Armata Pharmaceuticals, Inc. operates as a clinical-stage biotechnology company that focuses on the development of targeted bacteriophage therapeutics for antibiotic-resistant infections worldwide. It develops its products using its proprietary bacteriophage-based technology. The company's product candidates include AP-SA02 for the treatment of Staphylococcus aureus bacteremia; AP-PA02 for Pseudomonas aeruginosa; and AP-PA03 for the treatment of pneumonia. It has research collaboration agreement with Merck Sharp & Dohme Corp. for developing synthetic bacteriophage candidates to target undisclosed infectious disease agents. The company is based in Los Angeles, California. Armata Pharmaceuticals, Inc. operates as a subsidiary of Innoviva, Inc.