Susanne Meline - 03 Jan 2023 Form 4 Insider Report for ClearSign Technologies Corp (CLIR)

Footnote F1

As compensation for services as a non-executive director during the quarter ending March 31, 2023, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F2

The RSUs will vest upon the first to occur of: (1) a Change in Control (as defined in the applicable RSU award agreement), (2) the reporting person's Disability (as defined in the applicable RSU award agreement); (3) the reporting peron's death; or (4) the reporting person's separation from service.

Footnote F3

As compensation for services as a non-executive director during the quarter ended December 31, 2022, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F4

As compensation for services as a non-executive director during the quarter ended September 30, 2022, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F5

As compensation for services as a non-executive director during the quarter ended June 30, 2022, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F6

As compensation for services as a non-executive director during the quarter ended March 31, 2022, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F7

As compensation for services as a non-executive director during the quarter ended December 31, 2021, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F8

As compensation for services as a non-executive director during the quarter ended September 30, 2021, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F9

As compensation for services as a non-executive director during the quarter ended June 30, 2021, the reporting person was granted RSUs under the ClearSign Technologies Corporation 2021 Equity Incentive Plan and each RSU represents a right to receive one share of common stock or the cash equivalent thereof.

Footnote F10

The right to exercise the option and purchase the option shares vested in equal increments as follows: the right to purchase 22,750 shares vested on May 9, 2019 and the right to purchase the remaining 68,250 shares vested in equal increments on the last day of each calendar quarter during 2019.