Picture of Dan A. Peisert
Dan A. Peisert President, Chief Executive Officer & Director

Mr. Peisert has served as president, chief executive officer, and director of Assertio since January 2021. Mr. Peisert joined Assertio as vice president, business development in September 2017 and previously held the roles of senior vice president, business development and chief financial officer for the company. Most recently he served in the position of vice president of Concordia International Corp.’s US Legacy Pharmaceuticals business where he had full P&L responsibility for the business unit. Prior to this, he was vice president, business development for Concordia and was responsible for executing on the strategic M&A plan. From 2008 to 2012, Mr. Peisert was director of finance and business development for Marathon Pharmaceuticals, a privately held specialty pharmaceutical company. Prior to entering the pharmaceutical industry, he was a healthcare equity analyst and portfolio manager for Magnetar Capital and UBS O’Connor and began his career as an auditor for Price Waterhouse Coopers. Mr. Peisert holds a bachelor’s of science in business with an emphasis on accounting from the University of Minnesota.

Picture of Sarah Longoria
Sarah Longoria Vice President, Human Resources

Ms. Longoria joined Assertio as Vice President, Human Resources in May 2020. She brings over 18 years of global human resources leadership to this role. Most recently, she worked at Abbott, a Fortune 100 diversified healthcare company, as head of human resources for transfusion medicine and informatics, two global divisions within the diagnostics segment. Prior to this role, Ms. Longoria led the HR integration for one of the largest acquisitions in the history of Abbott. She has held various other worldwide human resources leadership positions for other operating businesses within Abbott throughout her career. Ms. Longoria received a bachelor of business administration in human resources management from the University of Wisconsin – Whitewater.