Jackson Acquisition, a blank check company led by Jeb Bush targeting healthcare, filed on Thursday with the SEC to raise up to $300 million in an initial public offering. The Alpharetta, GA-based company plans to raise $300 million by offering 30 million units at $10. Each unit consists of one share of common stock and 1/3 of a warrant, exercisable at $11.50. At the proposed deal size, Jackson Acquisition will command a market value of $375 million. The company is led by Chairman Jeb Bush, who previously was the 43rd Governor of Florida from 1999 to 2007. He is joined...