Can members of an esop company sell their stock to anyone else in the company?

The question is phrased oddly... If you mean can someone who is a participant in a stock purchase plan at their company sell the stock they purchase to someone else? Generally, all these plans are methods to buy the stock of the company at a slight discount, or theough a payroll plan, or such the stock itself, once purchased, has no special restrictions and can be sold to anyone else. However, there are some plans, especially in closely held or companies with a very controlled ownership of it's stock, that may have restrictions to whom - or more frequently - after how long of owning it, you may sell it. Ask the plan administrator is your stock has any restrictions on sale.