Following closing, combined company plans to progress Yarrow’s lead program, YB-101, a potentially first-in-class anti-thyroid-stimulating hormone receptor (“TSHR”) antibody for Graves’ disease (“GD”) and thyroid eye disease (“TED”) Yarrow Bioscience is the seventh biotechnology company founded by RTW Investments and plans to advance in-licensed asset YB-101 (also known as GS-098) into a U.S.-based Phase 1b/2b trial in patients with GD in the first half of 2026; a Phase 1 trial in TED is being conducted in China by partner Changchun GeneScience Pharmaceutical Co., Ltd (“GenSci”) Pre-closing private financings totaling approximately $200 million expected to fund operations into 2028 Companies to…