May 7
Proxy statement
DEF 14A
Meeting Jun 17, 2021
Proxy statement
CLIR · ClearSign Technologies Corp · Documents
$2.31
-0.12 (-4.74%)
At close · Nov 5
Return incl. dividend (before tax)
Play latest call
Q2 2026 earnings call transcript
Going-concern doubt
— flagged Aug 14, 2026
Substantial doubt about the company's ability to continue as a going concern.
“There can be no assurance that we will be successful in achieving our long term plans, or that such plans, if consummated, will result in profitable operations or enable us to continue in the long term as a going concern.”View the 10-Q filed Aug 14, 2026
Market Cap
$15.73M
Shares
6.81M
Volume · Nov 5
18.28K
Avg daily vol (3M)
19.3K
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The company's filings, earnings calls and investor events, most recent first. Search and read these filings from Claude or ChatGPT with the SEC filings MCP server →
2021
Apr 30
Annual report
10-K/A
Ended Dec 31
Annual report for the period ended Dec 31, 2020
Apr 23
Current report
8-K
Events of Apr 20
Director or officer change, or executive pay
Mar 31
Current report
8-K/A
Events of Mar 4
Director or officer change, or executive pay
Mar 31
Mar 25
Earnings call
Q4 2020 earnings call
Mar 25
Current report
8-K
Events of Mar 23
Financial results
Mar 8
Current report
8-K
Events of Mar 4
Director or officer change, or executive pay
2020
Dec 23
Current report
8-K
Events of Dec 18
Entered into a material agreement
Nov 23
Current report
8-K
Events of Nov 19
Regulation FD disclosure
Nov 13
Quarterly report
10-Q
FY2020 Q3, ended Sep 30
Quarterly report for FY2020 Q3
Revenue $0
Net loss $1.68M
Sep 30
Earnings call
Q3 2020 earnings call
Sep 17
Current report
8-K
Events of Sep 15
Regulation FD disclosure
Aug 21
Current report
8-K
Events of Aug 19
Entered into a material agreement, Other events
Aug 14
Quarterly report
10-Q
FY2020 Q2, ended Jun 30
Quarterly report for FY2020 Q2
Revenue $0
Net loss $1.39M
Jul 13
Current report
8-K
Events of Jul 10
Other events
Jul 1
Current report
8-K
Events of Jun 30
Other events
Jun 30
Earnings call
Q2 2020 earnings call
Jun 22
Current report
8-K
Events of Jun 17
Delisting notice or listing transfer, Shareholder vote results
Jun 18
Current report
8-K
Events of Jun 16
Regulation FD disclosure
May 14
Quarterly report
10-Q
FY2020 Q1, ended Mar 31
Quarterly report for FY2020 Q1
Revenue $0
Net loss $1.96M
Apr 27
Proxy statement
DEF 14A
Meeting Jun 17, 2020
Proxy statement
Apr 21
Current report
8-K
Events of Apr 20
Regulation FD disclosure
Apr 17
Current report
8-K
Events of Apr 15
Director or officer change, or executive pay, Charter or bylaw amendment, or fiscal year change, Other events
Mar 31
Earnings call
Q1 2020 earnings call
Mar 30
Mar 13
Current report
8-K
Events of Mar 12
Financial results
Feb 20
Current report
8-K
Events of Feb 13
Director or officer change, or executive pay, Regulation FD disclosure, Other events
Jan 17
Current report
8-K
Events of Jan 15
Delisting notice or listing transfer
Jan 15
Current report
8-K
Events of Jan 9
Director or officer change, or executive pay
Showing 151–180 of 180 documents