CLIR 8-K: Press Release and Call Transcript Filed on August 14, 2025

Rhea-AI Filing Summary

ClearSign Technologies Corporation (CLIR) filed a Form 8-K disclosing the release of a press release and a conference call transcript dated August 14, 2025. The filing lists Items 2.02 (Results of Operations and Financial Condition), 7.01 (Regulation FD Disclosure) and 9.01 (Financial Statements and Exhibits) and identifies Exhibits 99.1 (press release) and 99.2 (conference call transcript). The cover page notes an Inline XBRL cover page file. The filing is signed by Colin James Deller, Chief Executive Officer. The document provides the existence and dates of disclosure materials but contains no operational metrics, earnings figures, transactions, or forward guidance in the text provided.

Positive

• 8-K executed and signed by CEO Colin James Deller
• Press release and conference call transcript dated August 14, 2025 are disclosed as exhibits
• Filing includes Inline XBRL cover page reference for structured data

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine 8-K disclosing a press release and call transcript; no financial details provided.

The filing notifies investors that ClearSign made public communications on August 14, 2025, and attaches a press release and conference call transcript as exhibits. Inclusion of Items 2.02, 7.01 and 9.01 signals that the company intended to disclose operational results or material information under Regulation FD, but the provided text does not include those results or exhibit content. From an investor-materiality perspective, the filing itself is procedural until the exhibits are reviewed for substantive financial or operational data.

Corporate Governance Expert

TL;DR: Filing appears compliant and properly signed; exhibits must be reviewed to assess material impact.

The 8-K follows standard disclosure formatting and is executed by the CEO, indicating appropriate corporate authorization. Items listed cover operational results disclosure and Regulation FD compliance, but the absence of the actual press release or transcript text in the provided content prevents assessment of governance or disclosure quality. The document is procedurally important but not by itself material to valuation without exhibit content.

false 0001434524 0001434524 2025-08-14 2025-08-14 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

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)		(Commission File Number)		(IRS Employer Identification No.)

8023 E. 63rd Place, Suite 101

Tulsa, Oklahoma 74133

(Address of Principal Executive Offices) (Zip Code)

(918) 236-6461

(Registrant's telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (see General Instruction A.2 below).

¨  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR240.14a-12)

¨  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

¨  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13(e)-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock		CLIR		The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 2.02 Results of Operations and Financial Condition.

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

Item 7.01 Regulation FD Disclosure.

On August 14, 2025, ClearSign Technologies Corporation (the “Company”) issued a press release announcing the results of operations for the quarter ended June 30, 2025 (the “Financial Results”). The press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference in its entirety into this Item 7.01.

Also on August 14, 2025, the Company held a conference call discussing the Financial Results and other business related information. A transcript of this conference call is furnished as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated by reference in its entirety into this Item 7.01.

The information furnished with this Item 7.01, including Exhibits 99.1 and 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

(d) Exhibits.

Exhibit No.		Description
99.1**		Press Release, dated August 14, 2025.
99.2**		Transcript of Conference Call held on August 14, 2025.
104*		Cover Page Interactive Data File (embedded within the Inline XBRL document).

* Filed herewith.

** Furnished herewith.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Current Report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: August 15, 2025

	CLEARSIGN TECHNOLOGIES CORPORATION
	By:	/s/ Colin James Deller
	Name:	Colin James Deller
	Title:	Chief Executive Officer

FAQ

What did ClearSign Technologies (CLIR) disclose in the 8-K filed August 14, 2025?

The company disclosed a press release and a conference call transcript dated August 14, 2025 and listed Items 2.02, 7.01 and 9.01; the filing text provided contains no financial figures.

Does the provided 8-K text include ClearSign's financial results?

No. The provided content lists Item 2.02 but does not include any earnings, revenue, or other financial metrics.

Where can I find the substance of the press release and transcript referenced in the 8-K?

The exhibits are identified as Exhibit 99.1 (press release) and Exhibit 99.2 (conference call transcript); those exhibits must be retrieved from the full 8-K filing on the SEC EDGAR system to review the substantive content.

Who signed the 8-K for ClearSign Technologies?

The filing is signed by Colin James Deller, Chief Executive Officer.

Does this 8-K alone indicate a material event for investors?

Not by itself; the filing notifies the existence of disclosure materials, but the provided text lacks the exhibits or financial details needed to determine materiality.