ClearSign Technologies Corporation (CLIR)Â
Trading
Quantity
Profitability
Ownership
Largest Insider Buys in Sector
CLIR Insider Trading Activity
CLIR Median Price and Trade Amounts History Chart
Statistics of Insider Transactions
Amount of Insider Buys and Sells
Buys | $3,048,500 | 1 | 100 |
Sells | $0 | 0 | 0 |
Related Transactions
| HOFFMAN Robert Thurston Sr | 10 percent owner | 1 | $3.05M | 0 | $0 | $3.05M |
About ClearSign Technologies Corporation
ClearSign Technologies Corporation designs and develops products and technologies to enhance operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States and the People's Republic of China. Its ClearSign Core Burner Technology consists of an industrial burner body and a downstream porous ceramic structure or metal flame stabilizing device; ClearSign Core Plug & Play technology provides direct burner replacement for traditional refinery process heaters; and ClearSign Eye Flame Sensor, an electrical flame sensor for industrial applications. The company also provides ClearSign Core Boiler Burner; and ClearSign Core Flaring Burners technologies. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.
Insider Activity of ClearSign Technologies Corporation
Over the last 12 months, insiders at ClearSign Technologies Corporation have bought $3.05M and sold $0 worth of ClearSign Technologies Corporation stock.
On average, over the past 5 years, insiders at ClearSign Technologies Corporation have bought $1.06M and sold $0 worth of stock each year.
Highest buying activity among insiders over the last 12 months: HOFFMAN Robert Thurston Sr (10 percent owner) — $3.05M.
The last purchase of 3,350,000 shares for transaction amount of $3.05M was made by HOFFMAN Robert Thurston Sr (10 percent owner) on 2024‑06‑24.
List of Insider Buy and Sell Transactions, ClearSign Technologies Corporation
| 2024-06-24 | HOFFMAN Robert Thurston Sr | 10 percent owner | 3.35M 10.1018% | $0.91 | $3.05M | +33.82% | ||
| 2022-07-08 | Princeton Opportunity Management LLC | 0 – | $0 | $0 | -27.97% | |||
| 2022-06-14 | Pate Bruce Alan | 45,000 0.1342% | $1.12 | $50,400 | -24.11% | |||
| 2020-08-24 | Pate Bruce Alan | director | 35,000 0.1133% | $2.00 | $70,000 | +79.28% | ||
| 2020-08-24 | Meline Susanne | director | 5,000 0.0162% | $2.00 | $10,000 | +79.28% | ||
| 2019-05-17 | Pate Bruce Alan | director | 100,000 0.3646% | $1.01 | $101,240 | -5.77% | ||
| 2019-03-19 | Kendrick Donald W | Chief Technology Officer | 10,000 0.0393% | $0.94 | $9,400 | +5.32% | ||
| 2018-12-18 | Kendrick Donald W | Chief Technology Officer | 20,000 0.0794% | $1.14 | $22,800 | -5.31% | ||
| 2018-02-27 | BELL LON E | director | 222,000 1.2126% | $2.25 | $499,500 | -22.75% | ||
| 2018-02-27 | PIRNAT STEPHEN E | Chief Executive Officer | 20,000 0.1092% | $2.25 | $45,000 | -22.75% | ||
| 2018-02-27 | Meline Susanne | director | 44,444 0.2428% | $2.25 | $99,999 | -22.75% | ||
| 2018-02-27 | Fike Brian Grant | Interim CFO | 2,000 0.0109% | $2.25 | $4,500 | -22.75% | ||
| 2017-12-04 | Kendrick Donald W | Chief Technology Officer | 10,000 0.0578% | $2.13 | $21,250 | -3.85% | ||
| 2017-08-22 | Kendrick Donald W | Chief Technology Officer | 10,000 0.0639% | $2.89 | $28,907 | -20.69% | ||
