I purchased stock through ESOP between 1982 and 1989, when I resigned from the company. I held the stock for 30 years, during which there was one split and all dividends were reinvested to purchase additional shares. I sold some shares in 2022, and the 1099-B indicated the acquisition date of the various share portions, though there were no entries in "Cost or Other Basis" and "Type of Gain/Loss" is Noncovered. How do I determine my tax liability based on this sale? Are the dividend reinvestments still considered as stock purchases from the ESOP?
