الإحصائيات الأساسية
| LEI | 529900KAAUSQWCW66J95 |
| CIK | 1434524 |
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis.
These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to ClearSign Technologies Corporation
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
| August 29, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 26, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 22, 2025 |
PROSPECTUS 5,267,222 Shares of Common Stock Underlying the Warrants Filed Pursuant to Rule 424(b)(4) Registration No. 333-289549 PROSPECTUS 5,267,222 Shares of Common Stock Underlying the Warrants This prospectus relates to the issuance of up to 5,267,222 shares of our common stock, par value $0.0001 per share, or the common stock, available for issuance upon the exercise of 5,267,222 redeemable warrants, or the Warrants, previously issued as part of our public of |
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| August 20, 2025 |
As filed with the Securities and Exchange Commission on August 20, 2025 As filed with the Securities and Exchange Commission on August 20, 2025 Registration No. |
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| August 15, 2025 |
ClearSign Technologies Corporation Provides Second Quarter 2025 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2025 Update TULSA, Okla., August 14, 2025 – 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 safety, and support the use of cleaner fuels including hydr |
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| August 15, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 15, 2025 |
Transcript of ClearSign Technologies Corporation 2Q 2025 Earnings Conference Call August 14, 2025 Exhibit 99.2 Transcript of ClearSign Technologies Corporation 2Q 2025 Earnings Conference Call August 14, 2025 Participants Matthew Selinger - Investor Relations, Firm IR Group Brent Hinds - Chief Financial Officer, ClearSign Technologies Corporation Jim Deller - Chief Executive Officer, ClearSign Technologies Corporation Analysts Presentation Operator Welcome to the ClearSign Technologies 2Q 2025 |
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| August 14, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 00 |
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| August 12, 2025 |
Calculation of Filing Fee Tables S-1 ClearSign Technologies Corp Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common stock, $0. |
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| August 12, 2025 |
As filed with the Securities and Exchange Commission on August 12, 2025 As filed with the Securities and Exchange Commission on August 12, 2025 Registration No. |
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| August 8, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| August 8, 2025 |
Exhibit 99.1 ClearSign Technologies Corporation Announces Realignment of Board of Directors to Support Next Phase of Growth TULSA, Okla., August 8, 2025 - 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 safety, and support |
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| July 28, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| July 24, 2025 |
July 24, 2025 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 RE: ClearSign Technologies Corporation Registration Statement on Form S-3 Filed July 17, 2025 File No. 333-288736 Acceleration Request Requested Date: Monday, July 28, 2025 Requested Time: 4:30 p.m. Eastern Time Ladies and Gentlemen: In accordance with Rule 461 |
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| July 18, 2025 |
Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 12, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| July 17, 2025 |
As filed with the Securities and Exchange Commission on July 17, 2025 As filed with the Securities and Exchange Commission on July 17, 2025 Registration No. |
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| July 17, 2025 |
Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Table 1-Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (2) Proposed Maximum Aggregate Offering Price (3) Fee Rate Amount of Registration Fee Fees to Be Paid Equity Common Stock, par value $0. |
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| July 17, 2025 |
Exhibit 1.2 AT THE MARKET OFFERING AGREEMENT July 17, 2025 H.C. Wainwright & Co., LLC 430 Park Avenue New York, New York 10022 Ladies and Gentlemen: ClearSign Technologies Corporation, a corporation organized under the laws of Delaware (the “Company”), confirms its agreement (this “Agreement”) with H.C. Wainwright & Co., LLC (the “Manager”) as follows: 1. Definitions. The t |
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| July 17, 2025 |
Form of Indenture for Debt Securities. Exhibit 4.1 CLEARSIGN TECHNOLOGIES CORPORATION Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of , 20 Debt Securities Table Of Contents Page article 1 DEFINITIONS 1 Section 1.01 Definitions of Terms 1 article 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES 5 Section 2.01 Designation and Terms of Securities 5 Section 2.02 Form of Securities and Trustee’s Certificat |
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| July 11, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 27, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| July 11, 2025 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| June 13, 2025 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| June 13, 2025 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ◻ Definitive Proxy Statement ⌧ Definitive Additional Materials ◻ Soliciting Material Pursuant to §240. |
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| May 29, 2025 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| May 28, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-3 |
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| May 27, 2025 |
Louis J. Basenese’s Offer Letter, effective as of May 22, 2025. Exhibit 10.3 May 20, 2025 Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear Louis J. Basenese: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a member of our Board, including service as a member of the Board’s Human Capital and Compensation |
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| May 27, 2025 |
ClearSign Technologies Corporation Announces Changes to Board of Directors Exhibit 99.1 ClearSign Technologies Corporation Announces Changes to Board of Directors TULSA, Okla., May 27, 2025 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety whi |
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| May 27, 2025 |
Exhibit 10.2 COOPERATION AGREEMENT This Cooperation Agreement (this “Agreement”), effective as of May 22, 2025 (the “Effective Date”), is entered into by and between ClearSign Technologies Corporation, a Delaware corporation (“ClearSign”), and Anthony DiGiandomenico (collectively with his Affiliates and Associates, the “Investor Parties,” and each, an “Investor Party”). ClearSign and the Investor |
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| May 27, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 22, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commis |
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| May 27, 2025 |
Exhibit 10.1 COOPERATION AGREEMENT This Cooperation Agreement (this “Agreement”), effective as of May 22, 2025 (the “Effective Date”), is entered into by and between ClearSign Technologies Corporation, a Delaware corporation (“ClearSign”), and Richard D. Clarkson (collectively with his Affiliates and Associates, the “Investor Parties,” and each, an “Investor Party”). ClearSign and the Investor Par |
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| May 27, 2025 |
Anthony DiGiandomenico’s Offer Letter, effective as of May 22, 2025. Exhibit 10.4 May 20, 2025 Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear Anthony DiGiandomenico: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a member of our Board, subject to (i) the approval by the Board of the resolutions authorizin |
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| May 23, 2025 |
ClearSign Technologies Corporation Provides First Quarter 2025 Update Exhibit 99.1 ClearSign Technologies Corporation Provides First Quarter 2025 Update TULSA, Okla., May 21, 2025 – ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dr |
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| May 23, 2025 |
Exhibit 99.2 ClearSign Technologies Corporation First Quarter 2025 Conference Call Event Date/Time: May 21, 2025 — 5:00 p.m. E.T. Length: 66 minutes "While Cision has used commercially reasonable efforts to produce this transcript, it does not represent or warrant that this transcript is error-free. Cision will not be responsible for any direct, indirect, incidental, special, consequential, loss o |
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| May 23, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 21, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commis |
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| May 15, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00 |
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| April 4, 2025 |
Exhibit 99.2 ClearSign Technologies Corporation Fourth Quarter and Full Year 2024 Conference Call Event Date/Time: April 2, 2025 — 5:00 p.m. E.T. Length: 51 minutes “While Cision has used commercially reasonable efforts to produce this transcript, it does not represent or warrant that this transcript is error-free. Cision will not be responsible for any direct, indirect, incidental, special, conse |
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| April 4, 2025 |
