Draws on agency theory and stewardship theory, this study examines the behavior of founder-CEOs post-initial public offering (IPO) stage in terms of compensation, R&D investment, and financial performance. The results obtained from a sample of 132 firm-year observations in the French market shows that there is no difference in compensation between founder-CEOs and non-founder-CEOs. Founder Managed firms tend to invest more in R&D post-IPO. The study finds that there is no difference in financial performance between founder-managed firms and professional manager. Keywords: Founder-CEO, Executive Compensation, R&D, Corporate governance, financial performance.