SEC CENTRAL INDEX KEY

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD CIK Number

The SEC Central Index Key (CIK) for TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM).

CIK (CENTRAL INDEX KEY)
0001046179
Also written as 1046179 (without leading zeros).
Company
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
Ticker
TSM
Download TSM 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 TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD changed its ticker or name, its CIK (0001046179) 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 TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD is indexed under CIK 0001046179.

CIK vs ticker — what is the difference?

  • Ticker (TSM) — exchange trading symbol; can change or be reused.
  • CIK (0001046179) — SEC filer ID; permanent, one per filer, used across all EDGAR filings.
  • Leading zeros are optional: 0001046179 and 1046179 refer to the same filer.

How to use TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD's CIK

Paste CIK 0001046179 into EDGAR full-text search to see every filing, or skip the friction and download TSM 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.