It might be worth it to find the costs of those stocks. You could have a capital loss which would help reduce your taxable income and generate more refunds.
Here are some suggestions:
Ask your broker for some help. Brokers must keep records for six years, and some go back further (although you may have to pay a small fee to receive a duplicate statement).
If your broker doesn't keep records that far back, try to remember when you bought the shares and see what they were selling for then. A stock certificate might be dated or old tax returns might show when you began reporting dividend income. Then look up historical price quotes. If you can narrow down the purchase period to a few months, use the average price during that time as your basis and keep records of your methodology.
BigCharts is a great source for historical price information, but their records only go back to January 1985.
