Siebert Financial Corporation declared that Suzanne Shank takes over as acting chief executive officer of the company and its wholly owned subsidiary, Muriel Siebert & Co Inc, as of 16 September 2013. The company was founded by Muriel F "Mickie" Siebert who died on 24 August 2013. Its board of directors named current board members Jane H Macon as chair and Robert Mazzarella as vice chair.

Shank will continue as president and CEO of the municipal finance firm Siebert Brandford Shank & Co LLC, which she co-founded with Siebert and Napoleon Brandford in 1996.