Mergers and Acquisitions (M&A) are important strategies used by companies for growth and expansion. This study examines how M&A activities affect shareholder wealth, which is measured through changes in stock prices and market value. It analyzes how the stock market reacts to merger announcements and whether these deals create value for shareholders. Using secondary data, the study looks at stock price movements before and after M&A announcements. The research aims to help investors, managers, and policymakers understand the impact of M&A on shareholder value.