Arindam Kar chairs Polsinelli’s Antitrust Practice and helps companies navigate competition risk in high-stakes transactions, government investigations, and day-to-day business decisions. He advises on merger review, joint ventures, group purchasing arrangements, pricing and distribution strategies, compliance programs and  investigations. Arindam represents clients before the Federal Trade Commission, the U.S. Department of Justice, and state Attorneys General. His approach is to translate complex antitrust rules into practical options aligned with each client’s business objectives. His work with clients has resulted in his recognition multiple times as Best Lawyers® “Lawyer of the Year” for Antitrust Law. In addition to his antitrust practice, Arindam has managed counseling higher education clients on a number of issues ranging from data privacy, free expression on campus, 

Arindam regularly counsels clients in industries including agribusiness, animal genetics and nutrition, health care, manufacturing, pharmaceuticals, and retail. He has experience advising on key business and legal issues involving e-commerce, traditional distribution arrangements, price discrimination, resale price maintenance, and other complex pricing issues. He helps clients prevent and manage enforcement risk by developing antitrust compliance programs, conducting audits and assisting with the practical implementation of resulting recommendations. When concerns arise, he conducts internal investigations and represents companies and individuals in federal and state antitrust investigations. His background also includes litigation and trial experience.

In addition to his antitrust practice, Arindam serves as outside general counsel to emerging innovation companies and trade associations, coordinating multidisciplinary legal support as they manage risk and pursue growth. He also advises higher education institutions on antitrust risk, data privacy, campus free-expression issues, immigration, institutional compliance and risk management.

Arindam previously served as co-chair of the American Bar Association Antitrust Law Section’s Agriculture and Food Committee and is a past chair of The Missouri Bar’s Antitrust and Mergers and Acquisitions Committee.

His community leadership includes service as a trustee of Saint Louis University and the Gateway Arch Park Foundation and as past board chair of Mid-America Transplant, a federally designated organ procurement organization, and the International Institute of St. Louis, an immigrant-services and refugee-resettlement organization. Arindam also handles pro bono immigration matters and helped support the St. Louis region’s resettlement of Afghan special immigrant visa holders, humanitarian parolees and refugees following the fall of Kabul. He was also a founding appointed member of the St. Louis City-County Governance Task Force, which studied potential reforms to improve the effectiveness of local government across the region.