https://www.developersdigest.tech/markets/clir/filings Latest company filings for ClearSign Technologies Corp (CLIR) - annual reports, quarterly reports, major events, and insider trades, newest first. en Sat, 11 Jul 2026 07:42:34 GMT https://www.sec.gov/Archives/edgar/data/1434524/000110465926065175/tm2615171d1_8k.htm 0001104659-26-065175 Thu, 21 May 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926061940/clir-20260331x10q.htm 0001104659-26-061940 Fri, 15 May 2026 12:00:00 GMT 10-Q https://www.sec.gov/Archives/edgar/data/1434524/000110465926050341/clir-20251231xars.pdf 0001104659-26-050341 Tue, 28 Apr 2026 12:00:00 GMT ARS https://www.sec.gov/Archives/edgar/data/1434524/000110465926050320/clir-20260424xdefa14a.htm 0001104659-26-050320 Tue, 28 Apr 2026 12:00:00 GMT DEFA14A https://www.sec.gov/Archives/edgar/data/1434524/000110465926049883/clir-20260608xdef14a.htm 0001104659-26-049883 Tue, 28 Apr 2026 12:00:00 GMT DEF 14A https://www.sec.gov/Archives/edgar/data/1434524/000110465926049608/xslF345X06/tm2612853-2_4aseq1.xml 0001104659-26-049608 Mon, 27 Apr 2026 12:00:00 GMT 4/A https://www.sec.gov/Archives/edgar/data/1434524/000110465926049607/xslF345X06/tm2612853-1_4seq1.xml 0001104659-26-049607 Mon, 27 Apr 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926042017/tm2611530d1_8k.htm 0001104659-26-042017 Fri, 10 Apr 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926039311/xslF345X06/tm2610943-3_4seq1.xml 0001104659-26-039311 Thu, 02 Apr 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926039310/xslF345X06/tm2610943-2_4seq1.xml 0001104659-26-039310 Thu, 02 Apr 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926039309/xslF345X06/tm2610943-1_4seq1.xml 0001104659-26-039309 Thu, 02 Apr 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926037699/clir-20251231x10k.htm 0001104659-26-037699 Tue, 31 Mar 2026 12:00:00 GMT 10-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926036808/tm2610637d1_8k.htm 0001104659-26-036808 Mon, 30 Mar 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926032244/xslF345X06/tm269407-1_4seq1.xml 0001104659-26-032244 Thu, 19 Mar 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926025867/tm268062d1_8k.htm 0001104659-26-025867 Tue, 10 Mar 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926023536/tm267543d1_8k.htm 0001104659-26-023536 Wed, 04 Mar 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926022403/xslF345X05/tm267759-2_4seq1.xml 0001104659-26-022403 Mon, 02 Mar 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926022401/xslF345X05/tm267759-1_4seq1.xml 0001104659-26-022401 Mon, 02 Mar 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926019768/tm267336d1_8k.htm 0001104659-26-019768 Wed, 25 Feb 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465926019278/xslF345X05/tm267197-1_4seq1.xml 0001104659-26-019278 Tue, 24 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926010395/xslF345X05/tm265243-1_4seq1.xml 0001104659-26-010395 Wed, 04 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465926009202/clir-20260226xdef14a.htm 0001104659-26-009202 Mon, 02 Feb 2026 12:00:00 GMT DEF 14A https://www.sec.gov/Archives/edgar/data/1434524/000110465926006295/clir-20260226xpre14a.htm 0001104659-26-006295 Fri, 23 Jan 2026 12:00:00 GMT PRE 14A https://www.sec.gov/Archives/edgar/data/1434524/000110465926001752/tm262320d1_8k.htm 0001104659-26-001752 Wed, 07 Jan 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925119321/tm2532891d1_8k.htm 