Shares of Axsome Therapeutics Inc. AXSM, -0.97% tumbled about 10.0% in premarket trading on Monday after the company said in a securities filing that Teva Pharmaceutical Industries Ltd. TEVA, +0.39% is seeking approval from the Food and Drug Administration to market a generic version of Auvelity, Axsome’s depression treatment. Axsome’s stock has gained 95.8% over the past year, while the S&P 500 SPX, +1.14% declined 7.6%.
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