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ULTRAGENYX PHARMACEUTICAL INC.

Inactive

Registration No.
3292579
Incorporation Date
2010-04-23
Company Type
Not disclosed
Address
NOVATO, United States
Website
N/A
Source: California Secretary of State — bizfile Online

ULTRAGENYX PHARMACEUTICAL INC. is a registered legal entity registered in United States under 3292579, and its current status with California Secretary of State — bizfile Online is inactive. The company was incorporated on 23 April 2010 and lists its registered address as NOVATO, United States. 3 shareholders are on record for ULTRAGENYX PHARMACEUTICAL INC., including at least one natural person recorded as a direct holder; the filing carries no beneficial-ownership flag, so that holder is noted here as a recorded shareholder rather than a confirmed ultimate beneficial owner (UBO). This profile is sourced directly from California Secretary of State — bizfile Online and was last updated on 3 October 2026.

Data Provenance
This record is sourced directly from official government registries, including California Secretary of State — bizfile Online.

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Shareholders

3

Three shareholders are currently on record for ULTRAGENYX PHARMACEUTICAL 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 15.2% — the largest recorded stake — followed by Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total at 4.2%; the remaining 1 shareholder shown holds smaller stakes.

2 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.

Shareholder Type Holding Source Document
Vanguard Group Inc 15.2% California Secretary of State — bizfile Online
Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total 4.2% California Secretary of State — bizfile Online
First Trust NYSE Arca Biotechnology Index Fund 1.5% California Secretary of State — bizfile Online

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Full cap table, ownership percentages, and ultimate beneficial owners resolved down to the natural person.

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Officers

5

The Executive Vp & Chief Commercial Officer of ULTRAGENYX PHARMACEUTICAL INC. currently on record is Erik Harris M.b.a.; five officers are currently on record for ULTRAGENYX PHARMACEUTICAL INC., filed with California Secretary of State — bizfile Online.

The register reports 25 officers in total, including past appointments, though only the 5 most relevant records are shown here.

Management authority at ULTRAGENYX PHARMACEUTICAL 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.

EH
Erik Harris M.b.a. ACTIVE

Residence
🇺🇸 United States
Occupation
Executive Vp & Chief Commercial Officer

KH
Karah Herdman Parschauer J.d. ACTIVE

Residence
🇺🇸 United States
Occupation
Chief Legal Officer & Executive Vp Of Corporate Affairs

VS
Vimal Srivastava ACTIVE

Residence
🇺🇸 United States
Occupation
Senior Vice President Of Business Development & Alliance Management

TR
Thomas R. Kassberg ACTIVE

Residence
🇺🇸 United States
Occupation
Chief Business Officer & Executive Vp

JP
John PINION II ACTIVE

Residence
🇺🇸 United States
Occupation
Chief Quality Operations Officer & Executive Vp Of Translational Sciences

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Group Structure

ULTRAGENYX PHARMACEUTICAL INC. has no recorded parent company — it sits at the top of its own group structure, with 11 subsidiaries recorded beneath it across 7 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 11 subsidiaries span United States, Mexico, Netherlands, Colombia, Argentina, United Kingdom, and 1 more 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. One of the 11 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.

Ultimate HQ
ULTRAGENYX PHARMACEUTICAL INC.
United States
Ultragenyx Mexico, S. de R.L. de C.V.
MexicoMX UME180419JE5

Ultragenyx Netherlands B.V.+ subsidiaries
NetherlandsNL 69634572

ULTRAGENYX COLOMBIA S A S
ColombiaCO 9011515798

Ultragenyx Holdco LLC
United States#0229478729

ULTRAGENYX ARGENTINA S.R.L
ArgentinaAR 30715629611

Genetx Biotherapeutics, LLC
United StatesUS FL 6639111

Rare Delaware Inc.
United StatesUS CA 6887460

Dimension Therapeutics, Inc.
United StatesUS MA 5354786

+3 more entities

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Frequently Asked Questions

Who owns ULTRAGENYX PHARMACEUTICAL INC.?

Three shareholders are currently on record for ULTRAGENYX PHARMACEUTICAL 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 15.2% — the largest recorded stake — followed by Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total at 4.2%; the remaining 1 shareholder shown holds smaller stakes. 2 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.

Who is ULTRAGENYX PHARMACEUTICAL INC.'s UBO (Ultimate Beneficial Owner)?

At least one shareholder recorded for ULTRAGENYX PHARMACEUTICAL INC. is a natural person. The record carries no dedicated UBO/PSC flag, so that holder is stated here as a recorded shareholder rather than a confirmed Ultimate Beneficial Owner (UBO).

How many shareholders does ULTRAGENYX PHARMACEUTICAL INC. have on record?

3 shareholders are shown on record for ULTRAGENYX PHARMACEUTICAL INC..

What is ULTRAGENYX PHARMACEUTICAL INC.'s company registration number?

ULTRAGENYX PHARMACEUTICAL INC.'s registration number is 3292579, filed with California Secretary of State — bizfile Online in United States. Its current status on the register is inactive.

Is ULTRAGENYX PHARMACEUTICAL INC. still an active company?

ULTRAGENYX PHARMACEUTICAL INC.'s status on California Secretary of State — bizfile Online is listed as inactive, not currently active.

When was ULTRAGENYX PHARMACEUTICAL INC. incorporated?

ULTRAGENYX PHARMACEUTICAL INC. was incorporated on 23 April 2010, according to California Secretary of State — bizfile Online.

What is ULTRAGENYX PHARMACEUTICAL INC.'s registered address?

The registered address on file for ULTRAGENYX PHARMACEUTICAL INC. is NOVATO, United States.

Who are the officers/directors of ULTRAGENYX PHARMACEUTICAL INC.?

The Executive Vp & Chief Commercial Officer of ULTRAGENYX PHARMACEUTICAL INC. currently on record is Erik Harris M.b.a.; five officers are currently on record for ULTRAGENYX PHARMACEUTICAL INC., filed with California Secretary of State — bizfile Online. Management authority at ULTRAGENYX PHARMACEUTICAL INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.

Does ULTRAGENYX PHARMACEUTICAL INC. have a parent company or subsidiaries?

ULTRAGENYX PHARMACEUTICAL INC. has no recorded parent company — it sits at the top of its own group structure, with 11 subsidiaries recorded beneath it across 7 jurisdictions. Those 11 subsidiaries span United States, Mexico, Netherlands, Colombia, Argentina, United Kingdom, and 1 more 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. One of the 11 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.

Can Zavia monitor changes to ULTRAGENYX PHARMACEUTICAL 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 ULTRAGENYX PHARMACEUTICAL 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 ULTRAGENYX PHARMACEUTICAL 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 ULTRAGENYX PHARMACEUTICAL 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 3 October 2026.

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