Company · WDC · CIK 106040

Western Digital Corp (WDC) SEC filings and CIK.

WDC’s SEC Central Index Key (CIK) is 0000106040, or 106040 without leading zeros. The SEC’s ticker file lists it as WESTERN DIGITAL CORP.

Ticker: WDC
CIK: 0000106040
Other tickers: None
Insider transactions, Q3 2026: 110

Insider trading

In Q3 2026, insiders at Western Digital Corp reported 110 non-derivative transactions on 35 Forms 3, 4 and 5, including 0 open-market purchases and 49 sales. See every WDC insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get WDC SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=106040&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/106040" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/106040?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Western Digital Corp on SEC.gov

Questions

What is WDC’s CIK number?

WDC’s SEC Central Index Key (CIK) is 0000106040, or 106040 without leading zeros. The SEC’s ticker file lists it as WESTERN DIGITAL CORP.

How do I find Western Digital Corp’s 10-K?

Request /api/v1/filings?cik=106040&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/wdc.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.