Exhibit 99.1 ClearSign Technologies Corporation Provides Full Year 2024 Update Company Achieves Record Annual Revenue of $3.6 Million TULSA, Okla., April 2, 2025 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the u |
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| April 4, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 1, 2025 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| March 31, 2025 |
Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0. |
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| March 31, 2025 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-355 |
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| March 31, 2025 |
filed with the SEC on March 31, 2025 DESCRIPTION OF SECURITIES General The following summary of certain material terms of the securities of ClearSign Technologies Corporation (the “Company,” “we,” “us” or “our”) is not intended to be a complete summary of the rights and preferences of such securities. |
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| March 31, 2025 |
As filed with the U.S. Securities and Exchange Commission on March 31, 2025 As filed with the U.S. Securities and Exchange Commission on March 31, 2025 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ClearSign Technologies Corporation (Exact name of Registrant as specified in its charter) Delaware 26-2056298 (State or other jurisdiction of incorporation or organi |
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| March 31, 2025 |
Exhibit 19 Statement of ClearSign Technologies Corporation Policy on Insider Trading and Compliance It is the policy of ClearSign Technologies Corporation (the “Company”) to comply fully, and to assist its directors, officers and other employees in complying fully, with all federal and state securities laws applicable to transactions in the Company’s securities or securities of its affiliates. |
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| December 9, 2024 |
ClearSign Technologies Corporation Regains Compliance with Nasdaq’s Minimum Bid Price Requirement Exhibit 99.1 ClearSign Technologies Corporation Regains Compliance with Nasdaq’s Minimum Bid Price Requirement TULSA, Oklahoma, December 9, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as |
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| December 9, 2024 |
Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 6, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Co |
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| November 21, 2024 |
Exhibit 99.1 ClearSign Technologies Corporation Provides Third Quarter 2024 Update Company Achieves Record Quarterly Revenue of $1.85MM TULSA, Okla., November 20, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable |
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| November 21, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 20, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (C |
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| November 21, 2024 |
[CLIR] ClearSign Technologies Q3 2024 Earnings Conference Call November 20, 2024, 5:00 PM ET. Exhibit 99.2 [CLIR] ClearSign Technologies Q3 2024 Earnings Conference Call November 20, 2024, 5:00 PM ET. Officers and Speakers Matthew Selinger, Firm IR Group Brent Hinds, Chief Financial Officer Jim Deller, Chief Executive Officer Presentation Operator: Good afternoon, and welcome to the ClearSign Technologies Third Quarter 2024 Conference Call. (Operator Instructions). After today's presentati |
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| November 14, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe |
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| November 7, 2024 |
Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 2) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission |
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| October 30, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 30, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Co |
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| October 1, 2024 |
Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 1, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 23, 2024 |
Event Name: ClearSign Technologies Second Quarter 2024 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies Second Quarter 2024 Conference Call Event Date: Wednesday, August 21, 2024, 5:00 p.m. Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; Chief Financial Officer Jim Deller; Chief Executive Officer Analysts Amit Dayal; H.C. Wainwright Presentation Operator: Good afternoon, and welcome to the ClearSign Technologies Second Q |
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| August 23, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 21, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 23, 2024 |
Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 24, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of i |
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| August 23, 2024 |
ClearSign Technologies Corporation Provides Second Quarter 2024 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2024 Update TULSA, Okla., August 21, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations |
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| August 14, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001 |
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| August 6, 2024 |
Exhibit 10.1 July 19, 2024 Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear Mr. G. Todd Silva: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a non-independent member of our Board and as the director nominated by clirSPV in accordance with |
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| August 6, 2024 |
ClearSign Technologies Appoints G. Todd Silva to Board of Directors Exhibit 99.1 ClearSign Technologies Appoints G. Todd Silva to Board of Directors TULSA, Okla., August 6, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, announces that G. Todd Silva has been appoi |
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| August 6, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| July 15, 2024 |
Filed pursuant to Rule 424(b)(4) Registration No. 333-279550 PROSPECTUS 5,599,763 Shares of Common Stock 4,498,642 Shares of Common Stock Issuable Upon Exercise of Pre-Funded Warrants 15,147,606 Shares of Common Stock Issuable Upon Exercise of Private Warrants 15,147,606 Private Warrants This prospectus relates to the resale, from time to time, by the selling stockholders identified in this prospe |
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| July 10, 2024 |
July 10, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 RE: ClearSign Technologies Corporation Registration Statement on Form S-1, as amended Filed July 3, 2024 File No. 333-279550 Acceleration Request Requested Date: Friday, July 12, 2024 Requested Time: 4:30 p.m. Eastern Time Ladies and Gentlemen: In accordance wit |
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| July 3, 2024 |
Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(4) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(5) Fees to be Paid Equity Common stock, par value $0. |
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| July 3, 2024 |
As filed with the Securities and Exchange Commission on July 3, 2024 As filed with the Securities and Exchange Commission on July 3, 2024 Registration No. |
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| June 28, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 24, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of i |
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| June 26, 2024 |
Securities Purchase Agreement, dated June 24, 2024, Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of June 24, 2024, between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and clirSPV LLC (“Purchaser”). WHEREAS, in connection with a private placement of Common Stock (as defined below) pursuant to the clirSPV SPA (as defined below), the Company granted Purchas |
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| June 26, 2024 |
SC 13D/A 1 ctc-sc13daamend4.htm SCHEDULE 13D/A - AMENDMENT NO. 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* ClearSign Technologies Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 185064102 (CUSIP Number) Robert T. Hoffman Sr. c/o clirSPV LLC 119 Warren Avenue, 3rd Floor S |
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| June 26, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 24, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| June 26, 2024 |
Exhibit 3.1 Delaware Page 1 The First State I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “CLEARSIGN TECHNOLOGIES CORPORATION”, FILED IN THIS OFFICE ON THE TWENTY-FIFTH DAY OF JUNE, A.D. 2024, AT 4:30 O`CLOCK P.M. 7513798 8100 SR# 20242980975 Authentication: 203793799 Date: 06-25-24 Y |
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| June 26, 2024 |
Amendment to Securities Purchase Agreement, dated June 26, 2024. Exhibit 10.2 CLEARSIGN TECHNOLOGIES CORPORATION AMENDMENT TO SECURITIES PURCHASE AGREEMENT This Amendment to the Securities Purchase Agreement (this “Amendment”), dated as of June 26, 2024, is made by and between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and clirSPV LLC (the “Purchaser”). Unless otherwise defined herein, capitalized terms shall have the meanings a |
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| June 20, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 16, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commi |
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| June 20, 2024 |
