Catalys Pacific
Venture capitalTokyo · Seed–Series A · 26 people tracked
Also known as CATALYS PACIFIC, LLC
Find your way into Catalys Pacific
1,314 people in our graph share verified history with the Catalys Pacific team — schools, employers, funds. One of them is your warm intro.
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.
Source: firm website, verified Sep 15, 2026.
Team · 26 people
from the firm's website & curated & public directoriesFounder mafia
4 people who came through Catalys Pacific went on to found or lead other companies.
What they invest in
from 8 of 11 portfolio companiesBiotech ×8Healthtech ×5Medical Devices ×2Digital Health ×1Fintech ×1
HQs:United States×6Japan×1
Investments · 11 tracked
founders shown can be your intro pathBy year:2024 · 12022 · 12020 · 13 dated
Mineralys Therapeutics is a clinical-stage pharmaceutical company developing lorundrostat, a treatment targeting dysregulated aldosterone.
BiotechHealthtechRadnor, US
Eric Warren(Chief Commercial Officer)inAlex Gold(Chief Medical Officer)inAdam Levy(Executive Officer)Alexander Asam(Director)
BoardOlivier Litzka(Director)in
Board seatTakeshi TakahashiBrian Taylor Slingsby· per SEC Form D
Co-investorsAndera PartnersSamsara BioCapitalSR One Capital ManagementYsios CapitalAdams Street PartnersBoulder Ventures+1 more
Arialys Therapeutics develops precision medicines designed to block pathogenic autoantibodies that target brain receptors such as the NMDA receptor, aiming to treat neuropsychiatric disorders driven by autoimmune disease.
BiotechHealthtechLa 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)inAshish Xavier, Ph.D.(Director)Tighe Reardon(Executive Officer)
Co-investorsAvalon BioVenturesMPM BioImpact
Crystalys Therapeutics is a clinical-stage biopharmaceutical company developing targeted therapies for gout, a chronic metabolic disease caused by elevated uric acid.
BiotechHealthtechMedical DevicesSan Diego, US
James Mackay(President & Chief Executive Officer)inNihar Bhakta(Chief Medical Officer)inAshwin Ram(Chief Operating Officer)inDeAnne Reid(Chief Administrative Officer)in
Co-investorsNovo HoldingsAN Venture PartnersFrazier Life SciencesLightstone VenturesLongwood Fund
A company with expertise in developing pharmaceutical products through clinical trial phases (IND to NDA/BLA) and launching them for patients in Japan and Asia.
BiotechDigital HealthMedical DevicesTokyo, JP
Co-investorsDBJ CapitalNippon Venture Capital
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, providing sellers with non-dilutive, non-recourse funding.
BiotechFintech
Co-investorsFrazier Life SciencesLightspeed Venture PartnersRA CapitalSamsara BioCapitalFrazier Healthcare Partners
Pathalys Pharma is a biotechnology company developing and improving therapeutic treatments for patients with chronic kidney disease.
BiotechHealthtechResearch Triangle Park, US
BT Slingsby(Co-Founder & Executive Chairman)in
Co-investorsAbingworthOrbiMedSamsara BioCapitalKB Investment
Phathom Pharmaceuticals is a pharmaceutical company that develops and markets prescription treatments, including VOQUEZNA (vonoprazan) for gastrointestinal conditions, in the U.S. market.
BiotechHealthtech
Mr. Basta(CEO)
Co-investorsFrazier Life SciencesNew Enterprise Associates (NEA)
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Exalys TherapeuticsAculysKirilysMineralys
Exits · 2
1 IPOs · 1 acquisitionsMineralys TherapeuticsNASDAQ: MLYSHilleVaxacq. by XOMA Royalty
Portfolio news
latest coverage across their companiesPhathom Pharmaceuticals · marketbeat.com · Sep 10, 2026

Mineralys Therapeutics · mychesco.com · Aug 18, 2026
Arialys · fiercebiotech.com · Jun 20, 2025
IPO stake values · per SEC filings
Value of this firm's stake in each portfolio company at its IPO price, from the prospectus principal-stockholder table.
| Company | Owned | IPO price | At IPO | Stake value |
|---|---|---|---|---|
| Mineralys Therapeutics | 22.9% | $16.00 | Feb 2023 | $143.1M |
Source: SEC S-1 / 424B prospectus filings. Stake value = shares beneficially owned × the initial public offering price, as disclosed — a market value at IPO, not a return multiple (the firm's original cost is not disclosed).
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
- How many investments has Catalys Pacific made?
- Catalys Pacific has 11 tracked investments, 2 of which have exited.
- 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.
- Who does Catalys Pacific co-invest with?
- Catalys Pacific most often shares deals with Frazier Life Sciences, RA Capital, Samsara BioCapital, among 8 tracked co-investors.
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