Brent Hinds - 26 Feb 2026 Form 4 Insider Report for ClearSign Technologies Corp (CLIR)

Role
Chief Financial Officer
Signature
/s/ Brent Hinds
Issuer symbol
CLIR
Transactions as of
26 Feb 2026
Net transactions value
-$11,659
Form type
4
Filing time
02 Mar 2026, 19:00:16 UTC
Previous filing
24 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hinds Brent Chief Financial Officer 8023 E. 63RD PLACE, SUITE 101, TULSA /s/ Brent Hinds 02 Mar 2026 0001888082

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CLIR Common Stock Award $0 +56,645 +42% $0.000000 191,585 26 Feb 2026 Direct F1
transaction CLIR Common Stock Tax liability $11,659 -20,761 -11% $0.5616 170,824 26 Feb 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CLIR Restricted Stock Unit Award $0 +47,009 $0.000000 47,009 26 Feb 2026 Common Stock 47,009 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents a one-time bonus grant to the reporting person for services as an executive officer for the year ended December 31, 2025, upon achievement of certain performance target metrics approved by the human capital and compensation committee of the board of directors. The number of shares awarded is based on the closing price of the Company's common stock on February 26, 2026, of $0.5616.
F2 Represents the payment of the reporting person's tax liability by withholding shares incident to the receipt of the Company's common stock issued on February 26, 2026, based on the closing price of the Company's common stock on February 26, 2026, of $0.5616.
F3 Represents a one-time bonus restricted stock units ("RSUs") grant to reporting person for services as an executive officer for the year ended December 31, 2025, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.
F4 The RSUs granted on February 26, 2026, vest in three equal installments commencing on the first anniversary of the grant date.