Astrotech Corp Files Prospectus Supplement for $50M ATM Offering

What Happened

• Astrotech Corporation announced an update to its at-the-market offering program with H.C. Wainwright & Co., LLC. The company originally entered the ATM agreement on June 2, 2026 and used a prior prospectus supplement dated June 3, 2026 that allowed for up to approximately $24.5 million of shares.
• As of August 19, 2026, Astrotech had sold 258,856 shares under that prior supplement for gross proceeds of about $7.9 million (before commissions and expenses). On June 30, 2026 the company filed a new shelf registration (Form S-3, File No. 333-297144) that became effective July 7, 2026, and on August 19, 2026 it filed a prospectus supplement to that registration permitting sales of up to $50 million of common stock, which replaces and supersedes the prior prospectus supplement. The company disclosed a legal opinion from Haynes and Boone, LLP related to the offering.

Key Details

• Agent: H.C. Wainwright & Co., LLC acting as sales agent for the ATM program.
• Prior ATM cap: ~ $24.5 million (Prior Prospectus Supplement).
• Sales to date (under prior supplement): 258,856 shares for ~ $7.9 million gross proceeds (as of Aug 19, 2026).
• New prospectus supplement (filed Aug 19, 2026) authorizes up to $50 million of common stock and supersedes the prior supplement.

Why It Matters

• The updated prospectus supplement expands Astrotech’s capacity to raise capital through its ATM program (now up to $50M). That gives the company a flexible way to obtain funding as needed.
• For investors, additional ATM sales can dilute existing shareholders if and when shares are issued and sold; to date the company has already raised roughly $7.9M under the prior supplement.
• Monitor future 8-Ks and SEC filings for actual share issuances, pricing, and use of proceeds to assess timing and magnitude of any dilution and how the company is deploying the raised capital.