Sanofi is rated a Buy, with ~33.5% upside to €99.5 fair value (or $57 for SNY ADRs), resulting from averaging optimistic with pessimistic scenarios. Dupixent remains Sanofi's key growth driver, with a €25B 2030 sales target, but faces biosimilar risk post-2031 and a significant lawsuit threat. New pharma launches and pipeline assets are expected to offset legacy declines, targeting €10B in 2030 sales and with possible margin expansion toward 40%.