{"transactions":[{"id":3703843,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2019-01-05T01:07:36.000Z","date":"2018-12-31","kind":"grant","acquired":true,"shares":6756,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's non-executive directors. The reporting person is a non-executive director. As partial compensation for services provided to the Issuer during 2018, each non-executive director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant. The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter. The shares of common stock are issued from the Company's 2011 Equity Incentive Plan."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's non-executive directors. The reporting person is a non-executive director. As partial compensation for services provided to the Issuer during 2018, each non-executive director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant. The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter. The shares of common stock are issued from the Company's 2011 Equity Incentive Plan."}],"balance_after":107935,"source":{"system":"sec-edgar","filing":"0001144204-19-000737","document":"tv510455_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420419000737/tv510455_4.xml","form_type":"4"}},{"id":3801183,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2018-10-02T23:00:20.000Z","date":"2018-09-28","kind":"grant","acquired":true,"shares":6757,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2018, each independent director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant.  The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter.  The shares of common stock are issued from the Company's 2011 Equity Incentive Plan."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2018, each independent director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant.  The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter.  The shares of common stock are issued from the Company's 2011 Equity Incentive Plan."}],"balance_after":101179,"source":{"system":"sec-edgar","filing":"0001144204-18-052150","document":"tv504079_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420418052150/tv504079_4.xml","form_type":"4"}},{"id":3874804,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2018-07-03T19:05:56.000Z","date":"2018-06-29","kind":"grant","acquired":true,"shares":13514,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2018, each independent director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant.  The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter.  The shares of common stock are issued from the Company's 2011 Equity Incentive Plan. Because the grant was approved in the second quarter, the shares of common stock for both the first and second quarter of 2018 were issued on June 29, 2018."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 3, 2018 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2018, each independent director was granted 27,027 shares of common stock having a per share value of $1.85, the closing price of the Issuer's common stock on the date of grant.  The common stock is earned in quarterly increments and is issued on the last business day of each calendar quarter.  The shares of common stock are issued from the Company's 2011 Equity Incentive Plan. Because the grant was approved in the second quarter, the shares of common stock for both the first and second quarter of 2018 were issued on June 29, 2018."}],"balance_after":94422,"source":{"system":"sec-edgar","filing":"0001144204-18-037198","document":"tv497941_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420418037198/tv497941_4.xml","form_type":"4"}},{"id":4448763,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2017-02-14T22:56:14.000Z","date":"2017-02-10","kind":"grant","acquired":true,"shares":27778,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On February 10, 2017, the Issuer's Compensation Committee approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As full compensation for services provided to the Issuer during 2017, each independent director was granted 27,778 shares of common stock, having a per share value of $3.60, the closing price of the Issuer's common stock on the date of grant.  The Company has the right to repurchase the shares at a price of $0.0001 per share upon the termination of the reporting person's services as a director or other circumstances designated in the award agreement.  The repurchase right expires on February 10, 2018. The shares will be issued from the Issuer's 2011 Equity Compensation Plan."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On February 10, 2017, the Issuer's Compensation Committee approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As full compensation for services provided to the Issuer during 2017, each independent director was granted 27,778 shares of common stock, having a per share value of $3.60, the closing price of the Issuer's common stock on the date of grant.  The Company has the right to repurchase the shares at a price of $0.0001 per share upon the termination of the reporting person's services as a director or other circumstances designated in the award agreement.  The repurchase right expires on February 10, 2018. The shares will be issued from the Issuer's 2011 Equity Compensation Plan."}],"balance_after":80908,"source":{"system":"sec-edgar","filing":"0001144204-17-009088","document":"v459443_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420417009088/v459443_4.xml","form_type":"4"}},{"id":4480533,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Warrant to Purchase Common Stock","published_at":"2017-01-26T21:29:33.000Z","date":"2017-01-25","kind":"other","acquired":true,"shares":8242,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The common stock and the warrants reported on this Form 4 were acquired pursuant to the exercise of subscription rights previously distributed by the Issuer to all holders of the Issuer's common stock. Each holder received 0.2 subscription rights per share of stock owned, and each right allowed the recipient to purchase one unit, consisting of one share of common stock and one warrant to purchase one share of common stock. The subscription price per unit was $4.00."