GATX CORPORATION
GATX CORPORATION is a Private limited company (Ltd.) registered in United States under 12443, and its current status with Illinois Secretary of State is active. The company was incorporated on 5 July 1916 and lists its registered address as Chicago, United States. 5 shareholders are on record for GATX CORPORATION, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Illinois Secretary of State and was last updated on 17 September 2026.
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Shareholders
5
Five shareholders are currently on record for GATX CORPORATION, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is iShares Trust-iShares Core S&P Mid-Cap ETF, holding 3.6% — the largest recorded stake — followed by American Century ETF Trust-Avantis U.S. Small Cap Value ETF at 3.5%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 7 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| iShares Trust-iShares Core S&P Mid-Cap ETF | 3.6% | Illinois Secretary of State | |
| American Century ETF Trust-Avantis U.S. Small Cap Value ETF | 3.5% | Illinois Secretary of State | |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.6% | Illinois Secretary of State | |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.1% | Illinois Secretary of State | |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.1% | Illinois Secretary of State |
Officers
5
The Chairman of GATX CORPORATION on record is JJ GLASSER; 5 officers are shown here, filed with Illinois Secretary of State.
The register reports 16 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at GATX CORPORATION sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
GATX CORPORATION has no recorded parent company — it sits at the top of its own group structure, with 8 subsidiaries recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 8 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 8 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
GATX CORPORATION
United States
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Frequently Asked Questions
Who owns GATX CORPORATION?
Five shareholders are currently on record for GATX CORPORATION, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is iShares Trust-iShares Core S&P Mid-Cap ETF, holding 3.6% — the largest recorded stake — followed by American Century ETF Trust-Avantis U.S. Small Cap Value ETF at 3.5%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is GATX CORPORATION's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for GATX CORPORATION is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does GATX CORPORATION have on record?
5 shareholders are shown on record for GATX CORPORATION. The register reports 7 in total; only the top 5 by holding are shown here.
What is GATX CORPORATION's company registration number?
GATX CORPORATION's registration number is 12443, filed with Illinois Secretary of State in United States. Its current status on the register is active.
Is GATX CORPORATION still an active company?
GATX CORPORATION's status on Illinois Secretary of State is listed as active.
When was GATX CORPORATION incorporated?
GATX CORPORATION was incorporated on 5 July 1916, according to Illinois Secretary of State.
What is GATX CORPORATION's registered address?
The registered address on file for GATX CORPORATION is Chicago, United States.
What legal structure is GATX CORPORATION registered as?
GATX CORPORATION is registered as a Private limited company (Ltd.) in United States.
Who are the officers/directors of GATX CORPORATION?
The Chairman of GATX CORPORATION on record is JJ GLASSER; 5 officers are shown here, filed with Illinois Secretary of State. Management authority at GATX CORPORATION sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does GATX CORPORATION have a parent company or subsidiaries?
GATX CORPORATION has no recorded parent company — it sits at the top of its own group structure, with 8 subsidiaries recorded beneath it across 1 jurisdiction. Those 8 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 8 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to GATX CORPORATION's ownership over time?
This profile reflects a point-in-time snapshot from Illinois Secretary of State. Zavia's monitoring API can track changes to GATX CORPORATION's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access GATX CORPORATION's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like GATX CORPORATION's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Illinois Secretary of State and was last synced on 17 September 2026.