Some pension funds, like one of the largest (https://en.wikipedia.org/wiki/Government_Pension_Fund_of_Norway https://en.wikipedia.org/wiki/Government_Pension_Fu

Some pension funds, like one of the largest (https://en.wikipedia.org/wiki/Government_Pension_Fund_of_Norway https://en.wikipedia.org/wiki/Government_Pension_Fund_of_Nor...) with over US$1 trillion in assets, you can offered indeed to put some pressure on the companies you invested in. When they can divest ~$700M from British American Tobacco all at once, it can be a serious leverage.