Siebert Brandford Shank and Co. LLC, the No. 14 senior manager of bond issues by par amount in 2012, appointed recent New York City mayoral candidate and former comptroller Bill Thompson as chief administrative officer and senior managing director. The firm also promoted Sean Werdlow to chief operating officer.
Thompson previously served at Siebert from 2010 until 2013, when he began his run for mayor. Werdlow, who was Detroit’s chief financial officer from 2002 to 2005, has been managing director at Siebert since 2005. Thompson and Werdlow will both report to chief executive officer Suzanne Shank.