AltaRock Partners Mark Massey

Top positions activity

Value History

Quarterly report: Q3 2025

Total portfolio value: $5.5B
TICKER CORP NAME VALUE($) SHARES +/- SHARES OWNERSHIP HISTORY
AMZN
Amazon.com Inc. 1.7B 30.34% 7.6M +1.3M ↑20.43%
MSFT
Microsoft Corporation 1.3B 24.33% 2.6M -9.4K ↓0.36%
TDG
Transdigm Group Incorporated 1.3B 23.53% 976.4K -3.6K ↓0.36%
MCO
Moody`s Corp. 452.1M 8.26% 948.7K -3.5K ↓0.37%
MA
Mastercard Incorporated - Class A 332.2M 6.07% 584.1K -2.2K ↓0.37%
V
Visa Inc - Class A 182.1M 3.33% 533.5K -1.9K ↓0.35%
HLT
Hilton Worldwide Holdings Inc 140.8M 2.57% 542.6K -2.0K ↓0.36%
GOOGL
Alphabet Inc - Class A 83.7M 1.53% 344.4K -701.0K ↓67.06%