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ClearSign Technologies

39 hedge funds and large institutions have $3.27M invested in ClearSign Technologies in 2025 Q3 according to their latest regulatory filings, with 7 funds opening new positions, 4 increasing their positions, 11 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

40% more first-time investments, than exits

New positions opened: 7 | Existing positions closed: 5

32% more capital invested

Capital invested by funds: $2.47M → $3.27M (+$798K)

5% more funds holding

Funds holding: 3739 (+2)

0.06% less ownership

Funds ownership: 0.87%0.81% (-0.06%)

64% less repeat investments, than reductions

Existing positions increased: 4 | Existing positions reduced: 11

Holders
39
Holders Change
+2
Holders Change %
+5.41%
% of All Funds
0.51%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
7
Increased
4
Reduced
11
Closed
5
Calls
$17K
Puts
Net Calls
+$17K
Net Calls Change
+$16K
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$985K +$65.8K +11,216 +10%
SQA
2
Simon Quick Advisors
New Jersey
$465K
Geode Capital Management
3
Geode Capital Management
Massachusetts
$404K -$17.9K -3,045 -5%
Cambridge Investment Research Advisors
4
Cambridge Investment Research Advisors
Iowa
$342K
BlackRock
5
BlackRock
New York
$154K
Creative Planning
6
Creative Planning
Kansas
$123K +$10.1K +1,720 +12%
HighTower Advisors
7
HighTower Advisors
Illinois
$97.8K -$1.17K -200 -2%
DP
8
DDD Partners
Washington
$88.7K
State Street
9
State Street
Massachusetts
$68.6K
Northern Trust
10
Northern Trust
Illinois
$58.2K
Northwestern Mutual Wealth Management
11
Northwestern Mutual Wealth Management
Wisconsin
$55.3K
DI
12
Disciplined Investments
Oklahoma
$43.1K
Raymond James Financial
13
Raymond James Financial
Florida
$40K +$12 +2 +0%
Susquehanna International Group
14
Susquehanna International Group
Pennsylvania
$38.4K -$31.8K -5,426 -52%
Renaissance Technologies
15
Renaissance Technologies
New York
$31.6K -$9.96K -1,697 -29%
IA
16
Integrity Alliance
Iowa
$30.5K -$470 -80 -2%
PIWA
17
Prevail Innovative Wealth Advisors
Kansas
$29.5K
HCMT
18
Highland Capital Management (Tennessee)
Tennessee
$25K
AP
19
Americana Partners
Texas
$23.1K
Citadel Advisors
20
Citadel Advisors
Florida
$20.6K -$10.3K -1,761 -40%
CPIG
21
Chicago Partners Investment Group
Illinois
$16.3K -$5.87K -1,000 -36%
Wells Fargo
22
Wells Fargo
California
$16.2K
HF
23
HRT Financial
New York
$16K -$693 -118 -5%
CSS
24
Cubist Systematic Strategies
Connecticut
$15.8K +$12K +2,051 New
DPI
25
Diversified Portfolios Inc
Michigan
$15.4K

CLIR Hedge Fund Activity: Q3 2025 in Review

39 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in ClearSign Technologies (CLIR) for Q3 2025, worth a combined $3.27M — up 32% from $2.47M a quarter earlier.

Buyers outnumbered sellers: 7 funds opened new CLIR positions and 5 closed out — a net gain of 2 holders — while 4 added to existing stakes and 11 trimmed.

The largest buyer was Vanguard Group, adding an estimated $65.8K. The largest seller was Beacon Pointe Advisors, exiting entirely with an estimated $145K sold.

  • 39 institutional investors held ClearSign Technologies (CLIR) as of Q3 2025, up from 37 in Q2 2025.
  • Funds reported $3.27M of ClearSign Technologies stock for Q3 2025, up 32% quarter-over-quarter.
  • 7 funds opened new ClearSign Technologies positions in Q3 2025 and 5 closed out, a net change of +2 holders.
  • The largest ClearSign Technologies buyer in Q3 2025 was Vanguard Group, an estimated $65.8K added.
  • The largest ClearSign Technologies seller in Q3 2025 was Beacon Pointe Advisors, an estimated $145K sold.

Based on aggregated 13F filings for Q3 2025.