ClearSign Technologies Corp (CLIR) Insider Ownership

Historic Insider Ownership Trends

CLIR's three largest insider shareholders as of March 23, 2026 are Robert Thurston Sr Hoffman (TenPercentOwner, 9.54Mn shares), Colin James Deller (Chief Executive Officer, 276.87K shares), Brent Hinds (Chief Financial Officer, 170.82K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Robert Thurston Sr Hoffman 0 9,539,857 26 Jun, 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
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 Brent Hinds Common Stock D 20,761 $0.56 170,824 D F
26 Feb, 2026 Colin James Deller Common Stock D 105,022 $0.56 276,874 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
01 Jul, 2025 Judith S Schrecker Restricted Stock Units A 46,296 $0.00 431,957 D A
01 Jul, 2025 David M Maley Restricted Stock Units A 9,452 $0.00 105,443 D A
01 Jul, 2025 Lacy Catharine De Restricted Stock Units A 32,175 $0.00 218,957 D A