CLIR
ClearSign Technologies Corp
Industrial Instruments For Measurement, Display, and ControlNasdaqNon-accelerated filer<br>Smaller reporting company
Total Trades
3
Buys
3
Sells
0
Largest Trade
$1M+
Insiders
2
Institutional Funds
29
Inst. Value
$1M+
Activist Filings
4
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| HOFFMAN Robert Thurston Sr | 10% Owner | BUY | $1M+ | 3.4M | $0.91 | Jun 27, 2024 |
| HOFFMAN Robert Thurston Sr | Director | BUY | $1M+ | 1.6M | $1.11 | Jul 13, 2022 |
| Pate Bruce Alan | Director | BUY | $50K–$100K | 45K | $1.12 | Jun 16, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 29 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 607K | $1M+ | SH |
| SIMON QUICK ADVISORS, LLC | 603K | $100K–$500K | SH |
| Cambridge Investment Research Advisors, Inc. | 443K | $100K–$500K | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 430K | $100K–$500K | SH |
| VANGUARD GROUP INC | 235K | $100K–$500K | SH |
| BlackRock, Inc. | 199K | $100K–$500K | SH |
| HighTower Advisors, LLC | 127K | $50K–$100K | SH |
| DDD Partners, LLC | 120K | $50K–$100K | SH |
| STATE STREET CORP | 89K | $15K–$50K | SH |
| RENAISSANCE TECHNOLOGIES LLC | 78K | $15K–$50K | SH |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 72K | $15K–$50K | SH |
| Disciplined Investments, LLC | 56K | $15K–$50K | SH |
| Americana Partners, LLC | 55K | $15K–$50K | SH |
| INTEGRITY ALLIANCE, LLC. | 40K | $15K–$50K | SH |
| PREVAIL INNOVATIVE WEALTH ADVISORS, LLC | 38K | $15K–$50K | SH |
| HIGHLAND CAPITAL MANAGEMENT, LLC | 32K | $15K–$50K | SH |
| Chicago Partners Investment Group LLC | 18K | $1K–$15K | SH |
| WELLS FARGO & COMPANY/MN | 21K | $1K–$15K | SH |
| Gleason Group, Inc. | 18K | $1K–$15K | SH |
| Centerpoint Advisors, LLC | 16K | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Apr 9, 2025
20.0%
11.0M shares
SC 13D/A · Feb 19, 2025
3.3%
1.7M shares
SC 13D/A · Jun 26, 2024
18.9%
9.5M shares
SC 13D/A · Jul 16, 2022
19.7%
7.6M shares