Nasdaq · CIK 0001434524
CLIR ClearSign Technologies Corp
Insider trading from SEC Form 4. Last filing 11 d ago. Close $3.21 on Oct 9, 2026, +3% from the 52-week low and -68% from the high.
ClearSign Technologies Corp (CLIR) has 33 SEC Form 4 filings on file from 9 insiders, the latest filed on Oct 2, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
2 open-market trades have been scored at CLIR. The newest: Gil Todd Silva (director) bought $11k of stock on Apr 23, 2026, filed Apr 27, 2026, scored 38 (weak). The largest of the 2 shown: Gil Todd Silva (director) bought $17k on Mar 16, 2026, scored 23 (weak).
CLIR closed at $3.21 on Oct 9, 2026, 3% above its 52-week low and 68% below its 52-week high.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at ClearSign Technologies Corp, scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 38Weak | Gil Todd Silva director buy | $11k 2,000 shares | +50% | +49% from low-51% from high | |
| 23Weak | Gil Todd Silva director buy | $17k 4,000 shares | - | - |
Transactions
The newest 50 of 57 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | Larry Michael Saddler director | AGrant or award Non-Statutory Stock Optionsderivative | +2,275 | $0.00 | $0 | 2,275 | 11 d ago |
| Sep 30, 2026 | Anthony Digiandomenico director | AGrant or award Non-Statutory Stock Optionsderivative | +3,766 | $0.00 | $0 | 3,766 | 11 d ago |
| Sep 30, 2026 | Gil Todd Silva director | AGrant or award Restricted Stock Unitsderivative | +4,225 | $0.00 | $0 | 23,801 | 11 d ago |
| Sep 30, 2026 | Lou Basenese director | AGrant or award Non-Statutory Stock Optionsderivative | +3,766 | $0.00 | $0 | 3,766 | 11 d ago |
| Sep 30, 2026 | Gil Todd Silva director | AGrant or award Non-Statutory Stock Optionsderivative | +3,766 | $0.00 | $0 | 3,766 | 11 d ago |
| Apr 23, 2026 | Gil Todd Silva director | POpen-market purchase Common Stock | +1,000 | $5.32 | $5,319 | 5,000 | Apr 27, 2026 |
| Apr 23, 2026 | Gil Todd Silva director | POpen-market purchase Common Stock | +1,000 | $5.25 | $5,250 | 6,000 | Apr 27, 2026 |
| Mar 31, 2026 | Anthony Digiandomenico director | AGrant or award Non-Statutory Stock Optionsderivative | +3,024 | $0.00 | $0 | 3,024 | Apr 2, 2026 |
| Mar 31, 2026 | Gil Todd Silva director | AGrant or award Restricted Stock Unitsderivative | +3,440 | $0.00 | $0 | 123,909 | Apr 2, 2026 |
| Mar 31, 2026 | Lou Basenese director | AGrant or award Non-Statutory Stock Optionsderivative | +3,024 | $0.00 | $0 | 3,024 | Apr 2, 2026 |
| Mar 31, 2026 | Gil Todd Silva director | AGrant or award Non-Statutory Stock Optionsderivative | +3,024 | $0.00 | $0 | 3,024 | Apr 2, 2026 |
| Mar 16, 2026 | Gil Todd Silva director | POpen-market purchase Common Stock | +2,000 | $4.36 | $8,710 | 2,000 | Mar 19, 2026 |
| Mar 17, 2026 | Gil Todd Silva director | POpen-market purchase Common Stock | +2,000 | $4.20 | $8,400 | 4,000 | Mar 19, 2026 |
| Feb 26, 2026 | Colin James Deller Chief Executive Officer | AGrant or award Common Stock | +210,043 | $0.00 | $0 | 381,896 | Mar 2, 2026 |
| Feb 26, 2026 | Brent Hinds Chief Financial Officer | AGrant or award Common Stock | +56,645 | $0.00 | $0 | 191,585 | Mar 2, 2026 |
| Feb 26, 2026 | Colin James Deller Chief Executive Officer | FTax withholding Common Stock | -105,022 | $0.56 | $59k | 276,874 | Mar 2, 2026 |
| Feb 26, 2026 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -20,761 | $0.56 | $12k | 170,824 | Mar 2, 2026 |
| Feb 26, 2026 | Brent Hinds Chief Financial Officer | AGrant or award Restricted Stock Unitderivative | +47,009 | $0.00 | $0 | 47,009 | Mar 2, 2026 |
| Feb 20, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +9,315 | - | - | 133,571 | Feb 24, 2026 |
| Feb 20, 2026 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -3,413 | $0.59 | $2,030 | 130,158 | Feb 24, 2026 |
| Feb 22, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +7,547 | - | - | 137,705 | Feb 24, 2026 |
| Feb 22, 2026 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -2,765 | $0.59 | $1,645 | 134,940 | Feb 24, 2026 |
| Feb 20, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Restricted Stock Unitderivative | -9,315 | $0.00 | $0 | 18,631 | Feb 24, 2026 |
| Feb 22, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Restricted Stock Unitderivative | -7,547 | $0.00 | $0 | 7,547 | Feb 24, 2026 |
| Feb 2, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +10,127 | - | - | 127,967 | Feb 4, 2026 |
