Martha Stewart Living Omnimedia Inc. (MSO) is a diversified media and merchandising company founded by Martha Stewart owned by Sequential Brands Group since December 4, 2015. It is organized into four business segments: Publishing, Internet, Broadcasting media platforms, and Merchandising product lines.
Sequential Brands Group has not owned MSO for four years.
Sequential Brands Group has owned MSO since December 2015, so it's only been three full years. The system probably saw the "not" and "four" and assumed the statement was incorrect.