International Business Machines Corp (IBM) SEC filings and CIK.
IBM’s SEC Central Index Key (CIK) is 0000051143, or 51143 without leading zeros. The SEC’s ticker file lists it as INTERNATIONAL BUSINESS MACHINES CORP.
- Ticker
- IBM
- CIK
- 0000051143
- Other tickers
- None
- Insider transactions, Q3 2026
- 5
Insider trading
In Q3 2026, insiders at International Business Machines Corp reported 5 non-derivative transactions on 15 Forms 3, 4 and 5, including 0 open-market purchases and 1 sales. See every IBM insider transaction →
Recent filings we observed
| Filed | Form | Accession |
|---|---|---|
| 2026-11-09 | 424B3 | 0001104659-26-124179 |
Get IBM SEC data through the API
curl "https://sec-api.dev/api/v1/filings?cik=51143&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/companies/51143" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/facts/51143?taxonomy=us-gaap&concept=Revenues&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"Ticker to CIK API · SEC filings API · International Business Machines Corp on SEC.gov
Questions
What is IBM’s CIK number?
IBM’s SEC Central Index Key (CIK) is 0000051143, or 51143 without leading zeros. The SEC’s ticker file lists it as INTERNATIONAL BUSINESS MACHINES CORP.
How do I find International Business Machines Corp’s 10-K?
Request /api/v1/filings?cik=51143&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.
Plain-text version for agents and LLMs: /companies/ibm.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.