You don't mention which version of Quicken you are using, but in all versions, you can enter stock prices manually.In QMac 2015-2018, open the Securities window (menu Window > Securities). Click on a stock, then click the pencil icon at the bottom (or just double click the stock). Then click on Price History at the top. Fill in the fields (High, Low and Volume are optional). Then click Add. Lather, rinse and repeat.If you click the Options button at the bottom, then Import History from CSV File, it will allow you to import any number of price points all at once from a Comma Separated Value file (essentially an Excel file). When you choose that option, a popup will provide instructions.