Last 12 months
Inside the activity.
5 purchase rows · 0 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Mar 2026 | 2 | 0 |
| Apr 2026 | 2 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 1 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 30, 2026 Filed Oct 2, 2026 23:00 UTC |
DIGIANDOMENICO ANTHONYDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,766 | $0.00 Strike: $3.55 | $0.00 |
DisclosureSEC source: 0001104659-26-113412 · tm2626853-1_4seq1.xml · derivative · entry 1 DIGIANDOMENICO ANTHONY · CIK 0001083544 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,766 Underlying: Common Stock · 3,766 shares Expires 2036-09-29 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended September 30, 2026, the reporting person was granted non-statutory stock options to purchase 3,766 shares of common stock under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| September 30, 2026 Filed Oct 2, 2026 23:00 UTC |
Saddler Larry MichaelDirector
|
GrantNon-Statutory Stock Options · Derivative | 2,275 | $0.00 Strike: $3.55 | $0.00 |
DisclosureSEC source: 0001104659-26-113413 · tm2626853-2_4seq1.xml · derivative · entry 1 Saddler Larry Michael · CIK 0002147866 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,275 Underlying: Common Stock · 2,275 shares Expires 2036-09-29 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended September 30, 2026, the reporting person was granted non-statutory stock options to purchase 2,275 shares of common stock under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy, pro-rated based on an appointment date of August 6, 2026. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| September 30, 2026 Filed Oct 2, 2026 23:00 UTC |
Silva Gil ToddDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,766 | $0.00 Strike: $3.55 | $0.00 |
DisclosureSEC source: 0001104659-26-113415 · tm2626853-3_4seq1.xml · derivative · entry 2 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,766 Underlying: Common Stock · 3,766 shares Expires 2036-09-29 F3 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended September 30, 2026, the reporting person was granted non-statutory stock options to purchase 3,766 shares of common stock under the Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| September 30, 2026 Filed Oct 2, 2026 23:00 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 4,225 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-113415 · tm2626853-3_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,801 Underlying: Common Stock · 4,225 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-employee director during the quarter ended September 30, 2026, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan (the "Plan") pursuant to the issuer's non-employee director compensation policy, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| September 30, 2026 Filed Oct 2, 2026 23:01 UTC |
Basenese LouDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,766 | $0.00 Strike: $3.55 | $0.00 |
DisclosureSEC source: 0001104659-26-113417 · tm2626853-4_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,766 Underlying: Common Stock · 3,766 shares Expires 2036-09-29 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended September 30, 2026, the reporting person was granted non-statutory stock options to purchase 3,766 shares of common stock under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| July 22, 2026 Filed Jul 24, 2026 20:46 UTC |
PASQUESI JOHN M10% owner
|
PurchaseCommon Stock | 500,000 | $3.54 | $1,770,000.00 |
DisclosureSEC source: 0001227099-26-000005 · primary_doc.xml · nonDerivative · entry 1 PASQUESI JOHN M · CIK 0001227099 · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · By Otter Capital LLC Disclosed balance after: 1,343,477 F1 · balance_after: The Issuer effected a reverse stock split of its outstanding common stock at a ratio of 1-for-10, effective as of 12:01 a.m., Eastern Time, on March 16, 2026. F2 · ownership.nature: The reporting person is the managing member of Otter Capital LLC. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 23:00 UTC |
DIGIANDOMENICO ANTHONYDirector
|
GrantNon-Statutory Stock Options · Derivative | 4,595 | $0.00 Strike: $3.67 | $0.00 |
DisclosureSEC source: 0001104659-26-080466 · tm2619589-1_4seq1.xml · derivative · entry 1 DIGIANDOMENICO ANTHONY · CIK 0001083544 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,595 Underlying: Common Stock · 4,595 shares Expires 2036-06-29 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended June 30, 2026, the reporting person was granted non-statutory stock options to purchase 4,595 shares of common stock under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 23:01 UTC |
Silva Gil ToddDirector
|
GrantNon-Statutory Stock Options · Derivative | 4,595 | $0.00 Strike: $3.67 | $0.00 |
DisclosureSEC source: 0001104659-26-080468 · tm2619589-2_4seq1.xml · derivative · entry 2 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,595 Underlying: Common Stock · 4,595 shares Expires 2036-06-29 F3 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended June 30, 2026, the reporting person was granted non-statutory stock options to purchase 4,595 shares of common stock under the Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 23:01 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 4,087 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-080468 · tm2619589-2_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,576 Underlying: Common Stock · 4,087 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-employee director during the quarter ended June 30, 2026, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan (the "Plan") pursuant to the issuer's non-employee director compensation policy, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 23:01 UTC |
