OTHER INFORMATION
−Removed: Anthony DiGiandomenico Appointment to Nominating and Corporate Governance Committee
−Removed: The information included in this “Part II – Item 5.
−Removed: Other Information” of this Form 10-Q is provided in lieu of filing such information on a Current Report on Form 8-K under “Item 8.01.
−Removed: Other Events.”
−Removed: On November 11, 2025, u pon recommendation from the Nominating and Corporate Governance Committee of the Board (the “Governance Committee”), the Board appointed Anthony DiGiandomenico to the Governance Committee as its chairperson, effective immediately.
−Removed: As a result of such change, the current composition of the Board committees is as follows:
−Removed: Audit and Risk Committee :
−Removed: Todd Silva, Chairperson
−Removed: ● Anthony DiGiandomenico
−Removed: Human Capital and Compensation Committee :
−Removed: Basenese, Chairperson
−Removed: Nominating and Corporate Governance Committee :
−Removed: ● Anthony DiGiandomenico, Chairperson
−Removed: Director or Executive Officer Rule 10b5-1(c) Trading Plans
−Removed: None of the Company’s directors or officers adopted , modified or terminated a Rule 10b-5 trading arrangement or a non-Rule 10b-5 trading arrangement during the fiscal quarter ended September 30, 2025, as such terms are defined under Item 408(a) of Regulation S-K.
+Added: None of the Company’s directors or officers adopted , modified or terminated a Rule 10b-5 trading arrangement or a non-Rule 10b-5 trading arrangement during the fiscal quarter ended March 31, 2026, as such terms are defined under Item 408(a) of Regulation S-K.
Certificate of Incorporation of ClearSign Technologies Corporation, a Delaware corporation (incorporated by reference to Exhibit 3.3 of the Company’s Form 8-K filed with the Securities and Exchange Commission on June 15, 2023).
Certificate of Amendment, as filed with the Secretary of the State of Delaware on June 25, 2024 (incorporated by reference to Exhibit 3.1 of the Company’s Form 8-K filed with the Securities and Exchange Commission on June 26, 2024).
−Removed: Bylaws of ClearSign Technologies Corporation, a Delaware corporation (incorporated by reference to Exhibit 3.4 of the Company’s Form 8-K filed with the Securities and Exchange Commission on June 15, 2023).
+Added: Certificate of Amendment to Certificate of Incorporation, as amended, of ClearSign Technologies Corporation, filed with the Secretary of State of the State of Delaware on March 6, 2026 (incorporated by reference to Exhibit 3.1 of the Company’s Form 8-K filed with the Securities and Exchange Commission on March 10, 2026).
+Added: Amended and Restated Bylaws of ClearSign Technologies Corporation, a Delaware corporation (incorporated by reference to Exhibit 3.1 of the Company’s Form 8-K filed with the Securities and Exchange Commission on November 17, 2025).
Form of Common Warrant (incorporated by reference to Exhibit 4.1 of the Company’s Form 8-K filed with the Securities and Exchange Commission on April 19, 2024) .
17 unchanged sentences
CLEARSIGN TECHNOLOGIES CORPORATION
−Removed: November 14, 2025
/s/ Colin James Deller
2 unchanged sentences
(Principal Executive Officer)
−Removed: November 14, 2025
/s/ Brent Hinds
2 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.