CLIRNasdaqIndustrial Instruments For Measurement, Display, and ControlFiscal year ends December 31
ClearSign Technologies Corp
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 14, 2026
$2.34−0.06 (-2.50%)
Close on Oct 19, 2026
- Market cap
- $13.88M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
6.9%
0M of 7M shares
Institutional holders
25
6 new, 1 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
5 buys · 0 sales
Net bought $1.80M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| John M Pasquesi | 1,364,977 | 19.90% | 13G (passive) amendment | Jul 22, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of CLIR | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 105,429 | 1.55% | $386.92K | – | 0.00% |
| Cambridge Investment Research Advisors, Inc. | 88,600 | 1.30% | $326 | +44,300 | 0.00% |
| Simon Quick Advisors, LLC | 60,314 | 0.89% | $221.35K | – | 0.01% |
| Geode Capital Management, LLC | 51,457 | 0.76% | $188.89K | −6,226 | 0.00% |
| Beacon Pointe Advisors, LLC | 27,173 | 0.40% | $99.73K | – | 0.00% |
| Vanguard Fiduciary Trust Co | 23,460 | 0.34% | $86.10K | – | 0.00% |
| HighTower Advisors, LLC | 22,662 | 0.33% | $83.17K | +9,982 | 0.00% |
| Citadel Advisors LLC | 20,565 | 0.30% | $75.47K | New | 0.00% |
| BlackRock, Inc. | 19,503 | 0.29% | $71.58K | – | 0.00% |
| DDD Partners, LLC | 12,000 | 0.18% | $44.04K | – | 0.00% |
| Northern Trust Corp | 10,080 | 0.15% | $36.99K | New | 0.00% |
| Rockefeller Capital Management L.P. | 8,120 | 0.12% | $29.80K | – | 0.00% |
| Northwestern Mutual Wealth Management Co | 7,172 | 0.11% | $26.32K | – | 0.00% |
| Wells Fargo & Company/Mn | 2,125 | 0.03% | $7.80K | – | 0.00% |
| Gleason Group, Inc. | 1,802 | 0.03% | $6.61K | – | 0.00% |
| Centerpoint Advisors, LLC | 1,560 | 0.02% | $6 | – | 0.00% |
| Tower Research Capital LLC (TRC) | 1,518 | 0.02% | $5.57K | +473 | 0.00% |
| Vanguard Global Advisers, LLC | 1,350 | 0.02% | $4.96K | – | 0.00% |
| Integrated Wealth Concepts LLC | 687 | 0.01% | $2.52K | New | 0.00% |
| Royal Bank of Canada | 684 | 0.01% | $3.00K | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 25 | 0M | 6.9% | 6 / 4 | 1 / 1 | 0M | 0M |
| Q1 2026 | 20 | 0M | 5.9% | 20 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of CLIR | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 59,026 | 0.87% | $216.63K | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 46,403 | 0.68% | $170.30K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 27,157 | 0.40% | $125.74K | 0.00% | May 31, 2026 |
| Fidelity Total Market Index Fund | 10,243 | 0.15% | $47.43K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 7,139 | 0.10% | $33.05K | 0.00% | May 31, 2026 |
| Fidelity Nasdaq Composite Index Fund | 2,091 | 0.03% | $9.68K | 0.00% | May 31, 2026 |
| Dimensional US Sustainability Core 1 ETF | 1,472 | 0.02% | $5.68K | 0.00% | Jul 31, 2026 |
| Dimensional U.S. Core Equity 2 ETF | 1,055 | 0.02% | $4.07K | 0.00% | Jul 31, 2026 |
| Dimensional US Core Equity 1 ETF | 547 | 0.01% | $2.11K | 0.00% | Jul 31, 2026 |
| U.S. Vector Equity Portfolio | 139 | 0.00% | $537 | 0.00% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Colin James Deller | Chief Executive Officer, Director | 31,466 | 0.46% | Apr 27, 2026 |
