Companies: 10,795·Total market cap: $144.5T
ClearSign Technologies Corporation

ClearSign Technologies Corporation

CLIRNASDAQIndustrials● Active
$4.11
+$0.17(+4.31%)
Market Cap$25442585
P/E Ratio—
52W High$11.2
52W Low$3.24
SEC Filings

ClearSign Technologies Corporation (CLIR) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001434524 · CLIR · NASDAQ · as of Jun 8, 2026

Filing snapshot

773
Total Filings
8-K
Latest Form
2026-06-01
Most Recent
2012
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0001434524 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-31
Fiscal Year End
Mar 31, 2026
Accession No.
0001104659-26-037699
Primary Document
clir-20251231x10k.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0001434524 · Accession 0001104659-26-037699

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-15
View 10-Q on SEC
8-KCurrent Report
FORM 8-K
2026-06-01Material Event
View 8-K on SEC
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
8-KCurrent Report
FORM 8-K
2026-06-01
View
424B5424B5
424B5
2026-06-01
View
424B5424B5
424B5
2026-05-28
View
8-KCurrent Report
FORM 8-K
2026-05-28
View
8-KCurrent Report
FORM 8-K
2026-05-21
View
10-QQuarterly Report
10-Q
2026-05-15
View
ARSARS
ARS
2026-04-28
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-28
View
DEF 14AProxy Statement
DEF 14A
2026-04-28
View
8-KCurrent Report
FORM 8-K
2026-04-10
View
10-KAnnual Report
10-K
2026-03-31
View
8-KCurrent Report
FORM 8-K
2026-03-30
View
8-KCurrent Report
FORM 8-K
2026-03-10
View
8-KCurrent Report
FORM 8-K
2026-03-04
View
8-KCurrent Report
FORM 8-K
2026-02-25
View
Showing 1–15 of 466 filingsForm 4 / 144 hidden· 773 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001434524  |  Exchange: NASDAQ · Industrials

ClearSign Technologies Corporation (NASDAQ: CLIR) has submitted 773 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2012. As a Industrials sector company with CIK 0001434524, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is ClearSign Technologies Corporation's most comprehensive regulatory disclosure. The most recent ClearSign Technologies Corporation 10-K was filed on 2026-03-31 for fiscal year ending 2026. Historical CLIR 10-K annual reports are available from 2008 through 2026.

Investors researching ClearSign Technologies Corporation SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
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Frequently Asked Questions

CLIR SEC Filings · 8 questions

ClearSign Technologies Corporation (CLIR) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 773 filings and access original documents at no cost. ClearSign Technologies Corporation's CIK is 0001434524.

CLIR SEC filingsClearSign Technologies Corporation SEC documentsfind CLIR 10-K