SEC CENTRAL INDEX KEY

AMERICAN ELECTRIC POWER CO INC CIK Number

The SEC Central Index Key (CIK) for AMERICAN ELECTRIC POWER CO INC (AEP).

CIK (CENTRAL INDEX KEY)
0000004904
Also written as 4904 (without leading zeros).
Company
AMERICAN ELECTRIC POWER CO INC
Ticker
AEP
Download AEP 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 AMERICAN ELECTRIC POWER CO INC changed its ticker or name, its CIK (0000004904) 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 AMERICAN ELECTRIC POWER CO INC is indexed under CIK 0000004904.

CIK vs ticker — what is the difference?

  • Ticker (AEP) — exchange trading symbol; can change or be reused.
  • CIK (0000004904) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000004904 and 4904 refer to the same filer.

How to use AMERICAN ELECTRIC POWER CO INC's CIK

Paste CIK 0000004904 into EDGAR full-text search to see every filing, or skip the friction and download AEP 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.