I’m in my company’s 401(k) plan. Do the investments I choose have anything to do with the time I’ve been with the company?

Whether an employee is eligible to participate in a company’s 401(k) plan may depend on satisfying a period of service there. But once in the plan, an employee can make investments from the menu of options offered. Check with the plan administrator about how often you can change investments; you may be limited to doing this once a year or at some other interval.