DOSSIER · 13F Holders · Q2 2026
CLIR

ClearSign Technologies Corporation

24 institutions still hold ClearSign Technologies Corporation as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 185064201·24 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$2M
visible holders
Holders
24
filers reporting
Concentration
24.50%
VANGUARD CAPITAL MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q2 2026

24 institutions reported CLIR in Q2 2026. VANGUARD CAPITAL MANAGEMENT LLC leads at 24.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$387K105K0.00%Q2 2026
02
SIMON QUICK ADVISORS, LLC
CIK 0001692038
$221K60K0.01%Q2 2026
03
Cambridge Investment Research Advisors, Inc.
CIK 0001419186
$193K44K0.00%Q1 2026
04
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$189K51K0.00%Q2 2026
05
Beacon Pointe Advisors, LLC
CIK 0001744317
$100K27K0.00%Q2 2026
06
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$86K23K0.00%Q2 2026
07
HighTower Advisors, LLC
CIK 0001462245
$83K23K0.00%Q2 2026
08
CITADEL ADVISORS LLC
CIK 0001423053
$75K21K0.00%Q2 2026
09
BlackRock, Inc.
CIK 0002012383
$72K20K0.00%Q2 2026
10
DDD Partners, LLC
CIK 0001729673
$44K12K0.00%Q2 2026
11
NORTHERN TRUST CORP
CIK 0000073124· Index
$37K10K0.00%Q2 2026
12
Rockefeller Capital Management L.P.
CIK 0001739439
$30K8K0.00%Q2 2026
13
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
CIK 0001141802
$26K7K0.00%Q2 2026
14
WELLS FARGO & COMPANY/MN
CIK 0000072971
$8K2K0.00%Q2 2026
15
Centerpoint Advisors, LLC
CIK 0001733788
$7K2K0.00%Q1 2026
16
Gleason Group, Inc.
CIK 0001822632
$6K2K0.00%Q3 2026
17
Tower Research Capital LLC (TRC)
CIK 0001533421
$6K2K0.00%Q2 2026
18
Vanguard Global Advisers, LLC
CIK 0001811242· Index
$5K1K0.00%Q2 2026
19
ROYAL BANK OF CANADA
CIK 0001000275
$3K6840.00%Q2 2026
20
DEUTSCHE BANK AG\
CIK 0000948046
$1K4000.00%Q2 2026
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Insiders at ClearSign Technologies Corporation
Digiandomenico Anthony →Saddler Larry Michael →Silva Gil Todd →Basenese Lou →Pasquesi John M →Deller Colin James →Hinds Brent →Maley David M →