Sid Sijbrandij, co-founder of GitLab Inc., announced his transition from Chief Executive Officer to Executive Chair of the Board, effective April 18, 2026. The move allows Sijbrandij to dedicate more time to his ongoing cancer treatment and health recovery. He has been succeeded as CEO by Bill Staples, who was appointed on December 5, 2024.
Sijbrandij shared the news on X (formerly Twitter), stating, > "On today’s earnings call, I announced my transition from @GitLab’s CEO to the Executive Chair of the Board. I want more time to focus on my cancer treatment and health. My treatments are going well, my cancer has not metastasized, and I'm working towards making a full recovery." This statement provides a direct insight into the personal reasons behind the leadership change.
Sijbrandij was diagnosed with a rare form of cancer, osteosarcoma, in late 2022. He has since adopted an innovative, data-driven approach to his treatment, often described as "founder mode" or "open-source cancer." This strategy involves leveraging artificial intelligence to analyze research papers, cross-reference clinical trials, and design a personalized treatment plan.
His journey has been characterized by "radical transparency," including publishing his medical data, AI prompts, and clinical logic. This open-source approach to his health reflects GitLab's core values and aims to contribute to broader medical knowledge. The Sijbrandij Foundation has also launched initiatives to reimagine cancer treatment and other societal issues.
GitLab, a comprehensive AI-powered DevSecOps platform, was co-founded by Sijbrandij in 2014. Under his leadership, the company grew significantly, going public in 2021. His transition to Executive Chair ensures his continued involvement in the company's strategic direction while prioritizing his health.