Exhibit 99.1 ClearSign Technologies Announces Full Exercise of Participation Right Granted to clirSPV LLC and Board Transition TULSA, Okla., June 20, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions |
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| June 20, 2024 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| June 10, 2024 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| June 7, 2024 |
Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 3, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commis |
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| May 28, 2024 |
ClearSign Technologies Corporation Provides First Quarter 2024 Update Exhibit 99.1 ClearSign Technologies Corporation Provides First Quarter 2024 Update TULSA, Okla., May 23, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for |
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| May 28, 2024 |
Event Name: ClearSign Technologies First Quarter 2024 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies First Quarter 2024 Conference Call Event Date: Thursday, May 23, 2024, 5:00 p.m. Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; Chief Financial Officer Jim Deller; Chief Executive Officer Presentation Operator: Good afternoon, and welcome to the ClearSign Technologies First Quarter 2024 Conference Call. [Operator Inst |
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| May 28, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 23, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commis |
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| May 20, 2024 |
As filed with the Securities and Exchange Commission on May 20, 2024 As filed with the Securities and Exchange Commission on May 20, 2024 Registration No. |
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| May 20, 2024 |
Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Share(4) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee(5) Fees to be Paid Equity Common stock, par value $0. |
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| May 20, 2024 |
Exhibit 10.25 CLEARSIGN TECHNOLOGIES CORPORATION AMENDMENT TO WARRANT AGENCY AGREEMENT This Amendment to the Warrant Agency Agreement (this “Amendment”), dated as of May 15, 2024, is made by and between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and VStock Transfer, LLC (“VStock”). Unless otherwise defined herein, capitalized terms shall have the meanings assigned |
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| May 15, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00 |
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| May 10, 2024 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| May 10, 2024 |
Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 10, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commis |
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| May 10, 2024 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ◻ Definitive Proxy Statement ⌧ Definitive Additional Materials ◻ Soliciting Material Pursuant to §240. |
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| May 3, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 2, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commiss |
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| April 30, 2024 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| April 26, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-3 |
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| April 25, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 23, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| April 25, 2024 |
Event Name: ClearSign Technologies Full Year 2023 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies Full Year 2023 Conference Call Event Date: Tuesday, April 23, 2024, 5:00 p.m. Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; Chief Financial Officer Jim Deller; Chief Executive Officer Analysts Amit Dayal; H.C. Wainwright Presentation Operator: Good afternoon, and welcome to the ClearSign Technologies Fourth Quarter a |
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| April 25, 2024 |
ClearSign Technologies Corporation Provides Full Year 2023 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Full Year 2023 Update TULSA, Okla., April 23, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for th |
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| April 24, 2024 |
ClearSign Technologies Corporation Appoints David Maley to Board of Directors Exhibit 99.2 ClearSign Technologies Corporation Appoints David Maley to Board of Directors Tulsa, OK, April 24, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy and operational efficiency, and safety while dramatically reducing emissions, today announces that David Maley |
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| April 24, 2024 |
Exhibit 10.1 April 23, 2024 Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear David Maley: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a member of our Board. We look forward to working with you on the Board. Should you choose to accept t |
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| April 24, 2024 |
Exhibit 99.1 ClearSign Technologies Corporation Announces Closing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants TULSA, Okla., April, 23, 2024 /PRNewswire/ - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency |
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| April 24, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 23, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| April 23, 2024 |
Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR |
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| April 23, 2024 |
Exhibit 10.1 CLEARSIGN TECHNOLOGIES CORPORATION AMENDMENT TO SECURITIES PURCHASE AGREEMENT This Amendment to the Securities Purchase Agreement (this “Amendment”), dated as of April 22, 2024, is made by and between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and Andrew Schwartzberg, an individual (the “Purchaser”). Unless otherwise defined herein, capitalized terms s |
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| April 23, 2024 |
Filed Pursuant to Rule 424(b)(5) Registration No. 333-265967 PROSPECTUS SUPPLEMENT (To Prospectus Dated August 12, 2022) 4,620,760 Shares of Common Stock and Redeemable Warrants to Purchase up to 4,620,760 Shares of Common Stock We are offering 4,620,760 shares of our common stock and 4,620,760 redeemable warrants (the “warrants”) to purchase up to 4,620,760 shares of our common stock pursuant to |
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| April 23, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 22, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| April 19, 2024 |
Exhibit 4.2 THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER SECURITIES LAWS AND MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF (1) AN EFFECTIVE REGISTRATION STATEMENT COVERING SUCH SECURITIES UNDER THE SECURITIES ACT AND ANY OTHER APPLI |
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| April 19, 2024 |
Exhibit 10.4 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of April 19, 2024, between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively the “Purchasers”). WHEREAS, subject to the terms and |
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| April 19, 2024 |
Exhibit 4.3 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR |
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| April 19, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 19, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Comm |
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| April 19, 2024 |
Exhibit 10.2 Form of Lock-Up Agreement – ClearSign Technologies Corporation (Directors and Officers) , 2024 Public Ventures, LLC 14135 Midway Road, Suite G150 Addison, TX 75001 Ladies and Gentlemen: The undersigned understands that Public Ventures, LLC (the “Underwriter”) proposes to enter into an Underwriting Agreement (the “Underwriting Agreement”) with ClearSign Technologies Corporation, a Dela |
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| April 19, 2024 |
Exhibit 10.1 CLEARSIGN TECHNOLOGIES CORPORATION and VStock Transfer, LLC, as Warrant Agent Warrant Agency Agreement Dated as of April , 2024 WARRANT AGENCY AGREEMENT WARRANT AGENCY AGREEMENT, dated as of April , 2024 (“Agreement”), by and between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and VStock Transfer, LLC, a New York limited liability trust company (“VStock |
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| April 19, 2024 |
Exhibit 4.4 THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER SECURITIES LAWS AND MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF (1) AN EFFECTIVE REGISTRATION STATEMENT COVERING SUCH SECURITIES UNDER THE SECURITIES ACT AND ANY OTHER APPLI |
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| April 19, 2024 |
Exhibit 1.1 4,620,760 SHARES of Common Stock and 4,620,760 warrants to purchase Shares of Common Stock CLEARSIGN TECHNOLOGIES CORPORATION UNDERWRITING AGREEMENT April 19, 2024 Public Ventures, LLC 14135 Midway Road, Suite G-150 Addison, TX 75001 Ladies and Gentlemen: The undersigned, ClearSign Technologies Corporation, a company incorporated under the laws of Delaware (the “Company”), hereby confi |
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| April 19, 2024 |
Exhibit 4.1 REDEEMABLE COMMON STOCK PURCHASE WARRANT clearsign technologies Corporation Warrant Shares: Initial Exercise Date: , 2024 THIS REDEEMABLE COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after t |
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| April 19, 2024 |
