DATA SYSTEM / EDGAR

SEC EDGAR data

Understand SEC EDGAR data, CIK identifiers, accession numbers, filing metadata, source documents, and how AUMSearch preserves provenance.

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Definition

EDGAR is the SEC’s electronic filing and public-access system for company and market-participant submissions. For AUMSearch, EDGAR is the source system for Form 13F filings, filing metadata, accession numbers, filer CIKs, and official source documents.

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Move from the definition to the workflow.

Use the same source-linked record model in the interface that fits the research task.

At a glance

System role
Electronic filing and public access
Filer ID
CIK
Submission ID
Accession number
AUMSearch focus
Form 13F and source documents

EDGAR identifiers

A CIK identifies an EDGAR filer account. An accession number identifies an individual submission. The form type tells readers what was filed. These fields should remain separate: a manager can submit many filings under one CIK, and an accession number identifies the submission rather than the organization.

Filing metadata and source documents

An EDGAR filing can contain a primary document and supporting exhibits or XML files. Form 13F information tables are structured attachments within a filing submission. A normalized holdings row must retain the accession and source-document relationship needed to reproduce it.

A source-first EDGAR model

  • Preserve the exact accession number.
  • Store the filer CIK and form type.
  • Keep report period, filed date, and accepted timestamp distinct.
  • Link to the official filing detail page.
  • Record amendment and supersession relationships.
  • Keep retrieval and normalization timestamps separate from SEC timestamps.

Worked example: build a Berkshire filing link

The SEC filing detail for Berkshire Hathaway Inc.'s Form 13F-HR lists filer CIK 0001067983, accession 0001193125-26-352200, a June 30, 2026 report period, and an August 14, 2026 filing date. Treat these as separate fields when creating a source-linked record.

For SEC Archives, the directory uses the numeric CIK without leading zeroes and the accession without hyphens: /Archives/edgar/data/1067983/000119312526352200/. Start with the official filing index before opening a document. The index displays primary_doc.html as the primary Form 13F document, but its rendered link target is /Archives/edgar/data/1067983/000119312526352200/xslForm13F_X02/primary_doc.xml; retain the display label and actual href separately. The index also lists 56757.xml as the information-table attachment.

This is a link-construction example, not a global identifier registry. If the filing index names a different primary document, preserve that exact document name instead of guessing from the form type.

FieldVerified valueUse
Filer CIK0001067983Identify Berkshire Hathaway Inc. in EDGAR; the Archives path uses 1067983
Accession0001193125-26-352200Identify this submission; remove hyphens only for the Archives directory
Filing index0001193125-26-352200-index.htmlConfirm form, dates, documents, and filer before deep-linking
Primary document labelprimary_doc.htmlDisplay label in the SEC filing index
Primary document hrefhttps://www.sec.gov/Archives/edgar/data/1067983/000119312526352200/xslForm13F_X02/primary_doc.xmlOpen the rendered primary 13F-HR document target
Information table56757.xmlOpen the structured holdings attachment named by the filing index

SRC

Primary sources

Definitions and regulatory claims on this page are grounded in the following official public resources.