CALCBENCH
CALCBENCH is a database of financial data from 9,000+ publicly listed U.S. companies. While many of its features are only available to premium users, the free version allows users to see all of this data and download it in Excel. Once you create an account, a wealth of individual company information is available here: https://www.calcbench.com/detail/
YAHOO FINANCE
Yahoo Finance is a good source of downloadable historic pricing information.