I sold all of my restricted stock awards after I retired in 2016. One transaction included multiple lots. Since my 1099-B doesn't include the shares that I sold to cover taxes when vested, the gains are incorrect because the system is using the FIFO method to calculate gains from stock sales from each lot. How do I identify how many shares of stock I sold from each lot in a single transaction? I saw a form somewhere that allowed me to change the method from FIFO but now I don't see it.
