Millions lose out as job changes trigger involuntary 401(k) rollovers Seeking AlphaForgotten 401(k) Accounts Are Costing Americans Billions in Lost Investment Gains The Wall Street JournalCommon mistakes people make when it comes to rolling over their 401(k) KATV$2.1 Trillion of Forgotten Assets JD SupraThree Mistakes People Make When Transferring Their 401(k)s to IRAs MSN