Basenese LouDirector
|
GrantNon-Statutory Stock Options · Derivative | 4,595 | $0.00 Strike: $3.67 | $0.00 |
DisclosureSEC source: 0001104659-26-080470 · tm2619589-3_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,595 Underlying: Common Stock · 4,595 shares Expires 2036-06-29 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended June 30, 2026, the reporting person was granted non-statutory stock options to purchase 4,595 shares of common stock under the ClearSign Technologies Corporation Amended and Restated 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| April 23, 2026 Filed Apr 28, 2026 00:00 UTC |
Silva Gil ToddDirector
|
PurchaseCommon Stock | 1,000 | $5.25 | $5,250.00 |
DisclosureSEC source: 0001104659-26-049607 · tm2612853-1_4seq1.xml · nonDerivative · entry 2 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,000 F1 · kind: Represents the reporting person's two separate, open-market purchases of 1,000 shares of common stock of the issuer on April 23, 2026, at a price of $5.319 and $5.25 per share, respectively. Read SEC document |
| April 23, 2026 Filed Apr 28, 2026 00:00 UTC |
Silva Gil ToddDirector
|
PurchaseCommon Stock | 1,000 | $5.32 | $5,319.00 |
DisclosureSEC source: 0001104659-26-049607 · tm2612853-1_4seq1.xml · nonDerivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,000 F1 · kind: Represents the reporting person's two separate, open-market purchases of 1,000 shares of common stock of the issuer on April 23, 2026, at a price of $5.319 and $5.25 per share, respectively. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 23:00 UTC |
DIGIANDOMENICO ANTHONYDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,024 | $0.00 Strike: $4.36 | $0.00 |
DisclosureSEC source: 0001104659-26-039309 · tm2610943-1_4seq1.xml · derivative · entry 1 DIGIANDOMENICO ANTHONY · CIK 0001083544 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,024 Underlying: Common Stock · 3,024 shares Expires 2036-03-31 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended March 31, 2026, the reporting person was granted non-statutory stock options to purchase 3,024 shares of common stock under the ClearSign Technologies Corporation 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 23:01 UTC |
Silva Gil ToddDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,024 | $0.00 Strike: $4.36 | $0.00 |
DisclosureSEC source: 0001104659-26-039310 · tm2610943-2_4seq1.xml · derivative · entry 2 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,024 Underlying: Common Stock · 3,024 shares Expires 2036-03-31 F3 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended March 31, 2026, the reporting person was granted non-statutory stock options to purchase 3,024 shares of common stock under the Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 23:01 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 3,440 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-039310 · tm2610943-2_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 123,909 Underlying: Common Stock · 3,440 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-employee director during the quarter ended March 31, 2026, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation 2021 Equity Incentive Plan (the "Plan") pursuant to the issuer's non-employee director compensation policy, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 23:02 UTC |
Basenese LouDirector
|
GrantNon-Statutory Stock Options · Derivative | 3,024 | $0.00 Strike: $4.36 | $0.00 |
DisclosureSEC source: 0001104659-26-039311 · tm2610943-3_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,024 Underlying: Common Stock · 3,024 shares Expires 2036-03-31 F1 · derivative.exercise_date: As compensation for services as a non-employee director during the quarter ended March 31, 2026, the reporting person was granted non-statutory stock options to purchase 3,024 shares of common stock under the ClearSign Technologies Corporation 2021 Equity Incentive Plan pursuant to the issuer's non-employee director compensation policy. These non-statutory stock options were immediately vested and exercisable on the grant date. Read SEC document |
| March 17, 2026 Filed Mar 19, 2026 23:30 UTC |
Silva Gil ToddDirector
|
PurchaseCommon Stock | 2,000 | $4.20 | $8,400.00 |
DisclosureSEC source: 0001104659-26-032244 · tm269407-1_4seq1.xml · nonDerivative · entry 2 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,000 F1 · kind: Represents the reporting person's open-market purchases of 2,000 shares of common stock of the issuer on March 16, 2026, and 2,000 shares of common stock of the issuer on March 17, 2026, at a price of $4.355 and $4.20 per share, respectively. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 23:30 UTC |
Silva Gil ToddDirector
|
PurchaseCommon Stock | 2,000 | $4.36 | $8,710.00 |
DisclosureSEC source: 0001104659-26-032244 · tm269407-1_4seq1.xml · nonDerivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,000 F1 · kind: Represents the reporting person's open-market purchases of 2,000 shares of common stock of the issuer on March 16, 2026, and 2,000 shares of common stock of the issuer on March 17, 2026, at a price of $4.355 and $4.20 per share, respectively. Read SEC document |
| February 26, 2026 Filed Mar 3, 2026 00:01 UTC |
Deller Colin JamesChief Executive Officer
|
Tax withholdingCommon Stock | 105,022 | $0.56 | $58,980.36 |
