SEC 13F Intelligence

CLEARSIGN TECHNOLOGIES CORP

CUSIP 185064102

Clearsign Technologies Corp has 38 institutional holders in Filings Flow’s 13F database, together reporting 4.44M shares worth $2M as of Q4 2025. The largest reported holders are Vanguard Group Inc, Simon Quick Advisors, LLC, and Geode Capital Management, LLC.

Institutional Holders
38
Q4 2025
Reported Value
$2M
Ticker
unmapped
private placement or foreign
Quarters Tracked
8

Ownership Trend

Institutional holders
Q4 ’18: 16Q4 ’18Q1 ’19: 19Q1 ’19Q2 ’19: 17Q2 ’19Q3 ’19: 18Q3 ’19Q2 ’21: 35Q2 ’21Q4 ’21: 21Q4 ’21Q4 ’22: 21Q4 ’22Q4 ’25: 38Q4 ’25filingsflow.com
Total reported value
Q4 ’18: $3MQ4 ’18Q1 ’19: $2MQ1 ’19Q2 ’19: $3MQ2 ’19Q3 ’19: $3MQ3 ’19Q2 ’21: $247MQ2 ’21Q4 ’21: $2MQ4 ’21Q4 ’22: $389,511Q4 ’22Q4 ’25: $2MQ4 ’25filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
SIMON QUICK ADVISORS, LLC$2.2B AUM0.01%$335,411603.1KQ4 2025
Disciplined Investments, LLC$279M AUM0.01%$31,07855.9KQ4 2025
DDD Partners, LLC$1.5B AUM0.00%$66,732120.0KQ4 2025
PREVAIL INNOVATIVE WEALTH ADVISORS, LLC$594M AUM0.00%$21,30238.3KQ4 2025
TWO SIGMA SECURITIES, LLC$861M AUM0.00%$14,90026.8KQ4 2025
Beacon Pointe Advisors, LLC$18.9B AUM0.00%$145,408271.7KQ2 2025OLDER
Diversified Portfolios, Inc.$1.2B AUM0.00%$15,42420.0KQ3 2025OLDER
Gleason Group, Inc.$1.0B AUM0.00%$10,02018.0KQ4 2025
HIGHLAND CAPITAL MANAGEMENT, LLC$1.9B AUM0.00%$18,04832.5KQ4 2025
Americana Partners, LLC$3.9B AUM0.00%$30,58655.0KQ4 2025
INTEGRITY ALLIANCE, LLC.$2.6B AUM0.00%$21,97939.5KQ4 2025
XTX Topco Ltd$5.8B AUM0.00%$16,13529.0KQ4 2025
Chicago Partners Investment Group LLC$4.5B AUM0.00%$12,52818.0KQ4 2025
Tower Research Capital LLC (TRC)$3.8B AUM0.00%$7,67113.8KQ4 2025
Rockefeller Capital Management L.P.$56.4B AUM0.00%$45,16081.2KQ4 2025
HighTower Advisors, LLC$94.2B AUM0.00%$70,518126.8KQ4 2025
Cubist Systematic Strategies, LLC$21.0B AUM0.00%$15,81620.5KQ3 2025OLDER
RENAISSANCE TECHNOLOGIES LLC$63.9B AUM0.00%$43,26577.8KQ4 2025
Creative Planning$147.4B AUM0.00%$75,659136.1KQ4 2025
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$162.4B AUM0.00%$39,88971.7KQ4 2025
Cetera Investment Advisers$94.0B AUM0.00%$11,59320.7KQ2 2025OLDER
GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM0.00%$290,958523.1KQ4 2025
VANGUARD GROUP INC$6.90T AUM0.00%$735,5771.32MQ4 2025
RAYMOND JAMES FINANCIAL INC$324.4B AUM0.00%$28,83251.8KQ4 2025
SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM0.00%$65,873118.4KQ4 2025
TUCKER ASSET MANAGEMENT LLC$343M AUM0.00%$2239Q4 2025
NORTHERN TRUST CORP$756.6B AUM0.00%$41,16374.0KQ4 2025
CITADEL ADVISORS LLC$618.5B AUM0.00%$20,60226.7KQ3 2025OLDER
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM0.00%$13,67425.6KQ2 2025OLDER
SIMPLEX TRADING, LLC$149.1B AUM0.00%$4,0107.2KQ4 2025
WELLS FARGO & COMPANY/MN$530.3B AUM0.00%$11,70621.1KQ4 2025
JANE STREET GROUP, LLC$777.2B AUM0.00%$13,25023.8KQ4 2025
BlackRock, Inc.$5.72T AUM0.00%$110,833199.3KQ4 2025
STATE STREET CORP$2.90T AUM0.00%$49,48789.0KQ4 2025
SBI Securities Co., Ltd.$3.6B AUM0.00%$57103Q4 2025
ROYAL BANK OF CANADA$570.1B AUM0.00%$7,0009.5KQ3 2025OLDER
GOLDMAN SACHS GROUP INC$870.9B AUM0.00%$8,51711.0KQ3 2025OLDER
DEUTSCHE BANK AG\$302.7B AUM0.00%$2,2404.0KQ4 2025
CANTOR FITZGERALD, L. P.$6.8B AUM0.00%$2850Q2 2025OLDER
UBS Group AG$666.3B AUM0.00%$6811.2KQ4 2025
BANK OF AMERICA CORP /DE/$1.37T AUM0.00%$504907Q4 2025
Allworth Financial LP$24.7B AUM0.00%$46Q4 2025
BARCLAYS PLC$416.3B AUM0.00%$3053Q4 2025
CITIGROUP INC$234.5B AUM0.00%$11Q4 2025

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.