AltaRock Partners Mark Massey

Top positions activity

Value History

Quarterly report: Q1 2026

Total portfolio value: $4.1B
TICKER CORP NAME VALUE($) SHARES +/- SHARES OWNERSHIP HISTORY
AMZN
Amazon.com Inc. 1.6B 38.19% 7.6M +253.4K ↑3.46%
TDG
Transdigm Group Incorporated 1.1B 25.53% 909.2K -60.2K ↓6.21%
MSFT
Microsoft Corporation 691.3M 16.75% 1.9M -214.8K ↓10.32%
MCO
Moody`s Corp. 376.1M 9.11% 862.0K +47.5K ↑5.84%
MA
Mastercard Incorporated - Class A 261.2M 6.33% 522.8K -19.0K ↓3.51%
V
Visa Inc - Class A 150.7M 3.65% 498.7K -18.0K ↓3.48%
Sold Out Positions
TICKER CORP NAME VALUE($) SHARES +/- SHARES
HLT
Hilton Worldwide Holdings Inc 155.9M 3.05% 542.6K Sold Out
GOOGL
Alphabet Inc - Class A 53.0M 1.03% 169.4K Sold Out