Institutional Ownership
Vanguard Group Inc is the biggest individual institutional holder of ClearSign Combustion Corporation (CLIR), owning a total of 1.2 million shares. Combined, the top 47 institutional holders of CLIR own 9.72% of the company with a total of 5 million shares.
In the latest ownership report on June 30th 2025, the top 47 institutional holders increased their combined ownership of CLIR by 428 thousand shares. 10 institutions bought 454,728 total additional shares and increased their ownership by an average of 97.87%. However 2 institutions sold 27,022 total shares and decreased their ownership by an average of 12.45%.
Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of ClearSign Combustion Corporation increased by a net total of 427,706 in the latest quarter.
Institution Ownership Chart
Latest Institutional Ownership Changes
| Owner | Percent Owned | Percent Change | Shares Owned | Share Change | Date Reported |
|---|---|---|---|---|---|
| Vanguard Group Inc | 2.223% | 3.068% | 1,165,417 | 34,687 | 2025-06-30 |
| Massey, Quick & Co. LLC | 1.151% | 0.000% | 603,149 | 0 | 2025-06-30 |
| Geode Capital Management, LLC | 1.056% | 0.817% | 553,675 | 4,489 | 2025-06-30 |
| CAMBRIDGE Invest RESEARCH ADVISORS, INC. | 0.845% | -2.208% | 443,000 | -10,001 | 2025-06-30 |
| Beacon Pointe Advisors, LLC | 0.518% | 0.000% | 271,739 | 271,739 | 2025-06-30 |
| BlackRock Inc | 0.380% | 0.000% | 199,304 | 0 | 2025-06-30 |
| Creative Planning Inc | 0.271% | 0.000% | 141,853 | 0 | 2025-06-30 |
| HighTower Advisors, LLC | 0.246% | 1.577% | 128,809 | 2,000 | 2025-06-30 |
| DDD Partners, LLC | 0.219% | 0.000% | 115,000 | 0 | 2025-06-30 |
| Susquehanna International Group, LLP | 0.199% | 46.853% | 104,097 | 33,212 | 2025-06-30 |
| State Street Corp | 0.170% | 0.000% | 88,989 | 0 | 2025-06-30 |
| Northern Trust Corp | 0.144% | 0.000% | 75,466 | 0 | 2025-06-30 |
| Northwestern Mutual Wealth Management Co | 0.137% | 895.282% | 71,730 | 64,523 | 2025-06-30 |
| Renaissance Technologies Corp | 0.111% | -22.688% | 58,000 | -17,021 | 2025-06-30 |
| Disciplined Investments, LLC | 0.107% | 18.533% | 55,886 | 8,738 | 2025-06-30 |
| Citadel Advisors Llc | 0.085% | 10.563% | 44,316 | 4,234 | 2025-06-30 |
| INTEGRITY ALLIANCE, LLC. | 0.077% | 2.024% | 40,324 | 800 | 2025-06-30 |
| Highland Capital Management, LLC | 0.062% | 0.000% | 32,454 | 0 | 2025-06-30 |
| TWO SIGMA SECURITIES, LLC | 0.058% | 0.000% | 30,306 | 30,306 | 2025-06-30 |
| Americana Partners, LLC | 0.057% | 0.000% | 30,000 | 0 | 2025-06-30 |
| Charles Schwab Investment Management Inc | 0.049% | 0.000% | 25,555 | 0 | 2025-06-30 |
Top Institutions
| Owner | Percent Owned | Percent Change | Shares Owned | Share Change | Date Reported |
|---|---|---|---|---|---|
| Vanguard Group Inc | 2.223% | 3.068% | 1,165,417 | 34,687 | 2025-06-30 |
| Massey, Quick & Co. LLC | 1.151% | 0.000% | 603,149 | 0 | 2025-06-30 |
| Geode Capital Management, LLC | 1.056% | 0.817% | 553,675 | 4,489 | 2025-06-30 |
| CAMBRIDGE Invest RESEARCH ADVISORS, INC. | 0.845% | -2.208% | 443,000 | -10,001 | 2025-06-30 |
| Beacon Pointe Advisors, LLC | 0.518% | 0.000% | 271,739 | 271,739 | 2025-06-30 |
| BlackRock Inc | 0.380% | 0.000% | 199,304 | 0 | 2025-06-30 |
