How do I enter sale of Publix Stock which was split and added to account? Ex employee.

You enter that as an investment sale in TurboTax. You enter investment sales in the Wages and Income section of TurboTax, then Investments Sales, then Stocks, cryptocurrency, Mutual Funds, Bonds, etc... 

You should have a Form 1099-B reporting the sale which will list the sale proceeds and cost basis. If the cost basis is not listed or is not correct, you will have to contact Publix and ask them for a transcript of your purchases so you can determine what you paid for the stock. When you enter the Form 1099-B in TurboTax you will see an option to adjust the cost basis if necessary. You may need Form 3922 that you should receive from Publix when requested in TurboTax to determine the correct cost basis to report.