Company · GATX · CIK 40211

Gatx Corp (GATX) SEC filings and CIK.

GATX’s SEC Central Index Key (CIK) is 0000040211, or 40211 without leading zeros. The SEC’s ticker file lists it as GATX CORP.

Ticker: GATX
CIK: 0000040211
Other tickers: None
Insider transactions, Q3 2026: 27

Insider trading

In Q3 2026, insiders at Gatx Corp reported 27 non-derivative transactions on 17 Forms 3, 4 and 5, including 0 open-market purchases and 10 sales. See every GATX insider transaction →

Recent filings we observed

From our record of EDGAR’s latest-filings feed and sampled daily indexes. Not a complete filing history; use the filings API for that.
Filed	Form	Accession
2026-11-06	4	0001989913-26-000012
2026-11-06	144	0001949846-26-000640
2026-10-30	10-Q	0000040211-26-000096

Get GATX SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=40211&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/40211" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/40211?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Gatx Corp on SEC.gov

Questions

What is GATX’s CIK number?

GATX’s SEC Central Index Key (CIK) is 0000040211, or 40211 without leading zeros. The SEC’s ticker file lists it as GATX CORP.

How do I find Gatx Corp’s 10-K?

Request /api/v1/filings?cik=40211&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/gatx.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.