| Creative Planning Inc | 0.271% | 0.000% | 141,853 | 0 | 2025-06-30 |
| HighTower Advisors, LLC | 0.246% | 1.577% | 128,809 | 2,000 | 2025-06-30 |
| Streettalk Advisors LLC | 0.327% | 0.000% | 125,995 | 0 | 2023-03-31 |
| DDD Partners, LLC | 0.219% | 0.000% | 115,000 | 0 | 2025-06-30 |
| Susquehanna International Group, LLP | 0.199% | 46.853% | 104,097 | 33,212 | 2025-06-30 |
| State Street Corp | 0.170% | 0.000% | 88,989 | 0 | 2025-06-30 |
| Northern Trust Corp | 0.144% | 0.000% | 75,466 | 0 | 2025-06-30 |
| Northwestern Mutual Wealth Management Co | 0.137% | 895.282% | 71,730 | 64,523 | 2025-06-30 |
| State Street Corporation | 0.131% | 0.000% | 65,689 | 0 | 2024-03-31 |
| Renaissance Technologies Corp | 0.111% | -22.688% | 58,000 | -17,021 | 2025-06-30 |
| Disciplined Investments, LLC | 0.107% | 18.533% | 55,886 | 8,738 | 2025-06-30 |
| BMO Capital Markets Corp. | 0.141% | 5,240.000% | 53,400 | 52,400 | 2022-06-30 |
| Bank of Montreal | 0.141% | 0.000% | 53,400 | 0 | 2022-06-30 |
| Raymond James Finl Svs Advisors, Inc. | 0.095% | 0.000% | 49,701 | 0 | 2024-09-30 |
| Citadel Advisors Llc | 0.085% | 10.563% | 44,316 | 4,234 | 2025-06-30 |
| INTEGRITY ALLIANCE, LLC. | 0.077% | 2.024% | 40,324 | 800 | 2025-06-30 |
| Highland Capital Management, LLC | 0.062% | 0.000% | 32,454 | 0 | 2025-06-30 |
| TWO SIGMA SECURITIES, LLC | 0.058% | 0.000% | 30,306 | 30,306 | 2025-06-30 |
| Americana Partners, LLC | 0.057% | 0.000% | 30,000 | 0 | 2025-06-30 |
| Chicago Partners Investment Group LLC | 0.053% | 0.000% | 28,000 | 28,000 | 2025-03-31 |
| Stifel Financial Corp | 0.053% | 0.000% | 26,434 | 26,434 | 2024-03-31 |
| Regal Investment Advisors LLC | 0.068% | 4.948% | 26,237 | 1,237 | 2023-03-31 |
| Charles Schwab Investment Management Inc | 0.049% | 0.000% | 25,555 | 0 | 2025-06-30 |
| XTX Topco Ltd | 0.046% | 22.767% | 24,201 | 4,488 | 2025-03-31 |
| UBS Group AG | 0.046% | 139.801% | 23,829 | 13,892 | 2024-12-31 |
| Bank of New York Mellon Corp | 0.051% | 0.000% | 23,263 | 0 | 2023-12-31 |
| Wells Fargo & Co | 0.040% | 0.000% | 21,050 | 0 | 2024-12-31 |
| Goldman Sachs Group Inc | 0.039% | -51.950% | 20,493 | -22,156 | 2025-03-31 |
| CHANNEL WEALTH LLC | 0.040% | 0.000% | 20,000 | 20,000 | 2024-03-31 |
| Jackson Hole Capital Partners, LLC | 0.052% | -27.318% | 20,000 | -7,517 | 2023-12-31 |
| JANE STREET GROUP, LLC | 0.036% | -54.265% | 18,263 | -21,669 | 2024-06-30 |
| Jane Street Group LLC | 0.036% | -54.265% | 18,263 | -21,669 | 2024-06-30 |
| Centerpoint Advisors, LLC | 0.031% | 0.000% | 15,700 | 0 | 2024-12-31 |
| Millennium Management LLC | 0.028% | 0.000% | 14,012 | 14,012 | 2024-03-31 |
| Rockefeller Capital Management L.P. | 0.032% | 0.000% | 12,300 | 0 | 2023-03-31 |
| Group One Trading, LP | 0.031% | -27.675% | 11,849 | -4,534 | 2022-06-30 |
| Morgan Stanley - Brokerage Accounts | 0.013% | 0.000% | 4,940 | 0 | 2023-09-30 |
| Deutsche Bank AG | 0.008% | 0.000% | 4,000 | 0 | 2024-09-30 |
| Tower Research Capital LLC | 0.008% | -75.010% | 3,906 | -11,724 | 2024-09-30 |
| Stonebridge Capital Advisors LLC | 0.007% | 0.000% | 2,600 | 0 | 2023-09-30 |
| Planned Solutions, Inc. | 0.004% | 0.000% | 1,680 | 1,680 | 2023-12-31 |
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