There are two main risks to be aware of when investing in private businesses such as Milbotix.
The value of your shares depends on how successful the business is and as such they can go up and they can go down. If the businesses fails, you risk losing all of your investment.
Until the anticipated trade sale or initial public offering (IPO) it can be difficult to value and sell your shares. During this period you may not be able to sell your shares even if the business is successful and has increased in value.