Comment by throwawaydbb

Since this year the employees are vesting RSUs (not options, and also no expiry date) quorterly now, they sell a portion of them (automatically) and pay taxes to the government at each vesting event, as the expiry date no longer exists. For liquidity there are tenders where employees sell their stock privately, so the employees no longer need IPO to cash out.

Just to clarify - for many years employees were getting the RSUs not options, just with the expiratation date attached - which is gone since this year.