1114 Targeted delivery of a potent STING agonist payload via an antibody drug conjugate drives robust antitumor activity in preclinical models by Elizabeth Gray, Priyanka Gupta, Weiping Zeng, Shyra Gardai, Kaleb Smith, Katie Snead, Adam Hill, Kellie Spahr, Alyson J Smith, Elizabeth Cummins, David Gruber, Michelle L Ulrich, Mallory Long, Katelyn Hinricher, Aditi Langalia, Patrick Burke, Peter Senter