SEC Data Glossary

Accession Number

Definition

An accession number is the unique identifier the SEC assigns to each individual submission made through EDGAR. While a Central Index Key (CIK) identifies the filer, the accession number identifies one specific filing by that filer — a particular 10-K, 10-Q, 8-K, or any other document submitted on a particular date. It is the precise reference used to locate and cite an exact filing in EDGAR.

A typical accession number looks like 0000320193-23-000106, written as three segments separated by hyphens.

Details

The three parts of an accession number encode the entity that submitted the filing, the year of submission, and a sequence number for that submitter within the year. The first segment is the CIK of the filer or filing agent that transmitted the submission, the middle segment is the two-digit year, and the final segment is a sequence counter. In EDGAR URLs the hyphens are often removed, producing a continuous string of digits.

Each accession number maps to a single submission, which usually bundles a primary document together with its exhibits and, for periodic reports, the associated XBRL data. Because the accession number points to one exact filing, it is the most precise way to cite a source — far more specific than referencing a company and a year alone.

When verifying a figure, the accession number lets you navigate directly to the original document in EDGAR. GeminIQ's approach of sourcing from as-filed XBRL data means any value can ultimately be traced back to the specific filing identified by its accession number.

FAQ

Q: What is the difference between a CIK and an accession number?

A: A CIK identifies the filer — the company or individual making the submission. An accession number identifies a single, specific submission by that filer. One company (one CIK) will have many accession numbers, one for each filing it has made.

Q: How do I read an accession number?

A: An accession number such as 0000320193-23-000106 has three parts: the filer or filing agent's CIK, the two-digit year of submission, and a sequence number. Together they uniquely identify one filing in EDGAR.

Q: Why is an accession number useful for citations?

A: Because it points to one exact submission, an accession number lets anyone retrieve the precise document a figure came from. Citing the accession number makes a financial claim verifiable against the original SEC filing.

Related Terms

Further Reading: How to Verify Financial Data Against the Original SEC Filing

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