Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ClearSign Technologies CorpCLIR · Entity 7487 | Director · Chief Executive Officer | February 26, 2026 | April 28, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
ClearSign Technologies Corp
Report date February 26, 2026 · Filed April 28, 2026 · Amendment
Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 31,466 |
Last balance in matching sequence
After 2026-02-26 transaction · row 2
Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rowsRow 1 · 2026-02-26 · Grant · Acquired 7,001 · Balance 34,967 F1: 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: 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. Row 2 · 2026-02-26 · Tax withholding · Disposed 3,501 · Balance 31,466 F1: 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: 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. |
Filing footnotes · ownership attribution and instrument terms
F1: 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: 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.
Transaction history
JSON APIPurchases/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 | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| February 26, 2026 Filed Mar 3, 2026 00:01 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | 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 | ClearSign Technologies Corp CLIR · Entity 7487 | 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 Apr 28, 2026 00:01 UTC Amendment | ClearSign Technologies Corp CLIR · Entity 7487 | 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 | ClearSign Technologies Corp CLIR · Entity 7487 | 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 20, 2025 Filed Feb 25, 2025 01:00 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | Tax withholdingCommon Stock | 49,846 | $0.86 | $42,807.74 |
DisclosureSEC source: 0001104659-25-016630 · tm257462-1_4seq1.xml · nonDerivative · entry 2 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 171,853 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 20, 2025, based on the closing price of the Company's common stock on February 20, 2025, of $0.8588. Read SEC document |
| February 20, 2025 Filed Feb 25, 2025 01:00 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | GrantCommon Stock | 100,393 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-016630 · tm257462-1_4seq1.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 221,699 F1 · shares: Represents a one-time bonus grant to reporting person for services as an executive officer for the year ended December 31, 2024. The number of shares awarded is based on the closing price of the Company's common stock on February 20, 2025, of $0.8588. Read SEC document |
| February 22, 2024 Filed Feb 26, 2024 22:01 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | Tax withholdingCommon Stock | 65,102 | $1.06 | $69,008.12 |
DisclosureSEC source: 0001104659-24-027573 · tm247292-1_4seq1.xml · nonDerivative · entry 2 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 121,306 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 22, 2024 based on the closing price of the Company's common stock on February 22, 2024 of $1.06. Read SEC document |
| February 22, 2024 Filed Feb 26, 2024 22:01 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | GrantCommon Stock | 131,121 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-24-027573 · tm247292-1_4seq1.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 186,408 F1 · shares: Represents a one-time bonus grant to reporting person for services as an executive officer for the year ended December 31, 2023. The number of shares awarded is based on the closing price of the Company's common stock on February 22, 2024 of $1.06. Read SEC document |
| February 02, 2023 Filed Feb 15, 2023 01:01 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | GrantCommon Stock | 109,806 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-23-022088 · tm236822-1_4.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 109,806 F1 · shares: Represents a one-time bonus grant to reporting person for services as an executive officer for the year ended December 31, 2022. The number of shares awarded are based on the closing price of the Company's common stock on February 2, 2023 of $0.79. Read SEC document |
| February 02, 2023 Filed Feb 26, 2024 22:00 UTC Amendment | ClearSign Technologies Corp CLIR · Entity 7487 | Tax withholdingCommon Stock | 54,519 | $0.79 | $43,070.01 |
DisclosureSEC source: 0001104659-24-027566 · tm247292-2_4aseq1.xml · nonDerivative · entry 1 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 55,287 F1 · shares: On February 14, 2023, the reporting person filed a Form 4 reporting the receipt of 109,806 shares of the Company's common stock as a one-time bonus for services as an executive officer for the year ended December 31, 2022 (the "Original Form 4"). This amendment is being filed to report the withholding of shares as payment of tax liability incident to the February 2, 2023 receipt of the Company's common stock and to correct the number of securities beneficially owned following the transaction as reported in Column 5 of the Original Form 4. The number of shares withheld is based on the closing price of the Company's common stock on February 2, 2023 of $0.79. Read SEC document |
| January 10, 2021 Filed Jan 12, 2021 22:00 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | GrantOption to Purchase Coomon Stock · Derivative | 590,000 | $0.00 Strike: $3.37 | $0.00 |
DisclosureSEC source: 0001104659-21-003501 · tm212905-1_4seq1.xml · derivative · entry 1 Deller Colin James · CIK 0001766480 · Director · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 590,000 Underlying: Common Stock · 590,000 shares Expires 2031-01-09 F1 · derivative.exercise_date: 80,000 shares underlying the option vested immediately upon issuance. The right to purchase the remaining option shares vests upon the achievement of certain performance goals. As each of these various performance goals is met, a portion of the award will vest and will be available for purchase from that date. Read SEC document |
| February 12, 2020 Filed Feb 14, 2020 21:39 UTC | ClearSign Technologies Corp CLIR · Entity 7487 | GrantOption to Purchase Common Stock · Derivative | 182,730 | $0.00 Strike: $0.94 | $0.00 |
DisclosureSEC source: 0001104659-20-021937 · tm208054-1_4.xml · derivative · entry 1 Deller Colin James · CIK 0001766480 · Chief Executive Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 782,730 Underlying: Common Stock · 182,730 shares Expires 2030-01-01 F1 · derivative.exercise_date: The right to purchase the option shares vested on the date of grant. 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.