a shareholder owns part of the company, they will have right to vote in the annual shareholder meeting. as employee, you may have to go to the payroll part, which i am not familiar with, coz' i just started as well, didn't hire anybody yet.
regarding total assets, depends what you want to do with it. you could free loan your money to the company, then take them back when your company makes money. so it's really your own choice to put more money in or not, depends on what you do.