Meta Platforms, Inc.

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Slightly Bullish +25

Bill Ackman, Brad Gerstner Pile Into The Same 4 Stocks – What Do They See Coming?

AI-generated analysis

πŸ‘₯ Bill Ackman (Pershing Square) and Brad Gerstner (Altimeter Capital) share four common stock holdings as of December 31, 2025.

πŸš€ Meta Platforms is a new position for Ackman in Q4 but the second-largest holding for Altimeter at 18% ($1.22 billion).

πŸ›’ Amazon ranks as Pershing Square's third-largest holding at 14% ($2.22 billion) and Altimeter's fourth-largest at 7.7% ($511.4 million).

πŸš– Uber represents Ackman's second-largest holding at 16% ($2.47 billion), while it is Altimeter's fifth-largest at 6.9% ($456.7 million).

☁️ Alphabet Class A (GOOGL) is a smaller position for Ackman at 1.4% ($212.3 million) but ranks as the ninth-largest in his portfolio.

πŸ“ˆ Altimeter significantly increased its Amazon stake by 2% and Alphabet Class A by 66% during the fourth quarter.

πŸ€Έβ€β™‚οΈ Ackman added 65% to his Amazon holdings while trimming Alphabet Class C shares by 86% and Class A by 2%.

πŸ”Ž Meta's position for Altimeter decreased by 1%, with Gerstner recently hinting it may no longer be a top holding.

βš™οΈ Ackman is known as a value and activist investor focusing on unlocking shareholder value in dominant sectors.

πŸ’Ύ Altimeter Capital focuses on long-term technology investments with a preference for "founder-friendly" companies.

Bullish Signals
  • Meta Platforms has been identified by major hedge fund managers Bill Ackman and Brad Gerstner as a significant investment opportunity, with Pershing Square acquiring a new position of $1.76 billion in the fourth quarter.
  • Brad Gerstner's Altimeter Capital ended Q4 with Meta as its second-largest holding, valued at $1.22 billion representing 18% of the fund.
  • The convergence of two top-tier investors like Ackman and Gerstner on four common stocks signals strong institutional confidence in these companies' long-term prospects.
  • Brad Gerstner increased his Amazon holdings by 2% while Bill Ackman added an even larger 65% to his Amazon stake, indicating significant capital commitment to the company.
  • Altimeter Capital significantly increased its Alphabet Inc. (GOOGL) holding by 66% in the fourth quarter, highlighting continued bullishness on the tech giant.
  • The article notes that Pershing Square maintains Uber Technologies as its second-largest holding at $2.47 billion, while Altimeter holds a 6.9% stake valued at $456.7 million.
Risk Factors
  • Meta was a new position for Ackman in the fourth quarter, suggesting potential lack of prior confidence or recent market entry uncertainty.
  • Altimeter disclosed lowering the Meta stake by 1% in the fourth quarter, signaling reduced interest despite its large holding size.
  • CNBC interview with Gerstner hinted that Meta may no longer be a top holding, indicating a possible downgrade in Altimeter's view of the stock.
  • Ackman significantly reduced his Alphabet (GOOGL) holdings by -86% in the fourth quarter, showing aggressive profit-taking or risk reduction in the tech sector.
  • The article reflects data dated Dec. 31, 2025, which may not align with current market reality and could be outdated information.
Full Analysis
As of December 31, 2025, hedge fund managers Bill Ackman of Pershing Square Capital Management and Brad Gerstner of Altimeter Capital share four common stock positions: Meta Platforms, Amazon.com Inc., Uber Technologies, and Alphabet Inc. These overlapping holdings were identified through Securities and Exchange Commission (SEC) filings for both funds in the fourth quarter. The article notes that while Ackman manages a slightly smaller number of positions than Altimeter, his portfolio includes a new position in Meta Platforms taken during the fourth quarter, alongside adjustments to several Magnificent Seven holdings. Detailed figures reveal significant variations in allocation between the two funds. For Meta Platforms, Altimeter ended the quarter with a second-largest holding at 18% of its portfolio valued at $1.22 billion, whereas Pershing Square held an 11% stake worth $1.76 billion, making it the fifth-largest holding for Ackman's fund. Amazon.com Inc. represented the fourth-largest holding for Altimeter at 7.7% ($511.4 million) and the third-largest for Pershing Square at 14% ($2.22 billion). Uber Technologies was the fifth-largest holding in Altimeter's portfolio at 6.9% ($456.7 million) but stood as the second-largest in Pershing Square at 16% ($2.47 billion). Alphabet Inc. holdings showed further divergence, with Altimeter maintaining Class A (GOOGL) shares as its 11th-largest holding at 2.4% valued at $162.5 million and increasing its Class C (GOOG) stake to the fourth largest at 13% ($1.93 billion). In contrast, Ackman held Class C shares at 1.4% ($212.3 million) and increased his Class A position at 1.4% but trimmed Class C by 86%. Portfolio changes in the fourth quarter included Altimeter lowering its Meta stake by 1%, Amazon increases of 2% for Altimeter and 65% for Ackman, Uber adjustments of less than 1% from Ackman and no change from Altimeter, and Alphabet position shifts where Altimeter added 66% to GOOGL while Ackman reduced both GOOG by 2% and GOOGL by 86%. Gerstner hinted during a CNBC interview that Meta may no longer be a top holding for Altimeter.