HD Partners Acquisition Corp (Nasdaq: HDP) was a blank-check special purpose acquisition company sponsored by HD Partners LLC, formed to pursue a business combination in the financial services sector. The company completed its IPO in 2007, raising capital during a period of active SPAC issuance that preceded the 2008 financial crisis. A January 2009 SC 13G/A amendment filed under accession 0001011443-09-000046 reflects updated beneficial ownership disclosures from an institutional holder, a routine reporting obligation triggered by changes in a qualifying stake. By early 2009 HDP was navigating a challenging deal environment amid broad market dislocation. Sign up at SpacDesk for the full ownership history, deal timeline, and institutional filing archive on HDP and hundreds of other SPACs.