The first half of 2026 is marked by a notable turnover of CEOs across major corporations, highlighting a significant shift in corporate leadership. Tim Cook, who has led Apple Inc. for 15 years, will transition to executive chairman on September 1, 2026, after transforming the company into a $4 trillion powerhouse. OpenAI's CTO, Srinivas Narayanan, announced his resignation on April 18, 2026, to spend time with his aging parents in India, reflecting personal decisions behind some of these exits. Reed Hastings, co-founder of Netflix, will not seek re-election to the board when his term ends in June 2026, concluding nearly three decades at the streaming giant. Adobe's Shantanu Narayen will step down as CEO in late 2026, after leading the company through a successful transition to a cloud-based model, while Campbell Wilson will leave Air India in September 2026, ensuring a smooth transition during a crucial period of transformation. These changes signify a broader generational shift in leadership, as companies prepare for new growth and challenges.