We break down the stocks Mark Massey and Scott Bradford (AltaRock Partners) bought, sold, and held in Q4 2024, including their holdings at the end of the quarter. All data sourced from AltaRock Partners' 13F filed on February 14, 2025.
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 Q4 2024
New positions
AltaRock Partners initiated a new position in Hilton (HLT), acquiring 91,328 shares valued at $22.6 million.
Bought
The firm added to its existing Alphabet (GOOGL) position, increasing holdings by 146,896 shares, bringing the total value to $658.9 million with a strong 19.2% return.
Sold
AltaRock Partners reduced positions across multiple holdings, with the most dramatic reduction in Fair Isaac (FICO) where they sold nearly their entire stake, cutting from 34,652 shares to just 670 shares. Other significant trims included Visa (V) (-243,471 shares), Amazon (AMZN) (-124,000 shares), Moody's (MCO) (-115,714 shares), TransDigm (TDG) (-47,660 shares), Microsoft (MSFT) (-43,175 shares), and Mastercard (MA) (-33,779 shares).
New Investments in Q4 2024
| Ticker | Company | Weight | Change | Value |
|---|---|---|---|---|
| HLT | Hilton | 100.0% | NEW | $22.57M |
Hilton HLT
Mark Massey and Scott Bradford bought $22.57M of Hilton in Q4 2024. Hilton (HLT) reported strong Q1 2025 results with adjusted EPS of $1.72, beating estimates by 6.2%, though revenue narrowly missed at $2.7B. The company saw 2.5% RevPAR growth and expanded margins through strategic share repurchases (3.7M shares bought at $242.92 avg). Recent 5.14% stock surge reflects confidence in its luxury-focused pipeline and industry-leading fee growth.
- Adjusted EPS grew 12.4% YoY ($1.72 vs $1.53 in Q1 2024).
- System-wide RevPAR increased 2.5% driven by occupancy and ADR gains.
- Stock price jumped 5.14% post-earnings on upgraded growth prospects.
Holdings at the end of Q4 2024
| Ticker | Company | Weight | Change | Value |
|---|---|---|---|---|
| TDG | TransDigm | 25.7% | Trimmed (-5%) | $1.27B |
| AMZN | Amazon | 23.4% | Trimmed (-2%) | $1.16B |
| MSFT | Microsoft | 16.1% | Trimmed (-2%) | $797.33M |
| GOOGL | Alphabet | 13.3% | Added (+4%) | $658.92M |
| MCO | Moody's | 9.1% | Trimmed (-11%) | $450.13M |
| MA | Mastercard | 6.2% | Trimmed (-5%) | $308.7M |
| V | Visa | 5.6% | Trimmed (-22%) | $276.51M |
| HLT | Hilton | 0.5% | NEW | $22.57M |
| CHTR | Charter Communications | 0.0% | $2.07M | |
| FICO | Fair Isaac | 0.0% | Trimmed (-98%) | $1.33M |
Disclaimer: All posts on Scout are for informational purposes only. They are NOT a recommendation to buy or sell the securities discussed. Please do your own research and due diligence before investing your money.
