BLACKSTONE MORTGAGE TRUST, INC.
BLACKSTONE MORTGAGE TRUST, INC. is a Private limited company (Ltd.) registered in United States under 2256453, and its current status with New York Department of State — Division of Corporations is active. The company was incorporated on 5 May 1998 and lists its registered address as New York, United States. 1 shareholder is on record for BLACKSTONE MORTGAGE TRUST, INC., 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 New York Department of State — Division of Corporations and was last updated on 9 October 2026.
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Shareholders
1
One shareholder is currently on record for BLACKSTONE MORTGAGE TRUST, INC., reflecting the stock ledger kept by the company under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is Fidelity Salem Street Trust-Fidelity Small Cap Index Fund, holding 1.6% — the largest recorded stake.
Because the 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 |
|---|---|---|---|
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.6% | New York Department of State — Division of Corporations |
Officers
5
The Ceo, President & Director of BLACKSTONE MORTGAGE TRUST, INC. currently on record is Katharine Amelia Keenan; five officers are currently on record for BLACKSTONE MORTGAGE TRUST, INC., filed with New York Department of State — Division of Corporations.
The register reports 15 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at BLACKSTONE MORTGAGE TRUST, INC. 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
BLACKSTONE MORTGAGE TRUST, INC. has no recorded parent company — it sits at the top of its own group structure, with 152 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 152 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. Five of the 152 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
BLACKSTONE MORTGAGE TRUST, INC.
United States
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Frequently Asked Questions
Who owns BLACKSTONE MORTGAGE TRUST, INC.?
One shareholder is currently on record for BLACKSTONE MORTGAGE TRUST, INC., reflecting the stock ledger kept by the company under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is Fidelity Salem Street Trust-Fidelity Small Cap Index Fund, holding 1.6% — the largest recorded stake. Because the 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 BLACKSTONE MORTGAGE TRUST, INC.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for BLACKSTONE MORTGAGE TRUST, INC. 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 BLACKSTONE MORTGAGE TRUST, INC. have on record?
1 shareholder is shown on record for BLACKSTONE MORTGAGE TRUST, INC..
What is BLACKSTONE MORTGAGE TRUST, INC.'s company registration number?
BLACKSTONE MORTGAGE TRUST, INC.'s registration number is 2256453, filed with New York Department of State — Division of Corporations in United States. Its current status on the register is active.
Is BLACKSTONE MORTGAGE TRUST, INC. still an active company?
BLACKSTONE MORTGAGE TRUST, INC.'s status on New York Department of State — Division of Corporations is listed as active.
When was BLACKSTONE MORTGAGE TRUST, INC. incorporated?
BLACKSTONE MORTGAGE TRUST, INC. was incorporated on 5 May 1998, according to New York Department of State — Division of Corporations.
What is BLACKSTONE MORTGAGE TRUST, INC.'s registered address?
The registered address on file for BLACKSTONE MORTGAGE TRUST, INC. is New York, United States.
What legal structure is BLACKSTONE MORTGAGE TRUST, INC. registered as?
BLACKSTONE MORTGAGE TRUST, INC. is registered as a Private limited company (Ltd.) in United States.
Who are the officers/directors of BLACKSTONE MORTGAGE TRUST, INC.?
The Ceo, President & Director of BLACKSTONE MORTGAGE TRUST, INC. currently on record is Katharine Amelia Keenan; five officers are currently on record for BLACKSTONE MORTGAGE TRUST, INC., filed with New York Department of State — Division of Corporations. Management authority at BLACKSTONE MORTGAGE TRUST, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does BLACKSTONE MORTGAGE TRUST, INC. have a parent company or subsidiaries?
BLACKSTONE MORTGAGE TRUST, INC. has no recorded parent company — it sits at the top of its own group structure, with 152 subsidiaries recorded beneath it across 1 jurisdiction. Those 152 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. Five of the 152 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to BLACKSTONE MORTGAGE TRUST, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from New York Department of State — Division of Corporations. Zavia's monitoring API can track changes to BLACKSTONE MORTGAGE TRUST, INC.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access BLACKSTONE MORTGAGE TRUST, INC.'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 BLACKSTONE MORTGAGE TRUST, INC.'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 New York Department of State — Division of Corporations and was last synced on 9 October 2026.