Not sure I should even bother to answer to a guy like you but will try.
It is not commissions. It is mostly taxes. Think Yahoo, Yahoo holds big enough shares of Alibaba and in JV with SoftBank that combined value of those holdings exceed market capitalisation of Yahoo itself. At first it looks like market assigns Yahoo negative valuation. But the truth is that if Yahoo sell their holdings and get the cash, it will had to pay taxes.
Is Yahoo's Business Worth Less Than Nothing? - Bloomberg View
Same true for Daimler. It is ridiculous to think that Daimler sold TSLA shares for $165 as you are claiming. They sold it for close to market price that was close to $240 at that time. 4.3% stake in Tesla for $1.26 billion. But then they reported net "cash inflow" - actual cash that Daimler got on it bank account.