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Jonathan Kagan

Jonathan Kagan

Scientific co-founder and distinguished scientist at ai3Bio

ExecutiveDirector
Updated Nov 6, 2026·Latest SEC filing Nov 4, 2026·Suggest an edit

About Jonathan Kagan

Jonathan Kagan is ai3Bio's scientific co-founder and distinguished scientist. ai3Bio is developing lipid nanoparticle and antibody therapies that remove the T cells that drive autoimmune disease. He is also the Marian R. Neutra, Ph.D. Professor of Pediatrics at Harvard Medical School. He directs Basic Research and holds the Shwachman Chair in Gastroenterology at Boston Children's Hospital.

He previously served as president of Corner Therapeutics, which he co-founded, and sat on its board of directors.

Experience

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

AI3 Bio, Inc. Current
Scientific Co-founder and Distinguished Scientist
2024 – Present · Watertown, MA
ai3Bio develops lipid nanoparticle and antibody drugs that remove the T cells driving autoimmune disease, for patients living with these conditions.
Harvard Medical School Current
Marian R. Neutra, Ph.D. Professor of Pediatrics
Boston Children's Hospital Current
Director of Basic Research and Shwachman Chair in Gastroenterology
Corner Therapeutics
President
Director

Key Colleagues at Startups

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

AI3 Bio, Inc. · Form D, Nov 4, 2026
Steven Altschuler
Steven Altschuler
CEO, Board Director
ML
Michael Lyman
Executive officer
NS
Nick Seaver
CFO/CBO, Board Director
AE
Alan Ezekowitz
Board Director

Jonathan Kagan in the News

Sources

  1. SECAI3 Bio, Inc. Form D, filed Nov 4, 2026
  2. P1Home | ai3Bio
  3. P2About | ai3Bio
  4. P4ai3Bio Launches with $48 Million in Series A Funding to Reset the Immune System at Its Root | ai3Bio