MOLECULIN BIOTECH, INC.
MOLECULIN BIOTECH, INC. is a Public Limited Company registered in United States under 0800740357, and its current status with Texas Secretary of State — SOSDirect is active. The company was incorporated on 1 December 2006 and lists its registered address as Houston, United States. 5 shareholders are on record for MOLECULIN BIOTECH, 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 Texas Secretary of State — SOSDirect and was last updated on 5 October 2026.
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Shareholders
5
Five shareholders are currently on record for MOLECULIN BIOTECH, 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 29.4% — the largest recorded stake — followed by Fidelity Concord Street Trust-Fidelity Extended Market Index Fund at 12.6%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 6 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 |
|---|---|---|---|
| Vanguard Group Inc | 29.4% | Texas Secretary of State — SOSDirect | |
| Fidelity Concord Street Trust-Fidelity Extended Market Index Fund | 12.6% | Texas Secretary of State — SOSDirect | |
| UBS Group AG | 11.1% | Texas Secretary of State — SOSDirect | |
| Fidelity Concord Street Trust-Fidelity Series Total Market Index Fund | 2.5% | Texas Secretary of State — SOSDirect | |
| Fidelity Concord Street Trust-Fidelity Total Market Index Fund | 1.7% | Texas Secretary of State — SOSDirect |
Officers
5
The Manager of MOLECULIN BIOTECH, INC. currently on record is JERZY GUMULKA; five officers are currently on record for MOLECULIN BIOTECH, INC., filed with Texas Secretary of State — SOSDirect.
The register reports 23 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at MOLECULIN BIOTECH, 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
MOLECULIN BIOTECH, INC. has no recorded parent company — it sits at the top of its own group structure, with 2 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 2 subsidiaries span United States, Australia, Netherlands 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.
MOLECULIN BIOTECH, INC.
United States
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Frequently Asked Questions
Who owns MOLECULIN BIOTECH, INC.?
Five shareholders are currently on record for MOLECULIN BIOTECH, 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 29.4% — the largest recorded stake — followed by Fidelity Concord Street Trust-Fidelity Extended Market Index Fund at 12.6%; 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 MOLECULIN BIOTECH, INC.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for MOLECULIN BIOTECH, 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 MOLECULIN BIOTECH, INC. have on record?
5 shareholders are shown on record for MOLECULIN BIOTECH, INC.. The register reports 6 in total; only the top 5 by holding are shown here.
What is MOLECULIN BIOTECH, INC.'s company registration number?
MOLECULIN BIOTECH, INC.'s registration number is 0800740357, filed with Texas Secretary of State — SOSDirect in United States. Its current status on the register is active.
Is MOLECULIN BIOTECH, INC. still an active company?
MOLECULIN BIOTECH, INC.'s status on Texas Secretary of State — SOSDirect is listed as active.
When was MOLECULIN BIOTECH, INC. incorporated?
MOLECULIN BIOTECH, INC. was incorporated on 1 December 2006, according to Texas Secretary of State — SOSDirect.
What is MOLECULIN BIOTECH, INC.'s registered address?
The registered address on file for MOLECULIN BIOTECH, INC. is Houston, United States.
What legal structure is MOLECULIN BIOTECH, INC. registered as?
MOLECULIN BIOTECH, INC. is registered as a Public Limited Company in United States.
Who are the officers/directors of MOLECULIN BIOTECH, INC.?
The Manager of MOLECULIN BIOTECH, INC. currently on record is JERZY GUMULKA; five officers are currently on record for MOLECULIN BIOTECH, INC., filed with Texas Secretary of State — SOSDirect. Management authority at MOLECULIN BIOTECH, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does MOLECULIN BIOTECH, INC. have a parent company or subsidiaries?
MOLECULIN BIOTECH, INC. has no recorded parent company — it sits at the top of its own group structure, with 2 subsidiaries recorded beneath it across 3 jurisdictions. Those 2 subsidiaries span United States, Australia, Netherlands 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.
Can Zavia monitor changes to MOLECULIN BIOTECH, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from Texas Secretary of State — SOSDirect. Zavia's monitoring API can track changes to MOLECULIN BIOTECH, 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 MOLECULIN BIOTECH, 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 MOLECULIN BIOTECH, 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 Texas Secretary of State — SOSDirect and was last synced on 5 October 2026.