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| Keyboard |
| Clearsign Combustion Corp | |
|---|---|
| Ticker | CLIR |
| CIK # | 0001434524 |
| CUSIP | 185064102 |
| Sector | Life Sciences - Industrial Instruments For Measurement, Display, And Control |
| Address | 12870 Interurban Avenue South, Seattle, WA 98168 |
| Source | [EDGAR] |
| Reg D Offering (Form D) | Filed | Raised | Terms |
|---|---|---|---|
| Clearsign Technologies Corp | 2024-07-09 | 4.3 M | Exemption: 506(b) · Remaining: $7,391,554 · Duration: One year or less · Revenue: Decline to Disclose |
| Clearsign Combustion Corp | 2018-07-23 | 11.7 M | Exemption: 506(b) · Minimum: $11,730,472 · Duration: One year or less · Revenue: Decline to Disclose |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001434524] | 10-K | |
| [0001434524] | 10-Q | |
| [0001434524] | 3 | |
| [0001434524] | 4 | |
| [0001434524] | 5 | |
| [0001434524] | 8-K | |
| [0001434524] | D | |
| [0001434524] | SC 13D | |
| [0001434524] | SC 13G |
| Form 13D/13G Filer | Form 13D/13G Subject | Filed | % Owned |
|---|---|---|---|
| Pasquesi John M | Clearsign Technologies Corp | [2025-04-09] | 0.0 |
| Simmons James M | Clearsign Combustion Corp | [2019-01-18] | 6.2 |
| Clirspv LLC | Clearsign Combustion Corp | [2018-07-30] | 19.9 |
| BD & DBG Living Trust | Clearsign Combustion Corp | [2013-01-24] | 11.9 |
| [2013-01-15] | None | ||
| Marlett Christopher A | Clearsign Combustion Corp | [2012-05-01] | 14.2 |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Silva Gil Todd
Common Stock
|
2026-03-17 | Buy | 2,000 | $4.20 | 8,400 |
|
Silva Gil Todd
Common Stock
|
2026-03-16 | Buy | 2,000 | $4.36 | 8,720 |
|
Deller Colin James
Common Stock
|
2026-02-26 | Tax withheld | 105,022 | $0.56 | 58,812 |
|
Hinds Brent
Common Stock
|
2026-02-26 | Grant | 56,645 | $0.00 | |
|
Deller Colin James
Common Stock
|
2026-02-26 | Grant | 210,043 | $0.00 | |
|
Hinds Brent
Common Stock
|
2026-02-26 | Tax withheld | 20,761 | $0.56 | 11,626 |
|
Hinds Brent
Restricted Stock Unit · derivative
|
2026-02-26 | Grant | 47,009 | $0.00 | |
|
Hinds Brent
Restricted Stock Unit · derivative
|
2026-02-22 | Option exercise | 7,547 | $0.00 | |
|
Hinds Brent
Common Stock
|
2026-02-22 | Tax withheld | 2,765 | $0.59 | 1,631 |
|
Hinds Brent
Common Stock
|
2026-02-22 | Option exercise | 7,547 | ||
|
Hinds Brent
Restricted Stock Unit · derivative
|
2026-02-20 | Option exercise | 9,315 | $0.00 | |
|
Hinds Brent
Common Stock
|
2026-02-20 | Option exercise | 9,315 | ||
|
Hinds Brent
Common Stock
|
2026-02-20 | Tax withheld | 3,413 | $0.59 | 2,014 |
|
Hinds Brent
Common Stock
|
2026-02-02 | Tax withheld | 3,711 | $0.60 | 2,227 |
|
Hinds Brent
Restricted Stock Unit · derivative
|
2026-02-02 | Option exercise | 10,127 | $0.00 | |
|
Hinds Brent
Common Stock
|
2026-02-02 | Option exercise | 10,127 | ||
|
Basenese Lou
Restricted Stock Units · derivative
|
2025-10-01 | Grant | 24,621 | $0.00 | |
|
Silva Gil Todd
Restricted Stock Units · derivative
|
2025-10-01 | Grant | 26,830 | $0.00 | |
|
Maley David M
Restricted Stock Units · derivative
|
2025-07-01 | Grant | 9,452 | $0.00 | |
|
Basenese Lou
Restricted Stock Units · derivative
|
2025-07-01 | Grant | 34,722 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 21 | 407,432 |
| 2025-12-31 | 38 | 4,454,660 |
| 2025-09-30 | 39 | 4,232,793 |
| 2025-06-30 | 38 | 4,521,438 |
| 2025-03-31 | 39 | 4,094,343 |
| 2024-12-31 | 32 | 3,346,803 |
| 2024-09-30 | 28 | 3,142,087 |
| 2024-06-30 | 30 | 3,143,490 |
| 2024-03-31 | 28 | 2,985,507 |
| 2023-12-31 | 27 | 2,756,901 |
| 2023-09-30 | 30 | 2,836,326 |
| 2023-06-30 | 29 | 2,707,735 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Gleason Group Inc | [2026-06-30] | SOLE | 0 | 1,802 | Prev | Page 1 | Next |