Pershing Square new/increased position report: MSFT — Billionaire Bill Ackman Built a $2.1 Billion Stake in Microsoft After the Stock Slid. Is It Still a Buy?Pershing Square 新建仓/增持：MSFT — Billionaire Bill Ackman Built a $2.1 Billion Stake in Microsoft After the Stock Slid. Is It Still a Buy?
English Section
On August 6, 2026, The Motley Fool published a report stating that billionaire Bill Ackman’s Pershing Square Capital has built a $2.1 billion stake in Microsoft (MSFT), with the position established following recent stock price declines for the firm. This signal falls under the notable institutional investor position change category, providing an independent reference point for institutional ownership trends in the technology sector and for Microsoft stock specifically, as Pershing Square’s positioning is widely viewed as a sector trend indicator.
As of December 31, 2025, the latest 13F filing data shows Microsoft has 6,405 institutional holders, with total institutional holdings valued at $2.6726 trillion, representing 74.4% of the company’s float. Separately, SEC Form 4 filings for Microsoft executives and directors show that on August 5, 2026, EVP and Chief Marketing Officer Numoto Takeshi sold 4,810.353 shares at $496.48 per share, totaling approximately $2.388 million in proceeds, marking one of the recently documented insider trading actions at Microsoft.
This signal is based solely on public media reporting, and no official SEC filing from Pershing Square Capital (such as a Form 13F, Form 4, or Schedule 13D/G) has confirmed the disclosed stake change to date, so specific details and execution timing of the position cannot be fully verified.
Follow-up markers
1. Whether Pershing Square Capital will file official SEC disclosures to confirm the Microsoft stake;
2. Microsoft’s quarterly earnings report scheduled for October 28, 2026;
3. Updated institutional ownership data for Microsoft.
中文内容
2026年8月6日，《The Motley Fool》发布报道称，亿万富翁比尔·阿克曼执掌的潘兴广场资本（Pershing Square）已建仓微软（MSFT），持仓规模达21亿美元，该建仓动作发生在微软股价近期下滑之后。该信号属于知名机构投资者的持仓变动信号，为科技股板块及微软个股的机构持仓趋势提供了独立参考维度，因为潘兴广场资本的持仓动作常被市场视为行业趋势风向标。
截至2025年12月31日的最新13F备案数据显示，微软共有6405家机构持有者，总持仓市值达26726亿美元，流通股持股比例为74.4%。同期，微软内部高管及董事的SEC Form 4备案显示，2026年8月5日首席营销官Numoto Takeshi减持4810.353股，成交价每股496.48美元，套现约238.8万美元，这是近期可查的微软内部人员交易动作之一。
该信号仅基于公开媒体报道，尚未有潘兴广场资本提交的官方SEC备案（如Form 13F、Form 4或Schedule 13D/G）确认该持仓变动，因此无法完全验证该持仓的具体细节及执行时间。
后续关注
1. 潘兴广场资本是否会提交SEC官方备案披露该微软持仓；
2. 微软2026年10月28日的季度财报数据；
3. 微软机构持仓的最新变动情况。
This analysis was generated by InvestLog AI based on SEC filings, Form 4 insider transactions, Form 144 planned-sale notices, 13F institutional holdings, analyst ratings, and market data. It is for informational purposes only and does not constitute investment advice.这篇研究由 InvestLog AI 基于 SEC 披露、Form 4 内部人交易、Form 144 计划减持、13F 机构持仓、分析师评级和市场数据生成。内容仅供参考，不构成投资建议。