Mr. Zimmerman joined Apollo in 2021. Prior to that time, Mr. Zimmerman was a Vice President at One Rock Capital Partners, LLC from August 2014 to November 2020. Prior to that, Mr. Zimmerman was an Analyst in the Healthcare coverage group within the Investment Banking Division at Barclays from June 2012 to June 2014. Mr. Zimmerman graduated from Boston College with a BA degree in Economics and with minors in Math and Chemistry.