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 $1.71M in total; no superinvestor holds it.
Key figures
- Insider buysLast 90 days, $1.77M in total
- 1
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +4 vs. previous quarter
- 24
- 13F valueReported value at the end of Q2 2026
- $1.71M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding CLIR, Q2 2026
No superinvestor reported holding CLIR at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by ClearSign Technologies Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 24, 2026 (view filing)4:46 PM ET | Jul 22 | 2 days | Pasquesi John M10% Owner | PPurchase | +500.0K | $3.54 | +$1.77M | +59.3%1.34M after | |
| Apr 27, 2026 (view filing) | Apr 23 | 4 days | Silva Gil ToddDirector | PPurchase | +2.00K | $5.29 | +$10.6K | +50.0%6.00K after | 2 lots |
| Mar 19, 2026 (view filing) | Mar 16-17 | 3 daysLate | Silva Gil ToddDirector | PPurchase | +4.00K | $4.28 | +$17.1K | New position4.00K after | 2 lots |
| Jun 26, 2024 (view filing)8:04 PM ET | Jun 24 | 2 days | clirSPV LLC and 3 others10% Owner | PPurchase | +3.35M | $0.91 | +$3.05M | +54.1%9.54M after | |
| Jun 26, 2024 (view filing)8:04 PM ET | Jun 24 | 2 days | clirSPV LLC and 3 others10% Owner | PPurchase | +8.38M | $0.1542 | +$1.29M | –1.34M after | Derivative2 lots |
| Jul 13, 2022 (view filing)7:45 AM ET | Jul 8 | 5 daysLate | HOFFMAN Robert Thurston Sr and 3 othersDirector, 10% Owner | PPurchaseCommon Stock (CLIR) | +1.59M | $1.11 | +$1.77M | New position110.5K after | 2 lots |
| Jul 13, 2022 (view filing)7:45 AM ET | Jul 8 | 5 daysLate | HOFFMAN Robert Thurston Sr and 3 othersDirector, 10% Owner | PPurchaseCommon Stock (CLIR) | 0 | – | $0 | 0.0%13.2K after | |
| Jun 16, 2022 (view filing) | Jun 14 | 2 days | Pate Bruce AlanDirector | PPurchase | +45.0K | $1.12 | +$50.4K | +42.9%150.0K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in ClearSign Technologies Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 105,429 | $386.9K | 0.00% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 88,600 | $326.0K | 0.00% | +44,300+100.0% | Added |
| Simon Quick Advisors, LLC | 60,314 | $221.4K | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 51,457 | $188.9K | 0.00% | −6,226−10.8% | Reduced |
| Beacon Pointe Advisors, LLC | 27,173 | $99.7K | 0.00% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 23,460 | $86.1K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 22,662 | $83.2K | 0.00% | +9,982+78.7% | Added |
| Citadel Advisors LLC | 20,565 | $75.5K | 0.00% | +20,565 | New |
| BlackRock, Inc. | 19,503 | $71.6K | 0.00% | 00.0% | Unchanged |
| DDD Partners, LLC | 12,000 | $44.0K | 0.00% | 00.0% | Unchanged |