On March 1, 2013, Leucadia National Corporation acquired Jefferies Group LLC. in a tax-deferred acquisition. The Form 8-K for Jefferies (ticker JEF, cik1084580) describes the transaction and was filed with the SEC on November 13, 2012. You can access theForm 8-K at the SEC's Investor website (www.sec.gov/edgar/searchedgar/webusers.htm). Read "Item 1.01, Entry into a Material Definitive Agreement" and determine which form of merger was used to affect the acquisition.