},{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F2","text":"Each warrant entitles the holder to purchase one share of the Company's common stock at an exercise price of $4.00 from the date of issuance through January 25, 2019."}],"balance_after":8242,"derivative":{"exercise_price":4,"exercise_date":"2017-01-25","expiration_date":"2019-01-25","underlying":"Common Stock","underlying_shares":8242},"source":{"system":"sec-edgar","filing":"0001144204-17-004028","document":"v457563_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420417004028/v457563_4.xml","form_type":"4"}},{"id":4480532,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Subscription Rights (Right to Purchase)","published_at":"2017-01-26T21:29:33.000Z","date":"2016-12-27","kind":"other","acquired":false,"shares":8242,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.underlying","element":"underlyingSecurityTitle","label":"F1","text":"The common stock and the warrants reported on this Form 4 were acquired pursuant to the exercise of subscription rights previously distributed by the Issuer to all holders of the Issuer's common stock. Each holder received 0.2 subscription rights per share of stock owned, and each right allowed the recipient to purchase one unit, consisting of one share of common stock and one warrant to purchase one share of common stock. The subscription price per unit was $4.00."}],"balance_after":0,"derivative":{"exercise_price":4,"exercise_date":"2016-12-27","expiration_date":"2017-01-13","underlying":"See Footnote","underlying_shares":8242},"source":{"system":"sec-edgar","filing":"0001144204-17-004028","document":"v457563_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420417004028/v457563_4.xml","form_type":"4"}},{"id":4480531,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2017-01-26T21:29:33.000Z","date":"2017-01-25","kind":"other","acquired":true,"shares":8242,"price":4,"value":32968.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The common stock and the warrants reported on this Form 4 were acquired pursuant to the exercise of subscription rights previously distributed by the Issuer to all holders of the Issuer's common stock. Each holder received 0.2 subscription rights per share of stock owned, and each right allowed the recipient to purchase one unit, consisting of one share of common stock and one warrant to purchase one share of common stock. The subscription price per unit was $4.00."}],"balance_after":53130,"source":{"system":"sec-edgar","filing":"0001144204-17-004028","document":"v457563_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420417004028/v457563_4.xml","form_type":"4"}},{"id":4507655,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-01-03T12:06:33.000Z","date":"2016-12-31","kind":"grant","acquired":true,"shares":3676,"price":3.4,"value":12498.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 9, 2016 the Issuer's board of directors approved annual compensation for the Issuer's independent directors. The reporting person is an independent director. As partial compensation for services provided to the Issuer during 2016, each independent director was granted 3,676 shares of common stock per quarter, having a per share value of $3.40, the closing price of the Issuer's common stock on the date of grant. The shares of common stock were issued from the Company's 2011 Equity Incentive Plan and held in escrow until the shares are earned. The shares are earned on a quarterly basis and are released to the independent directors on the last day of each fiscal quarter."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 9, 2016 the Issuer's board of directors approved annual compensation for the Issuer's independent directors. The reporting person is an independent director. As partial compensation for services provided to the Issuer during 2016, each independent director was granted 3,676 shares of common stock per quarter, having a per share value of $3.40, the closing price of the Issuer's common stock on the date of grant. The shares of common stock were issued from the Company's 2011 Equity Incentive Plan and held in escrow until the shares are earned. The shares are earned on a quarterly basis and are released to the independent directors on the last day of each fiscal quarter."}],"balance_after":44888,"source":{"system":"sec-edgar","filing":"0001144204-17-000023","document":"v456040_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420417000023/v456040_4.xml","form_type":"4"}},{"id":4571821,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":161270,"kind":"person","name":"ISAACSON SCOTT P","position":1,"cik":"0001547301","reported_name":"ISAACSON SCOTT P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-11-01T00:09:01.000Z","date":"2016-09-30","kind":"grant","acquired":true,"shares":3676,"price":3.4,"value":12498.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On March 9, 2016 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2016, each independent director was granted 3,676 shares of common stock per quarter, having a per share value of $3.40, the closing price of the Issuer's common stock on the date of grant.  The shares of common stock were issued from the Company's 2011 Equity Incentive Plan and held in escrow until the shares are earned.  The shares are earned on a quarterly basis and are released to the independent directors on the last day of each fiscal quarter."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 9, 2016 the Issuer's board of directors approved annual compensation for the Issuer's independent directors.  The reporting person is an independent director.  As partial compensation for services provided to the Issuer during 2016, each independent director was granted 3,676 shares of common stock per quarter, having a per share value of $3.40, the closing price of the Issuer's common stock on the date of grant.  The shares of common stock were issued from the Company's 2011 Equity Incentive Plan and held in escrow until the shares are earned.  The shares are earned on a quarterly basis and are released to the independent directors on the last day of each fiscal quarter."}],"balance_after":41212,"source":{"system":"sec-edgar","filing":"0001144204-16-130653","document":"v451808_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1434524/000114420416130653/v451808_4.xml","form_type":"4"}}]}