ClearSign Technologies Corp - Common Stock (CLIR)

CUSIP: 185064102

Q1 2025 13F Holders as of 31 Mar 2025

Type / Class
Equity / Common Stock
Shares outstanding
54,976,358
Total 13F shares
4,103,607
Share change
+741,142
Total reported value
$3,072,294
Price per share
$0.75
Number of holders
35
Value change
+$547,543
Number of buys
17
Number of sells
6

Security key

185064102

Report period

Q1 2025

Institutions

35

Top holders

10

Top shareholders of CLIR - ClearSign Technologies Corp - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
Robert T. Hoffman Sr.
3/4/5
10%+ Owner
mixed-class rows
24,795,027
mixed-class rows
$17,451,117 24 Jun 2024
John M. Pasquesi
3/4/5 13D/G
10%+ Owner
20%
from 13D/G
8,434,774
$6,742,758 14 Feb 2025
VANGUARD GROUP INC
13F
Company
2%
1,115,355
$1,606,111 31 Dec 2024
13F
clirSPV LLC
13D/G
HOFFMAN Robert Thurston Sr
4.3%
2,249,027
$1,371,906 $0 14 Feb 2025
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
0.98%
536,995
$773,448 31 Dec 2024
13F
Cambridge Investment Research Advisors, Inc.
13F
Company
0.82%
453,000
$652,000 31 Dec 2024
13F
Creative Planning
13F
Company
0.38%
210,286
$302,812 31 Dec 2024
13F
BlackRock, Inc.
13F
Company
0.36%
199,304
$286,998 31 Dec 2024
13F
HighTower Advisors, LLC
13F
Company
0.23%
126,809
$182,605 31 Dec 2024
13F
DDD Partners, LLC
13F
Company
0.19%
105,000
$151,200 31 Dec 2024
13F
Gary J. DiElsi
3/4/5
Director
class O/S missing
115,993
$129,912 02 Oct 2023
STATE STREET CORP
13F
Company
0.16%
88,989
$128,144 31 Dec 2024
13F
NORTHERN TRUST CORP
13F
Company
0.14%
75,466
$108,671 31 Dec 2024
13F
RENAISSANCE TECHNOLOGIES LLC
13F
Company
0.11%
58,500
$84,240 31 Dec 2024
13F
RAYMOND JAMES FINANCIAL INC
13F
Company
0.09%
51,832
$74,638 31 Dec 2024
13F
Disciplined Investments, LLC
13F
Company
0.09%
47,148
$67,893 31 Dec 2024
13F
GOLDMAN SACHS GROUP INC
13F
Company
0.08%
42,649
$61,415 31 Dec 2024
13F
PREVAIL INNOVATIVE WEALTH ADVISORS, LLC
13F
Company
0.07%
38,306
$55,161 31 Dec 2024
13F
CITADEL ADVISORS LLC
13F
Company
0.06%
34,134
$49,153 31 Dec 2024
13F
Susanne Meline
3/4/5
Director
mixed-class rows
133,870
mixed-class rows
$48,014 03 Jan 2023
HIGHLAND CAPITAL MANAGEMENT, LLC
13F
Company
0.06%
32,454
$46,734 31 Dec 2024
13F
Americana Partners, LLC
13F
Company
0.05%
30,000
$43,200 31 Dec 2024
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
0.05%
25,555
$36,799 31 Dec 2024
13F
UBS Group AG
13F
Company
0.04%
23,829
$34,314 31 Dec 2024
13F
WELLS FARGO & COMPANY/MN
13F
Company
0.04%
21,050
$30,312 31 Dec 2024
13F
XTX Topco Ltd
13F
Company
0.04%
19,713
$28,387 31 Dec 2024
13F
Centerpoint Advisors, LLC
13F
Company
0.03%
15,700
$23,000 31 Dec 2024
13F
Bruce A. Pate
3/4/5
Director
mixed-class rows
84,803
mixed-class rows
$16,019 01 Jul 2022
DEUTSCHE BANK AG\
13F
Company
0.01%
4,000
$5,760 31 Dec 2024
13F
SIMPLEX TRADING, LLC
13F
Company
0.01%
3,573
$5,000 31 Dec 2024
13F
Tower Research Capital LLC (TRC)
13F
Company
0%
1,639
$2,360 31 Dec 2024
13F
SBI Securities Co., Ltd.
13F
Company
0%
642
$924 31 Dec 2024
13F
BANK OF AMERICA CORP /DE/
13F
Company
0%
414
$596 31 Dec 2024
13F
JPMORGAN CHASE & CO
13F
Company
0%
94
$135 31 Dec 2024
13F
CITIGROUP INC
13F
Company
0%
23
$33 31 Dec 2024
13F
Allworth Financial LP
13F
Company
0%
6
$9 31 Dec 2024
13F

Institutional Holders of ClearSign Technologies Corp - Common Stock (CLIR) as of Q1 2025

As of 31 Mar 2025, ClearSign Technologies Corp - Common Stock (CLIR) was held by 35 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 4,103,607 shares. The largest 10 holders included VANGUARD GROUP INC, SIMON QUICK ADVISORS, LLC, GEODE CAPITAL MANAGEMENT, LLC, Cambridge Investment Research Advisors, Inc., BlackRock, Inc., Creative Planning, HighTower Advisors, LLC, DDD Partners, LLC, STATE STREET CORP, and NORTHERN TRUST CORP. This page lists 36 institutional shareholders reporting positions in this security for the Q1 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q1 2025 vs Q4 2024 Across Filers

Q4 2024 holders
30
Q1 2025 holders
35
Holder diff
5
Investor Q4 2024 Shares Q1 2025 Shares Share Diff Share Chg % Q4 2024 Value $ Q1 2025 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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