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Stephen Bloch

Chief executive officer and co-founder of Allyx Therapeutics.

ExecutiveDirectorPublic company
Updated Nov 8, 2026·Latest SEC filing Oct 21, 2026·Suggest an edit

About Stephen Bloch

Bloch is chief executive officer and co-founder of Allyx Therapeutics. Allyx develops oral medicines for Alzheimer’s and other neurodegenerative diseases. He also co-founded EvolveImmune Therapeutics and serves as its chief executive. EvolveImmune develops immune-based cancer treatments.

Bloch worked at Canaan as a general partner for almost two decades, helping launch and fund health care companies. He previously practiced medicine. He is also an Allyx director. He chairs EvolveImmune. He chairs Liquidia’s board and serves on the Dartmouth-Geisel Medical School Board of Advisors. BioCT named him its 2023 Entrepreneur of the Year. He earned an undergraduate degree at Dartmouth, a master’s at Harvard and a medical degree from Rochester. He completed radiology residency at Massachusetts General Hospital/Harvard and internal medicine residency at Lenox Hill Hospital/Cornell.

Experience

This experience comes from official bios, from Stephen Bloch's profile and from SEC filings. For roles taken from filings, the years are when the filings name Stephen Bloch in the role, so the role may have started earlier or lasted longer.

Allyx Therapeutics, Inc. Current
CEO & Co-Founder, director
2021 – Present · New Haven, CT
A clinical-stage drug developer building oral treatments to protect brain-cell connections from neurodegenerative disease.
Liquidia Corp Current
Chairman Of The Board
2018 – Present · Public company (LQDA)
Canaan Current
general partner
2002 – Present
EvolveImmune Therapeutics Current
Co-founder and CEO
Chairman
Liquidia Technologies Inc
Director
2018 – 2020 · Public company (LQDA)
Marinus Pharmaceuticals, Inc.
Director
2014 – 2016 · Public company (MRNS)
Active Network Inc.
10% owner
2011 – 2012 · Public company (ACTV)
Amicus Therapeutics, Inc.
Director and 10% owner
2007 – 2009 · Public company (FOLD)
Radiology Management Sciences
Chief Executive Officer
1995 – 2002
Arthur D. Little
consultant
1994 – 1995

Key Colleagues at Startups

The people Stephen Bloch works with at each company, as listed on that company's latest Form D.

Allyx Therapeutics, Inc. · Form D/A, Oct 21, 2026
SS
Stephen Strittmatter
Scientific Founder and director
Paul Fonteyne
Paul Fonteyne
Co-Founder and director
GH
Gregory Ho
Director
TS
Timothy Siegert
COO & Co-Founder
Kevin Rakin
Kevin Rakin
Director

Stephen Bloch in the News

Sources

  1. SECAllyx Therapeutics, Inc. Form D/A, filed Oct 21, 2026
  2. SECForms 3, 4 and 5 filed by Stephen Bloch (SEC filer 1400308)
  3. P4Allyx Therapeutics home