Stock trading is considered risky. Professional investors might not be happy with this, but will not be overly exposed and will readily invest again if they think they can make a profit.
Not in this case I presume, unless German investors are that daft. They crashed from an IPO price of almost 40 to a 50+ price, but are currently trading at 18. Not to mention, this action seems like a betrayal of trust to any investor. Investors usually don't understand business models but I'm assuming a significant number do understand how to read into profitability data.
Looks like it's 4.5% Samwer, 23.2% public, 27.2% institutions and 45.1% VC/PE, all of which is held by Global Founders Capital Management, which is the holding company for the Samwer clan.
Stock trading is considered risky. Professional investors might not be happy with this, but will not be overly exposed and will readily invest again if they think they can make a profit.