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RAPT THERAPEUTICS, INC.

Active

in

Registration No.
3762236
Incorporation Date
2015-03-06
Company Type
Not disclosed
Address
United States
Website
www.rapt.com/
Source: California Secretary of State — bizfile Online

RAPT THERAPEUTICS, INC. is a registered legal entity registered in United States under 3762236, and its current status with California Secretary of State — bizfile Online is active. The company was incorporated on 6 March 2015 and lists its registered address as United States. 3 shareholders are on record for RAPT 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 California Secretary of State — bizfile Online and was last updated on 4 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 RAPT 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 Foresite Capital Management VI LLC , holding 39.5% — the largest recorded stake — followed by Adar1 Capital Management, LLC at 18.8%; the remaining 1 shareholder shown holds 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.

Shareholder Type Holding Source Document
Foresite Capital Management VI LLC 39.5% California Secretary of State — bizfile Online
Adar1 Capital Management, LLC 18.8% California Secretary of State — bizfile Online
Vanguard Group Inc 8.3% 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 Chief Executive Officer of RAPT THERAPEUTICS, INC. currently on record is Brian Wong; five officers are currently on record for RAPT THERAPEUTICS, INC., filed with California Secretary of State — bizfile Online.

The register reports 18 officers in total, including past appointments, though only the 5 most relevant records are shown here.

Management authority at RAPT 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.

BW
Brian Wong ACTIVE

Appointed
2015-08-01
Residence
🇺🇸 United States
Occupation
Chief Executive Officer

RY
Rodney Young ACTIVE

Appointed
2019-12-01
Residence
🇺🇸 United States
Occupation
Chief Financial Officer

PK
Paul Kassner ACTIVE

Appointed
2020-02-01
Residence
🇺🇸 United States
Occupation
Senior Vice President Of Quantitative & Computational Biology

ML
Michael Listgarten ACTIVE

Residence
🇺🇸 United States
Occupation
General Counsel

GR
Gwen R. Carscadden ACTIVE

Residence
🇺🇸 United States
Occupation
Chief Human Resources Officer

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Group Structure

RAPT THERAPEUTICS, INC. sits 5 levels below its ultimate parent, GSK PLC, registered in United Kingdom. The full chain up to GSK PLC is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by RAPT THERAPEUTICS, INC.'s own shareholder record.

Ultimate HQ
GSK PLC
United Kingdom

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Frequently Asked Questions

Who owns RAPT THERAPEUTICS, INC.?

Three shareholders are currently on record for RAPT 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 Foresite Capital Management VI LLC , holding 39.5% — the largest recorded stake — followed by Adar1 Capital Management, LLC at 18.8%; the remaining 1 shareholder shown holds 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 RAPT THERAPEUTICS, INC.'s UBO (Ultimate Beneficial Owner)?

Every shareholder recorded for RAPT 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 RAPT THERAPEUTICS, INC. have on record?

3 shareholders are shown on record for RAPT THERAPEUTICS, INC..

What is RAPT THERAPEUTICS, INC.'s company registration number?

RAPT THERAPEUTICS, INC.'s registration number is 3762236, filed with California Secretary of State — bizfile Online in United States. Its current status on the register is active.

Is RAPT THERAPEUTICS, INC. still an active company?

RAPT THERAPEUTICS, INC.'s status on California Secretary of State — bizfile Online is listed as active.

When was RAPT THERAPEUTICS, INC. incorporated?

RAPT THERAPEUTICS, INC. was incorporated on 6 March 2015, according to California Secretary of State — bizfile Online.

What is RAPT THERAPEUTICS, INC.'s registered address?

The registered address on file for RAPT THERAPEUTICS, INC. is United States.

Who are the officers/directors of RAPT THERAPEUTICS, INC.?

The Chief Executive Officer of RAPT THERAPEUTICS, INC. currently on record is Brian Wong; five officers are currently on record for RAPT THERAPEUTICS, INC., filed with California Secretary of State — bizfile Online. Management authority at RAPT THERAPEUTICS, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.

Does RAPT THERAPEUTICS, INC. have a parent company or subsidiaries?

RAPT THERAPEUTICS, INC. sits 5 levels below its ultimate parent, GSK PLC, registered in United Kingdom.

Can Zavia monitor changes to RAPT THERAPEUTICS, 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 RAPT 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 RAPT 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 RAPT 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 California Secretary of State — bizfile Online and was last synced on 4 October 2026.

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