ClearSign Technologies Corporation Common Stock (DE)

Day range

$2.20 – $2.39

Open

$2.35

Prev close

$2.31

Volume

14.8K

Market cap

$15.73M

Shares out

6.81M

P/E

—

P/S

2.88

P/B

1.60

P/FCF

—

ROE

-53.3%

ROA

-43.0%

Debt/Equity

0.00

Div yield

0.00%

As of Oct 23, 2026

• Investor presentationSep 14, 2026

  On September 14, 2026, ClearSign Technologies Corporation (the "Company") posted an investor presentation on its website intended for use in upcoming meetings and conferences with investors, analysts and other interested parties.

• Executive compensation changeAug 11, 2026

  Pursuant to the Offer Letter and in accordance with the Company's non-executive director compensation policy (the "Director Compensation Policy"), Mr. Saddler will receive (i) cash compensation of $60,000 annually, payable in quarterly installments in arrears on the last day of the fiscal quarter in which the service occurred...and (ii) non-statutory stock option grants with an aggregate fair market value of $40,000 annually, issued in quarterly installments in arrears on the last day of each fiscal quarter in which the service occurred.

• Private placementJul 23, 2026

  On July 21, 2026, the Company entered into a Stock Purchase Agreement with the Investor, an existing stockholder of the Company that holds more than 5% of the issued and outstanding shares of the Company's common stock, pursuant to which the Company sold and the Investor purchased 500,000 shares of Common Stock at a price per share of $3.54, for aggregate gross proceeds of $1,770,000. The Shares were issued pursuant to an exemption from registration provided by Section 4(a)(2) and/or Rule 506 of Regulation D.

• Public offeringJul 6, 2026

  On July 6, 2026, ClearSign Technologies Corporation (the "Company") filed a prospectus supplement (the "Prospectus Supplement") to recommence its "at the market" offering, as defined in Rule 415 under the Securities Act of 1933, as amended, under which the Company may offer and sell up to $6,875,000 in shares (the "Placement Shares") of the Company's common stock, par value $0.0001 per share, pursuant to that certain At The Market Offering Agreement between the Company and H.C. Wainwright & Co., LLC, dated July 17, 2025 (the "Sales Agreement").

• Public offeringJun 18, 2026

  ClearSign Technologies Corporation (the "Company") entered into an underwriting agreement, dated May 28, 2026 (the "Underwriting Agreement"), with Newbridge Securities Corporation (the "Underwriter"), relating to the Company's firm-commitment underwritten public offering (the "Offering") for the issuance and sale of 777,780 shares (the "Firm Shares") of the Company's common stock, par value $0.0001 per share (the "Common Stock"), primarily to existing stockholders of the Company, at a public offering price of $4.33 per Firm Share.

Days to cover

1.0

Short interest

13.27K

Avg volume

20.62K

As of Sep 30, 2026 · reported to FINRA twice monthly.

• Fastenal (FAST) Beats Q3 Earnings Estimates
  neutralZacks Investment Research· Oct 14, 2026
• Why ClearSign Technologies (CLIR) Stock Fell 20% After Hours Today
  negativeBenzinga· May 29, 2026
• ClearSign Technologies Corporation Provides First Quarter 2025 Update
  positiveBenzinga· May 21, 2025
• ClearSign Technologies Corporation Debuts New ClearSign Core™ M Series Process Burner Technology at Global Chemical Company in Texas
  positiveBenzinga· Mar 5, 2025
• ClearSign Technologies Corporation Awarded Federal Grant to Advance Hydrogen Burner Solutions for Industrial Decarbonization
  positiveBenzinga· Jan 30, 2025