@longhornfan1970 , having read through all the valuable posts from @GeorgeM777 and @JohnB5677 , IMHO, we are complicating this beyond recognition ( pardon, pardon ). You bought 12 shares of XYZ company and through a whole bunch spin-ffs/ bus etc. you ended up with 36 shares of ABC corp. In all this your basis did not change i.e. you have no more out of pocket since the initial purchase. You report that you sold 36 shares of ABC Corp with your original investment amount as the basis. Forms 8938 and Schedule-D only asks for total basis of the sold shares, the proceeds from the sale, when acquired and when disposed -- for acquisition date you have choice of using the original shares date or the updated & exchanged date which even is pertinent ( long-term vs short term ).
Does this make sense ?