| 2017-08-21 | PIRNAT STEPHEN E | Chief Executive Officer | 2,000 0.013% | $2.94 | $5,890 | -20.69% | ||
| 2017-08-18 | Ruiz Roberto | Chief Operating Officer | 2,000 0.0132% | $3.19 | $6,380 | -25.81% | ||
| 2017-08-17 | LEE ANDREW U | See Remarks | 2,000 0.0126% | $3.19 | $6,390 | -29.23% | ||
| 2016-03-29 | HARMON JAMES N | Chief Financial Officer | 20,000 0.1578% | $3.96 | $79,200 | +10.00% | ||
| 2016-03-10 | COLANNINO JOSEPH | Chief Technology Officer | 16,400 0.1271% | $3.49 | $57,236 | +22.71% | ||
| 2016-03-09 | COLANNINO JOSEPH | Chief Technology Officer | 4,200 0.0323% | $3.36 | $14,112 | +26.32% |
Insider Historical Profitability
| HOFFMAN Robert Thurston Sr | 10 percent owner | 9539857 18.9907% | $7.68M | 1 | 0 | |
| BD & DBG LIVING TRUST | director | 603324 1.201% | $485,736.15 | 0 | 36 | |
| OSLER GEOFFREY D | Chief Marketing Officer | 425249 0.8465% | $342,367.97 | 0 | 5 | |
| BELL LON E | director | 354472 0.7056% | $285,385.41 | 3 | 0 | <0.0001% |
| RUTKOWSKI RICHARD F | Chief Executive Officer | 171250 0.3409% | $137,873.38 | 1 | 0 | <0.0001% |
| Pate Bruce Alan | 150000 0.2986% | $120,765.00 | 3 | 0 | +16.47% | |
| PIRNAT STEPHEN E | Chief Executive Officer | 113947 0.2268% | $91,738.73 | 4 | 0 | <0.0001% |
| Princeton Opportunity Management LLC | 110519 0.22% | $88,978.85 | 1 | 0 | ||
| Meline Susanne | director | 54249 0.108% | $43,675.87 | 2 | 0 | +28.27% |
| Kendrick Donald W | Chief Technology Officer | 44233 0.0881% | $35,611.99 | 4 | 0 | <0.0001% |
| COLANNINO JOSEPH | Chief Technology Officer | 25775 0.0513% | $20,751.45 | 4 | 0 | +34.46% |
| HARMON JAMES N | Chief Financial Officer | 16000 0.0319% | $12,881.60 | 4 | 0 | +18.64% |
| LEE ANDREW U | See Remarks | 5800 0.0115% | $4,669.58 | 4 | 0 | +21.58% |
| Ruiz Roberto | Chief Operating Officer | 5560 0.0111% | $4,476.36 | 3 | 0 | <0.0001% |
| Fike Brian Grant | Interim CFO | 1000 0.002% | $805.10 | 1 | 0 | <0.0001% |
CLIR Institutional Investors: Active Positions
| Increased Positions | 15 | +60% | 269,049 | +8.52% |
| Decreased Positions | 6 | -24% | 14,534 | -0.46% |
| New Positions | 7 | New | 187,803 | New |
| Sold Out Positions | 2 | Sold Out | 2,180 | Sold Out |
| Total Postitions | 34 | +36% | 3M | +8.06% |
CLIR Ownership Change vs Market
Institutional Investor Ownership
| Vanguard Group Inc | $847.00 | 2.23% | 1.12M | 0 | 0% | 2024-12-31 |
| Geode Capital Management, Llc | $408.00 | 1.07% | 536,995 | +15,766 | +3.02% | 2024-12-31 |
| Cambridge Investment Research Advisors, Inc. | $344.00 | 0.91% | 453,000 | 0 | 0% | 2024-12-31 |
| Creative Planning | $160.00 | 0.42% | 210,286 | +3,216 | +1.55% | 2024-12-31 |
| Blackrock, Inc. | $151.00 | 0.4% | 199,304 | 0 | 0% | 2024-12-31 |
| Hightower Advisors, Llc | $96.00 | 0.25% | 126,809 | 0 | 0% | 2024-12-31 |
| Ddd Partners, Llc | $80.00 | 0.21% | 105,000 | -10,000 | -8.7% | 2024-12-31 |
| State Street Corp | $68.00 | 0.18% | 88,989 | +23,300 | +35.47% | 2024-12-31 |
| Northern Trust Corp | $57.00 | 0.15% | 75,466 | +14,521 | +23.83% | 2024-12-31 |
| Renaissance Technologies Llc | $44.00 | 0.12% | 58,500 | +58,500 | New | 2024-12-31 |