DisclosureSEC source: 0001104659-26-022403 · tm267759-2_4seq1.xml · nonDerivative · entry 2 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 276,874 F2 · shares: 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. Read SEC document |
| February 26, 2026 Filed Mar 3, 2026 00:01 UTC |
Deller Colin JamesChief Executive Officer
|
GrantCommon Stock | 210,043 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-022403 · tm267759-2_4seq1.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 381,896 F1 · shares: Represents a one-time bonus grant to 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. Read SEC document |
| February 26, 2026 Filed Mar 3, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
GrantRestricted Stock Unit · Derivative | 47,009 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-022401 · tm267759-1_4seq1.xml · derivative · entry 3 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 47,009 Underlying: Common Stock · 47,009 shares Expires not disclosed F3 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs granted on February 26, 2026, vest in three equal installments commencing on the first anniversary of the grant date. F4 · derivative.expiration_date: The RSUs granted on February 26, 2026, vest in three equal installments commencing on the first anniversary of the grant date. Read SEC document |
| February 26, 2026 Filed Mar 3, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Tax withholdingCommon Stock | 20,761 | $0.56 | $11,659.38 |
DisclosureSEC source: 0001104659-26-022401 · tm267759-1_4seq1.xml · nonDerivative · entry 2 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 170,824 F2 · shares: 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. Read SEC document |
| February 26, 2026 Filed Mar 3, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
GrantCommon Stock | 56,645 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-022401 · tm267759-1_4seq1.xml · nonDerivative · entry 1 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 191,585 F1 · shares: 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. Read SEC document |
| February 26, 2026 Filed Apr 28, 2026 00:01 UTC Amendment |
Deller Colin JamesDirector · Chief Executive Officer
|
Tax withholdingCommon Stock | 3,501 | $5.62 | $19,661.62 |
DisclosureSEC source: 0001104659-26-049608 · tm2612853-2_4aseq1.xml · nonDerivative · entry 2 Deller Colin James · CIK 0001766480 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 31,466 F1 · shares: On March 2, 2026, the reporting person filed a Form 4 reporting the receipt of 210,043 shares of the Issuer's common stock, on a pre-reverse stock split basis, as a one-time bonus grant for services as an executive officer for the year ended December 31, 2025 (the "Original Form 4"). This amendment to the Original Form 4 is being filed to correct (i) the number of shares received in connection with the reporting person's one-time bonus grant, (ii) the number of shares withheld for tax purposes, and (iii) the number of securities beneficially owned following such transactions. The number of shares withheld is based on the closing price of the Issuer's common stock on February 26, 2026, of $5.616, as adjusted for the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · shares: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · price: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F1 · balance_after: On March 2, 2026, the reporting person filed a Form 4 reporting the receipt of 210,043 shares of the Issuer's common stock, on a pre-reverse stock split basis, as a one-time bonus grant for services as an executive officer for the year ended December 31, 2025 (the "Original Form 4"). This amendment to the Original Form 4 is being filed to correct (i) the number of shares received in connection with the reporting person's one-time bonus grant, (ii) the number of shares withheld for tax purposes, and (iii) the number of securities beneficially owned following such transactions. The number of shares withheld is based on the closing price of the Issuer's common stock on February 26, 2026, of $5.616, as adjusted for the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · balance_after: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. Read SEC document |
| February 26, 2026 Filed Apr 28, 2026 00:01 UTC Amendment |
Deller Colin JamesDirector · Chief Executive Officer
|
GrantCommon Stock | 7,001 | $5.62 | $39,317.62 |
DisclosureSEC source: 0001104659-26-049608 · tm2612853-2_4aseq1.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Director · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 34,967 F1 · shares: On March 2, 2026, the reporting person filed a Form 4 reporting the receipt of 210,043 shares of the Issuer's common stock, on a pre-reverse stock split basis, as a one-time bonus grant for services as an executive officer for the year ended December 31, 2025 (the "Original Form 4"). This amendment to the Original Form 4 is being filed to correct (i) the number of shares received in connection with the reporting person's one-time bonus grant, (ii) the number of shares withheld for tax purposes, and (iii) the number of securities beneficially owned following such transactions. The number of shares withheld is based on the closing price of the Issuer's common stock on February 26, 2026, of $5.616, as adjusted for the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · shares: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · price: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F1 · balance_after: On March 2, 2026, the reporting person filed a Form 4 