Zag Bio

About Zag Bio

Zag Bio is a biotechnology company focused on harnessing the immune system by targeting the thymus to develop innovative treatments for autoimmune diseases. Their mission is to change treatment possibilities for millions of patients by addressing autoimmunity at its source through thymus-targeted therapies.

Products & Services

Thymus-Targeted Therapies:Bifunctional antibodies that deliver self-antigens to specialized cells in the thymus to induce T cell central tolerance and treat autoimmune diseases.

ZAG-101 in T1D:A specific program targeting Type 1 Diabetes through their innovative thymus-based approach.

Pipeline Programs:A range of therapeutic programs in development for autoimmune diseases, leveraging their proprietary platform.

Specialties

Thymus-targeted therapies Autoimmune disease treatment T cell central tolerance Bifunctional antibodies

Funding History

Debug: View Raw Funding Data

#	Type	Amount Fields	Date Fields	Investors
1	RT: Series A T: - FT: Series A	A: 80000000 MR: - FA: 80 million FAN: 80000000	D: 2025-10-28 FD: 2025-10-28	10 investors

Series A Latest

2025-10-28

$80.0M

10 investors (Pro only)

Growth Metrics

+45%

Employee Growth

YoY

3.2x

Funding Growth

Last Round

12

Markets

Operating

10K+

Customers

Active

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Team & Leadership

J

Jason F. Cole

Chief Executive Officer and Board Member

J

John D. Kulman

Chief Scientific Officer and Co-Founder

A

Alan Crane

Co-Founder and Board Chair, Entrepreneur Partner, Polaris Ventures

D

Diane Mathis

Co-Founder and The Morton Grove-Rasmussen Chair of Immunohematology and Professor of Microbiology and Immunobiology at Harvard Medical School

J

Jo Viney

Co-Founder and Board Member, CEO of Seismic Therapeutic

S

Shelley Chu

Partner Lightspeed Ventures

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Recent News

Zag Bio Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised