Mark Massey's Portfolio: Tech and Cyclical Stocks Dominate

Mark Massey's portfolio, as of March 31, 2026, shows heavy concentration in Amazon and Transdigm, with significant shifts in holdings.

By AI Generated.May 16, 2026, 5:52 AM
Mark Massey's Portfolio: Tech and Cyclical Stocks Dominate

Key Holdings

Mark Massey's portfolio, valued at $4.13 billion as of March 31, 2026, is dominated by a select group of stocks. The largest position is in Amazon.com Inc. (AMZN), representing 38.2% of the portfolio with a value of approximately $1.58 billion. This is followed by Transdigm Group Inc. (TDG) at 25.54% ($1.05 billion) and Microsoft Corp. (MSFT) at 16.75% ($691 million).

Concentration and Sectors

The portfolio exhibits significant concentration, with the top three holdings accounting for nearly 80% of the total value. Sector-wise, Technology is the largest allocation at 16.75% (Microsoft), while Consumer Cyclical is the second largest at 38.2% (Amazon) plus 0.11% (Hilton Worldwide). Financial Services is another major sector, comprising 9.11% (Moody's Corp) plus 6.33% (Mastercard Inc) plus 3.65% (Visa Inc), totaling approximately 19.1%. The remaining allocation includes a small position in Communication Services (0.3%, Alphabet Inc) and Miscellaneous (0.11%, Hilton Worldwide).

Recent Changes

Several holdings show notable changes from the previous period. Microsoft saw a decrease in shares (-10.32%) and value, while Transdigm experienced a slight reduction (-6.21%). Conversely, Moody's Corp increased its share count by 5.84%, and Mastercard Inc saw a small increase (-3.51%). Alphabet Inc shows a dramatic decrease (-74.38%) in its position, while Hilton Worldwide also decreased significantly (-97.17%).

Investment Strategy

Based on the holdings and allocations, Mark Massey's investment strategy appears heavily tilted towards large-cap technology and cyclical consumer stocks. The portfolio's significant exposure to Amazon and Transdigm suggests a focus on high-growth potential and cyclical industries, respectively. The substantial allocation to Financial Services, including Mastercard, Visa, and Moody's, indicates a strategic interest in this sector as well. The overall strategy seems concentrated, with a preference for large, established names, though there is evidence of active management, as seen by the changes in several holdings.

Mark Massey's Portfolio: Tech and Cyclical Stocks Dominate | InsiderSet