Latest Period
Q1 2026
Security Snapshot
ClearSign Technologies Corp - Common Stock (CLIR) Institutional Ownership
CUSIP: 185064102
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
0
Shares (Excl. Options)
0
Price
$0.77
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- Security type / class
- Equity / Common Stock
- Symbol
- CLIR on Nasdaq
- Shares outstanding
- 54,976,358
- Reported price per share
- $0.77
- Price from insider filings
- $0.77
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 0
- Total reported value
- $0
- Share change
- -3,133,724
- Value change
- -$1,744,398
- Number of holders
- 0
Security identity
Issuer context
Latest holder snapshot
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- CLIR - ClearSign Technologies Corp - Common Stock is tracked under CUSIP 185064102.
- 0 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 37 to 0 between Q4 2025 and Q1 2026.
- Reported value moved from $2,479,997 to $0.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 0 institutions filings for Q1 2026.
Security key
185064102
Latest holder period
Q1 2026
13F holders
0
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
CLIR full holder history
ClearSign Technologies Corp SEC filings
ClearSign Technologies Corp company facts
ClearSign Technologies Corp insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 185064102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
CLIR
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PASQUESI JOHN M | 20% | $6,703,762 | 10,989,774 | John M Pasquesi | 14 Feb 2025 | |||
| clirSPV LLC | 4.3% | $1,371,906 | 2,249,027 | HOFFMAN Robert Thurston Sr | 14 Feb 2025 |
As of 31 Mar 2026, 0 institutional investors reported holding 0 shares of ClearSign Technologies Corp - Common Stock (CLIR). This represents 0% of the company’s total 54,976,358 outstanding shares.
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 0 | $0 | -$1,744,398 | $0.77 | 0 |
| 2025 Q4 | 4,456,743 | $2,479,997 | +$114,994 | $0.56 | 37 |
| 2025 Q3 | 4,234,378 | $3,267,120 | -$154,645 | $0.77 | 39 |
| 2025 Q2 | 4,537,069 | $2,469,272 | +$220,824 | $0.56 | 36 |
| 2025 Q1 | 4,103,607 | $3,072,294 | +$547,543 | $0.75 | 35 |
| 2024 Q4 | 3,362,465 | $4,842,052 | +$293,480 | $1.44 | 30 |
| 2024 Q3 | 3,156,679 | $2,682,932 | +$5,564 | $0.85 | 26 |
| 2024 Q2 | 3,157,915 | $2,635,877 | +$193,028 | $0.83 | 27 |
| 2024 Q1 | 2,908,925 | $2,806,448 | +$124,817 | $0.96 | 26 |
| 2023 Q4 | 2,766,798 | $3,071,223 | -$17,036 | $1.11 | 25 |
| 2023 Q3 | 2,783,765 | $3,033,989 | +$142,400 | $1.09 | 27 |
| 2023 Q2 | 2,646,366 | $3,466,522 | +$276,891 | $1.31 | 26 |
| 2023 Q1 | 2,509,708 | $2,002,651 | -$27,012 | $0.80 | 26 |
| 2022 Q4 | 2,554,277 | $1,366,724 | -$62,609 | $0.54 | 29 |
| 2022 Q3 | 2,659,506 | $2,437,000 | +$14,757 | $0.91 | 23 |
| 2022 Q2 | 2,595,982 | $3,141,000 | -$85,066 | $1.21 | 24 |
| 2022 Q1 | 2,641,540 | $4,306,630 | -$81,729 | $1.63 | 24 |
| 2021 Q4 | 2,709,002 | $3,735,000 | -$78,848 | $1.38 | 25 |
| 2021 Q3 | 2,719,171 | $5,477,000 | -$1,130,142 | $2.00 | 32 |
| 2021 Q2 | 2,976,513 | $14,280,000 | +$719,545 | $4.80 | 41 |
| 2021 Q1 | 2,813,428 | $63,403,000 | +$50,340,875 | $5.68 | 33 |
| 2020 Q4 | 2,329,504 | $6,824,000 | +$653,262 | $2.93 | 28 |
| 2020 Q3 | 2,558,551 | $5,780,000 | +$411,126 | $2.26 | 23 |
| 2020 Q2 | 2,380,552 | $4,953,000 | -$1,733,862 | $2.08 | 24 |
| 2020 Q1 | 3,212,993 | $2,314,000 | -$26,707 | $0.72 | 16 |