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CIK 0001434524 · Non-accelerated filer<br>Smaller reporting company

ClearSign Technologies Corp

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Ticker
CLIR
Exchange
Nasdaq
Industry
Industrial Instruments For Measurement, Display, and Control
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
(918) 500-7312
Business address
8023 E. 63RD PLACE, SUITE 101, TULSA, OK, 74133
Former names
CLEARSIGN COMBUSTION CORP
  1. 10-Q Report Quarterly Report
  2. EFFECT Other Notice of Effectiveness
  3. CORRESP Other Correspondence Between Filers and SEC Staff
  4. 3 Insider Initial Statement of Ownership
  5. 8-K Event Executive or director change
  6. S-3/A Offering Registration Statement
  7. CORRESP Other Correspondence Between Filers and SEC Staff
  8. SC 13D/A Stake Beneficial Ownership Report
  9. UPLOAD Other SEC-generated Letter
  10. 4 Open-market buy Director bought 1,591,594 shares at $1.11 ($1,766,669)
  11. 4 Derivatives Options or other derivatives
  12. 4 Derivatives Options or other derivatives
  13. 4 Derivatives Options or other derivatives
  14. 4 Derivatives Options or other derivatives
  15. S-3 Offering Registration Statement
  16. 4 Open-market buy Director bought 45,000 shares at $1.12 ($50,400)
  17. 8-K Event Results of operations · Shareholder vote results · Regulation FD disclosure
  18. 8-K Event Other events
  19. 8-K Event Material agreement · Other events
  20. 424B5 Offering Prospectus

Page 13 of 40 · 794 filings