Moderna's shares have surged by over 24% in the past week, propelled by resilient COVID vaccine sales and favorable quarterly results. The stock further jumped more than 6% following the FDA's unexpected decision to review its new seasonal flu vaccine candidate, reversing a previous rejection. Despite ongoing legal challenges, including a lawsuit from BioNTech, Moderna's financial position remains strong, bolstered by a significant drop in operating expenses and a promising pipeline of future products.