ClearSign Technologies's top three insider shareholders as of April 28, 2026 are Robert Thurston Sr Hoffman (TenPercentOwner, 9.54Mn shares), Robert Thurston Sr Hoffman (Director, 6.19Mn shares), Colin James Deller (Chief Executive Officer, 276.87K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert Thurston Sr Hoffman | - | 0 | 9,539,857 | 26 Jun, 2024 |
| Robert Thurston Sr Hoffman | - | 0 | 6,189,857 | 02 Feb, 2024 |
| Colin James Deller | Chief Executive Officer | 276,874 | 0 | 02 Mar, 2026 |
| Brent Hinds | Chief Financial Officer | 170,824 | 0 | 02 Mar, 2026 |
| Bruce Alan Pate | - | 0 | 150,000 | 16 Jun, 2022 |
| Gil Todd Silva | - | 4,000 | 0 | 19 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Lou Basenese | Non-Statutory Stock Options | A | 3,024 | $0.00 | 3,024 | D | A |
| 31 Mar, 2026 | Gil Todd Silva | Restricted Stock Units | A | 3,440 | $0.00 | 123,909 | D | A |
| 31 Mar, 2026 | Gil Todd Silva | Non-Statutory Stock Options | A | 3,024 | $0.00 | 3,024 | D | A |
| 16 Mar, 2026 | Gil Todd Silva | Common Stock | A | 2,000 | $4.36 | 2,000 | D | P |
| 17 Mar, 2026 | Gil Todd Silva | Common Stock | A | 2,000 | $4.20 | 4,000 | D | P |
| 26 Feb, 2026 | Brent Hinds | Common Stock | A | 56,645 | $0.00 | 191,585 | D | A |
| 26 Feb, 2026 | Colin James Deller | Common Stock | A | 210,043 | $0.00 | 381,896 | D | A |
| 26 Feb, 2026 | Colin James Deller | Common Stock | D | 105,022 | $0.56 | 276,874 | D | F |
| 26 Feb, 2026 | Brent Hinds | Common Stock | D | 20,761 | $0.56 | 170,824 | D | F |
| 26 Feb, 2026 | Brent Hinds | Restricted Stock Unit | A | 47,009 | $0.00 | 47,009 | D | A |
| 20 Feb, 2026 | Brent Hinds | Common Stock | A | 9,315 | - | 133,571 | D | M |
| 20 Feb, 2026 | Brent Hinds | Common Stock | D | 3,413 | $0.59 | 130,158 | D | F |
| 22 Feb, 2026 | Brent Hinds | Common Stock | A | 7,547 | - | 137,705 | D | M |
| 22 Feb, 2026 | Brent Hinds | Common Stock | D | 2,765 | $0.59 | 134,940 | D | F |
| 20 Feb, 2026 | Brent Hinds | Restricted Stock Unit | D | 9,315 | $0.00 | 18,631 | D | M |
| 22 Feb, 2026 | Brent Hinds | Restricted Stock Unit | D | 7,547 | $0.00 | 7,547 | D | M |
| 02 Feb, 2026 | Brent Hinds | Common Stock | A | 10,127 | - | 127,967 | D | M |
| 02 Feb, 2026 | Brent Hinds | Common Stock | D | 3,711 | $0.60 | 124,256 | D | F |
| 02 Feb, 2026 | Brent Hinds | Restricted Stock Unit | D | 10,127 | $0.00 | 10,127 | D | M |
| 01 Oct, 2025 | Gil Todd Silva | Restricted Stock Units | A | 26,830 | $0.00 | 120,469 | D | A |