DJ Regeneron Pharmaceuticals Inc. Stock Outperforms Competitors Despite Losses On The Day

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Shares of Regeneron Pharmaceuticals Inc. $(REGN)$ slipped 1.14% to $781.72 Monday, on what proved to be an all-around mixed trading session for the stock market, with the S&P 500 Index rising 0.41% to 7,690.73 and the Dow Jones Industrial Average falling 0.07% to 51,966.03.

This was the stock's second consecutive day of losses.

Regeneron Pharmaceuticals Inc. closed 9.03% short of its 52-week high of $859.34, which the company achieved on September 3rd.

The stock demonstrated a mixed performance when compared to some of its competitors Monday, as Amgen Inc. $(AMGN)$ fell 1.76% to $424.86, Moderna Inc. (MRNA) rose 4.07% to $226.88, and Gilead Sciences Inc. (GILD) fell 1.97% to $153.11.

Trading volume (487,308) remained 224,375 below its 50-day average volume of 711,683.

Data source: Dow Jones Market Data, FactSet. Data compiled October 19, 2026.