Exhibit 10.3 Form of Lock-Up Agreement – ClearSign Technologies Corporation (clirSPV, LLC) , 2024 Public Ventures, LLC 14135 Midway Road, Suite G150 Addison, TX 75001 Ladies and Gentlemen: The undersigned understands that Public Ventures, LLC (the “Underwriter”) proposes to enter into an Underwriting Agreement (the “Underwriting Agreement”) with ClearSign Technologies Corporation, a Delaware corpo |
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| April 19, 2024 |
SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT NO. 2, DATED APRIL 19, 2024 Filed Pursuant to Rule 424(b)(5) Registration No. 333-265967 The information in this preliminary prospectus supplement is not complete and may be changed. Neither this preliminary prospectus supplement nor the accompanying prospectus is an offer to sell these securities, and we are not soliciting an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted. SUBJEC |
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| April 19, 2024 |
Exhibit 99.1 ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants TULSA, Okla., April, 19, 2024 /PRNewswire/ - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency |
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| April 1, 2024 |
As filed with the U.S. Securities and Exchange Commission on April 1, 2024 As filed with the U.S. Securities and Exchange Commission on April 1, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ClearSign Technologies Corporation (Exact name of Registrant as specified in its charter) Delaware 26-2056298 (State or other jurisdiction of incorporation or organiz |
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| April 1, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-355 |
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| April 1, 2024 |
Exhibit 97 CLEARSIGN TECHNOLOGIES CORPORATION CLAWBACK POLICY 1. Introduction The Board of Directors (the “Board”) of ClearSign Technologies Corporation (the “Company”) believes that it is in the best interests of the Company and its stockholders to adopt this Clawback Policy (this “Policy”), which provides for the recoupment of certain executive compensation in the event of an accounting restatem |
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| April 1, 2024 |
Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0. |
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| April 1, 2024 |
DESCRIPTION OF SECURITIES General The following summary of certain material terms of the securities of ClearSign Technologies Corporation (the “Company,” “we,” “us” or “our”) is not intended to be a complete summary of the rights and preferences of such securities. |
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| March 19, 2024 |
Filed Pursuant to Rule 433 of the Securities Act of 1933 Filed Pursuant to Rule 433 of the Securities Act of 1933 Issuer Free Writing Prospectus dated March 19, 2024 Registration Statement No. |
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| March 18, 2024 |
Filed pursuant to Rule 424(b)(5) Registration No. 333-265967 PROSPECTUS SUPPLEMENT (To the Prospectus dated August 12, 2022) We previously entered into an At-the-Market Sales Agreement (the “Sales Agreement”) with Virtu Americas LLC (“Virtu”), dated December 23, 2020, relating to the sales of shares of our common stock, par value $0.0001 per share, offered by the Prospectus (as defined below). In |
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| March 18, 2024 |
SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT, DATED MARCH 18, 2024 Filed Pursuant to Rule 424(b)(5) Registration No. 333-265967 The information in this preliminary prospectus supplement is not complete and may be changed. Neither this preliminary prospectus supplement nor the accompanying prospectus is an offer to sell these securities, and we are not soliciting an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted. SUBJEC |
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| February 7, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 7, 2024 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Co |
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| February 7, 2024 |
Exhibit 99.1 ClearSign Technologies Corporation Provides Preliminary 2023 Financial Results Company Expects Revenues of Approximately $1.2MM During Fourth Quarter of 2023 (Unaudited) TULSA, Okla., February 7, 2024 - ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational |
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| February 5, 2024 |
SC 13D/A 1 ctc-sc13daamend3.htm SCHEDULE 13D/A - AMENDMENT NO. 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* ClearSign Technologies Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 185064102 (CUSIP Number) Robert T. Hoffman Sr. c/o clirSPV LLC 119 Warren Avenue, 3rd Floor S |
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| January 5, 2024 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 30, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation |
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| November 27, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 24, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (C |
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| November 15, 2023 |
Exhibit 99.2 [CLIR] ClearSign Technologies Q3 2023 Earnings Conference Call Tuesday, November 14, 2023, 5:00 PM ET. Officers and Speakers Matthew Selinger, Firm IR Group Brent Hinds, Chief Financial Officer Jim Deller, Chief Executive Officer Analysts Eric Gruskin, Private Investor Robert Kecseg, Las Colinas Capital Management Jeff Feinglas, Private Investor Brad Van Dooker, Private Investor Prese |
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| November 15, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 14, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (C |
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| November 15, 2023 |
ClearSign Technologies Corporation Provides Third Quarter 2023 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Third Quarter 2023 Update TULSA, Okla., November 14, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations |
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| November 14, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe |
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| September 22, 2023 |
Exhibit 99.1 ClearSign Technologies Corporation Receives Support and Collaboration from SoCalGas for its Flexible Hydrogen Fueled Ultra Low NOx Process Burner Project TULSA, Okla., September 20, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and |
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| September 22, 2023 |
Financial Statements and Exhibits, Other Events UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 20, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) ( |
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| September 1, 2023 |
2,246,019 shares of common stock Filed Pursuant to Rule 424(b)(3) Registration No. 333-273927 PROSPECTUS 2,246,019 shares of common stock This prospectus relates to the offer and sale from time to time by the selling stockholder named in this prospectus (the “Selling Stockholder”) of up to 2,246,019 shares (the “Shares”) of common stock, par value $0.0001 per share, of ClearSign Technologies Corporation, a Delaware corporation (t |
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| September 1, 2023 |
ClearSign Technologies Corporation Provides Second Quarter 2023 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2023 Update TULSA, Okla., August 31, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations |
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| September 1, 2023 |
Event Name: ClearSign Technologies Second Quarter 2023 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies Second Quarter 2023 Conference Call Event Date: Thursday, August 31, 2023, 5:00 PM Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; VP of Finance and Controller Jim Deller; President and Chief Executive Officer Analysts Sameer Joshi; H.C. Wainwright Robert Kecseg; Las Colinas Capital Management Kevin Dunn; Private Inves |
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| September 1, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 31, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 29, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 29, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Delaware 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Com |
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| August 29, 2023 |
Exhibit 99.1 ClearSign Technologies Corporation Awarded Phase 2 Grant from Department of Energy to Commercialize a Flexible Hydrogen Fueled Ultra Low NOx Process Burner TULSA, Okla., August 29, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and |
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| August 14, 2023 |
Exhibit 10.1 INDEMNIFICATION AGREEMENT This Indemnification Agreement (“Agreement”), dated as of the Effective Date, is entered by and between ClearSign Technologies Corporation, a Delaware corporation (the “Company”), and (“Indemnitee”). This Agreement supersedes and replaces any and all previous Agreements between the Company and Indemnitee covering the subject matter of this Agreement. RECITALS |
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| August 14, 2023 |
Form 8-A/A, filed with the SEC on August 14, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A/A (Amendment No. 2) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in its charter) Delaware 26-2056298 (State of incorporation or organization) (I.R.S. Employer Identific |
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| August 14, 2023 |
Exhibit 10.2 |
