Get your taxes done using TurboTax

@nexchap Thank you! Did you mean that I just group the transactions as 1 line item in 1099-B reporting? or still report multiple transactions (as reported in 1099-B from Fidelity, and spread the calculated "Capital Gain" among them?

BTW, I am trying to summarize my understanding of reading this thread especially your methods, and visually capture how the numbers flow into various forms, and eventually to 1040 (help me to do "Trust & Check"). I drew a picture as attached. Pls let me know if you spot mistakes/misunderstandings.