Key events for stocks and how to keep track of them while having a regular job?

Hey folks,

We all know that the next earnings reporting season starts soon (or started already) and that earnings announcement tends (not always though) to significantly affect the stock price.

Apart from earnings calls, another important event is an ex-div date when the stock price goes down roughly by the amount of the dividend (again, not always but in most cases)

For niche sectors like pharmaceuticals the important dates are FDA announcements about approval/rejection of a particular drug or therapy.

So I would really appreciate if you could share:

1. What other KEY EVENTS do you track for your stock portfolio
2. What source (ideally mobile app since I cannot check desktop often due to my job) you use to track those events.

Thanks!!