I do not believe the above answer is correct. I am in the similar situation from the shares that I bought of a oh well in the late nineties. The cost basis for your shares are more than just on the Charter Communication side. Back I believe in 2009 we also received shares of Time Warner twx and time Inc. Some of the cost basis has to go to those shares. Also in 2015 the remnants of AOL which you had received some stock of was sold to Verizon for cash you would had to have declared some of that in 2015. I paid over $14,000 for my AOL shares back in the nineties and my cost basis for my 7 shares of charter is only a little over $3,200. It is not 14,000. You would be in the same situation. It was very confusing for me and took me a number of hours to figure this out.
