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BCS

Current Report · Items 2.02, 7.01, 9.01 · 8-K

ClearSign Technologies Corporation

CLIRNASDAQEQUITYCurrent

Results of Operations and Financial Condition · Regulation FD Disclosure

Item 2.02 Results of Operations and Financial Condition. To the extent required, the information set forth below in Item 7.01 of this Current Report on Form 8-K is incorporated herein by reference in its entirety.

Filed Aug 20, 2026Accepted Aug 20, 2026, 4:15 PM EDTCIK 1434524Accession 0001104659-26-099235
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Company context

ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems, including operational performance, energy efficiency, emission reduction, safety, the use of hydrogen as a fuel and overall cost-effectiveness. Our patented technologies, embedded in established OEM products as ClearSign Core ™ and ClearSign Eye ™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries. For more information, please visit www.clearsign.com.

Current securities

Recent company filings

  1. 4 filingOct 2, 2026
  2. Regulation FD DisclosureSep 14, 2026
  3. 10-Q filingAug 14, 2026
  4. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · Regulation FD DisclosureAug 11, 2026
  5. D filingJul 31, 2026

Registered securities in this filing

CLEARSIGN TECHNOLOGIES CORPORATION · 8-K · Filed 2026-08-20

As filed in this accession. Current/historical status below comes from the governed listing record; the cover itself remains exact to this filing.

Common Stock

Symbol
CLIR
Exchange
NASDAQ
Classification
COMMON
Status
Current
Filing context

Context: AsOf2026-08-19

Dimensions: Not supplied

Accession 000110465926099235 · 1 registered-security cover member

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Disclosure sections

Items 2.02, 7.01, 9.01

Select an item to read the extracted section. The as-filed document remains the primary evidence.

Item 2.02Item 2.02 - Results of Operations
Item 2.02 Results of Operations and Financial Condition. To the extent required, the information set forth below in Item 7.01 of this Current Report on Form 8-K is incorporated herein by reference in its entirety.
Item 7.01Item 7.01 - Regulation FD Disclosure
Item 7.01 Regulation FD Disclosure. On August 19, 2026, ClearSign Technologies Corporation (the “Company”) issued a press release announcing the results of operations for the quarter ended June 30, 2026 (the “Financial Results”). The press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference in its entirety into this Item 7.01. Also on August 19, 2026, the Company held a conference call discussing the Financial Results and other business related information. A transcript of this conference call is furnished as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated by reference in its entirety into this Item 7.01. The information furnished with this Item 7.01, including Exhibits 99.1 and 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.
Filed exhibits (2)
EX-99.1 (by filename) tm2623643d1_ex99-1.htm

EX-99.1 2 tm2623643d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2026 Update TULSA, Okla., August 19, 2026 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today provides an update on operations for the second quarter ended June 30, 2026. “We made notable progress across multiple product lines,” said Jim Deller, Ph. D., Chief Executive Officer of ClearSign. “The M Series midstream burners appear to be gaining market traction, with six burners sold to two major operators in West Texas. We believe these sales demonstrate both a significant market need and growing demand for this product line. In addition, we are seeing several larger opportunities across both our process burner and flare product lines, with increasing customer interest and a growing pipeline of proposals. We believe this momentum and upcoming installations will position us well for continued growth across our product portfolio.” S…

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EX-99.2 (by filename) tm2623643d1_ex99-2.htm

EX-99.2 3 tm2623643d1_ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 Transcript of ClearSign Technologies Corporation 2Q 2026 Earnings Conference Call August 19, 2026 Participants Matthew Selinger - Investor Relations, Firm IR Group Jim Deller - Chief Executive Officer, ClearSign Technologies Corporation Brent Hinds - Chief Financial Officer, ClearSign Technologies Corporation Analysts Sameer Joshi - H.C. Wainwright & Co. Peter Gastreich - Water Tower Research Presentation Operator Greetings. Welcome to the ClearSign Technologies 2Q 2026 Earnings Conference Call. At this time, all participants are in a listen-only mode. A question-and-answer session will follow the formal presentation. [Operator Instructions] Please note this conference is being recorded. I will now turn the conference over to your host, Matthew Selinger, Investor Relations. You may begin. Matthew Selinger - Investor Relations, Firm IR Group Good afternoon, and thank you, operator. Welcome everyone to ClearSign Technologies Corporation’s second quarter 2026 corporate update call. During this conference call, the company will make forward-looking statements. Any statement that is not a statement of histor…

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