144 0001229083 XXXXXXXX LIVE 0000030305 DUCOMMUN INC /DE/ 001-08174 600 ANTON BOULEVARD SUITE 1100 COSTA MESA CA 92626 657-335-3665 BALDRIDGE RICHARD A Director Common Charles Schwab Corp.

3000 Schwab Way Westlake TX 76262

17800 2756419.00 15085559 05/14/2026 NYSE Common 05/01/2014 Restricted Stock Award Issuer N 17800 05/01/2014 NA N RICHARD BALDRIDGE

600 Anton Boulevard, Suite 1100 Costa Mesa CA 92626

Common 03/10/2026 10440 1365823.76 Shares acquired from since original date 05/01/2014 to 04/26/2024. Shares will be sold from account registered to: The Richard & Donna Baldridge Family Trust. 05/14/2026 Richard Baldridge