SEC CENTRAL INDEX KEY

3M CO CIK Number

The SEC Central Index Key (CIK) for 3M CO (MMM).

CIK (CENTRAL INDEX KEY)
0000066740
Also written as 66740 (without leading zeros).
Company
3M CO
Ticker
MMM
Download MMM 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 3M CO changed its ticker or name, its CIK (0000066740) 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 3M CO is indexed under CIK 0000066740.

CIK vs ticker — what is the difference?

  • Ticker (MMM) — exchange trading symbol; can change or be reused.
  • CIK (0000066740) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000066740 and 66740 refer to the same filer.

How to use 3M CO's CIK

Paste CIK 0000066740 into EDGAR full-text search to see every filing, or skip the friction and download MMM 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.