In the latest IPO document of Reddi, Sam Altman, CEO of OpenAI, became an important shareholder of Reddit Inc., holding 8.7% shares of Reddit, including 789456 Class A shares and 11.4 million Class B shares. Altman has a close relationship with Reddit for a long time. Altman, together with Reddit co-founder Steve Huffman and Alexis Ohanian, participated in the first class of YCombinator accelerator in 2005, and briefly served as the interim CEO of the company after the resignation of former CEO Yishan Wong. Altman, as an important shareholder of Reddit, will bring more attention to the company's IPO, especially at the intersection of AI and social media. Reddit plans to further develop its business through cooperation with AI companies, which will attract close attention from the industry.