 Shares of IAA Inc. IAA, 5.01 surged 5.3 toward a fifth-straight gain in morning trading Tuesday, after activist investor Ancora Holdings Group LLC urged fthe vehicle auctions company to change its leadership or seek a sale. In a letter to IAAs board, Ancora said given IAAs underperformance versus its peers and the broader market, the status quo cannot persist, and believed the board should replace Chief Executive John Kett with someone more dynamic and equipped to reinvigorate the organization. 