Siebert Financial names John M. Gebbia to board after Gloria E. Gebbia resignation
SIEB•Siebert Financial named John M. Gebbia to its board on Sept. 22, 2026, filling a vacancy after Gloria E. Gebbia resigned that day. John M. Gebbia is co-CEO of subsidiary Muriel Siebert & Co. and has brokerage industry experience dating to 1990.
1. Board appointment
Siebert Financial named John M. Gebbia to its board on Sept. 22, 2026, filling the vacancy created by Gloria E. Gebbia’s resignation that day. John M. Gebbia is co-CEO of subsidiary Muriel Siebert & Co. and has worked in the brokerage industry since 1990.
