Sling Nets $123M to Push Eye Drug Into Phase 3
The Ann Arbor biotech closed a $123 million Series C on 16 September 2026, led by Forbion, to carry linsitinib — an oral pill it says is the only IGF-1R inhibitor in late-stage development for thyroid eye disease — through its pivotal ORBIT trial and toward a filing that would challenge Amgen's infused Tepezza.