Zag Bio Announces $80 Million Series A

Zag Bio Announces $80 Million Series A

Nov 3, 2025

Why It Matters

The sizable Series A underscores strong investor confidence and provides Zag Bio with the resources to fast‑track its therapeutic programs, potentially reshaping the diabetes treatment landscape and attracting further market interest.

Deal Summary

Zag Bio, a Cambridge‑based biotech startup, secured $80 million in a Series A financing round led by T1D Fund and Polaris Partners. The new capital will support the company’s product development and growth initiatives.

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