ClearSign Technologies Corporation (CLIR) Insider Trading
Over the last 3 months, CLIR insiders made 1 open-market buy and 0 sales, a net purchase of $5K (SEC Form 4). Over the last 6 months, 10 institutions increased and 25 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
1
Sells (3m)
0
Net (3m)
$5.3K
Insiders buying
Insider trades by month Buys Sells
Aug
Jun
Jul
Jun
Mar
Apr
Context3-month price -36.7%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 2, 2026 | Basenese Loudirector | Grant | 4,595 | $3.67 |
| Jul 2, 2026 | Silva Gil Todddirector | Grant | 4,595 | $3.67 |
| Jul 2, 2026 | DIGIANDOMENICO ANTHONYdirector | Grant | 4,595 | $3.67 |
| Jul 2, 2026 | Silva Gil Todddirector | Grant | 4,087 | — |
| Apr 27, 2026 | Silva Gil Todddirector | Buy | 1,000 | $5.32 |
| Apr 27, 2026 | Deller Colin Jamesdirector, officer: Chief Executive Officer | Tax | 3,501 | $5.62 |
| Apr 27, 2026 | Deller Colin Jamesdirector, officer: Chief Executive Officer | Grant | 7,001 | $5.62 |
| Apr 2, 2026 | Basenese Loudirector | Grant | 3,024 | $4.36 |
| Apr 2, 2026 | Silva Gil Todddirector | Grant | 3,024 | $4.36 |
| Apr 2, 2026 | Silva Gil Todddirector | Grant | 3,440 | — |
| Apr 2, 2026 | DIGIANDOMENICO ANTHONYdirector | Grant | 3,024 | $4.36 |
| Mar 19, 2026 | Silva Gil Todddirector | Buy | 2,000 | $4.36 |
| Mar 2, 2026 | Hinds Brentofficer: Chief Financial Officer | Grant | 47,009 | — |
| Mar 2, 2026 | Hinds Brentofficer: Chief Financial Officer | Tax | 20,761 | $0.56 |
| Mar 2, 2026 | Deller Colin Jamesofficer: Chief Executive Officer | Grant | 210,043 | — |
| Mar 2, 2026 | Hinds Brentofficer: Chief Financial Officer | Grant | 56,645 | — |
| Mar 2, 2026 | Deller Colin Jamesofficer: Chief Executive Officer | Tax | 105,022 | $0.56 |
| Feb 24, 2026 | Hinds Brentofficer: Chief Financial Officer | Option | 9,315 | — |
| Feb 24, 2026 | Hinds Brentofficer: Chief Financial Officer | Tax | 2,765 | $0.59 |
| Feb 24, 2026 | Hinds Brentofficer: Chief Financial Officer | Tax | 3,413 | $0.59 |
| Feb 24, 2026 | Hinds Brentofficer: Chief Financial Officer | Option | 7,547 | — |
| Feb 4, 2026 | Hinds Brentofficer: Chief Financial Officer | Option | 10,127 | — |
| Feb 4, 2026 | Hinds Brentofficer: Chief Financial Officer | Tax | 3,711 | $0.60 |
| Oct 3, 2025 | Basenese Loudirector | Grant | 24,621 | — |
| Oct 3, 2025 | Silva Gil Todddirector | Grant | 26,830 | — |
| Jul 3, 2025 | Basenese Loudirector | Grant | 34,722 | — |
| Jul 3, 2025 | Schrecker Judith Sdirector | Grant | 46,296 | — |
| Jul 3, 2025 | de Lacy Catharinedirector | Grant | 32,175 | — |
| Jul 3, 2025 | Silva Gil Todddirector | Grant | 32,638 | — |
| Jul 3, 2025 | Maley David Mdirector | Grant | 9,452 | — |
Source: CLIR SEC Form 4 filings, latest Jul 2, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CLIR positions over the last 6 months (SEC Form 13F).
Increased
10
New positions
9
Reduced
25
Sold out
28
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Increased | 1.3M | Jan 29, 2026 |
| SIMON QUICK ADVISORS, LLC | Unchanged | 603K | Jan 29, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 523K | Feb 9, 2026 |
| CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC. | Unchanged | 443K | Feb 5, 2026 |
| BLACKROCK, INC. | Unchanged | 199K | Feb 12, 2026 |
| CREATIVE PLANNING | Reduced | 136K | Feb 17, 2026 |
| HIGHTOWER ADVISORS, LLC | Unchanged | 127K | Feb 6, 2026 |
| DDD PARTNERS, LLC | Increased | 120K | Jan 22, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 105K | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 105K | Feb 17, 2026 |
| STATE STREET CORP | Unchanged | 89K | Feb 13, 2026 |
| ROCKEFELLER CAPITAL MANAGEMENT L.P. | Increased | 81K | Mar 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 78K | Feb 12, 2026 |
| NORTHERN TRUST CORP | Reduced | 74K | Feb 17, 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | Unchanged | 72K | Feb 10, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.