There has been talk of such a meeting for quite a while and I think the founders realize the need for this. However, like most things at this company, its actual realization is long in the indefinite future.
Equity is something you want, and the founders aren't going to give it to you unless you make it clear that this is important.
I don't know what your relationship is with the founders, so your lack of equity could be simply due to inexperience at the time you were hired. That's not to say you aren't being taken advantage of, but it's easier to negotiate if you don't start from an adversarial position.
