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$15.725 Billion Four-Deal Spree! Gilead Sciences Not Content Being Just the HIV Leader Gilead Sciences, Not Content as HIV Leader, Shows Strong Ambition in Oncology. On April 9, it secured global development rights for KT-200. The original developer, Kymera, will receive a $45 million milestone payment and is eligible for substantial total payments and tiered royalties. On the 100th day of 2026, Gilead made its fourth move, with a potential total deal value of approximately $15.725 billion, including the acquisition of CAR-T company Arcellx, the merger with Ouro Medicines, and the purchase of Germany's next-generation ADC company Tubulis Technologies. KT-200, the subject of this transaction, is the world’s first oral molecular glue degrader targeting CDK2, which selectively eliminates CDK2, a key driver of tumor growth, offering a more precise, safe, and effective oral treatment option for cancers dependent on CDK2 activity. Preclinical tests have shown strong activity, potential for brain penetration, and good safety.