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Mark Massey · Altarock Partners LP

Period:Q1 2025
Portfolio date:Mar 31, 2025
No. of stocks:9
Portfolio value:$5.0B
CIK 0001631014·SEC EDGAR
Quarter:Q4 2025· latestQ3 2025Q2 2025Q1 2025Q4 2024
Viewing historical Q1 2025 data. Holdings + moves reflect that quarter — not current.← Back to latest
Stock% of PortfolioRecent ActivitySharesReported Price *ValueCurrent Price+/- Reported Price52 Week Low52 Week High
TDG · Transdigm Group Inc.27.26Reduce 2.06%979,950$1383.29$1,355,555,036$1215.08-12.16%$1123.61$1623.83
AMZN · Amazon Com Inc.19.90Reduce 1.44%5,202,415$190.26$989,811,478$272.68+43.32%$196.00$278.56
MSFT · Microsoft Corp.19.46Add 36.32%2,578,649$375.39$967,999,048$415.06+10.57%$356.28$555.45
GOOGL · Alphabet Inc.10.74Reduce 0.76%3,454,367$154.64$534,183,313$400.71+159.13%$156.16$402.00
MCO · Moodys Corp.8.90950,905$465.69$442,826,949$451.32-3.09%$402.28$546.88
MA · Mastercard Inc.6.46586,254$548.12$321,337,542$495.48-9.60%$480.50$601.77
V · Visa, Inc.5.99Reduce 2.80%850,412$350.46$298,035,390$318.79-9.04%$293.89$375.51
HLT · Hilton Worldwide Hldgs Inc.1.25Add 199.97%273,957$227.55$62,338,915$316.78+39.21%$241.45$344.75
FICO · Fair Isaac Corp.0.02670$1844.16$1,235,587$1126.00-38.94%$870.01$2217.60
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held. Price columns + 52-week range are placeholders pending v2 price-data feed.
Sector % analysis
5 sectors represented
Industrials
27.26
Financial Services
21.36
Consumer Cyclical
21.16
Technology
19.49
Communication Services
10.74
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Articles & Commentaries
Coming soon
Curated press + commentary about Mark Massey arrives in v2 — interviews, shareholder-letter highlights, and 13D/13G activist filings auto-aggregated from public sources.
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