These days, most employees getting nothing out of the deal is par for the course for acquisitions, unfortunately. The acquisition price is almost never exchanged directly for shares in the company as implied, often a chunk of it is kept for key personnel retention, etc. Typically just enough goes towards the share purchase to make investors happy, and the rest is structured as incentives for founders and key execs with milestone payouts. That‘s the set of people with leverage towards making the acquisition happen, so that‘s who gets paid.

If you‘re just a regular employee with some options, and the acquirer doesn‘t want to keep you on, you should expect nothing.