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| August 14, 2023 |
Corporate Presentation, dated August 2023 Exhibit 99.2 Corporate Presentation August 2023 NASDAQ: CLIR Commercializing Innovative Combustion & Sensing Technologies 2 Safe Harbor Statement This presentation is made solely for informational purposes and no representation or warranty, express or implied, is made by ClearSign Technologies Corporation (“ClearSign,” “we,” “us,” “our,” and, together with our subsidiaries, the “Company”) or any o |
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| August 14, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001 |
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| August 14, 2023 |
Press Release, dated August 8, 2023 Exhibit 99.1 ClearSign Technologies Corporation Announces Promotion of Brent Hinds to Chief Financial Officer TULSA, Okla., August 8, 2023 — ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, announces that |
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| August 11, 2023 |
As filed with the U.S. Securities and Exchange Commission on August 11, 2023 As filed with the U.S. Securities and Exchange Commission on August 11, 2023 Registration Statement No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in its charter) Delaware 26-2056298 (State or other jurisdiction of incorporatio |
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| August 11, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in its charter) Delaware 26-2056298 (State of incorporation or organization) (I.R.S. Employer Identific |
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| August 11, 2023 |
Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to Be Paid Equity Common stock, $0. |
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| August 11, 2023 |
Form of Common Stock Certificate Exhibit 4.1 NUMBER SHARES CERT.9999 Incorporated under the laws of Delaware *******9,000,000,000******* COMMON STOCK CUSIP 999999ZZ9 THIS CERTIFIES THAT * SPECIMEN * Is The Owner of * NINE BILLION AND 00/100 * FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF ClearSign Technologies Corporation transferable on the books of the Corporation by the holder hereof, in person or by duly authorized |
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| June 15, 2023 |
Youâve Exceeded the SECâs Traffic Limit U.S. Securities and Exchange Commission Youâve Exceeded the SECâs Traffic Limit Your request rate has exceeded the SECâs maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes. Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains |
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| June 15, 2023 |
Exhibit 3.3 CERTIFICATE OF INCORPORATION OF CLEARSIGN TECHNOLOGIES CORPORATION The undersigned, a corporation organized and existing under the laws of the State of Delaware adopts the following Certificate of Incorporation: ARTICLE I. The name of the corporation is ClearSign Technologies Corporation (the “Corporation”). ARTICLE II. The address of the Corporation’s registered office in the State of |
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| June 15, 2023 |
Exhibit 3.1 CERTIFICATE OF CONVERSION OF CLEARSIGN TECHNOLOGIES CORPORATION (a Washington corporation) to CLEARSIGN TECHNOLOGIES CORPORATION (a Delaware corporation) Pursuant to Section 265 of the Delaware General Corporation Law 1) The jurisdiction where the non-Delaware Corporation first formed is: Washington. 2) The jurisdiction immediately prior to filing this Certificate of Conversion is: Was |
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| June 15, 2023 |
Exhibit 3.4 BYLAWS OF CLEARSIGN TECHNOLOGIES CORPORATION (THE “CORPORATION”) ARTICLE I OFFICES Section 1.1. Registered Office. The address of the Corporation’s registered office in the State of Delaware is 2140 South Dupont Hwy, Camden, DE 19934, and the name of the Corporation’s registered agent at such address is Parasec. ARTICLE II STOCKHOLDERS MEETINGS Section 2.1 Annual Meetings. The annual m |
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| June 15, 2023 |
U.S. Securities and Exchange Commission Youâve Exceeded the SECâs Traffic Limit Your request rate has exceeded the SECâs maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes. Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains |
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| June 15, 2023 |
Exhibit 3.2 ARTICLES OF ENTITY CONVERSION OF CLEARSIGN TECHNOLOGIES CORPORATION (a Washington corporation) to CLEARSIGN TECHNOLOGIES CORPORATION (a Delaware corporation) Pursuant to the applicable provisions of the Revised Code of Washington (“RCW”), the undersigned corporation hereby executes the following Articles of Entity Conversion: 1. Name of Entity. The name of the converted ent |
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| June 15, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 14, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File N |
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| June 8, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 6, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File No |
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| May 30, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 25, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File No |
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| May 30, 2023 |
ClearSign Technologies Corporation Regains Compliance with Nasdaq Listing Requirements Exhibit 99.1 ClearSign Technologies Corporation Regains Compliance with Nasdaq Listing Requirements Tulsa, OK., May 30, 2023–ClearSign Technologies Corporation (Nasdaq: CLIR) (“ClearSign” or the “Company”), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announced that it has re |
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| May 24, 2023 |
ClearSign Technologies Corporation Provides First Quarter 2023 Update Exhibit 99.1 ClearSign Technologies Corporation Provides First Quarter 2023 Update TULSA, Okla., May 18, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for |
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| May 24, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 18, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File No |
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| May 24, 2023 |
Event Name: ClearSign Technologies First Quarter 2023 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies First Quarter 2023 Conference Call Event Date: Thursday, May 18, 2023, 5:00 PM Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; VP of Finance and Controller Jim Deller; President and Chief Executive Officer Analysts Amit Dayal; H.C. Wainwright Mark Gronit; Private Investor Robert Kecseg; Las Colinas Capital Management P |
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| May 15, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00 |
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| May 2, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 2, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File No. |
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| April 25, 2023 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| April 25, 2023 |
SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ◻ Definitive Proxy Statement ⌧ Definitive Additional Materials ◻ Soliciting Material Pursuant to §240. |
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| April 14, 2023 |
Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. |
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| April 7, 2023 |
ClearSign Technologies Corporation Provides Full Year 2022 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Full Year 2022 Update TULSA, Okla., April 6, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for the |
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| April 7, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 6, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission File N |
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| April 7, 2023 |
[CLIR] ClearSign Technologies Q4 and FY2022 Conference Call Thursday, April 6, 2023, 5:00 PM ET. EX-99.2 3 tm2312141d1ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 [CLIR] ClearSign Technologies Q4 and FY2022 Conference Call Thursday, April 6, 2023, 5:00 PM ET. Officers and Speakers Matthew Selinger, Firm IR Group Brent Hinds, VP of Finance and Controller Jim Deller, President and Chief Executive Officer Analysts Amit Dayal, H.C. Wainwright Robert Kecseg, Las Colinas Capital Management Jeff Feinglas, P |
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| March 31, 2023 |
Filing Fee Table (filed herewith) EXHIBIT 107 Calculation of Filing Fee Table Form S-8 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0. |
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| March 31, 2023 |
As filed with the U.S. Securities and Exchange Commission on March 31, 2023 As filed with the U.S. Securities and Exchange Commission on March 31, 2023 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ClearSign Technologies Corporation (Exact name of Registrant as specified in its charter) Washington 26-2056298 (State or other jurisdiction of incorporation or orga |
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| March 31, 2023 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-355 |
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| February 24, 2023 |
Exhibit 10.1 February 20th, 2023 Catharine de Lacy Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear Catharine de Lacy: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a member of our Board. We look forward to working with you on the Board. |
