Zag Bio
PrivateLast Round
Series A
Oct 28, 2025
Total Funding Raised
$80M
Company Overview
Zag Bio is a biotechnology company that develops thymus-targeted medicines for autoimmune diseases. The company's platform designs bifunctional antibodies to deliver tolerizing antigens to the thymus, aiming to restore central immune tolerance.
Sector
Healthcare & Life Sciences
Verticals
Biotechnology, Drug Discovery, Clinical Trials
Business Model
B2B
Customer Profile
Revenue Share, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Zag Bio Comps
Public and private peers based on sector, stage, and business model.
Zag Bio Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Oct 28, 2025 |
Zag Bio Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Boxer Capital | Series A |
| Codon Capital | Series A |
| Regeneron Ventures | Series A |
| Gaingels | Series A |
| Pear VC | Series A |
| AbbVie Ventures | Series A |
| Alexandria Venture Investments | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jan 27, 2026
Appointed Jan Hillson, M.D., with 20+ years of clinical development experience.
- Jan 27, 2026
Jason Cole steps down, Jan appointed as new CEO.
Zag Bio Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
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