SEC CENTRAL INDEX KEY

CISCO SYSTEMS, INC. CIK Number

The SEC Central Index Key (CIK) for CISCO SYSTEMS, INC. (CSCO).

CIK (CENTRAL INDEX KEY)
0000858877
Also written as 858877 (without leading zeros).
Company
CISCO SYSTEMS, INC.
Ticker
CSCO
Download CSCO 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 CISCO SYSTEMS, INC. changed its ticker or name, its CIK (0000858877) 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 CISCO SYSTEMS, INC. is indexed under CIK 0000858877.

CIK vs ticker — what is the difference?

  • Ticker (CSCO) — exchange trading symbol; can change or be reused.
  • CIK (0000858877) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0000858877 and 858877 refer to the same filer.

How to use CISCO SYSTEMS, INC.'s CIK

Paste CIK 0000858877 into EDGAR full-text search to see every filing, or skip the friction and download CSCO 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.