144 0001972425 XXXXXXXX LIVE 0000350894 SEI INVESTMENTS CO 000-10200 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000 Warner Mark Andrew Officer Common Charles Schwab & Co., Inc.

3000 Schwab Way Westlake TX 76262

4000 364640.00 120272976 04/28/2026 NASDAQ Common 04/28/2026 Employee Stock Option Exercise SEI INVESTMENTS CO N 4000 04/28/2026 Broker Payment for Cashless Exercise N Mark Andrew Warner

1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100

SEI INVESTMENTS CO 02/25/2026 4000 326964.00 04/28/2026 Mark Andrew Warner