You will have to determine the unknown date acquired and unknown cost basis for the investment.
You may have to review your personal records or trade tickets to determine the unknown amounts.
If the investment was acquired over a period of time, you may be able to report an acquisition date of 'Various'. In this case, then you would have to determine whether the Sales section was long-term or short-term.
- Short-term gains or losses come from the sale of investments owned one year or less.
- Long-term gains or losses come from the sale of investments held more than one year.
You may discover that the one investment must be reported as both a long-term investment and short-term investment.
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