kingsway

I think some banks (HSBC for example) issue T5008 for their customers who trade stocks, but I am not sure if every bank does the same.

And I think that it's no different for you to input your txn in Sch 3 or T5008 form, coz the data in t5008 will be shown on Sch3.  The most important thing is that CRA knows how to reach you if it needs more details.