IBIO LLC
IBIO LLC is a Private limited company (Ltd.) registered in United States under 201802410132, and its current status with California Secretary of State — bizfile Online is inactive. The company was incorporated on 8 January 2018 and lists its registered address as SARATOGA, United States. 5 shareholders are on record for IBIO LLC, 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 California Secretary of State — bizfile Online and was last updated on 5 October 2026.
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Shareholders
5
Five shareholders are currently on record for IBIO LLC, 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 Lynx1 Capital Management Lp, holding 29.2% — the largest recorded stake — followed by Ikarian Capital, LLC at 17.1%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 15 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 |
|---|---|---|---|
| Lynx1 Capital Management Lp | 29.2% | California Secretary of State — bizfile Online | |
| Ikarian Capital, LLC | 17.1% | California Secretary of State — bizfile Online | |
| Ameriprise Financial, Inc. | 13.4% | California Secretary of State — bizfile Online | |
| Opaleye Management Inc. | 10.4% | California Secretary of State — bizfile Online | |
| Vanguard Group Inc | 7.6% | California Secretary of State — bizfile Online |
Officers
5
The Ceo, Chief Scientific Officer & Director of IBIO LLC currently on record is Martin B. Brenner D.v.m., Ph.d.; five officers are currently on record for IBIO LLC, filed with California Secretary of State — bizfile Online.
The register reports 9 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at IBIO LLC 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
IBIO LLC sits 1 level below its ultimate parent, Ibio, Inc., registered in United States. The full chain up to Ibio, Inc. is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by IBIO LLC's own shareholder record.
Ibio, Inc.
United States
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Frequently Asked Questions
Who owns IBIO LLC?
Five shareholders are currently on record for IBIO LLC, 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 Lynx1 Capital Management Lp, holding 29.2% — the largest recorded stake — followed by Ikarian Capital, LLC at 17.1%; 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 IBIO LLC's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for IBIO LLC 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 IBIO LLC have on record?
5 shareholders are shown on record for IBIO LLC. The register reports 15 in total; only the top 5 by holding are shown here.
What is IBIO LLC's company registration number?
IBIO LLC's registration number is 201802410132, filed with California Secretary of State — bizfile Online in United States. Its current status on the register is inactive.
Is IBIO LLC still an active company?
IBIO LLC's status on California Secretary of State — bizfile Online is listed as inactive, not currently active.
When was IBIO LLC incorporated?
IBIO LLC was incorporated on 8 January 2018, according to California Secretary of State — bizfile Online.
What is IBIO LLC's registered address?
The registered address on file for IBIO LLC is SARATOGA, United States.
What legal structure is IBIO LLC registered as?
IBIO LLC is registered as a Private limited company (Ltd.) in United States.
Who are the officers/directors of IBIO LLC?
The Ceo, Chief Scientific Officer & Director of IBIO LLC currently on record is Martin B. Brenner D.v.m., Ph.d.; five officers are currently on record for IBIO LLC, filed with California Secretary of State — bizfile Online. Management authority at IBIO LLC sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does IBIO LLC have a parent company or subsidiaries?
IBIO LLC sits 1 level below its ultimate parent, Ibio, Inc., registered in United States.
Can Zavia monitor changes to IBIO LLC'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 IBIO LLC's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access IBIO LLC'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 IBIO LLC'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 5 October 2026.