AMBRX BIOPHARMA, INC.
AMBRX BIOPHARMA, INC. is a registered legal entity registered in United States under 6187791, and its current status with California Secretary of State — bizfile Online is active. The company was incorporated on 1 May 2024 and lists its registered address as SAN DIEGO, United States. No shareholders are recorded for AMBRX BIOPHARMA, INC.; ownership in this jurisdiction is held as the stock ledger under state corporate law (e.g. §219 of the Delaware General Corporation Law), a record kept privately rather than filed publicly. No beneficial owner (UBO) data is recorded for AMBRX BIOPHARMA, INC.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from California Secretary of State — bizfile Online and was last updated on 21 October 2026.
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Officers
5
The Ceo, President & Director of AMBRX BIOPHARMA, INC. currently on record is Daniel J. O'connor J.d.; five officers are currently on record for AMBRX BIOPHARMA, INC., filed with California Secretary of State — bizfile Online.
The register reports 14 officers in total, including past appointments, though only the 5 most relevant records are shown here.
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
AMBRX BIOPHARMA, INC. sits 1 level below its ultimate parent, Johnson & Johnson, registered in United States. The full chain up to Johnson & Johnson is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by AMBRX BIOPHARMA, INC.'s own shareholder record.
Johnson & Johnson
United States
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Frequently Asked Questions
Who is AMBRX BIOPHARMA, INC.'s UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) data is recorded for AMBRX BIOPHARMA, INC.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.
What is AMBRX BIOPHARMA, INC.'s company registration number?
AMBRX BIOPHARMA, INC.'s registration number is 6187791, filed with California Secretary of State — bizfile Online in United States. Its current status on the register is active.
Is AMBRX BIOPHARMA, INC. still an active company?
AMBRX BIOPHARMA, INC.'s status on California Secretary of State — bizfile Online is listed as active.
When was AMBRX BIOPHARMA, INC. incorporated?
AMBRX BIOPHARMA, INC. was incorporated on 1 May 2024, according to California Secretary of State — bizfile Online.
What is AMBRX BIOPHARMA, INC.'s registered address?
The registered address on file for AMBRX BIOPHARMA, INC. is SAN DIEGO, United States.
Who are the officers/directors of AMBRX BIOPHARMA, INC.?
The Ceo, President & Director of AMBRX BIOPHARMA, INC. currently on record is Daniel J. O'connor J.d.; five officers are currently on record for AMBRX BIOPHARMA, INC., filed with California Secretary of State — bizfile Online.
Does AMBRX BIOPHARMA, INC. have a parent company or subsidiaries?
AMBRX BIOPHARMA, INC. sits 1 level below its ultimate parent, Johnson & Johnson, registered in United States.
Can Zavia monitor changes to AMBRX BIOPHARMA, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from California Secretary of State — bizfile Online. Zavia's monitoring API can track changes to AMBRX BIOPHARMA, 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 AMBRX BIOPHARMA, 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 AMBRX BIOPHARMA, 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 California Secretary of State — bizfile Online and was last synced on 21 October 2026.