| Feb 2, 2026 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -3,711 | $0.60 | $2,223 | 124,256 | Feb 4, 2026 |
| Feb 2, 2026 | Brent Hinds Chief Financial Officer | MOption exercise Restricted Stock Unitderivative | -10,127 | $0.00 | $0 | 10,127 | Feb 4, 2026 |
| Oct 1, 2025 | Lou Basenese director | AGrant or award Restricted Stock Unitsderivative | +24,621 | $0.00 | $0 | 70,266 | Oct 3, 2025 |
| Oct 1, 2025 | Gil Todd Silva director | AGrant or award Restricted Stock Unitsderivative | +26,830 | $0.00 | $0 | 120,469 | Oct 3, 2025 |
| Jul 1, 2025 | Catharine de Lacy director | AGrant or award Restricted Stock Unitsderivative | +32,175 | $0.00 | $0 | 218,957 | Jul 3, 2025 |
| Jul 1, 2025 | Gil Todd Silva director | AGrant or award Restricted Stock Unitsderivative | +32,638 | $0.00 | $0 | 93,639 | Jul 3, 2025 |
| Jul 1, 2025 | David M Maley director | AGrant or award Restricted Stock Unitsderivative | +9,452 | $0.00 | $0 | 105,443 | Jul 3, 2025 |
| Jul 1, 2025 | Lou Basenese director | AGrant or award Restricted Stock Unitsderivative | +34,722 | $0.00 | $0 | 45,645 | Jul 3, 2025 |
| Jul 1, 2025 | Judith S Schrecker director | AGrant or award Restricted Stock Unitsderivative | +46,296 | $0.00 | $0 | 431,957 | Jul 3, 2025 |
| May 22, 2025 | Lou Basenese director | AGrant or award Restricted Stock Unitsderivative | +10,923 | $0.00 | $0 | 10,923 | May 27, 2025 |
| Apr 1, 2025 | David M Maley director | AGrant or award Restricted Stock Unitsderivative | +23,728 | $0.00 | $0 | 95,991 | Apr 3, 2025 |
| Apr 1, 2025 | Gil Todd Silva director | AGrant or award Restricted Stock Unitsderivative | +19,369 | $0.00 | $0 | 61,001 | Apr 3, 2025 |
| Apr 1, 2025 | Judith S Schrecker director | AGrant or award Restricted Stock Unitsderivative | +33,735 | $0.00 | $0 | 385,661 | Apr 3, 2025 |
| Apr 1, 2025 | Catharine de Lacy director | AGrant or award Restricted Stock Unitsderivative | +24,857 | $0.00 | $0 | 186,782 | Apr 3, 2025 |
| Feb 24, 2025 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +7,547 | - | - | 120,476 | Feb 25, 2025 |
| Feb 24, 2025 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -2,636 | $0.80 | $2,107 | 117,840 | Feb 25, 2025 |
| Feb 24, 2025 | Brent Hinds Chief Financial Officer | MOption exercise Restricted Stock Unitderivative | -7,547 | $0.00 | $0 | 15,094 | Feb 25, 2025 |
| Feb 20, 2025 | Colin James Deller Chief Executive Officer | AGrant or award Common Stock | +100,393 | $0.00 | $0 | 221,699 | Feb 24, 2025 |
| Feb 20, 2025 | Brent Hinds Chief Financial Officer | AGrant or award Common Stock | +51,176 | $0.00 | $0 | 131,686 | Feb 24, 2025 |
| Feb 20, 2025 | Colin James Deller Chief Executive Officer | FTax withholding Common Stock | -49,846 | $0.86 | $43k | 171,853 | Feb 24, 2025 |
| Feb 20, 2025 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -18,757 | $0.86 | $16k | 112,929 | Feb 24, 2025 |
| Feb 20, 2025 | Brent Hinds Chief Financial Officer | AGrant or award Restricted Stock Unitderivative | +27,946 | $0.00 | $0 | 27,946 | Feb 24, 2025 |
| May 20, 2024 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +2,627 | - | - | 75,058 | Feb 21, 2025 |
| May 20, 2024 | Brent Hinds Chief Financial Officer | FTax withholding Common Stock | -963 | $0.78 | $751 | 74,095 | Feb 21, 2025 |
| Feb 2, 2025 | Brent Hinds Chief Financial Officer | MOption exercise Common Stock | +10,127 | - | - | 84,222 | Feb 21, 2025 |
Insiders
Everyone who has filed a Form 4 here.
- Lou Basenesedirector
- Anthony Digiandomenicoofficer, director, owner
- Colin James DellerChief Executive Officer
- Brent HindsChief Financial Officer
- David M Maleydirector
- Larry Michael Saddlerdirector
- Judith S Schreckerdirector
- Gil Todd Silvadirector
- Catharine de Lacydirector
Questions about CLIR
Answered from the filings on this page, as of the latest one.
Are insiders buying CLIR?
No. In the last 90 days no insider at ClearSign Technologies Corp bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade CLIR on the open market?
Gil Todd Silva (director) bought $11k of CLIR on Apr 23, 2026 and filed the Form 4 on Apr 27, 2026. InsiderTell scored 38 (weak).
How many insiders file Form 4 at ClearSign Technologies Corp?
9 people have filed a Form 4 at ClearSign Technologies Corp, among them Lou Basenese (director), Anthony Digiandomenico (officer, director and 10% owner), Colin James Deller (Chief Executive Officer). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.