0001104659-24-042669.txt : 20240402 0001104659-24-042669.hdr.sgml : 20240402 20240402173421 ACCESSION NUMBER: 0001104659-24-042669 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240401 FILED AS OF DATE: 20240402 DATE AS OF CHANGE: 20240402 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HOFFMAN Robert Thurston Sr CENTRAL INDEX KEY: 0001748409 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35521 FILM NUMBER: 24815860 MAIL ADDRESS: STREET 1: 119 WARREN AVENUE CITY: SPRING LAKE STATE: NJ ZIP: 07762 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: ClearSign Technologies Corp CENTRAL INDEX KEY: 0001434524 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823] ORGANIZATION NAME: 08 Industrial Applications and Services IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 8023 E. 63RD PLACE, SUITE 101 CITY: TULSA STATE: OK ZIP: 74133 BUSINESS PHONE: (918) 236-6461 MAIL ADDRESS: STREET 1: 8023 E. 63RD PLACE, SUITE 101 CITY: TULSA STATE: OK ZIP: 74133 FORMER COMPANY: FORMER CONFORMED NAME: CLEARSIGN COMBUSTION CORP DATE OF NAME CHANGE: 20080507 4 1 tm2410636-2_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2024-04-01 0 0001434524 ClearSign Technologies Corp CLIR 0001748409 HOFFMAN Robert Thurston Sr 8023 E. 63RD PLACE, SUITE 101 TULSA OK 74133 1 0 0 0 0 Restricted Stock Units 2024-04-01 4 A 0 20408 0.00 A Common Stock 20408 224311 D As compensation for services as a non-executive director during the quarter ending June 30, 2024, 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. 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 person's death; or (4) the reporting person's separation from service. /s/ Robert T. Hoffman, Sr. 2024-04-02