Do I need to file 3520 if I own a bank account and a stock account in a foreign country where the distributions from my stock is deposited into a foreign bank account?
In your case, you do not have to file form 3520.
You may have to file form 8938 and a FBAR.
https://www.irs.gov/businesses/corporations/do-i-need-to-file-form-8938-statement-of-specified-foreign-financial-assets
https://www.irs.gov/businesses/small-businesses-self-employed/report-of-foreign-bank-and-financial-accounts-fbar