If this happens (and it's really cliffing, meaning 85% or more of a vesting period, not half-way) -- and assuming your options or stock would have significant v

If this happens (and it's really cliffing, meaning 85% or more of a vesting period, not half-way) -- and assuming your options or stock would have significant value -- hire a compensation lawyer. You might get something; without a lawyer on your side you will get zip for sure.