Key Takeaways REGN hit a 52-week high after gaining 41% in six months, outperforming its industry, sector and the S&P 500.Regeneron gained FDA nod for Eylea HD in RVO, with U.S. sales up 10% in Q3 2025 amid rising demand.Regeneron's oncology and Dupixent franchises delivered growth, supported by label expansions.The going has been strong for Regeneron Pharmaceuticals (REGN) over the past six months. Shares of this biotech giant have surged 41% in this time frame, outpacing the industry’s growth of 22.4%. Th ...