reporting the receipt of 210,043 shares of the Issuer's common stock, on a pre-reverse stock split basis, as a one-time bonus grant for services as an executive officer for the year ended December 31, 2025 (the "Original Form 4"). This amendment to the Original Form 4 is being filed to correct (i) the number of shares received in connection with the reporting person's one-time bonus grant, (ii) the number of shares withheld for tax purposes, and (iii) the number of securities beneficially owned following such transactions. The number of shares withheld is based on the closing price of the Issuer's common stock on February 26, 2026, of $5.616, as adjusted for the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. F2 · balance_after: Amounts and price per share figures have been adjusted to reflect the 1-for-10 reverse stock split effected by the Issuer on March 16, 2026. Read SEC document |
| February 22, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionRestricted Stock Unit · Derivative | 7,547 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · derivative · entry 6 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,547 Underlying: Common Stock · 7,547 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F7 · derivative.exercise_price: On February 22, 2024, the reporting person was granted 22,641 RSUs as a one-time bonus for services as an executive officer for the year ended December 31, 2023, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F8 · derivative.exercise_date: The RSUs granted on February 22, 2024, vest in three equal installments that commenced on February 22, 2025. F8 · derivative.expiration_date: The RSUs granted on February 22, 2024, vest in three equal installments that commenced on February 22, 2025. Read SEC document |
| February 22, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Tax withholdingCommon Stock | 2,765 | $0.59 | $1,644.90 |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · nonDerivative · entry 4 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 134,940 F4 · shares: Represents the payment of the reporting person's tax liability by withholding shares in connection with the vesting of 7,547 RSUs on February 22, 2026, and calculated based on the closing price of the Company's common stock, as reported on the Nasdaq Stock Market, on February 20, 2026, of $0.5949 (as February 22, 2026 fell on a weekend). Read SEC document |
| February 22, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionCommon Stock | 7,547 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · nonDerivative · entry 3 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 137,705 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · shares: Reflects the vesting of 7,547 RSUs out of the 22,641 RSUs granted to the reporting person on February 22, 2024, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. F3 · price: Reflects the vesting of 7,547 RSUs out of the 22,641 RSUs granted to the reporting person on February 22, 2024, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. Read SEC document |
| February 20, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionRestricted Stock Unit · Derivative | 9,315 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · derivative · entry 5 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,631 Underlying: Common Stock · 9,315 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F5 · derivative.exercise_price: On February 20, 2025, the reporting person was granted 27,946 RSUs as a one-time bonus for services as an executive officer for the year ended December 31, 2024, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F6 · derivative.exercise_date: The RSUs granted on February 20, 2025, vest in three equal installments that commenced on February 20, 2026. F6 · derivative.expiration_date: The RSUs granted on February 20, 2025, vest in three equal installments that commenced on February 20, 2026. Read SEC document |
| February 20, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Tax withholdingCommon Stock | 3,413 | $0.59 | $2,030.39 |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · nonDerivative · entry 2 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 130,158 F2 · shares: Represents the payment of the reporting person's tax liability by withholding shares in connection with the vesting of 9,315 RSUs on February 20, 2026, and calculated based on the closing price of the Company's common stock, as reported on the Nasdaq Stock Market, on February 20, 2026, of $0.5949. Read SEC document |
| February 20, 2026 Filed Feb 25, 2026 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionCommon Stock | 9,315 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-26-019278 · tm267197-1_4seq1.xml · nonDerivative · entry 1 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 133,571 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: Reflects the vesting of 9,315 restricted stock units ("RSUs") out of the 27,946 RSUs granted to the reporting person on February 20, 2025, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. F1 · price: Reflects the vesting of 9,315 restricted stock units ("RSUs") out of the 27,946 RSUs granted to the reporting person on February 20, 2025, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. Read SEC document |
