Management

Picture of Jeff Christensen
Jeff Christensen Senior Vice President, Commercial
More

Mr. Christensen has served as Senior Vice President, Commercial of Assertio since May 2021. Mr. Christensen oversees all of Assertio’s commercial strategy and operations including marketing, managed markets, and analytics.

Most recently he served in the position of Vice President and General Manager, Pain Business Unit for TerSera Therapeutics, where he had full P&L responsibility and drove initiatives to increase profitability. At TerSera, he also led a multifunctional team to launch new products and create strategic brand plans.

Prior to this, he was Senior Director, Marketing Lead at Jazz Pharmaceuticals and has held several progressive leadership positions in health systems marketing and reimbursement, managed markets, and analytics. Prior to Jazz, he was Director, Hemophilia Payer Marketing at Pfizer and built a broad commercial skillset with roles in sales and account management.

Mr. Christensen holds a bachelor’s degree in biology from Gustavus Adolphus College and a Master of Business Administration degree from the University of St. Thomas.

Picture of Max Nemmers
Max Nemmers Head, Investor Relations and Administration
More

Mr. Nemmers has served as Head, Investor Relations and Administration of Assertio since February 2021. Mr. Nemmers joined Assertio as Director, Human Resources in February 2019 with responsibility for the Company’s investor relations, communications, succession planning, and leadership development.

Most recently he served in the position of Senior Human Resources Business Partner for Takeda Pharmaceuticals, where he held responsibility for leading the analytical and executional human capital strategy for multiple commercial functions within Takeda’s general medicines business unit.

Prior to this, he worked for Alcon’s surgical business and Abbott Laboratories’ medical optics, vascular, and diabetes care businesses in several progressive leadership roles in mergers and acquisitions, analytics, and strategy development.

Mr. Nemmers holds a bachelor’s degree in communications from Arizona State University. He is a passionate advocate for early childhood education and is a member of the Board of Directors of United Way of Lake County, Illinois, and the Development Board of Kohl Children’s Museum of Greater Chicago.

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

Mr. Peisert has served as President, Chief Executive Officer, and Director of Assertio since December 2020. Mr. Peisert joined Assertio as Vice President, Business Development in September 2017 and previously held the roles of Senior Vice President, Business Development and Senior Vice President 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. Previously, Mr. Peisert was Director, 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 for Magnetar Capital and a Portfolio Manager for UBS O’Connor and began his career as an Auditor for Price Waterhouse Coopers.

Mr. Peisert holds a bachelor’s degree in business with an emphasis on accounting from the University of Minnesota.

Picture of Paul Schwichtenberg
Paul Schwichtenberg Senior Vice President, Chief Financial Officer
More

Mr. Schwichtenberg has served as Senior Vice President, Chief Financial Officer of Assertio since March 2021. Mr. Schwichtenberg joined Assertio as Vice President, Finance in April 2018 and has been instrumental in leading Assertio’s financial planning and analysis, financial reporting and controls, gross-to-net planning, risk management, business development due diligence, and modeling.

Most recently he served in the position of Director, Pricing and Planning at AbbVie, where he led the US Commercial Pricing Team of 63 professionals responsible for commercial, institutional and government contracting, government price reporting, financial reporting, and financial planning.

Prior to this, he was a Controller for Radio Flyer, Inc., and Takeda Pharmaceuticals, where he executed numerous enhancements to reporting technology to identify margin opportunities as well as integrated acquisitions across the consumer and pharmaceutical space.

Prior to entering the pharmaceutical industry, he was a senior auditor at Wolf & Company LLP. Mr. Schwichtenberg holds a bachelor’s degree in business administration from Roosevelt University and is a certified public accountant (CPA).

Picture of Bill Iskos
Bill Iskos Senior Vice President, Operations
More

Mr. Iskos has served as Senior Vice President, Operations of Assertio since August 2021. Mr. Iskos is responsible for manufacturing, quality, supply chain, regulatory, business development related diligence, and alliance management of contracted services.

Mr. Iskos brings more than 28 years of diverse experience in pharmaceutical process research and development, clinical and commercial manufacturing, supply chain and logistics, and quality assurance of potent, specialty/orphan, generic, and biologic pharmaceutical products that incorporated several drug delivery technologies and devices. Prior to rejoining Assertio, Mr. Iskos served as a Principal CMC consultant for numerous life sciences companies, and held roles of increasing responsibility at Horizon Therapeutics, Abbott Laboratories, Pfizer, Pharmacia, and Searle. Throughout his career spanning the pharmaceutical life cycle, Mr. Iskos has built a proven ability to strategically develop and lead highly successful global operations groups across several operating models.

Mr. Iskos holds a bachelor’s degree in Chemical Engineering from the University of Illinois at Chicago.

Picture of Ajay Patel
Ajay Patel Senior Vice President, Chief Accounting Officer
More

Mr. Patel has served as Senior Vice President, Chief Accounting Officer of Assertio since March 2021. Mr. Patel joined Assertio as Vice President, Controller in July 2019 with responsibility for all accounting policies and practices, internal controls, income taxes and reporting.

Most recently he served in the position of Director, Technical Accounting & Accounting Policy at US Foods, where he oversaw implementation of company-wide accounting policies and helped lead acquisition financial due diligence, with a focus on quality of earnings review and accounting integration activities. Prior to this, he spent 11 years with Ernst & Young holding multiple positions of increasing responsibility in its Assurance practice leading financial statement audits of strategic key clients.

Mr. Patel holds a bachelor’s degree in finance from the University of Illinois, a master’s degree in accounting from the University of Virginia and is a certified public accountant (CPA).

Picture of Sam Schlessinger
Sam Schlessinger Senior Vice President, General Counsel
More

Mr. Schlessinger has served as Senior Vice President, General Counsel of Assertio since July 2021. Mr. Schlessinger joined Assertio as Senior Corporate Counsel in May 2020 and more recently served as Vice President, Legal, overseeing SEC reporting, corporate governance, due diligence and new business development, capital markets and licensing transactions, litigation, intellectual property, and compliance.

Most recently he served in the position of Corporate Partner for Dentons, LLP where he advised public and privately held clients in mergers and acquisitions, buyouts and recapitalizations, and securities transactions. In this role, he had significant transactional experience representing private equity and other clients in acquisitions and divestitures in regulated industries, with a specialty in healthcare.

Prior to this, he was a Corporate Associate at McDermott Will & Emery LLP, where he focused on pharmaceutical monetization agreements, private equity transactions, leveraged buyouts, mergers and acquisitions, divestitures, and reorganizations.

Mr. Schlessinger holds a bachelor’s degree in mathematics from the Pomona College and a juris doctorate from the University of Illinois.