Certain Common Stock of Astrotech Corporation are subject to a Lock-Up Agreement Ending on 12-JUL-2021. These Common Stock will be under lockup for 91 days starting from 12-APR-2021 to 12-JUL-2021.

Details:
The officers and directors have agreed to not sell any shares of our common stock or any securities convertible into or exercisable or exchangeable into share of common stock, subject to certain exceptions, for a period of 90 days after the date of closing of the offering pursuant to this prospectus supplement unless we or our officers and directors obtain prior written consent of the underwriter.