ARMATA PHARMACEUTICALS, INC.
ARMATA PHARMACEUTICALS, INC. is a registered legal entity registered in United States under 601166399, and its current status with Washington Secretary of State is active. The company was incorporated on 9 March 1989 and lists its registered address as LOS ANGELES, United States. 1 shareholder is on record for ARMATA PHARMACEUTICALS, 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 Washington Secretary of State and was last updated on 5 October 2026.
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Shareholders
1
One shareholder is currently on record for ARMATA PHARMACEUTICALS, INC., 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 Vanguard Group Inc, holding 29.5% — 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 |
|---|---|---|---|
| Vanguard Group Inc | 29.5% | Washington Secretary of State |
Officers
5
The Governingperson of ARMATA PHARMACEUTICALS, INC. currently on record is ODYSSEAS KOSTAS; five officers are currently on record for ARMATA PHARMACEUTICALS, INC., filed with Washington Secretary of State.
The register reports 7 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at ARMATA PHARMACEUTICALS, 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
ARMATA PHARMACEUTICALS, INC. has no recorded parent company — it sits at the top of its own group structure, with 4 subsidiaries recorded beneath it across 3 jurisdictions. 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 4 subsidiaries span United States, Australia, United Kingdom jurisdictions, 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. Two of the 4 go a level deeper still, with their own further subsidiaries recorded beneath them — additional ownership layers this view doesn't expand.
ARMATA PHARMACEUTICALS, INC.
United States
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Frequently Asked Questions
Who owns ARMATA PHARMACEUTICALS, INC.?
One shareholder is currently on record for ARMATA PHARMACEUTICALS, INC., 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 Vanguard Group Inc, holding 29.5% — 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 ARMATA PHARMACEUTICALS, INC.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for ARMATA PHARMACEUTICALS, 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 ARMATA PHARMACEUTICALS, INC. have on record?
1 shareholder is shown on record for ARMATA PHARMACEUTICALS, INC..
What is ARMATA PHARMACEUTICALS, INC.'s company registration number?
ARMATA PHARMACEUTICALS, INC.'s registration number is 601166399, filed with Washington Secretary of State in United States. Its current status on the register is active.
Is ARMATA PHARMACEUTICALS, INC. still an active company?
ARMATA PHARMACEUTICALS, INC.'s status on Washington Secretary of State is listed as active.
When was ARMATA PHARMACEUTICALS, INC. incorporated?
ARMATA PHARMACEUTICALS, INC. was incorporated on 9 March 1989, according to Washington Secretary of State.
What is ARMATA PHARMACEUTICALS, INC.'s registered address?
The registered address on file for ARMATA PHARMACEUTICALS, INC. is LOS ANGELES, United States.
Who are the officers/directors of ARMATA PHARMACEUTICALS, INC.?
The Governingperson of ARMATA PHARMACEUTICALS, INC. currently on record is ODYSSEAS KOSTAS; five officers are currently on record for ARMATA PHARMACEUTICALS, INC., filed with Washington Secretary of State. Management authority at ARMATA PHARMACEUTICALS, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does ARMATA PHARMACEUTICALS, INC. have a parent company or subsidiaries?
ARMATA PHARMACEUTICALS, INC. has no recorded parent company — it sits at the top of its own group structure, with 4 subsidiaries recorded beneath it across 3 jurisdictions. Those 4 subsidiaries span United States, Australia, United Kingdom jurisdictions, 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. Two of the 4 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 ARMATA PHARMACEUTICALS, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from Washington Secretary of State. Zavia's monitoring API can track changes to ARMATA PHARMACEUTICALS, 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 ARMATA PHARMACEUTICALS, 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 ARMATA PHARMACEUTICALS, 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 Washington Secretary of State and was last synced on 5 October 2026.