Companies & Tickers
Every public company in EDGAR has a permanent CIK. The API accepts both ticker symbols and CIKs — whichever is more convenient for your use case.
12,100+
Active tickers mapped
95K+
Companies, funds & insiders
2015–today
CIK history coverage
What is a CIK?
A CIK (Central Index Key) is a permanent numeric ID assigned by the SEC to every filer — companies, funds, ETFs, and individual insiders. It never changes, even after a rename, ticker change, or acquisition.
Apple Inc. → CIK 320193
Tesla Inc. → CIK 1318605
Microsoft Corp. → CIK 789019
You can look up any company's CIK on SEC EDGAR or by using the ticker search on the Overview page.
Ticker vs CIK — which to use?
| Scenario | Recommended |
|---|---|
| Querying an active, publicly-listed company | ?ticker=AAPL |
| Querying a delisted or renamed company (e.g. Meta pre-2022) | ?cik=1326801 |
| Building a stable long-term integration | ?cik=… |
| Quick ad-hoc queries or prototyping | ?ticker=… |
Delisted or renamed companies — tickers like FB (now Meta) or SIVB may not resolve. Use the CIK directly for historical queries.
Example API calls
Filings by ticker
https://api.secdailyapi.com/v1/filings?ticker=AAPL&limit=5Returns the 5 most recent Apple filings
Filings by CIK
https://api.secdailyapi.com/v1/filings?cik=320193&limit=5Same result — CIK 320193 is Apple
Insider transactions by ticker
https://api.secdailyapi.com/v1/insider-transactions?issuerTicker=TSLA&limit=5Recent Form 4 filings for Tesla insiders
Insider transactions by CIK
https://api.secdailyapi.com/v1/insider-transactions?issuerCik=1318605&limit=5Same result — CIK 1318605 is Tesla
Requires an API key — get one free.
Ready to start querying?
Full ticker and CIK support across filings and insider transactions endpoints.