The rejection of the shareholder proposal requesting a report on AI use may have a neutral to slightly negative impact on Apple's stock in the short term. Investors might have varying opinions on the importance of such disclosures. However, given Apple's size and the diverse nature of its investor base, the overall impact is likely to be limited. The decision reflects on corporate governance and transparency practices, which are increasingly important to investors, but it's unlikely to significantly alter investor confidence or Apple's market position.