APTEVO THERAPEUTICS INC.
APTEVO THERAPEUTICS INC. is a registered legal entity registered in United States under 603615894, and its current status with Washington Secretary of State is active. The company was incorporated on 3 August 2016 and lists its registered address as SEATTLE, United States. 2 shareholders are on record for APTEVO THERAPEUTICS 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 4 October 2026.
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Shareholders
2
Two shareholders are currently on record for APTEVO THERAPEUTICS 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 38% — the largest recorded stake — followed by UBS Group AG at 0.4%.
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 |
|---|---|---|---|
| Vanguard Group Inc | 38% | Washington Secretary of State | |
| UBS Group AG | 0.4% | Washington Secretary of State |
Officers
4
Four officers are currently on record for APTEVO THERAPEUTICS INC., filed with Washington Secretary of State. Marvin White (appointed 2016-08-01), Soyoung Kwon (appointed 2021-01-01), Daphne Taylor (appointed 2023-03-01) and JEFFREY LAMOTHE all serve as Governingperson.
Management authority at APTEVO THERAPEUTICS 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
APTEVO THERAPEUTICS INC. has no recorded parent company — it sits at the top of its own group structure, with 2 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 2 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.
APTEVO THERAPEUTICS INC.
United States
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Frequently Asked Questions
Who owns APTEVO THERAPEUTICS INC.?
Two shareholders are currently on record for APTEVO THERAPEUTICS 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 38% — the largest recorded stake — followed by UBS Group AG at 0.4%. 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 APTEVO THERAPEUTICS INC.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for APTEVO THERAPEUTICS 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 APTEVO THERAPEUTICS INC. have on record?
2 shareholders are shown on record for APTEVO THERAPEUTICS INC..
What is APTEVO THERAPEUTICS INC.'s company registration number?
APTEVO THERAPEUTICS INC.'s registration number is 603615894, filed with Washington Secretary of State in United States. Its current status on the register is active.
Is APTEVO THERAPEUTICS INC. still an active company?
APTEVO THERAPEUTICS INC.'s status on Washington Secretary of State is listed as active.
When was APTEVO THERAPEUTICS INC. incorporated?
APTEVO THERAPEUTICS INC. was incorporated on 3 August 2016, according to Washington Secretary of State.
What is APTEVO THERAPEUTICS INC.'s registered address?
The registered address on file for APTEVO THERAPEUTICS INC. is SEATTLE, United States.
Who are the officers/directors of APTEVO THERAPEUTICS INC.?
Four officers are currently on record for APTEVO THERAPEUTICS INC., filed with Washington Secretary of State. Marvin White (appointed 2016-08-01), Soyoung Kwon (appointed 2021-01-01), Daphne Taylor (appointed 2023-03-01) and JEFFREY LAMOTHE all serve as Governingperson. Management authority at APTEVO THERAPEUTICS INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does APTEVO THERAPEUTICS INC. have a parent company or subsidiaries?
APTEVO THERAPEUTICS INC. has no recorded parent company — it sits at the top of its own group structure, with 2 subsidiaries recorded beneath it across 1 jurisdiction. Those 2 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.
Can Zavia monitor changes to APTEVO THERAPEUTICS 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 APTEVO THERAPEUTICS 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 APTEVO THERAPEUTICS 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 APTEVO THERAPEUTICS 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 4 October 2026.