How can you find out when you purchased stock and its value at the time of purchase?

To find out when you purchased stock and its value at the time of purchase, you can check your brokerage account statements or transaction history, which typically provide details on each trade, including the purchase date and price. Additionally, you can look for confirmation emails or documents sent by your brokerage at the time of the transaction. If you use a financial tracking app or software, it may also store this information. Lastly, if needed, you can contact your brokerage's customer service for assistance.