Companies: 10,795·Total market cap: $144.5T
Cleantech Biofuels, Inc.

Cleantech Biofuels, Inc.

CLTHOTCBasic Materials● Active
$0.00
+$0.00(+0.00%)
Market Cap$10073
P/E Ratio—
52W High$0.0001
52W Low$0.0001
SEC Filings

Cleantech Biofuels, Inc. (CLTH) 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 0001411036 · CLTH · OTC · as of Jun 9, 2026

Filing snapshot

119
Total Filings
8-K/A
Latest Form
2020-03-30
Most Recent
2008
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0001411036 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2019-04-01
Fiscal Year End
Apr 1, 2019
Accession No.
0001437749-19-006150
Primary Document
clth20181231_10k.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0001411036 · Accession 0001437749-19-006150

Latest Key Filings

10-QQuarterly Report
FORM 10-Q
2019-11-13
View 10-Q on SEC
8-KCurrent Report
FORM 8-K/A
2020-03-30Material 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-K/ACurrent Report (Amended)
FORM 8-K/A
2020-03-30
View
8-KCurrent Report
FORM 8-K
2020-03-30
View
10-QQuarterly Report
FORM 10-Q
2019-11-13
View
10-QQuarterly Report
FORM 10-Q
2019-08-14
View
10-QQuarterly Report
FORM 10-Q
2019-05-15
View
10-KAnnual Report
FORM 10-K
2019-04-01
View
10-QQuarterly Report
FORM 10-Q
2018-11-13
View
10-QQuarterly Report
FORM 10-Q
2018-08-14
View
10-QQuarterly Report
FORM 10-Q
2018-05-14
View
10-KAnnual Report
FORM 10-K
2018-04-02
View
10-QQuarterly Report
FORM 10-Q
2017-11-13
View
UPLOADUPLOAD
UPLOAD
2017-08-16
View
10-QQuarterly Report
FORM 10-Q
2017-08-14
View
CORRESPCORRESP
CORRESP
2017-08-03
View
10-K/AAnnual Report (Amended)
FORM 10-K/A
2017-08-02
View
Showing 1–15 of 119 filingsForm 4 / 144 hidden

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001411036  |  Exchange: OTC · Basic Materials

Cleantech Biofuels, Inc. (OTC: CLTH) has submitted 119 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2008. As a Basic Materials sector company with CIK 0001411036, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Cleantech Biofuels, Inc.'s most comprehensive regulatory disclosure. The most recent Cleantech Biofuels, Inc. 10-K was filed on 2019-04-01 for fiscal year ending 2019. Historical CLTH 10-K annual reports are available from 2007 through 2019.

Investors researching Cleantech Biofuels, Inc. 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-K2026-06-09
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→ CLTH Financials→ CLTH Earnings→ CLTH Insider Trades

Frequently Asked Questions

CLTH SEC Filings · 8 questions

Cleantech Biofuels, Inc. (CLTH) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 119 filings and access original documents at no cost. Cleantech Biofuels, Inc.'s CIK is 0001411036.

CLTH SEC filingsCleantech Biofuels, Inc. SEC documentsfind CLTH 10-K