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The reporting person is the trustee and a beneficiary of the Bell Family Trust and has voting and investment control over the securities."}],"balance_after":106911,"source":{"system":"sec-edgar","filing":"0001144204-17-045063","document":"v473977_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417045063/v473977_form4.xml","form_type":"4"}},{"id":4401235,"issuer":{"id":6940,"kind":"organization","name":"Ideal Power Inc."},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock Warrants","published_at":"2017-03-06T16:30:47.000Z","date":"2017-03-03","kind":"purchase","acquired":true,"shares":78800,"price":2.535,"value":199758.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reported securities are included within the securities purchased by the reporting person for $2.535 per share of common stock together with a warrant to purchase one share of common stock."}],"balance_after":78800,"derivative":{"exercise_price":2.41,"exercise_date":"2017-09-04","expiration_date":"2020-03-03","underlying":"Common Stock","underlying_shares":78800},"source":{"system":"sec-edgar","filing":"0001144204-17-012976","document":"v461160_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417012976/v461160_4.xml","form_type":"4"}},{"id":4401234,"issuer":{"id":6940,"kind":"organization","name":"Ideal Power Inc."},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-03-06T16:30:47.000Z","date":"2017-03-03","kind":"purchase","acquired":true,"shares":78800,"price":2.535,"value":199758.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reported securities are included within the securities purchased by the reporting person for $2.535 per share of common stock together with a warrant to purchase one share of common stock."}],"balance_after":132661,"source":{"system":"sec-edgar","filing":"0001144204-17-012976","document":"v461160_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417012976/v461160_4.xml","form_type":"4"}},{"id":4450818,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2017-02-14T17:52:25.000Z","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 torepurchase 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 torepurchase 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":243472,"source":{"system":"sec-edgar","filing":"0001144204-17-009076","document":"v459429_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417009076/v459429_4.xml","form_type":"4"}},{"id":4480888,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Warrant to Purchase Common Stock","published_at":"2017-01-26T16:26:45.000Z","date":"2017-01-25","kind":"other","acquired":true,"shares":35336,"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":35336,"derivative":{"exercise_price":4,"exercise_date":"2017-01-25","expiration_date":"2019-01-25","underlying":"Common Stock","underlying_shares":35336},"source":{"system":"sec-edgar","filing":"0001144204-17-004022","document":"v457556_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417004022/v457556_4.xml","form_type":"4"}},{"id":4480887,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Subscription Rights (Right to Purchase)","published_at":"2017-01-26T16:26:45.000Z","date":"2016-12-27","kind":"other","acquired":false,"shares":35336,"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":35336},"source":{"system":"sec-edgar","filing":"0001144204-17-004022","document":"v457556_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417004022/v457556_4.xml","form_type":"4"}},{"id":4480886,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock/CLIR","published_at":"2017-01-26T16:26:45.000Z","date":"2017-01-25","kind":"other","acquired":true,"shares":35336,"price":4,"value":141344.0,"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":215694,"source":{"system":"sec-edgar","filing":"0001144204-17-004022","document":"v457556_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417004022/v457556_4.xml","form_type":"4"}},{"id":4485621,"issuer":{"id":6940,"kind":"organization","name":"Ideal Power Inc."},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Option to Purchase Stock","published_at":"2017-01-20T08:10:03.000Z","date":"2017-01-03","kind":"grant","acquired":true,"shares":27875,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The option was issued from the Ideal Power Inc. (formerly known as Ideal Power Converters, Inc.) Amended & Restated 2013 Equity Incentive Plan, as in existence on the date of grant."},{"field":"security","element":"securityTitle","label":"F2","text":"The grant represents an annual automatic grant of options to each independent member of the Issuer's Board of Directors, which was inadvertently not timely reported."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The right to purchase the common stock vests as follows: the right to purchase 6,968 shares of common stock vests on March 31, 2017; the right to purchase 6,969 shares of common stock vests on June 30, 2017; the right to purchase 6,969 shares of common stock vests on September 30, 2017; and the right to purchase 6,969 shares vests on December 31, 2017."}],"balance_after":27875,"derivative":{"exercise_price":3.15,"expiration_date":"2027-01-03","underlying":"Common Stock","underlying_shares":27875},"source":{"system":"sec-edgar","filing":"0001144204-17-002984","document":"v457135_form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417002984/v457135_form4.xml","form_type":"4"}},{"id":4508687,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-01-03T07:10:59.000Z","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":180358,"source":{"system":"sec-edgar","filing":"0001144204-17-000026","document":"v456041_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420417000026/v456041_4.xml","form_type":"4"}},{"id":4515859,"issuer":{"id":162971,"kind":"organization","name":"CDTI ADVANCED MATERIALS, INC.","symbol":"CDTI"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-12-20T12:30:17.000Z","date":"2016-12-16","kind":"purchase","acquired":true,"shares":250000,"price":2,"value":500000.0,"ownership":{"direct":true},"balance_after":590494,"source":{"system":"sec-edgar","filing":"0001104659-16-162957","document":"a4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000110465916162957/a4.xml","form_type":"4"}},{"id":4572372,"issuer":{"id":7487,"kind":"organization","name":"ClearSign Technologies Corp","symbol":"CLIR"},"owners":[{"id":85954,"kind":"person","name":"BELL LON E","position":1,"cik":"0000941593","reported_name":"BELL LON E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-10-31T20:03:07.000Z","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":176682,"source":{"system":"sec-edgar","filing":"0001144204-16-130651","document":"v451807_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941593/000114420416130651/v451807_4.xml","form_type":"4"}}]}