| Brent Hinds | Chief Financial Officer | 170,824 | 2.51% | Mar 2, 2026 |
| Larry Michael Saddler | Director | – | – | Aug 11, 2026 |
| Gil Todd Silva | Director | 6,000 | 0.09% | Jul 2, 2026 |
| Anthony Digiandomenico | Director | 544,478 | 8.00% | Jul 2, 2026 |
| Lou Basenese | Director | 20,000 | 0.29% | Jul 2, 2026 |
| David M. Maley | Director | – | – | Jul 3, 2025 |
| Judith S. Schrecker | Director | – | – | Jul 3, 2025 |
| Lacy Catharine de | Director | – | – | Jul 3, 2025 |
| John M. Pasquesi | 10% owner | 1,343,477 | 19.74% | Jul 24, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| John M. Pasquesi 10% owner | Jul 22, 2026 | Buy | +500,000 | $3.54 | $1.77M | 1,343,477 |
| Gil Todd Silva Director | Apr 23, 2026 | Buy | +1,000 | $5.25 | $5.25K | 6,000 |
| Gil Todd Silva Director | Apr 23, 2026 | Buy | +1,000 | $5.32 | $5.32K | 5,000 |
| Gil Todd Silva Director | Mar 17, 2026 | Buy | +2,000 | $4.20 | $8.40K | 4,000 |
| Gil Todd Silva Director | Mar 16, 2026 | Buy | +2,000 | $4.36 | $8.72K | 2,000 |
| Colin James Deller Chief Executive Officer, Director | Feb 26, 2026 | Tax withholding | −3,501 | $5.62 | $19.68K | 31,466 |
| Colin James Deller Chief Executive Officer, Director | Feb 26, 2026 | Award | +7,001 | $5.62 | $39.35K | 34,967 |
| Brent Hinds Chief Financial Officer | Feb 26, 2026 | Tax withholding | −20,761 | $0.56 | $11.63K | 170,824 |
| Brent Hinds Chief Financial Officer | Feb 26, 2026 | Award | +56,645 | – | – | 191,585 |
| Colin James Deller Chief Executive Officer | Feb 26, 2026 | Award | +210,043 | – | – | 381,896 |
| Colin James Deller Chief Executive Officer | Feb 26, 2026 | Tax withholding | −105,022 | $0.56 | $58.81K | 276,874 |
| Brent Hinds Chief Financial Officer | Feb 22, 2026 | Option exercise | +7,547 | – | – | 137,705 |
| Brent Hinds Chief Financial Officer | Feb 22, 2026 | Tax withholding | −2,765 | $0.59 | $1.63K | 134,940 |
| Brent Hinds Chief Financial Officer | Feb 20, 2026 | Tax withholding | −3,413 | $0.59 | $2.01K | 130,158 |
| Brent Hinds Chief Financial Officer | Feb 20, 2026 | Option exercise | +9,315 | – | – | 133,571 |
| Brent Hinds Chief Financial Officer | Feb 2, 2026 | Tax withholding | −3,711 | $0.60 | $2.23K | 124,256 |
| Brent Hinds Chief Financial Officer | Feb 2, 2026 | Option exercise | +10,127 | – | – | 127,967 |
| Brent Hinds Chief Financial Officer | Feb 24, 2025 | Tax withholding | −2,636 | $0.80 | $2.11K | 117,840 |
| Brent Hinds Chief Financial Officer | Feb 24, 2025 | Option exercise | +7,547 | – | – | 120,476 |
| Brent Hinds Chief Financial Officer | Feb 20, 2025 | Award | +51,176 | – | – | 131,686 |
| Brent Hinds Chief Financial Officer | Feb 20, 2025 | Tax withholding | −18,757 | $0.86 | $16.13K | 112,929 |
| Colin James Deller Chief Executive Officer | Feb 20, 2025 | Award | +100,393 | – | – | 221,699 |
| Colin James Deller Chief Executive Officer | Feb 20, 2025 | Tax withholding | −49,846 | $0.86 | $42.87K | 171,853 |
| Brent Hinds Chief Financial Officer | Feb 2, 2025 | Tax withholding | −3,712 | $1.20 | $4.45K | 80,510 |
| Brent Hinds Chief Financial Officer | Feb 2, 2025 | Option exercise | +10,127 | – | – | 84,222 |
| Opportunity Management LLC Princeton 10% owner | Jun 24, 2024 | Buy | +3,350,000 | $0.91 | $3.05M | 9,539,857 |