| February 02, 2026 Filed Feb 4, 2026 23:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionRestricted Stock Unit · Derivative | 10,127 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-010395 · tm265243-1_4seq1.xml · derivative · entry 3 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,127 Underlying: Common Stock · 10,127 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: On February 2, 2023, the reporting person was granted 30,380 RSUs as a one-time bonus for services as an executive officer for the year ended December 31, 2022, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F4 · derivative.exercise_date: The RSUs granted on February 2, 2023, vest in three equal installments that commenced on February 2, 2024. F4 · derivative.expiration_date: The RSUs granted on February 2, 2023, vest in three equal installments that commenced on February 2, 2024. Read SEC document |
| February 02, 2026 Filed Feb 4, 2026 23:00 UTC |
Hinds BrentChief Financial Officer
|
Tax withholdingCommon Stock | 3,711 | $0.60 | $2,223.26 |
DisclosureSEC source: 0001104659-26-010395 · tm265243-1_4seq1.xml · nonDerivative · entry 2 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 124,256 F2 · shares: Represents the payment of the reporting person's tax liability by withholding shares in connection with the vesting of 10,127 RSUs on February 2, 2026, and calculated based on the closing price of the Company's common stock, as reported on the Nasdaq Stock Market, on February 2, 2026, of $0.5991. Read SEC document |
| February 02, 2026 Filed Feb 4, 2026 23:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionCommon Stock | 10,127 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-26-010395 · tm265243-1_4seq1.xml · nonDerivative · entry 1 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 127,967 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: Reflects the vesting of 10,127 restricted stock units ("RSUs") out of the 30,380 RSUs granted to the reporting person on February 2, 2023, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. F1 · price: Reflects the vesting of 10,127 restricted stock units ("RSUs") out of the 30,380 RSUs granted to the reporting person on February 2, 2023, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 22:00 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 26,830 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-096763 · tm2527975-1_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 120,469 Underlying: Common Stock · 26,830 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending December 31, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| October 01, 2025 Filed Oct 3, 2025 22:00 UTC |
Basenese LouDirector
|
GrantRestricted Stock Units · Derivative | 24,621 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-096764 · tm2527975-2_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 70,266 Underlying: Common Stock · 24,621 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending December 31, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 22:49 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 32,638 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-065884 · tm2519904-4_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 93,639 Underlying: Common Stock · 32,638 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending September 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 18:51 UTC |
Maley David MDirector
|
GrantRestricted Stock Units · Derivative | 9,452 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-065885 · tm2519904-5_4seq1.xml · derivative · entry 1 Maley David M · CIK 0002021245 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 105,443 Underlying: Common Stock · 9,452 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending September 30, 2025, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation 2021 Equity Incentive Plan, pro-rated for the period beginning on July 1, 2025 and ending on July 25, 2025, the reporting person's last day of service as a non-executive director, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 18:47 UTC |
Schrecker Judith SDirector
|
GrantRestricted Stock Units · Derivative | 46,296 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-065882 · tm2519904-2_4seq1.xml · derivative · entry 1 Schrecker Judith S · CIK 0001850679 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 431,957 Underlying: Common Stock · 46,296 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending September 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 22:45 UTC |
Basenese LouDirector
|
GrantRestricted Stock Units · Derivative | 34,722 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-065881 · tm2519904-1_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 45,645 Underlying: Common Stock · 34,722 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending September 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| July 01, 2025 Filed Jul 3, 2025 22:48 UTC |
de Lacy CatharineDirector
|
GrantRestricted Stock Units · Derivative | 32,175 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-065883 · tm2519904-3_4seq1.xml · derivative · entry 1 de Lacy Catharine · CIK 0001966673 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 218,957 Underlying: Common Stock · 32,175 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending September 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| May 22, 2025 Filed May 27, 2025 23:06 UTC |
Basenese LouDirector
|
GrantRestricted Stock Units · Derivative | 10,923 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-053133 · tm2516240-3_4seq1.xml · derivative · entry 1 Basenese Lou · CIK 0001809482 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,923 Underlying: Common Stock · 10,923 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending June 30, 2025, on May 22, 2025, the reporting person was granted restricted stock units ("RSUs") under the ClearSign Technologies Corporation 2021 Equity Incentive Plan, pro-rated based on an appointment date of May 22, 2025, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| April 01, 2025 Filed Apr 3, 2025 23:00 UTC |
