This study examines the direct and moderating effects of Financial Technology (FinTech) on bank share price, alongside earnings per share (EPS) and corporate social responsibility (CSR), using a balanced panel of 19 banks listed on the Dhaka Stock Exchange, Bangladesh, from 2014 to 2023. Iterated feasible generalized least squares (FGLS) with heteroskedasticity and AR(1) corrections is used as the main estimator, with panel-corrected standard errors (PCSE) as a robustness check. Grounded in Signal Overvaluation Theory, the results show that EPS is the strongest and most consistent determinant of share price, while CSR shows a positive but less robust association. FinTech has no significant direct effect on share price; however, it significantly strengthens the positive EPS-share price relationship, with no significant moderating effect on CSR. These findings suggest that digital transformation creates market value mainly when combined with strong profitability rather than as a standalone signal. The study contributes new market-based evidence on FinTech's role in an emerging economy and offers implications for bank managers, investors, and regulators pursuing sustainable financial development aligned with SDG 8 and SDG 9.