Merck Shares Jump 12.6% on Melanoma Vaccine Trial Results Merck & Co. (MRK) closed at $152.20 on Wednesday, August 19, 2026, up 12.60% (+$17.03) after…
August 20, 2026
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Merck Shares Jump 12.6% on Melanoma Vaccine Trial Results Merck & Co. (MRK) closed at $152.20 on Wednesday, August 19, 2026, up 12.60% (+$17.03) after…