 AUSTIN, Texas--BUSINESS WIRE--Astrotech Corporation NASDAQ: ASTC, announced today the closing of its previously announced underwritten public offering of 24,885,828 shares of its common stock, which included 3,245,977 shares sold pursuant to the full exercise of the underwriters option to purchase additional shares, at a price to the public of 1.50 per share, less underwriting discounts and commissions. The gross proceeds to the Company from the offering were approximately 37.3 million, 