CLIR ClearSign Technologies Corp

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Executive Summary

ClearSign Technologies suspended and terminated its at-the-market (ATM) equity offering program with H.C. Wainwright, which had $10.39 million in capacity remaining but had never been drawn upon. The ATM agreement itself remains in effect, but no shares can be sold under it until a new prospectus supplement is filed.

Actionable Insight

Key Facts

• ClearSign terminated the prospectus supplement for its $10.39 million ATM equity facility with H.C. Wainwright on May 26, 2026.
• No shares had ever been sold under the ATM program; the full $10.39 million capacity was unused.
• The underlying ATM agreement remains in force, but sales cannot resume until a new prospectus supplement is filed.
• The company has a $24 million market cap, making the undrawn $10.39 million facility equivalent to ~43% of its market cap.

Financial Impact

Removal of a $10.39 million overhang (43% of $24M market cap) that had never been used. No actual dilution occurred.

Risk Factors

• The ATM agreement is still in effect; a new prospectus supplement could be filed at any time, reintroducing the same overhang.
• The company may need to raise capital through other means if it requires funding, potentially at worse terms.
• Historical performance on CLIR reports shows poor T+20 outcomes, suggesting limited follow-through on positive news.

Market Snapshot

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

US Market Status