Merus NV added Gilead Sciences Inc. to its collaboration roster, entering a deal potentially worth more than $1.5 billion. While its previous agreements have focused primarily on bispecific antibodies, the Gilead alliance takes aim at trispecifics, antibodies capable of binding three targets at once. In other news, shares of Biomx Inc. (NYSE:PHGE) jumped 194% March 6, ending the day at 68 cents, up 45 cents, on news that it was merging with fellow phage-focused company Adaptive Phage Therapeutics Inc. and raised $50 million in a concurrent private placement.