Missing data on a 1099-B transaction. Qty sold, date acquired, date sold & proceeds show data. Cost basis & gains/loss data show N/A. How do I show a gain or loss?

[PattiF]

You will need to look at your records or monthly statements to find out what the cost basis was for the transaction. How much was paid for what was sold? Use the date acquired to look for the cost basis. If this was transferred from another account to you present account, you will have to research the cost basis in an earlier account.