Security key
185064102
ClearSign Technologies Corp - Common Stock (CLIR)
CUSIP: 185064102
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 4,234,378
- Total 13F value
- $3,267,120
- Share change
- -302,744
- SEC-reported price per share
- $0.77
- Number of holders
- 39
- Value change
- -$154,645
- Number of buys
- 11
- Number of sells
- 16
- Shares outstanding
- 6,859,181
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
39
Top holders
10
CLIR full security history
Ownership snapshot
Full 13F holder table
ClearSign Technologies Corp SEC filings
ClearSign Technologies Corp company facts
Broader feeds
Ownership snapshot
Top reported holders of CLIR - ClearSign Technologies Corp - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
clirSPV LLC
Disclosed value leader
clirSPV LLC
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
13F
Lead comparable stake: 4.3%
13D/G row: clirSPV LLC
Showing 1-6 of 15 holder rows.
Quick read
clirSPV LLC leads the comparable SEC ownership view at 4.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens clirSPV LLC's linked filing trail.
Comparable ownership
Top 5
clirSPV LLC
4.3%
VANGUARD GROUP INC
17%
SIMON QUICK ADVISORS, LLC
8.8%
GEODE CAPITAL MANAGEMENT, LLC
8.1%
Cambridge Investment Research Adv...
6.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| clirSPV LLC |
13D/G
HOFFMAN Robert Thurston Sr
|
4.3%
|
$1,371,906
2,249,027 shares
|
$0 | 14 Feb 2025 |
| VANGUARD GROUP INC |
13F
Company
|
17%
|
$623,499
1,165,417 shares
|
— | 30 Jun 2025 |
| SIMON QUICK ADVISORS, LLC |
13F
Company
|
8.8%
|
$337,703
603,149 shares
|
— | 30 Jun 2025 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
8.1%
|
$296,325
553,675 shares
|
— | 30 Jun 2025 |
| Cambridge Investment Research Advisors, Inc. |
13F
Company
|
6.5%
|
$248,000
443,000 shares
|
— | 30 Jun 2025 |
| Beacon Pointe Advisors, LLC |
13F
Company
|
4%
|
$145,408
271,739 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
39
Shares
4,234,378
Rows available
39
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
36
Q3 2025 holders
39
Holder diff
3
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|