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Filing taxes on stocks
Generally stock trades will require an additional Capital Gains and Losses form included with a 1040, known as Schedule D (summary) and Schedule D-1 (itemized).  That year I believe the maximum declarable Capital loss was $3000--the rest could carry over to future years. The purchase date/year only matters insofar as to rank the lot as short term or long term(a position held 365 days or longer), short term typically but depends on actual asset taxed then at 25%, long term 15%.  The year a position was closed(eg. sold) tells you which year's filing it belongs in. The tiny $16.08 interest earned probably goes into Schedule B, typically a short form. The IRS actually has a hotline 800-829-1040 (Individuals)  for quick questions such as advising which previous-year filing forms they'd expect from you.  Be sure to explain the custodial situation and that it all recently came to your awareness etc. Disclaimer: I am no specialist. You'd need to verify everything I wrote; it was just from personal experience with the IRS and taxes.