Investing in human capital, especially in leadership development programs, has become the focus of many corporations. However, due to a lack of proper training evaluation, many companies fail to measure the impact of the training. Through evaluation, companies can also identify part of the training which still lacks and subsequently improve it. This study sought to evaluate a leadership development program held by one of Indonesia's state-owned enterprise corporate universities, conducted on the behavior level of Kirkpatrick's training evaluation model. With 360-degree feedback complemented by in-depth interviews of selected participants, the study found that the participants improved their leadership competencies after the training. This study gives rise to a simple and straightforward method for evaluating a leadership program.