If you're a Canadian resident, you will report the 1042-S as foreign income, using the Foreign slip.

Non-residents of Canada are taxed on Canadian-sourced income only. Taxes on your income have likely been withheld at the source, so you do not need to report a 1042-S on a Canadian tax return as a non-resident.

Hi, thanks so much! I wanted to also ask am i supposed to input information for Capital gains and capital gains deduction? I’m unsure where i would find the information for those boxes, as I sold grant stocks and I’ve never purchased any stocks. 

@TurboTax_Susan Hi, thanks so much! I wanted to also ask am i supposed to input information for Capital gains and capital gains deduction? I’m unsure where i would find the information for those boxes, as I sold grant stocks and I’ve never purchased any stocks. 

You can find your eligible taxable capital gains as reported on Form T657 from your combined previous years' tax returns. The Capital Gain Deduction page shows which forms/lines to look at, if that if relevant to your situation.