| Brent Hinds Chief Financial Officer | May 20, 2024 | Tax withholding | −963 | $0.78 | $751 | 74,095 |
| Brent Hinds Chief Financial Officer | May 20, 2024 | Option exercise | +2,627 | – | – | 75,058 |
| Colin James Deller Chief Executive Officer | Feb 22, 2024 | Tax withholding | −65,102 | $1.06 | $69.01K | 121,306 |
| Colin James Deller Chief Executive Officer | Feb 22, 2024 | Award | +131,121 | – | – | 186,408 |
| Brent Hinds Chief Financial Officer | Feb 22, 2024 | Tax withholding | −16,520 | $1.06 | $17.51K | 72,431 |
| Brent Hinds Chief Financial Officer | Feb 22, 2024 | Award | +45,075 | – | – | 88,951 |
| Brent Hinds Chief Financial Officer | Feb 2, 2024 | Tax withholding | −3,712 | $1.01 | $3.75K | 65,549 |
| Brent Hinds Chief Financial Officer | Feb 2, 2024 | Option exercise | +10,126 | – | – | 69,261 |
| LLC clirSPV 10% owner | Feb 1, 2024 | Other | −1,269,705 | – | – | 6,189,857 |
| Colin James Deller Chief Executive Officer | Feb 2, 2023 | Tax withholding | −54,519 | $0.79 | $43.07K | 55,287 |
| Brent Hinds Chief Financial Officer | Feb 2, 2023 | Tax withholding | −21,673 | $0.79 | $17.12K | 37,462 |
| Colin James Deller Chief Executive Officer, Director | Feb 2, 2023 | Award | +109,806 | – | – | 109,806 |
| Brent Hinds VP and Controller | Feb 2, 2023 | Award | +59,135 | – | – | 59,135 |
| LLC clirSPV 10% owner | Jul 8, 2022 | Buy | +0 | – | – | 13,153 |
| LLC clirSPV 10% owner | Jul 8, 2022 | Buy | +0 | – | – | 110,519 |
| LLC clirSPV 10% owner | Jul 8, 2022 | Buy | +1,591,594 | $1.11 | $1.77M | 7,583,234 |
| Bruce Alan Pate Director | Jun 14, 2022 | Buy | +45,000 | $1.12 | $50.40K | 150,000 |
| Brian Grant Fike Chief Financial Officer | Jan 10, 2021 | Tax withholding | −5,765 | $3.37 | $19.43K | 10,071 |
| Brian Grant Fike Chief Financial Officer | Jan 10, 2021 | Award | +14,837 | $3.37 | $50.00K | 15,837 |
| Bruce Alan Pate Director | Aug 24, 2020 | Buy | +35,000 | $2.00 | $70.00K | 105,000 |
| Susanne Meline Director | Aug 24, 2020 | Buy | +5,000 | $2.00 | $10.00K | 54,249 |
| Bruce Alan Pate Director | May 17, 2019 | Buy | +100,000 | $1.01 | $101.00K | 100,000 |
| Donald W. Kendrick Chief Technology Officer | Mar 19, 2019 | Buy | +5,000 | $0.94 | $4.70K | 30,600 |
| Donald W. Kendrick Chief Technology Officer | Mar 19, 2019 | Buy | +5,000 | $0.94 | $4.70K | 44,233 |
| Susanne Meline Director | Dec 31, 2018 | Award | +6,756 | – | – | 49,249 |
| Lon E. Bell Director | Dec 31, 2018 | Award | +6,756 | – | – | 381,499 |
| Scott P. Isaacson Director | Dec 31, 2018 | Award | +6,756 | – | – | 107,935 |
| Robert Thurston HOFFMAN Sr Director | Dec 31, 2018 | Award | +13,153 | – | – | 13,153 |
| Donald W. Kendrick Chief Technology Officer | Dec 18, 2018 | Buy | +10,000 | $1.14 | $11.40K | 39,233 |
| Jeffrey L. Ott Director | Sep 28, 2018 | Award | +6,757 | – | – | 72,497 |
| Lon E. Bell Director | Sep 28, 2018 | Award | +6,757 | – | – | 374,743 |
| Scott P. Isaacson Director | Sep 28, 2018 | Award | +6,757 | – | – | 101,179 |
| Susanne Meline Director | Sep 28, 2018 | Award | +6,757 | – | – | 42,493 |
| Scott P. Isaacson Director | Jun 29, 2018 | Award | +13,514 | – | – | 94,422 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.