When I trade it I’ll just own a little bit of the company and I wouldn’t be giving Disney my money directly. Would it be permissible here? So it’s not supporting the company as much as I’m buying a little part if ownership in them

If buying ownership in a company helps them directly support LGBT, it would not be permissible. If your assessment is that you are not empowering them in any way to support LGBT, then it’s permissible.