0001620463 2026-09-18 2026-09-18 0001620463 false 8-K 2026-09-18 LeonaBio, Inc. DE 001-39503 45-3368487 18706 North Creek Parkway Suite 104 Bothell WA 98011 425 620-8501 false false false false Common Stock, $0.0001 par value per share LONA NASDAQ false