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| February 24, 2023 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 18, 2023 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization |
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| February 24, 2023 |
ClearSign Technologies Corporation Announces Board Transitions Exhibit 99.1 ClearSign Technologies Corporation Announces Board Transitions Tulsa, OK, February 23, 2023 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy and operational efficiency, and safety while dramatically reducing emissions, today announces that Susanne Meline is stepp |
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| December 9, 2022 |
Event Name: [ CLIR ] - ClearSign Technologies Third Quarter 2022 Conference Call Exhibit 99.1 Event Name: [ CLIR ] - ClearSign Technologies Third Quarter 2022 Conference Call Event Date: Thursday, December 1, 2022, 5:00 PM Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; VP of Finance Jim Deller; President and Chief Executive Officer Analysts Sameer Joshi; H.C. Wainwright Jeff Feinglass; Private Investor Presentation Operator: Hello and welcome t |
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| December 9, 2022 |
Regulation FD Disclosure, Financial Statements and Exhibits SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 1, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation) (Commission Fil |
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| November 14, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe |
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| November 4, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 1, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in its charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporatio |
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| September 6, 2022 |
Event Name: [ CLIR ] - ClearSign Technologies Second Quarter 2022 Conference Call Exhibit 99.2 Event Name: [ CLIR ] - ClearSign Technologies Second Quarter 2022 Conference Call Event Date: Thursday, September 1, 2022, 5:00 PM Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Brent Hinds; VP of Finance Jim Deller; President and Chief Executive Officer Analysts Amit Dayal; H.C. Wainwright Robert Kecseg; Las Colinas Capital Management Presentation Operator: Good d |
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| September 6, 2022 |
ClearSign Technologies Corporation Provides Second Quarter 2022 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2022 Update TULSA, Okla., September 1, 2022 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operation |
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| September 6, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 1, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation o |
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| August 15, 2022 |
Exhibit 10.1 AMENDMENT TO EMPLOYMENT AGREEMENT ? This AMENDMENT TO EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into as of May 11, 2022, between ClearSign Technologies Corporation, a Washington corporation (the ?Company?), and Colin James Deller (?Executive?). WHEREAS, the Company and Executive entered into that certain Employment Agreement, dated January 28, 2019 (the ?Employment Agreement? |
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| August 15, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. |
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| August 10, 2022 |
CORRESP 1 filename1.htm August 10, 2022 U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 RE: ClearSign Technologies Corporation Registration Statement on Form S-3 Filed July 1, 2022 File No. 333-265967 Acceleration Request Requested Date: Friday, August 12, 2022 Requested Time: 5:00 p.m. Eastern Time Ladies and Gentlemen: In accordan |
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| August 2, 2022 |
Exhibit 10.1 July 28, 2022 Gary J. DiElsi 18 Pierrepont Drive Ridgefield, CT 06877 Re: Board of Directors of ClearSign Technologies Corporation - Offer Letter Dear Gary: On behalf of ClearSign Technologies Corporation (the “Company,” “ClearSign,” “we,” “our” or “us”) and our Board of Directors (“Board”), I am pleased to offer you a position as a member of our Board. We look forward to working with |
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| August 2, 2022 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 28, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (C |
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| July 29, 2022 |
As filed with the Securities and Exchange Commission on July 29, 2022 Table of Contents As filed with the Securities and Exchange Commission on July 29, 2022 ? Registration No. |
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| July 19, 2022 |
ClearSign Technologies Corp. 8023 East 63rd Place, Suite 101 Tulsa, OK 74133 ClearSign Technologies Corp. 8023 East 63rd Place, Suite 101 Tulsa, OK 74133 VIA EDGAR July 19, 2022 U.S. Securities & Exchange Commission Division of Corporation Finance Office of Life Sciences 100 F Street, NE Washington, D.C. 20549 Attn: Tyler Howes Christine Westbrook Re: ClearSign Technologies Corp. Registration Statement on Form S-3 Filed July 1, 2022 File No. 333-265967 Ladies and Gentlemen |
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| July 18, 2022 |
Exhibit 1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a statement on Schedule 13D, including all amendments thereto, with respect to the common stock, par value $0. |
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| July 18, 2022 |
CLIR / ClearSign Combustion Corp / clirSPV LLC - FORM SC 13D/A Activist Investment United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) Information to be Included in Statements Filed Pursuant to ? 240.13d-1(a) and Amendments Thereto Filed Pursuant to ? 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 2)* ClearSign Technologies Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 185064102 (CU |
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| July 18, 2022 |
Exhibit 2 clirSPV LLC May 26, 2022 Board of Directors ClearSign Technologies Corporation Re: Waiver of Notice Requirement and Participation Right Ladies and Gentlemen: Pursuant to Section 2 of Appendix IV of that certain Stock Purchase Agreement (the "Agreement") entered into on July 12, 2018 between ClearSign Technologies Corporation (the "Company") and clirSPV LLC (the "Investor"), the Investor |
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| July 1, 2022 |
As filed with the Securities and Exchange Commission on July 1, 2022 Table of Contents As filed with the Securities and Exchange Commission on July 1, 2022 ? Registration No. |
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| July 1, 2022 |
FORM OF CLEARSIGN TECHNOLOGIES CORPORATION INDENTURE DATED AS OF [ ] [Name of Trustee] As TRUSTEE Exhibit 4.2 FORM OF CLEARSIGN TECHNOLOGIES CORPORATION INDENTURE DATED AS OF [ ] [Name of Trustee] As TRUSTEE ? ? 1 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE ?1 Section 1.1 Definitions. ?1 Section 1.2 Other Definitions. ?5 Section 1.3 Incorporation by Reference of Trust Indenture Act. ?5 Section 1.4 Rules of Construction. ?6 ARTICLE II THE SECURITIES ?6 Section 2. |
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| July 1, 2022 |
? Exhibit 107 ? Calculation of Filing Fee Tables ? Form S-3 (Form Type) ? ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) ? Table 1-Newly Registered and Carry Forward Securities ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (2) Proposed Maximum Aggregate Offering Price (3) Fee Rate Amount of Registration Fee Fees to Be Paid Equity Common Stock, par value $0. |
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| June 7, 2022 |
ClearSign Technologies Corporation Provides First Quarter 2022 Update Exhibit 99.1 ClearSign Technologies Corporation Provides First Quarter 2022 Update Tulsa, OK, June 2, 2022 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for the |
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| June 7, 2022 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 2, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (Co |
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| June 7, 2022 |
ClearSign Technologies First Quarter 2022 Conference Call Thursday, June 6, 2022, 5:00 PM Eastern EX-99.2 3 tm2217668d1ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 ClearSign Technologies First Quarter 2022 Conference Call Thursday, June 6, 2022, 5:00 PM Eastern Executives Matthew Selinger; Firm IR Group Jim Deller; President and CEO Brent Hinds; VP of Finance and Controller Analysts Jeff Feinglass; Private Investor Robert Kecseg; Las Colinas Capital Management Presentation Operator: Good day, and welc |
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| June 1, 2022 |
Financial Statements and Exhibits, Other Events SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 1, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (Co |
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| June 1, 2022 |
Exhibit 99.1 ClearSign Technologies Corporation Announces Closing of Public Offering Underwriter Exercises Its Overallotment Option in Full Tulsa, OK. June 1, 2022 ?ClearSign Technologies Corporation (Nasdaq: CLIR) (?ClearSign? or the ?Company?), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing e |
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| May 31, 2022 |
Exhibit 1.1 UNDERWRITING AGREEMENT between CLEARSIGN TECHNOLOGIES CORPORATION and NEWBRIDGE SECURITIES CORPORATION Common Stock May 27, 2022 Newbridge Securities Corporation 1200 North Federal Highway Boca Raton, Florida 33432 Ladies and Gentlemen: The undersigned, ClearSign Technologies Corporation, a corporation formed under the laws of the State of Washington (the ?Company?), hereby confirms it |
