About James Peyer
James Peyer is a co-founder & board chair at Rapalogix Health.
Form D filings also name James Peyer as CEO, Founder, Board Director at Cambrian Bio.
James Peyer first appears on SEC filings in 2020.
Experience
This experience comes from James Peyer's profile and from SEC filings. For roles taken from filings, the years are when the filings name James Peyer in the role, so the role may have started earlier or lasted longer.
IO
In Search Of Current
Advisor
2025 – Present
Rapalogix Health, Inc. Current
Co-Founder & Board Chair
Cofounder and Chairman of the Board (2024 – Present)
2024 – Present · Carlsbad, CA
Develops skincare products and prescription treatments for people with skin concerns.
LA
Longevity Biotechnology Association Current
Director & Cofounder
2021 – Present
Cambrian BioPharma Inc Current
CEO, Founder, Board Director
Founder & CEO (2019 – Present)
2019 – Present · New York, NY
Develops medicines targeting metabolic decline and related chronic diseases.
AT
Amplifier Therapeutics
Executive Chair
2023 – 2026
AV
Apollo Ventures
Founder & Managing Partner
2016 – 2019
MC
McKinsey & Company
Consultant
2015 – 2016
Key Colleagues at Startups
The people James Peyer works with at each company, as listed on that company's latest Form D.
Cambrian BioPharma Inc · Form D, Jul 15, 2026
MN
Mark Nuttall
Executive officer
CA
Christian Angermeyer
Director
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Brenton Saunders
Board Director
MG
Martin Gunhaga
Director
JH
Juliette Han
Executive officer and director
Maryanna Saenko
Board Director
RE
Ruth Thieroff-Ekerdt
Executive officer
WD
William DeVaul
Chief Legal Officer
LN
Lorin Van Nuland
Director
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Paul Farr
Board Director
Rapalogix Health, Inc. · Form D, Jun 26, 2026
Rahul Mehta
Co-Founder & Chief Executive Officer
JH
Juliette Han
Board Member & Secretary
ND
Neetu Dhaliwal
Director
Brent Saunders
Co-Founder & Board Member
DD
Doris Day
Co-Founder & Board Member
David Nicholson
Board Member
Craig Gordon
Board Member