Kennedy-Wilson Holdings, Inc. (NYSE: KW) traces its public-markets debut to Prospect Acquisition Corp., a blank-check company that completed its IPO in 2007 and filed its S-1/A amendment with the SEC on September 10, 2007. The SPAC was sponsored by Prospect Management LLC, whose principals were closely affiliated with Kennedy-Wilson, Inc., a California-based real estate investment and services firm operating across multifamily, commercial, and hotel asset classes. Prospect Acquisition Corp. completed its de-SPAC merger with Kennedy-Wilson, Inc. in November 2009, creating the publicly traded Kennedy-Wilson Holdings and establishing the combined company's presence across the United States, Europe, and the Asia-Pacific region. For full filing history, deal terms, and sponsor data on KW and hundreds of other SPAC transactions, sign up for SpacDesk.