We break down the stocks Mark Massey and Scott Bradford (AltaRock Partners) bought, sold, and held in Q3 2024, including their holdings at the end of the quarter. All data sourced from AltaRock Partners' 13F filed on November 13, 2024.
Who are Mark Massey and Scott Bradford and AltaRock Partners?
AltaRock Partners is a highly concentrated investment firm founded by Mark Massey and Scott Bradford, both Harvard MBA graduates with distinguished investment backgrounds. Massey previously worked at Seth Klarman's Baupost Group, while Bradford gained experience at Fiduciary Management Associates. The firm maintains an extremely focused portfolio typically comprising fewer than ten holdings with a combined value of approximately $4.8 billion. AltaRock's investment philosophy centers on identifying exceptional businesses with durable competitive advantages and holding them for the long term.
Portfolio Changes in Q3 2024
New positions
AltaRock Partners did not establish any new positions during Q3 2024.
Bought
AltaRock Partners significantly increased their stakes in Amazon (AMZN) by adding 1.27 million shares and Mastercard (MA) by adding 353,000 shares, more than doubling their position in the latter.
Sold
AltaRock Partners reduced their holdings in several positions, most notably trimming Alphabet (GOOGL) by 668,205 shares and Visa (V) by 660,000 shares, while also making smaller reductions to TransDigm (TDG) and Moody's (MCO) positions.
Holdings at the end of Q3 2024
| Ticker | Company | Weight | Change | Value |
|---|---|---|---|---|
| TDG | TransDigm | 29.5% | Trimmed (-2%) | $1.5B |
| AMZN | Amazon | 19.8% | Added (+31%) | $1.01B |
| MSFT | Microsoft | 16.4% | $832.55M | |
| GOOGL | Alphabet | 10.9% | Trimmed (-17%) | $552.93M |
| MCO | Moody's | 10.0% | Trimmed (-2%) | $506.21M |
| V | Visa | 6.1% | Trimmed (-37%) | $307.5M |
| MA | Mastercard | 6.0% | Added (+132%) | $306.17M |
| FICO | Fair Isaac | 1.3% | $67.35M | |
| CHTR | Charter Communications | 0.0% | $1.95M |
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