Are you looking for press release, upcoming events, Announcements significant companies such as Microsoft, AMD, Micron, etc.
Below are hyperlinks, where you can find these information.
Microsoft https://www.microsoft.com/en-us/investor
Taiwan Semiconductor https://www.taiwansemi.com/en/news/company-news
ATT https://investors.att.com/news-and-events/events-and-presentations
GOPRO https://investor.gopro.com/overview/default.aspx
Micron http://investors.micron.com/events-and-presentations
Shell https://www.shell.com/investors.html