ClearSign Technologies Corp (CLIR) SEC filings and CIK.
CLIR’s SEC Central Index Key (CIK) is 0001434524, or 1434524 without leading zeros. The SEC’s ticker file lists it as ClearSign Technologies Corp.
- Ticker
- CLIR
- CIK
- 0001434524
- Other tickers
- None
- Insider transactions, Q3 2026
- 1
Insider trading
In Q3 2026, insiders at ClearSign Technologies Corp reported 1 non-derivative transactions on 5 Forms 3, 4 and 5, including 1 open-market purchases and 0 sales.
Recent filings we observed
No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.
Form D offerings
| Filed | Type | Amount sold | Industry |
|---|---|---|---|
| 2026-07-31 | D | $1.8M | Other Technology |
Get CLIR SEC data through the API
curl "https://sec-api.dev/api/v1/filings?cik=1434524&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/companies/1434524" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/facts/1434524?taxonomy=us-gaap&concept=Revenues&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"Ticker to CIK API · SEC filings API · ClearSign Technologies Corp on SEC.gov
Questions
What is CLIR’s CIK number?
CLIR’s SEC Central Index Key (CIK) is 0001434524, or 1434524 without leading zeros. The SEC’s ticker file lists it as ClearSign Technologies Corp.
How do I find ClearSign Technologies Corp’s 10-K?
Request /api/v1/filings?cik=1434524&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.
Plain-text version for agents and LLMs: /companies/clir.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.