You can set a price alert on the stock that you are following. This means that you will be notified when that particular stock reaches a certain price. The set alert feature can be accessed by clicking on the bell icon (Alerts) at the bottom of the stock overview screen.

Once you click on the Bell icon, you can set the 'Price Above' and 'Price Below' by enabling the toggle button and clicking on 'Save Changes' to set a price alert.