Free EDGAR tools / Accession number lookup
SEC accession number lookup — paste an accession, get the filing
An accession number is the unique 18-digit identifier SEC EDGAR assigns to every filing, written as three dash-separated parts: 0000320193-25-000008. The first 10 digits are the submitting account's CIK, the middle 2 are the filing year, and the last 6 are the submitter's sequence number that year. Paste one below — with or without dashes — to resolve the issuer, form type, and filing date, and jump straight to the filing. Live SEC EDGAR data, free, no login required.
Accepts the dashed form, the bare 18 digits, or a pasted EDGAR URL containing either.
0001193125-26-000001 is a valid accession number, but we couldn't resolve it to a filing. The prefix (CIK 1193125) may be a filing agent's account rather than the issuer, or the filing may predate the histories we search.
Try it on SEC EDGAR full-text search.
What is an SEC accession number?
An accession number is the unique 18-digit identifier the SEC's EDGAR system assigns to every filing it accepts, written as three dash-separated parts: 0000320193-25-000008. It identifies one submission — the whole filing with all its exhibits — and never changes, which makes it the most precise way to reference an SEC filing.
What do the parts of an accession number mean?
The first 10 digits are the CIK of the account that submitted the filing, the next 2 digits are the filing year, and the final 6 digits are that submitter's sequence number within the year. So 0000320193-25-000008 is the 8th filing submitted by CIK 320193 (Apple Inc.) in 2025.
Is the first part of an accession number the company's CIK?
Not always. The prefix is the CIK of the submitting account. Companies that file their own documents use their own CIK, so the prefix matches the issuer — but filings submitted through a filing agent carry the agent's account CIK instead. To reliably identify the subject company, resolve the accession number to the filing itself rather than trusting the prefix.
How do I look up an SEC filing by accession number?
Paste the accession number — with or without dashes — into the lookup above. It resolves the filing's issuer, form type, and filing date, and links straight to the filing. Programmatically, call the free JSON endpoint: /tools/accession-lookup.json?q=0000320193-25-000008.
Where do I find a filing's accession number?
On SEC EDGAR it appears in the filing index page's header and URL (the 18-digit directory segment is the accession number with dashes removed). It also appears in EDGAR full-text search results, RSS feeds, and most SEC data APIs — anywhere a filing needs a stable identifier.
Accession lookup API for developers and agents
Free JSON · no key · no loginGET https://app.edgar.tools/tools/accession-lookup.json?q=0000320193-25-000008
{
"query": "0000320193-25-000008",
"accession": "0000320193-25-000008",
"parts": { "submitter_cik": 320193, "year": 2025, "sequence": 8 },
"filing": {
"cik": 320193,
"company": "Apple Inc.",
"ticker": "AAPL",
"form": "8-K",
"filed": "2025-01-30",
"filing_url": "https://app.edgar.tools/filing/320193/0000320193-25-000008",
"sec_url": "https://www.sec.gov/Archives/edgar/data/320193/..."
}
}Pass the accession number (either form) as q. filing is null when the accession is valid but unresolvable (agent-filed prefix outside our live window, or a very old filing). For richer programmatic access see the API docs or connect via the MCP server.