Mark Massey - AltaRock Partners Portfolio Balances (Dec 31, 2025)

As of Dec 31, 2025, the AltaRock Partners portfolio balances reported a total equity value of $5.10B across 8 publicly traded holdings. These balances reflect the most recent SEC 13F filing dated Feb 13, 2026, providing an updated snapshot of assets under management.

The portfolio balances highlight AMAZON.COM INC (AMZN) as the single largest position, accounting for 33.1% of total equity value, followed by TRANSDIGM GROUP INC (TDG), MICROSOFT CORP (MSFT), MOODYS CORP (MCO), and others. Collectively, the top five holdings represent 92.4% of the portfolio, showing how capital is distributed among core positions and long-term investments.