Clearsign TechnologiesCLIR
13F holders, Q2 2026 (June 30)24holders +4
5new positions
1sold out
1famous investor
$3.67avg. 13F price*
At the end of Q2 2026, 24 institutions reported holding Clearsign Technologies Corp. (CLIR) in their 13F filings, up 4 from Q1 2026. 5 opened new positions and 1 sold out. The largest holders were Vanguard Capital Management LLC ($387K), Simon Quick Advisors, LLC ($221K) and Geode Capital Management, LLC ($189K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Clearsign Technologies Corp.
- CUSIP
- 185064201
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $116K |
| Exits | 1 | $54K |
All 13F filers, Q1 2026 → Q2 2026: 41,918 shares bought and 18,581 shares sold, net +23,337 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 24 holders
| Vanguard Capital Management LLC | 0.00% | No change | 105,429 | $387K |
| Simon Quick Advisors, LLC | 0.01% | No change | 60,314 | $221K |
| Geode Capital Management, LLC | 0.00% | Reduce -10.8% | 51,457 | $189K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | No change | 44,300 | $163K |
| Beacon Pointe Advisors, LLC | 0.00% | No change | 27,173 | $100K |
| Vanguard Fiduciary Trust Co. | 0.00% | No change | 23,460 | $86K |
| HighTower Advisors, LLC | 0.00% | Add +78.7% | 22,662 | $83K |
| Citadel Advisors | 0.00% | New | 20,565 | $75K |
| BlackRock, Inc. | 0.00% | No change | 19,503 | $72K |
| DDD Partners, LLC | 0.00% | No change | 12,000 | $44K |
| Northern Trust Corp. | 0.00% | New | 10,080 | $37K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 8,120 | $30K |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 7,172 | $26K |
| Wells Fargo & Company | 0.00% | No change | 2,125 | $8K |
| Gleason Group, Inc. | 0.00% | No change | 1,802 | $7K |
| Centerpoint Advisors, LLC | 0.00% | No change | 1,560 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +45.3% | 1,518 | $6K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 1,350 | $5K |
| Royal Bank of Canada | 0.00% | New | 684 | $3K |
| Deutsche Bank AG | 0.00% | No change | 400 | $1K |
| UBS Group AG | 0.00% | New | 100 | $367 |
| Barclays PLC | 0.00% | New | 33 | $121 |
| SBI Securities Co., Ltd. | 0.00% | Add +9.1% | 12 | $44 |
| Group One Trading LLC | 0.00% | No change | 9 | $33 |
"% of holder's portfolio" is CLIR's weight in each manager's 13F, not the share of Clearsign Technologies Corp. the manager owns.