Zag Bio
PrivateLast Round
Series A
Oct 28, 2025
Total Funding Raised
$80M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Zag Bio is a biotechnology company that develops thymus-targeted medicines for autoimmune diseases.
Sector
Healthcare & Life Sciences
Verticals
Biotechnology, Drug Discovery, Precision Medicine, 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.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
Zag Bio Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Oct 28, 2025 |
Key People
Founding team and executive leadership
Zag Bio Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Boxer Capital | Series A |
| Codon Capital | Series A |
| Gaingels | Series A |
| Pear VC | Series A |
| AbbVie Ventures | Series A |
| Alexandria Venture Investments | Series A |
| Sanofi Ventures | 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
Common questions about Zag Bio's valuation, stock price, and market status.