According to @StockMKTNewz, multiple marquee investors including Warren Buffett and Bill Ackman updated their portfolios this week, with a thread outlining their largest holdings as of the end of Q3 2025 (source: @StockMKTNewz, Nov 16, 2025). According to @StockMKTNewz, the thread begins with Berkshire Hathaway’s positions, providing a snapshot of where major institutional capital was concentrated at Q3-end for trading reference (source: @StockMKTNewz). According to the U.S. SEC, quarterly equity holdings by qualifying managers are disclosed on Form 13F up to 45 days after quarter-end, offering traders a standardized view into institutional long positions for the prior quarter (source: U.S. SEC, Form 13F).

According to @StockMKTNewz, Chris Hohn and TCI Fund Management have updated their $53 billion portfolio, with positions reported as of the end of Q3 2025 (September 30), source: @StockMKTNewz. The post confirms the holdings timing reference as September 30, establishing the cutoff date for any comparisons to subsequent market action, source: @StockMKTNewz. No position-level details or weights are provided in the shared snippet, source: @StockMKTNewz.

According to @StockMKTNewz, Terry Smith and Fundsmith have updated their $19.8 billion portfolio, detailing what they held as of September 30, the end of Q3 2025. Source: @StockMKTNewz. The post highlights the fund’s quarter-end holdings snapshot for trader review. Source: @StockMKTNewz.

According to @StockMKTNewz, value investor Chuck Akre has updated his portfolio with holdings listed as of the end of Q3, signaling a fresh quarter-end disclosure for review. Source: @StockMKTNewz. This timing aligns with Form 13F reporting, which requires institutional managers to disclose quarter-end long U.S. equity positions within 45 days after quarter close. Source: U.S. SEC Form 13F guidance. For actionable trading prep, verify Akre Capital Management’s Q3 2025 Form 13F on the SEC EDGAR system to identify net new positions, largest increases or trims, and top weights that could attract follow-through volume post-disclosure. Source: U.S. SEC EDGAR; @StockMKTNewz. The source post does not list individual tickers or weights, so no stock-specific signals can be confirmed from the post alone. Source: @StockMKTNewz. No cryptocurrency holdings are referenced in the source, indicating no direct BTC or ETH catalysts from this update. Source: @StockMKTNewz.

According to @StockMKTNewz, David Tepper’s Appaloosa has updated its portfolio and shared a Q3 2025 quarter-end holdings snapshot (source: @StockMKTNewz, Nov 13, 2025). According to @StockMKTNewz, the positions reflect data as of the end of Q3 2025, giving traders a clear baseline date to compare against subsequent updates for detecting allocation shifts and potential flow signals (source: @StockMKTNewz, Nov 13, 2025).