Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-25-053133
Filing Date
2025-05-27
Accepted
2025-05-27 19:06:12
Documents
1
Period of Report
2025-05-22

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT tm2516240-3_4seq1.html 4  
1 OWNERSHIP DOCUMENT tm2516240-3_4seq1.xml 4 4534
  Complete submission text file 0001104659-25-053133.txt   6107
Mailing Address 8023 E. 63RD PLACE, SUITE 101 TULSA OK 74133
Business Address 8023 E. 63RD PLACE, SUITE 101 TULSA OK 74133 (918) 236-6461
ClearSign Technologies Corp (Issuer) CIK: 0001434524 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 3823 Industrial Instruments For Measurement, Display, and Control
(CF Office: 08 Industrial Applications and Services)

Mailing Address 3600 GREEN COURT, SUITE 350 ANN ARBOR MI 48105
Business Address
Basenese Lou (Reporting) CIK: 0001809482 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-35521 | Film No.: 25990425