AlHumaid joined Al Rajhi Capital as CEO in 2020 and has since implemented four franchises: real estate investment, investment banking, and international investments custody and agency. The firm recorded assets under management of $32.86 billion in 2024, marking a growth of 61%. In 2024, it also acted as a joint bookrunner for Saudi Aramco’s $12.35 billion secondary public offering. In January 2025, the CMA announced the approval of the public offering of the Al Rajhi Global Sukuk Fund. AlHumaid is also a board member of the Gulf Investment Corporation and Al Rashid Industrial Co. He was previously general manager of asset management at HSBC Saudi Arabia.