I have a similar situation as I sold stock from my company 2 years after retiring from my employer. However, the shares I sold were granted to me as an incentive payment for performance. I do not know what year I received these shares. My employer moved the accounting to different brokers and I have no audit trail. I received a 1099-B for the sale, listed as a NONRECOVERED security. How do I report the cost basis for this stock sale? I paid income tax when the stock incentive was granted.
