Board of Directors

LeRoy T. Carlson, Jr., Chairman

LeRoy T. Carlson, Jr., is chairman of United States Cellular Corporation, a publicly traded subsidiary of TDS. Carlson is president and chief executive officer, and a director, of TDS. He is also chairman and a director of TDS Telecommunications Corporation, a wholly owned subsidiary of TDS.

Walter C.D. Carlson, Director

Walter C.D. Carlson has been a partner of the law firm of Sidley Austin LLP for more than 20 years, and is a member of its executive committee. He is also chairman (non-executive) of the board of TDS, of which United States Cellular Corporation is a publicly traded subsidiary.

J. Samuel Crowley, Director

J. Samuel Crowley is a private investor. He was previously chief operating officer of Gold’s Gym International, Inc. Crowley also served as senior vice president—new ventures at Michaels Stores, Inc., and was a business strategy consultant with Insider Marketing. Prior to that, Crowley was employed by CompUSA, Inc., most recently as executive vice president of operations.

Ronald E. Daly, Director

Ronald E. Daly is a private investor. He was previously president and chief executive officer of Océ-USA Holding, Inc. Prior to that, Daly was with RR Donnelley, most recently as president of RR Donnelley Print Solutions. Mr. Daly is also a director of SUPERVALU, Inc.

Harry Harczak,, Jr., Director

Harry Harczak, Jr., is a private investor, and a managing director of Sawdust Investment Management. He was previously with CDW Corporation, where he served successively as chief financial officer and executive vice president of sales, marketing and business development. Prior to that, Harczak was a partner at PricewaterhouseCoopers LLP. He is also a director of Tech Data Corporation.

Michael S. Irizarry, Ph.D, Director

Michael S. Irizarry is Executive Vice President and Chief Technology Officer, Engineering and Information Services of U.S. Cellular. Irizarry joined U.S. Cellular in 2002 and oversees the company's information systems and technology as well as all of the company's wireless technological operations. Irizarry leads network build-outs, network operations and technological advancements that include Voice over LTE (VoLTE) expansions and 5G network testing. Prior to joining U.S. Cellular, Irizarry held executive positions with Verizon, Bell Atlantic Mobile, and Paging Network, Inc. He is a senior member of the Association for Computing Machinery as well as the I.E.E.E. and its communications and computer societies.

Gregory P. Josefowicz, Director

Gregory P. Josefowicz is a private investor. He was previously with Borders Group, Inc., where he served as director, president, and chief executive officer, and later board chairman; and was most recently a non-exclusive, senior-level consultant. Prior to that, Josefowicz was chief executive officer of the Jewel-Osco division of American Stores Company, and then president of the Midwest region for Albertson’s. Josefowicz is currently a director of PetSmart, Inc., and of Winn-Dixie Stores, Inc.

Peter L. Sereda, Director

Peter L. Sereda is senior vice president - finance of TDS, which owns 84 percent of U.S. Cellular. He has held this position since 2011. Sereda is responsible for long- and short-term financing, cash and investment management, commercial and investment bank relationships, risk and pension asset management, and stock repurchases and other equity capital markets transactions. Sereda joined TDS in 1998 as vice president and treasurer. Prior to joining TDS, Sereda held senior leadership positions with Specialty Foods Corporation and Duchossois Industries, Inc.

Cecelia D. Stewart, Director

Cecelia D. Stewart is former president of U.S. Consumer and Commercial Banking for Citigroup, Inc. Stewart was previously president of Morgan Stanley Smith Barney's Retail Banking Group and CEO of Morgan Stanley Private Bank, responsible for all consumer and commercial banking. Prior to that, she held several executive vice president positions at Wachovia, managing customer service and sales. Stewart is also a director of First Horizon National Corporation.

Kurt B. Thaus, Director

Kurt B. Thaus is senior vice president, technology services of TDS, which owns 82 percent of U.S. Cellular. He is responsible for all elements of TDS’s information technology functions and the customer-facing hosted and managed products and services offered by OneNeck IT Solutions. Prior to joining TDS, Thaus held senior leadership positions with T-Systems North America, Inc., a subsidiary of T-Systems International (Deutsche Telecom) and Waste Management, Inc.

Laurent C. Therivel , Director

Laurent C. Therivel (“LT”) is president and CEO of U.S. Cellular, TDS' majority-owned subsidiary. He joined U.S. Cellular in 2020. Therivel, joined U.S. Cellular from AT&T where he served most recently as CEO of AT&T Mexico. Prior to that, Therivel served as Chief Operating Officer for IPcelerate, Inc., a Voiceover- IP applications development company.