ClearSign Technologies Corp

Nasdaq:CLIR

Industrial Instruments For Measurement, Display, and Control·TULSA, OK

CEO

Deller Colin James

CFO

Hinds Brent

Financials

20 shown

Type	Period	Ended	Filed
10-Q	Q3 2025	9/30/25	11/14/25	→
10-Q	Q2 2025	6/30/25	8/14/25	→
10-K/A	FY 2024	12/31/24	5/28/25	→
10-Q	Q1 2025	3/31/25	5/15/25	→
10-K	FY 2024	12/31/24	3/31/25	→
10-Q	Q3 2024	9/30/24	11/14/24	→
↓

Earnings Releases (8-K)

23 shown

Filed	Period
2/25/26	Q1 FY2026	→
1/7/26	Q4 FY2026	→
11/21/25	Q4 FY2025	→
8/15/25	Q3 FY2025	→
5/23/25	Q2 FY2025	→
4/4/25	Q1 FY2025	→
↓

News (8-K)

57 shown

Filed	Type	Description
3/4/26	Vote	Submission of Matters to a Vote of Security Holders	→
12/8/25	Reg FD	Regulation FD Disclosure	→
11/17/25	Other	Amendments to Articles of Incorporation or Bylaws	→
9/30/25	Delisting	Notice of Delisting or Failure to Satisfy a Continued Listing Rule	→
8/29/25	Other	Other Events	→
8/8/25	Delisting	Notice of Delisting or Failure to Satisfy a Continued Listing Rule	→
↓

Prospectuses & Registrations

40 shown

Filed	Form	Description
8/22/25	424B4	424B4	→
8/20/25	S-1/A	FORM S-1/A	→
8/12/25	S-1	S-1	→
7/17/25	S-3	S-3	→
6/13/25	ARS	ARS	→
3/31/25	S-8	S-8	→
↓

Filing History(754 filings)

TypeDateAccessionPeriodSize

8-K

Mar 4, 2026

0001104659-26-023536FORM 8-K

Feb 26, 2026

197.4 KB

Mar 2, 2026

0001104659-26-022403OWNERSHIP DOCUMENT

Feb 26, 2026

6.9 KB

Mar 2, 2026

0001104659-26-022401OWNERSHIP DOCUMENT

Feb 26, 2026

9.4 KB

8-K

Feb 25, 2026

0001104659-26-019768FORM 8-K

Feb 24, 2026

300.6 KB

Feb 24, 2026

0001104659-26-019278OWNERSHIP DOCUMENT

Feb 20, 2026

15.5 KB

Feb 4, 2026

0001104659-26-010395OWNERSHIP DOCUMENT

Feb 2, 2026

9.3 KB

DEF 14A

Feb 2, 2026

0001104659-26-009202DEF 14A

Feb 26, 2026

538.5 KB

PRE 14A

Jan 23, 2026

0001104659-26-006295PRE 14A

Feb 26, 2026

539.1 KB

8-K

Jan 7, 2026

0001104659-26-001752FORM 8-K

Jan 7, 2026

214.5 KB

8-K

Dec 8, 2025

0001104659-25-119321FORM 8-K

Dec 8, 2025

185.2 KB

8-K

Nov 21, 2025

0001104659-25-114991FORM 8-K

Nov 19, 2025

384.0 KB

8-K

Nov 17, 2025

0001104659-25-113241FORM 8-K

Nov 11, 2025

739.5 KB

10-Q

Nov 14, 2025

0001104659-25-11247210-Q

Sep 30, 2025

6.3 MB

Oct 3, 2025

0001104659-25-096764OWNERSHIP DOCUMENT

Oct 1, 2025

5.9 KB

Oct 3, 2025

0001104659-25-096763OWNERSHIP DOCUMENT

Oct 1, 2025

5.9 KB

8-K

Sep 30, 2025

0001104659-25-095017FORM 8-K

Sep 30, 2025

190.8 KB

8-K

Aug 29, 2025

0001104659-25-085648FORM 8-K

Aug 26, 2025

186.7 KB

424B4

Aug 22, 2025

0001104659-25-081941424B4

—

131.2 KB

EFFECT

Aug 21, 2025

9999999995-25-002705

—

1.8 KB

CORRESP

Aug 20, 2025

0001104659-25-080995

—

16.5 KB

S-1/A

Aug 20, 2025

0001104659-25-080929FORM S-1/A

—

244.5 KB

8-K

Aug 15, 2025

0001104659-25-079277FORM 8-K

Aug 14, 2025

321.2 KB

UPLOAD

Aug 14, 2025

0000000000-25-008601

—

39.4 KB

10-Q

Aug 14, 2025

0001558370-25-01155510-Q

Jun 30, 2025

6.1 MB

S-1

Aug 12, 2025

0001104659-25-076944FORM S-1

—

410.2 KB

25 filings shown

ClearSign Technologies Corp

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Filing History(754 filings)

Proxies

Ownership

Other Filings

Filed	Form	Description
2/2/26	DEF 14A	DEF 14A	→
1/23/26	PRE 14A	PRE 14A	→
7/11/25	DEFA14A	DEFA14A	→
6/13/25	DEFA14A	DEFA14A	→
6/13/25	DEF 14A	DEF 14A	→
5/29/25	PREC14A	PREC14A	→
↓

Filed	Form	Description
3/2/26	4	OWNERSHIP DOCUMENT	→
3/2/26	4	OWNERSHIP DOCUMENT	→
2/24/26	4	OWNERSHIP DOCUMENT	→
2/4/26	4	OWNERSHIP DOCUMENT	→
10/3/25	4	OWNERSHIP DOCUMENT	→
10/3/25	4	OWNERSHIP DOCUMENT	→
↓

Filed	Form	Description
8/21/25	EFFECT	EFFECT	→
7/28/25	EFFECT	EFFECT	→
4/9/25	SCHEDULE 13G	SCHEDULE 13G	→
2/19/25	SCHEDULE 13D/A	SCHEDULE 13D/A	→
7/12/24	EFFECT	EFFECT	→
7/9/24	D	D	→
↓