADDISON, TX 75001 1 1 1 0 Co-Founder 0 Common Stock 2026-10-15 4 P 0 917 1.93 A 180850 D The reported price in Column 4 is an average purchase price. The shares acquired on October 15, 2026 were purchased in multiple transactions at prices ranging from $1.87 to $1.93 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Christopher Marlett 2026-10-16