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| May 31, 2022 |
Exhibit 10.1 clirSPV LLC May 26, 2022 Board of Directors ClearSign Technologies Corporation Re: Waiver of Notice Requirement and Participation Right Ladies and Gentlemen: Pursuant to Section 2 of Appendix IV of that certain Stock Purchase Agreement (the ?Agreement?) entered into on July 12, 2018 between ClearSign Technologies Corporation (the ?Company?) and clirSPV LLC (the ?Investor?), the Invest |
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| May 31, 2022 |
ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock Exhibit 99.2 ClearSign Technologies Corporation Prices Underwritten Public Offering of Common Stock Tulsa, OK. May 27, 2022 ?ClearSign Technologies Corporation (Nasdaq: CLIR) (?ClearSign? or the ?Company?), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announced the pricing of |
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| May 31, 2022 |
3,640,000 Shares of Common Stock 424B5 1 tm2217206d1424b5.htm 424B5 Filed pursuant to Rule 424(b)(5) Registration No. 333-232402 PROSPECTUS SUPPLEMENT (To the Prospectus Dated July 12, 2019) 3,640,000 Shares of Common Stock We are offering shares of our common stock. Our common stock is listed on the Nasdaq Capital Market under the symbol “CLIR.” On May 25, 2022, the last reported sale price of our common stock on the Nasdaq Capi |
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| May 31, 2022 |
ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock Exhibit 99.1 ClearSign Technologies Corporation Announces Proposed Public Offering of Common Stock Tulsa, OK. May 26, 2022 ?ClearSign Technologies Corporation (Nasdaq: CLIR) (?ClearSign? or the ?Company?), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announced that it is prop |
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| May 31, 2022 |
Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 26, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (Co |
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| May 26, 2022 |
SUBJECT TO COMPLETION, DATED MAY 26, 2022 Filed pursuant to Rule 424(b)(5) Registration No. 333-232402 The information in this preliminary prospectus supplement is not complete and may be changed. Neither this preliminary prospectus supplement nor the accompanying prospectus is an offer to sell these securities, and we are not soliciting an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted. SUBJEC |
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| May 16, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 00 |
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| April 26, 2022 |
Filing Fee Table (filed herewith) EXHIBIT 107 Calculation of Filing Fee Table Form S-8 (Form Type) ClearSign Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0. |
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| April 26, 2022 |
As filed with the U.S. Securities and Exchange Commission on April 26, 2022 As filed with the U.S. Securities and Exchange Commission on April 26, 2022 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ClearSign Technologies Corporation (Exact name of Registrant as specified in its charter) Washington 26-2056298 (State or other jurisdiction of incorporation or orga |
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| April 22, 2022 |
DEF 14A 1 tmb-20220606xdef14a.htm DEF 14A Table of Contents SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ⌧ Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commiss |
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| April 22, 2022 |
DEFA14A 1 tmb-20220422xdefa14a.htm DEFA14A SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ⌧ Filed by a Party other than the Registrant ◻ Check the appropriate box: ◻ Preliminary Proxy Statement ◻ Confidential, For Use of the Commission Only (as perm |
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| April 14, 2022 |
Filed pursuant to Rule 424(b)(5) Registration No. 333-232402 PROSPECTUS SUPPLEMENT (To the Prospectus Supplement Dated December 23, 2020 To the Prospectus Dated July 12, 2019) Up to $8,800,000 Common Stock This prospectus supplement amends and supplements the information in the prospectus, dated July 19, 2019 (the ?Prospectus?), filed with the Securities and Exchange Commission as a part of our re |
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| April 8, 2022 |
Exhibit 99.2 [ CLIR ] - ClearSign Technologies Q4 and Full Year 2021 Conference Call Wednesday, April 6, 2022 5:00 PM EST. Officers Matthew Selinger, Firm IR Group Jim Deller, President and Chief Executive Officer Brent Hinds, VP of Finance and Controller Analysts Amit Dayal, H.C. Wainwright Peter Jacobs, Stifel Jeff Feinglass, Private Investor Robert Kecseg, Las Colinas Capital Management Robert |
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| April 8, 2022 |
ClearSign Technologies Corporation Provides Full Year 2021 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Full Year 2021 Update Tulsa, OK, April 6, 2022 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for the fo |
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| April 8, 2022 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 6, 2022 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (C |
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| March 31, 2022 |
FIRST AMENDMENT TO LEASE ? ? THIS FIRST AMENDMENT TO LEASE (?First Amendment?) is entered into effective this day of July 29, 2019 (?Effective Date?), by and between TULSA PORTFOLIO OKLAHOMA REALTY LP, a Delaware limited partnership (?Landlord?), and CLEARSIGN COMBUSTION CORPORATION, a Washington corporation (?Tenant?). |
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| March 31, 2022 |
? ? ? ? ? LEASE AGREEMENT THIS LEASE AGREEMENT (this "Lease") is entered into as of June 20, 2016, between Paradigm Realty Advisors, L. |
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| March 31, 2022 |
CLEARSIGN TECHNOLOGIES CORPORATION 2021 EQUITY INCENTIVE PLAN STOCK OPTION AGREEMENT NOTICE OF STOCK OPTION GRANT Unless otherwise defined herein, the terms defined in the ClearSign Technologies Corporation 2021 Equity Incentive Plan (the ?Plan?) will have the same defined meanings in this Stock Option Agreement which includes the Notice of Stock Option Grant (the ?Notice of Grant?), the Terms and Conditions of Stock Option Grant, attached hereto as Exhibit A, the Exercise Notice, attached hereto as Exhibit B, and all other exhibits, appendices, and addenda attached hereto (together, the ?Option Agreement?). |
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| March 31, 2022 |
CLEARSIGN TECHNOLOGIES CORPORATION 2021 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AGREEMENT NOTICE OF RESTRICTED STOCK UNIT GRANT Unless otherwise defined herein, the terms defined in the ClearSign Technologies Corporation 2021 Equity Incentive Plan (the ?Plan?) will have the same defined meanings in this Restricted Stock Unit Agreement which includes the Notice of Restricted Stock Unit Grant (the ?Notice of Grant?), the Terms and Conditions of Restricted Stock Unit Grant, attached hereto as Exhibit A, and all other exhibits, appendices, and addenda attached hereto (the ?Award Agreement?). |
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| March 31, 2022 |
CLEARSIGN TECHNOLOGIES CORPORATION 2021 EQUITY INCENTIVE PLAN NOTICE OF RESTRICTED STOCK AWARD ? Participant?s Name and Address: ? In accordance with the approval of the Compensation Committee of the Board of Directors of ClearSign Technologies Corporation (the ?Company?) on November 18, 2021, you (the ?Participant?) have been granted a stock bonus in the form of a restricted stock award (the ?Award?) consisting of shares of Common Stock of the Company as set forth below. |
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| March 31, 2022 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. |
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| March 31, 2022 |
SECOND AMENDMENT TO LEASE ? ? THIS SECOND AMENDMENT TO LEASE (?Second Amendment?) is entered into effective this ? 14 day of January? ? 20 20? ? (?Effective Date?), by and between TULSA ? PORTFOLIO OKLAHOMA REALTY LP, a Delaware limited partnership (?Landlord?), and CLEARSIGN COMBUSTION CORPORATION, a Washington corporation (?Tenant?). |
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| December 23, 2021 |
Mitchell Silberberg & Knupp llp Mitchell Silberberg & Knupp llp A Law Partnership Including Professional Corporations Blake J. |
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| December 23, 2021 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment No. 1 (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001 |
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| December 23, 2021 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A Amendment No. 1 (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Numbe |
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| November 29, 2021 |
ClearSign Technologies Corporation Provides Third Quarter 2021 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Third Quarter 2021 Update SEATTLE, November 23, 2021 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for |
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| November 29, 2021 |
