Fundraising Fox

Catalys Pacific

Venture capital

Tokyo · Seed–Series A · 25 people tracked

Also known as CATALYS PACIFIC, LLC

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Investment thesis

Catalys Pacific centers its investment and company-building strategy on transpacific partnerships, combining an extensive global network with on-the-ground local presence in both Japan and the United States. This dual presence enables differentiated deal sourcing and access to early-stage opportunities to found and build bespoke new biotech companies on both sides of the Pacific. The firm aims to maximize therapeutic impact for patients worldwide while generating attractive risk-adjusted returns for investors, focusing on creating innovation for patients through precision therapeutics and drug development.

Invests inBiotechDigital HealthHealthtechMedical DevicesAsia-PacificJapanNorth AmericaTokyoUnited States

Source: firm website, verified Aug 11, 2026.

Stage
Seed–Series A
HQ
Tokyo, JP
Instruments
Equity
Founded
2019
Private fund assets
$1.1B
VC funds
3
Tracked investments
10

Team · 25 people

from the firm's website & public directories
Jogen Atone· Principal
Jay Shepard· Venture Partner
Ariel Miura· Analyst
Hayato Urabe· Vice President

Vice President at Catalys Pacific; holds PhD and MPIA degrees.

Hidemasa Tanigaki· Operating Partner
Jonathan MacQuitty· Advisor

Advisor to Catalys Pacific; holds a PhD.

Masato Iwasaki· Advisor

Advisor to Catalys Pacific; holds a PhD.

Mitsuyuki “Mickey” Matsumoto· Operating Partner

Operating Partner at Catalys Pacific; holds a PhD.

Neal Fowler· Operating Partner

Operating Partner at Catalys Pacific; holds an MBA.

Nobuo Hanai· Advisor

Advisor to Catalys Pacific; holds a PhD.

Ryan Drant· Advisor

What they invest in

from 5 of 10 portfolio companies

Biotech ×5Medical Devices ×2Digital Health ×1Fintech ×1

HQs:United States×3Japan×1

Investments · 10 tracked

founders shown can be your intro path

By year:2022 · 12020 · 12 dated

Mineralys Therapeuticsmineralystx.cominNASDAQ: MLYSJun 2022SEC filinghigh confidence

Clinical-stage biopharmaceutical company committed to developing best-in-class novel therapy for hypertension treatment.

BiotechRadnor, US

Adam Levy(Executive Officer)Srinivas Akkaraju(Director)Alexander Asam(Director)

BoardOlivier Litzka(Director)Derek DiRocco(Director)

Board seatTakeshi TakahashiBrian Taylor Slingsby· per SEC Form D · $118M raise · filed Jun 2022

Phathom PharmaceuticalsNASDAQ: PHAT

Company advancing treatments for patients with acid-related disorders

ヘパリスファーマ株式会社hepalys.com✓ verified

Hepalys Pharma is a late-stage biopharmaceutical company developing innovative therapeutics for liver disease in Japanese and Asian patients, focusing on metabolic dysfunction-associated steatohepatitis (MASH) treatment through its lead candidate Lanifibranor.

BiotechMedical DevicesTokyo, JP

Catalys Pacific

Exalys TherapeuticsApr 2020SEC filinghigh confidence

BiotechSan Diego, US

Eckard Weber, M.D.(Director)Michael Sanders(Executive Officer)Nicole Vitullo(Director)Dennis Podlesak(Executive Officer, Director)Rick Orr(Director)Lynne Rollins(Executive Officer)

Board seatTakeshi TakahashiBrian Taylor Slingsby· per SEC Form D · $25M raise · filed Apr 2020

Aculys

Company addressing social issues in neurology (noted as acquired).

Arialysarialysrx.comin𝕏

Arialys Therapeutics develops precision medicines targeting pathogenic autoantibodies in the brain to treat neuropsychiatric disorders driven by autoimmune disease.

BiotechDigital HealthMedical DevicesLa Jolla, US

Peter Flynn, Ph.D.(Executive Officer, Director)

BoardJay Lichter, Ph.D.(Director)Brian Slingsby, M.D., Ph.D., M.P.H.(Director)Ed Hurwitz(Director)Ashish Xavier, Ph.D.(Director)Tighe Reardon(Executive Officer)

HilleVaxhillevax.comin

XOMA Royalty is a biotech royalty aggregator that acquires the economic rights to future milestone and royalty payments tied to partnered pre-commercial clinical candidates.

BiotechFintech

Kirilys

A multi-asset precision oncology company

Mineralys

A targeted approach for the control of hypertension

Pathalyspathalys.comin𝕏

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Exits · 2

IPOs and acquisitions across the tracked portfolio

Mineralys TherapeuticsNASDAQ: MLYSPhathom PharmaceuticalsNASDAQ: PHAT

Portfolio news

latest coverage across their companies

Public market activity · per SEC filings

what is this? ⓘ

Files 13F institutional holdings reports · latest Aug 2026

From the firm's own SEC EDGAR filings — stakes and insider roles in public companies, typically portfolio companies after an IPO. Not a portfolio list published by the firm.

Frequently asked questions

What stage does Catalys Pacific invest at?
Catalys Pacific invests at the Seed, Series A stages.
What sectors does Catalys Pacific focus on?
Catalys Pacific focuses on Biotech, Digital Health, Healthtech, Medical Devices.
Where is Catalys Pacific located?
Catalys Pacific is headquartered in Tokyo, JP.

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