@DaveF1006Please pay attention to my previous question 'file 1065' (not filing foreigner's 1040NR, which does require ITIN).
Filing 1065 for income from Marketable Securities does NOT require foreigners to apply ITIN. That is specifically mentioned in that IRS link I provided, please read carefully. It says:
Exceptions to TIN requirement
A foreign person does not have to provide a U.S. TIN to claim a reduced rate of withholding under a tax treaty if the requirements for the following exceptions are met.
- Income from marketable securities (see below).
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