Mark Massey – AltaRock Partners Portfolio Balances & Equity Value (Jun 30, 2025)

As of Jun 30, 2025, the AltaRock Partners portfolio balances reported a total equity value of $5.48B across 9 publicly traded holdings. These balances reflect the most recent SEC 13F filing dated Aug 14, 2025, providing an updated snapshot of assets under management.

The portfolio balances highlight TRANSDIGM GROUP INC (TDG) as the single largest position, accounting for 27.2% of total equity value, followed by AMAZON.COM INC (AMZN), MICROSOFT CORP (MSFT), MOODYS CORP (MCO), and others. Collectively, the top five holdings represent 90.5% of the portfolio, showing how capital is distributed among core positions and long-term investments.