Silva Gil ToddDirector
|
GrantRestricted Stock Units · Derivative | 19,369 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-031794 · tm2511431-2_4seq1.xml · derivative · entry 1 Silva Gil Todd · CIK 0002028266 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,001 Underlying: Common Stock · 19,369 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending June 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| April 01, 2025 Filed Apr 3, 2025 19:00 UTC |
Maley David MDirector
|
GrantRestricted Stock Units · Derivative | 23,728 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-031793 · tm2511431-1_4seq1.xml · derivative · entry 1 Maley David M · CIK 0002021245 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 95,991 Underlying: Common Stock · 23,728 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending June 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| April 01, 2025 Filed Apr 3, 2025 19:01 UTC |
Schrecker Judith SDirector
|
GrantRestricted Stock Units · Derivative | 33,735 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-031795 · tm2511431-3_4seq1.xml · derivative · entry 1 Schrecker Judith S · CIK 0001850679 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 385,661 Underlying: Common Stock · 33,735 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending June 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| April 01, 2025 Filed Apr 3, 2025 23:01 UTC |
de Lacy CatharineDirector
|
GrantRestricted Stock Units · Derivative | 24,857 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-031797 · tm2511431-4_4seq1.xml · derivative · entry 1 de Lacy Catharine · CIK 0001966673 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 186,782 Underlying: Common Stock · 24,857 shares Expires not disclosed F1 · derivative.exercise_price: As compensation for services as a non-executive director during the quarter ending June 30, 2025, 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. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| February 24, 2025 Filed Feb 26, 2025 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionRestricted Stock Unit · Derivative | 7,547 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-017042 · tm257605-1_4seq1.xml · derivative · entry 3 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,094 Underlying: Common Stock · 7,547 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: On February 22, 2024, the reporting person was granted a one-time bonus of 22,641 RSUs, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F4 · derivative.exercise_date: The RSUs granted on February 22, 2024, vest in three equal annual installments that commenced on February 24, 2025. F4 · derivative.expiration_date: The RSUs granted on February 22, 2024, vest in three equal annual installments that commenced on February 24, 2025. Read SEC document |
| February 24, 2025 Filed Feb 26, 2025 00:00 UTC |
Hinds BrentChief Financial Officer
|
Tax withholdingCommon Stock | 2,636 | $0.80 | $2,107.22 |
DisclosureSEC source: 0001104659-25-017042 · tm257605-1_4seq1.xml · nonDerivative · entry 2 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 117,840 F2 · shares: Represents the payment of the reporting person's tax liability by withholding shares in connection with the vesting of 7,547 RSUs on February 24, 2025, and calculated based on the closing price of the Company's common stock, as reported on Nasdaq Stock Market, on February 24, 2025, of $0.7994. Read SEC document |
| February 24, 2025 Filed Feb 26, 2025 00:00 UTC |
Hinds BrentChief Financial Officer
|
Exercise / conversionCommon Stock | 7,547 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001104659-25-017042 · tm257605-1_4seq1.xml · nonDerivative · entry 1 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 120,476 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: Reflects the vesting of 7,547 restricted stock units ("RSUs") out of the 22,641 RSUs granted to the reporting person on February 22, 2024, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. F1 · price: Reflects the vesting of 7,547 restricted stock units ("RSUs") out of the 22,641 RSUs granted to the reporting person on February 22, 2024, into an equal number of shares of the Company's common stock, without the payment of any consideration, pursuant to the Company's 2021 Equity Incentive Plan. Read SEC document |
| February 20, 2025 Filed Feb 25, 2025 01:00 UTC |
Hinds BrentChief Financial Officer
|
GrantRestricted Stock Unit · Derivative | 27,946 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-016631 · tm257462-2_4seq1.xml · derivative · entry 3 Hinds Brent · CIK 0001888082 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,946 Underlying: Common Stock · 27,946 shares Expires not disclosed F3 · derivative.exercise_price: 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, 2024, and each RSU represents a right to receive one share of common stock or the cash equivalent thereof. F4 · derivative.exercise_date: The RSUs granted on February 20, 2025, vest in three equal installments commencing on the first anniversary of the grant date. F4 · derivative.expiration_date: The RSUs granted on February 20, 2025, vest in three equal installments commencing on the first anniversary of the grant date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.