Sonya Weigle, Marinus Pharmaceuticals

Sonya Weigle built a successful career, but she also had obligations. More than obligations, they were priorities. With a young, growing family at home, she knew the professional path she carved out for herself wasn’t sustainable, so she made some tweaks. Nevertheless, Weigle continued to achieve. Now, three decades later and with an increasing sense of autonomy in her life, the seasoned executive is prepared to make what could be her most ambitious and inspired pivot yet – the launch of a brand new, dynamic community for fellow women leaders. Women to Watch host Sue Rocco catches up with Weigle, who shares her vision for The Catalytic Collective and explains why it’s never too late to put yourself first.

Sonya Weigle, Chief People and Investor Relations Officer, Marinus Pharmaceuticals, shared the story behind her title with us on March 26, 2025.

Sonya brings over 25 years of experience transforming organizations through change management, organizational development and human capital strategy.

Prior to joining Marinus, Sonya was the founding principal of SWC Management Consulting, a 21-year-old human capital strategy consulting practice focused primarily on M&A integration in the life sciences, pharmaceutical and biotech industries. SWC worked on both the buy side and sell side to assess cultural, behavioral, structural and process fit to help clients mitigate against the 80 percent failure rate of most M&A transactions. Sonya also hosted a live weekly radio show called, “Beyond Financials: The People Side of Mergers & Acquisitions”. Sonya started her career in global consulting as part of the executive compensation, communications and human resource transformation practices at Mercer Consulting. After Mercer, Sonya joined Accenture in their change management practice and would eventually become the AVP of Human Resources for five lines of business at ACE, a global property & casualty insurance company.

Sonya holds a BS in Political Science, English and Psychology from The University of Pittsburgh and an MS in Management focused on human resources and strategy from Carnegie Mellon University. Sonya has been recognized by the Philadelphia Tribune and the American Arthritis Foundation as a “Woman on the Move”, was given the Leadership Award by the MS Society and was of named one Philadelphia’s Top 40 Business People Under 40 by the Philadelphia Business Journal. Sonya serves on many Boards, most recently The Nelson Foundation, The Philadelphia Film Society, the Board of Directors for Chamber of Commerce for Greater Philadelphia, City Team Ministries, The United Way of Greater Philadelphia and Southern New Jersey, The Finance Committee of The Agnes Irwin School Board of Trustees and the Haverford Leadership Council of The Haverford School Board of Trustees.