SEC CENTRAL INDEX KEY

AFLAC INC CIK Number

The SEC Central Index Key (CIK) for AFLAC INC (AFL).

CIK (CENTRAL INDEX KEY)
0000004977
Also written as 4977 (without leading zeros).
Company
AFLAC INC
Ticker
AFL
Download AFL filings (PDF) →View on SEC EDGAR

What is a CIK number?

A CIK (Central Index Key) is the unique, permanent identifier the U.S. Securities and Exchange Commission assigns to every filer — companies, funds, and individuals — in its EDGAR system. Unlike a stock ticker, a CIK never changes: even if AFLAC INC changed its ticker or name, its CIK (0000004977) would stay the same.

That stability is why the CIK is the most reliable way to pull a company's filings programmatically. Every 10-K, 10-Q, 8-K, and Form 4 for AFLAC INC is indexed under CIK 0000004977.

CIK vs ticker — what is the difference?

  • Ticker (AFL) — exchange trading symbol; can change or be reused.
  • CIK (0000004977) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000004977 and 4977 refer to the same filer.

How to use AFLAC INC's CIK

Paste CIK 0000004977 into EDGAR full-text search to see every filing, or skip the friction and download AFL filings as clean PDFs here. To look up any other company's CIK, use the CIK lookup directory.

Source: SEC EDGAR company index (sec.gov). CIK data is public.