AltaRock Partners Mark Massey

Top positions activity

Value History

Quarterly report: Q4 2025

Total portfolio value: $5.1B
TICKER CORP NAME VALUE($) SHARES +/- SHARES OWNERSHIP HISTORY
AMZN
Amazon.com Inc. 1.7B 33.1% 7.3M -243.7K ↓3.22%
TDG
Transdigm Group Incorporated 1.3B 25.27% 969.4K -7.0K ↓0.72%
MSFT
Microsoft Corporation 1.0B 19.74% 2.1M -486.9K ↓18.95%
MCO
Moody`s Corp. 416.1M 8.15% 814.5K -134.2K ↓14.15%
MA
Mastercard Incorporated - Class A 309.3M 6.06% 541.8K -42.2K ↓7.23%
V
Visa Inc - Class A 181.2M 3.55% 516.7K -16.8K ↓3.16%
HLT
Hilton Worldwide Holdings Inc 155.9M 3.05% 542.6K =
GOOGL
Alphabet Inc - Class A 53.0M 1.03% 169.4K -175.0K ↓50.81%