ClearSign Technologies announces 1-for-10 reverse stock split effective March 16, 2026

ClearSign Technologies Corp

Reverse stock split ratio 1-for-10, effective 12:01 a.m. ET on March 16, 2026.
Pre-split shares ~54.1M; post-split ~5.41M; authorized shares and par value unchanged.
Split intended to regain compliance with Nasdaq $1.00 minimum bid price requirement.
Fractional shares rounded up; proportionate adjustments to warrants and equity awards.
CUSIP changes to 185064201; trading symbol remains CLIR.

item 3.03 item 5.03 item 7.01 item 9.01

Key facts

Extracted from this filing and checked against the source text.

Governance Changes SEC 8-K Item 5.03/5.05/5.06 confidence 0.9

ClearSign Technologies Corp: Filed a charter amendment to effect a 1-for-10 reverse stock split (effective 2026-03-16).

Change: charter amendment
Effective: 2026-03-16

Exact text from the filing

On March 6, 2026, ClearSign Technologies Corporation (the “Company”) filed an amendment (the “Charter Amendment”) to its certificate of incorporation, as amended, with the Secretary of State of Delaware to implement a 1-for-10 reverse stock split, such that every ten (10) shares of the Company’s common stock, par value $0.0001 per share (the “common stock”), will be combined into one (1) issued and outstanding share of common stock, with no change in the $0.0001 par value per share (the “Reverse Stock Split”).

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Governance Changes SEC 8-K Item 5.03/5.05/5.06 confidence 0.4

ClearSign Technologies Corp reported a fiscal year change.

Change: fiscal year change

Exact text from the filing

the information regarding the Reverse Stock Split (as defined below) set forth below in Item 5.03 of this Current Report on Form 8-K is incorporated by reference herein in its entirety.

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ClearSign Technologies Corp filing history →

Source: SEC EDGAR

accession 0001104659-26-025867

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