ClearSign Technologies Corp
CLIR- Exchange
- Nasdaq
- Industry
- Industrial Instruments For Measurement, Display, and Control
- SEC CIK
- 0001434524
In the last 90 days, ClearSign Technologies Corp insiders filed 1 open-market purchase and 0 sales; 24 institutions reported holding it in 13F filings for Q2 2026, worth $1.55M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in ClearSign Technologies Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 39
- +2 vs. Q2 2025
- Shares held
- 4.23M
- −302.7K (−6.7%) vs. Q2 2025
- Total value
- $3.27M
- +$797.8K (+32.3%) vs. Q2 2025
- New holders
- 7
- 4 more added
- Sold out
- 5
- 11 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CLIR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 24 | $1.55M |
| Q1 2026 | 20 | $1.74M |
| Q4 2025 | 38 | $2.48M |
| Q3 2025 | 39 | $3.27M |
| Q2 2025 | 37 | $2.47M |
| Q1 2025 | 38 | $3.07M |
| Q4 2024 | 31 | $4.84M |
| Q3 2024 | 27 | $2.68M |
| Q2 2024 | 29 | $2.64M |
| Q1 2024 | 27 | $2.81M |
| Q4 2023 | 26 | $3.07M |
| Q3 2023 | 28 | $3.03M |
| Q2 2023 | 27 | $3.47M |
| Q1 2023 | 26 | $2.00M |
| Q4 2022 | 29 | $1.37M |
| Q3 2022 | 27 | $2.44M |
| Q2 2022 | 27 | $3.14M |
| Q1 2022 | 26 | $4.31M |
| Q4 2021 | 27 | $3.74M |
| Q3 2021 | 34 | $5.53M |
| Q2 2021 | 43 | $14.3M |
| Q1 2021 | 35 | $16.0M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding ClearSign Technologies Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 1,277,584 | $985.0K | 0.00% | +112,167+9.6% | Added |
| Simon Quick Advisors, LLC | 603,149 | $465.1K | 0.02% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 523,229 | $403.6K | 0.00% | −30,446−5.5% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 443,000 | $342.0K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 199,304 | $153.7K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 159,053 | $122.7K | 0.00% | +17,200+12.1% | Added |
| HighTower Advisors, LLC | 126,809 | $97.8K | 0.00% | −2,000−1.6% | Reduced |
| DDD Partners, LLC | 115,000 | $88.7K | 0.01% | 00.0% | Unchanged |
| State Street Corp | 88,989 | $68.6K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 75,466 | $58.2K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 71,730 | $55.3K | 0.00% | 00.0% | Unchanged |
| Disciplined Investments, LLC | 55,886 | $43.1K | 0.02% | 00.0% | Unchanged |
| Raymond James Financial Inc | 51,853 | $40.0K | 0.00% | +210.0% | Added |
| Susquehanna International Group, LLP | 49,838 | $38.4K | 0.00% | −54,259−52.1% | Reduced |
| Renaissance Technologies LLC | 41,031 | $31.6K | 0.00% | −16,969−29.3% | Reduced |
| Integrity Alliance, LLC. | 39,524 | $30.5K | 0.00% | −800−2.0% | Reduced |
| Prevail Innovative Wealth Advisors, LLC | 38,306 | $29.5K | 0.01% | 00.0% | Unchanged |
| Highland Capital Management, LLC | 32,454 | $25.0K | 0.00% | 00.0% | Unchanged |
| Americana Partners, LLC | 30,000 | $23.1K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 26,714 | $20.6K | 0.00% | −17,602−39.7% | Reduced |
| Chicago Partners Investment Group LLC | 18,000 | $16.3K | 0.00% | −10,000−35.7% | Reduced |
| Wells Fargo & Company | 21,050 | $16.2K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 20,958 | $16.0K | 0.00% | −1,177−5.3% | Reduced |
| Cubist Systematic Strategies, LLC | 20,508 | $15.8K | 0.00% | +20,508 | New |
| Diversified Portfolios, Inc. | 20,000 | $15.4K | 0.00% | 00.0% | Unchanged |
| Gleason Group, Inc. | 18,018 | $13.9K | 0.00% | 00.0% | Unchanged |
| Centerpoint Advisors, LLC | 15,700 | $12.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 13,223 | $10.2K | 0.00% | +13,223 | New |
| Goldman Sachs Group Inc | 11,044 | $8.52K | 0.00% | +11,044 | New |
| Rockefeller Capital Management L.P. | 9,009 | $6.95K | 0.00% | +9,009 | New |
| Simplex Trading, LLC | 5,997 | $4.00K | 0.00% | +5,997 | New |
| Deutsche Bank AG | 4,000 | $3.08K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 2,208 | $1.70K | 0.00% | −13,884−86.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,192 | $1.69K | 0.00% | +2,192 | New |
| Bank of America Corp | 1,344 | $1.04K | 0.00% | −119−8.1% | Reduced |
| Royal Bank of Canada | 1,496 | $1.00K | 0.00% | +1,496 | New |
| Barclays PLC | 403 | $311 | 0.00% | +350+660.4% | Added |
| SBI Securities Co., Ltd. | 303 | $234 | 0.00% | −339−52.8% | Reduced |
| Allworth Financial LP | 6 | $5 | 0.00% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 0 | $0 | 0.00% | −271,739−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −30,306−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −25,555−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −20,706−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −50−100.0% | Sold out |