1099-B - sale proceedings after leaving US

Hi, I am a non US citizen who left US for good in Sep first week.  Since this is an intra company transfer, I got to keep my RSUs. On Sep 10 my RSUs vested and I sold it on Sep 14.  Tax on vested RSU is already withheld correctly by the company. This vested RSU will not be shown on my W2 as I was no more with the US employer on Sep 10. Since the vesting and subsequent sale happened after I left US but before I could change my brokerage to international account, the brokerage included this RSU sale on form 1099-B. I will be taking credit for the tax withheld at the time of vesting from my current country, so I do not plan to file dual status return. Also, I'll be showing the capital gain in the current location. 

 

 

Do I need to report this capital gain on US tax return just because my broker included it in 1099-B?  Or for that sake any stock sold after we leave US but is shown on 1099-B incur tax on capital gains in the US for non-US citizens? 

 

Thanks!