Exhibit 99.2 Event Name: [ CLIR ] - ClearSign Technologies Third Quarter 2021 Conference Call Event Date: Tuesday, November 23, 2021 5:00 PM Eastern Time Officers and Speakers Matthew Selinger; Firm IR Group Jim Deller; President and Chief Executive Officer Brent Hinds; VP of Finance Analysts Amit Dayal; H.C. Wainwright Jeff Feinglass; Private Investor Perry Monty; Private Investor Presentation Op |
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| November 29, 2021 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 23, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization |
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| November 12, 2021 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. |
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| November 12, 2021 |
Exhibit 10.1 ? ? September 30th, 2021 ? Brent Hinds C/O Robert Half Executuve Search ? Re: Offer of Employment: Vice President and Controller ? Dear Brent: ? ClearSign Technologies Corporation is pleased to offer you a position as Vice President and Controller, reporting directly to our Chief Executive Officer, commencing Monday, October 18, 2021. In this position, you may be deemed to be an offic |
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| October 18, 2021 |
ClearSign Technologies Corporation Announces Hiring of Brent Hinds as VP of Finance Exhibit 99.1 ClearSign Technologies Corporation Announces Hiring of Brent Hinds as VP of Finance SEATTLE, October 18, 2021 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announces the hiring of |
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| October 18, 2021 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 18, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) |
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| September 10, 2021 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 8, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization |
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| September 10, 2021 |
Redline of Bylaws, as amended, effective September 8, 2021 Exhibit 3.2 BYLAWS OF CLEARSIGN COMBUSTION TECHNOLOGIES CORPORATION SECTION 1. DEFINITIONS As used in these Bylaws, the following terms shall have the following meanings: "Articles of Incorporation" means the corporation's Articles of Incorporation and all amendments as filed with the Washington Secretary of State. "Board" means the Board of Directors of the corporation. "Electronic transmission" |
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| September 10, 2021 |
ClearSign Technologies Corporation Provides Second Quarter 2021 Update Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2021 Update SEATTLE, September 8, 2021 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for |
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| September 10, 2021 |
Bylaws, as amended, effective September 8, 2021 EX-3.1 2 tm2127344d2ex3-1.htm EXHIBIT 3.1 Exhibit 3.1 BYLAWS OF CLEARSIGN TECHNOLOGIES CORPORATION (Amended as of September 8, 2021) SECTION 1. DEFINITIONS As used in these Bylaws, the following terms shall have the following meanings: "Articles of Incorporation" means the corporation's Articles of Incorporation and all amendments as filed with the Washington Secretary of State. "Board" means the |
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| September 10, 2021 |
EX-99.2 5 tm2127344d2ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 ClearSign Technologies Corporation [CLIR] Second Quarter 2021 Conference Call Wednesday, September 8, 2021, 5:00 PM ET. Company Participants: Matthew Selinger, Firm IR Group Jim Deller, President and Chief Executive Officer Analysts and Private Investors: Amit Dayal, H.C. Wainwright Robert Kecseg, Las Colinas Capital Management Jeff Feingla |
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| August 20, 2021 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. |
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| August 20, 2021 |
Letter Agreement dated April 20, 2021 by and between the Company and Brian G. Fike Exhibit 10.1 ? ClearSign Technologies Corp. Dear Brian, This letter confirms our discussion regarding your planned resignation from ClearSign Technologies Corporation that is set to occur on December 3, 2021. We value your commitment to ClearSign Technologies, and we hope that you will stay with us to continue your work and help effectuate a smooth transition of your responsibilities. To encourage |
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| August 16, 2021 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 12b-25 NOTIFICATION OF LATE FILING 001-35521 SEC FILE NUMBER 185064102 CUSIP NUMBER (Check One): ? Form 10-K ? Form 20-F ? Form 11-K x Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: June 30, 2021 ? Transit ion Report on Form 10-K ? Transit ion Report on Form 20-F ? Transit ion Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on Form N-SAR For the Transition Period Ended: Nothing in this form shall be construed to imply that the Commission has verified any information contained herein. |
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| July 30, 2021 |
ClearSign Technologies Corporation Announces Passing of Chief Financial Officer Brian Fike Exhibit 99.1 ClearSign Technologies Corporation Announces Passing of Chief Financial Officer Brian Fike SEATTLE, July 30, 2021 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today announces with great |
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| July 30, 2021 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 29, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (C |
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| July 7, 2021 |
Letter of Gumbiner Savett Inc., dated July 7, 2021. Exhibit 16.1 July 7, 2021 U.S. Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Ladies and Gentleman: We are the former independent registered public accounting firm for ClearSign Technologies Corporation and Subsidiary (the ?Company?). We have read the Company?s disclosure set forth in Item 4.01 ?Changes in Registrant?s Certifying Accountant? of the Company?s Current Repor |
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| July 7, 2021 |
Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 1, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (Co |
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| July 2, 2021 |
As filed with the U.S. Securities and Exchange Commission on July 2, 2021 As filed with the U.S. Securities and Exchange Commission on July 2, 2021 Registration No. 333-184884 Registration No. 333-204129 Registration No. 333-228267 Registration No. 333-238613 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registration Statement No. 333-184884 Post-Effective Amendment No. 1 to Form S-8 Registration State |
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| July 2, 2021 |
As filed with the U.S. Securities and Exchange Commission on July 2, 2021 As filed with the U.S. Securities and Exchange Commission on July 2, 2021 Registration No. 333-184884 Registration No. 333-204129 Registration No. 333-228267 Registration No. 333-238613 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registration Statement No. 333-184884 Post-Effective Amendment No. 1 to Form S-8 Registration State |
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| July 2, 2021 |
As filed with the U.S. Securities and Exchange Commission on July 2, 2021 As filed with the U.S. Securities and Exchange Commission on July 2, 2021 Registration No. 333-184884 Registration No. 333-204129 Registration No. 333-228267 Registration No. 333-238613 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registration Statement No. 333-184884 Post-Effective Amendment No. 1 to Form S-8 Registration State |
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| July 2, 2021 |
As filed with the U.S. Securities and Exchange Commission on July 2, 2021 As filed with the U.S. Securities and Exchange Commission on July 2, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ClearSign Technologies Corporation (Exact name of Registrant as specified in its charter) Washington 26-2056298 (State or other jurisdiction of incorporation or organi |
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| July 2, 2021 |
As filed with the U.S. Securities and Exchange Commission on July 2, 2021 As filed with the U.S. Securities and Exchange Commission on July 2, 2021 Registration No. 333-184884 Registration No. 333-204129 Registration No. 333-228267 Registration No. 333-238613 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-8 Registration Statement No. 333-184884 Post-Effective Amendment No. 1 to Form S-8 Registration State |
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| June 21, 2021 |
Event Name: ClearSign Technologies First Quarter 2021 Conference Call Exhibit 99.2 Event Name: ClearSign Technologies First Quarter 2021 Conference Call Event Date: Tuesday, June 15, 2021 5:00 PM ET Officers and Speakers Matthew Selinger; Investor Relations Brian Fike; Chief Financial Officer Jim Deller; Chief Executive Officer Analysts Amit Dayal; H.C. Wainwright David Brown; Private Investor Robert Kecseg; Las Colinas Capital Management Robert Harvey; Private Inve |
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| June 21, 2021 |
SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2021 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as specified in Charter) Washington 001-35521 26-2056298 (State or other jurisdiction of incorporation or organization) (C |
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| June 21, 2021 |
ClearSign Technologies Corporation Provides First Quarter 2021 Update Exhibit 99.1 ClearSign Technologies Corporation Provides First Quarter 2021 Update SEATTLE, June 15, 2021 - ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for the |
