Regeneron Pharmaceuticals (REGN)

MAIA posts 17.8-month median survival in NSCLC trial, nearly tripling standard care; long-term response seen in a chemo- and immunotherapy-resistant group.

Regeneron previously won 23andMe at auction. But now the company wants to reopen bidding with an offer from its former CEO.

Regeneron Pharma stock has been in a persistent downtrend for over 280 days. Here's why you should avoid REGN.

Regeneron highlighted that about 35% of weight loss from semaglutide alone was due to lean mass loss, which combo therapies aim to reduce.

Kymera's KT-621 achieved rapid, deep STAT6 degradation and showed a strong safety profile in Phase 1, with the next trials planned through early 2026.

Separately, Regeneron on Monday also announced positive interim data from its ongoing Phase 2 trial investigating novel combinations of semaglutide and Trevogrumab with or without garetosmab for the treatment of obesity.

US stocks ended May cautiously after strong monthly gains, as renewed trade tensions with China stirred market uncertainty.

11 large-cap stocks with worst performance in last week: SMMT, PDD, REGN, BAH, OKTA, DECK, CPRT, COO, TPL, HPQ, BURL. Mixed results, lowered forecasts.

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Shares of biotech company Regeneron (NASDAQ:REGN) fell 19% in the afternoon session after the company announced mixed results from its Phase 3 trials for itepekimab, an experimental drug for Chronic Obstructive Pulmonary Disease (COPD). 

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Regeneron stock crashed Friday after the company's Sanofi-partnered COPD treatment unexpectedly failed in a Phase 3 study.

Pre-market stock analysis of S&P500 stocks on 2025-05-30: top gainers and losers in today's session.

Regeneron and Sanofi's COPD drug itepekimab cut exacerbations by 27% in one Phase 3 trial, while the second trial did not meet its main goal.