Sam Rosner is an experienced finance professional currently serving in Finance Operations at Kalshi since October 2025. Prior to this role, Sam held various positions at Lignetics from January 2021 to October 2025, including Regional Controller for the West, Accounting Manager for the West Region, and Senior GL Accountant. Additionally, Sam worked as a Senior Accounting Analyst at Millennium Partners from March 2012 to October 2020 and as a Senior Associate in the Investment Management Group at PricewaterhouseCoopers from September 2007 to March 2012. Sam holds a Bachelor of Science (B.S.) in Accounting and Finance from The Ohio State University Fisher College of Business, completed in 2007.
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