0001104659-25-119321 Mon, 08 Dec 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925114991/tm2531893d1_8k.htm 0001104659-25-114991 Fri, 21 Nov 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925113241/tm2531444d1_8k.htm 0001104659-25-113241 Mon, 17 Nov 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925112472/clir-20250930x10q.htm 0001104659-25-112472 Fri, 14 Nov 2025 12:00:00 GMT 10-Q https://www.sec.gov/Archives/edgar/data/1434524/000110465925096764/xslF345X05/tm2527975-2_4seq1.xml 0001104659-25-096764 Fri, 03 Oct 2025 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465925096763/xslF345X05/tm2527975-1_4seq1.xml 0001104659-25-096763 Fri, 03 Oct 2025 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1434524/000110465925095017/tm2527606d1_8k.htm 0001104659-25-095017 Tue, 30 Sep 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925085648/tm2524675d1_8k.htm 0001104659-25-085648 Fri, 29 Aug 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925081941/tm2523685d3_424b4.htm 0001104659-25-081941 Fri, 22 Aug 2025 12:00:00 GMT 424B4 https://www.sec.gov/Archives/edgar/data/1434524/999999999525002705/xslEFFECTX01/primary_doc.xml 9999999995-25-002705 Thu, 21 Aug 2025 12:00:00 GMT EFFECT https://www.sec.gov/Archives/edgar/data/1434524/000110465925080995/filename1.htm 0001104659-25-080995 Wed, 20 Aug 2025 12:00:00 GMT CORRESP https://www.sec.gov/Archives/edgar/data/1434524/000110465925080929/tm2523685d1_s1a.htm 0001104659-25-080929 Wed, 20 Aug 2025 12:00:00 GMT S-1/A https://www.sec.gov/Archives/edgar/data/1434524/000110465925079277/tm2523643d1_8k.htm 0001104659-25-079277 Fri, 15 Aug 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000155837025011555/clir-20250630x10q.htm 0001558370-25-011555 Thu, 14 Aug 2025 12:00:00 GMT 10-Q https://www.sec.gov/Archives/edgar/data/1434524/000000000025008601/filename1.pdf 0000000000-25-008601 Thu, 14 Aug 2025 12:00:00 GMT UPLOAD https://www.sec.gov/Archives/edgar/data/1434524/000110465925076944/tm2523037d1_s1.htm 0001104659-25-076944 Tue, 12 Aug 2025 12:00:00 GMT S-1 https://www.sec.gov/Archives/edgar/data/1434524/000110465925075708/tm2522983d1_8k.htm 0001104659-25-075708 Fri, 08 Aug 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/999999999525002374/xslEFFECTX01/primary_doc.xml 9999999995-25-002374 Mon, 28 Jul 2025 12:00:00 GMT EFFECT https://www.sec.gov/Archives/edgar/data/1434524/000110465925071166/tm2521893d1_8k.htm 0001104659-25-071166 Mon, 28 Jul 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925070368/filename1.htm 0001104659-25-070368 Thu, 24 Jul 2025 12:00:00 GMT CORRESP https://www.sec.gov/Archives/edgar/data/1434524/000000000025007802/filename1.pdf 0000000000-25-007802 Thu, 24 Jul 2025 12:00:00 GMT UPLOAD https://www.sec.gov/Archives/edgar/data/1434524/000110465925068797/tm2521146d1_8k.htm 0001104659-25-068797 Fri, 18 Jul 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925068740/tm2520917d1_s3.htm 0001104659-25-068740 Thu, 17 Jul 2025 12:00:00 GMT S-3 https://www.sec.gov/Archives/edgar/data/1434524/000110465925067457/tm2520697d2_defa14a.htm 0001104659-25-067457 Fri, 11 Jul 2025 12:00:00 GMT DEFA14A https://www.sec.gov/Archives/edgar/data/1434524/000110465925067452/tm2520697d1_8k.htm 0001104659-25-067452 Fri, 11 Jul 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1434524/000110465925065885/xslF345X05/tm2519904-5_4seq1.xml 0001104659-25-065885 Thu, 03 Jul 2025 12:00:00 GMT 4