How much of Regeneron revenue comes from haram?

Is Regeneron Stock Halal?

To answer the question of how comfortable we are investing in Regeneron (REGN) from a Halal perspective, we answer the following three questions:
1. How much of Regeneron’s revenue comes from haram?
2. Does Regeneron rely on interest to operate?
3. What is Regeneron’s Environmental, Social, and Governance (ESG) impact?