SEC CENTRAL INDEX KEY

MOODYS CORP /DE/ CIK Number

The SEC Central Index Key (CIK) for MOODYS CORP /DE/ (MCO).

CIK (CENTRAL INDEX KEY)
0001059556
Also written as 1059556 (without leading zeros).
Company
MOODYS CORP /DE/
Ticker
MCO
Download MCO 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 MOODYS CORP /DE/ changed its ticker or name, its CIK (0001059556) 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 MOODYS CORP /DE/ is indexed under CIK 0001059556.

CIK vs ticker — what is the difference?

  • Ticker (MCO) — exchange trading symbol; can change or be reused.
  • CIK (0001059556) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0001059556 and 1059556 refer to the same filer.

How to use MOODYS CORP /DE/'s CIK

Paste CIK 0001059556 into EDGAR full-text search to see every filing, or skip the friction and download MCO 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.