Altarock Partners LP
In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 14, 2025), Altarock Partners LP reported 10 stock positions worth $4.9 billion. Its top holding was Transdigm (TDG) at 25.7% of the portfolio, followed by Amazon.com (AMZN, 23.4%) and Microsoft (MSFT, 16.1%). Compared with Q3 2024, it opened 1 new position, added to 1 and reduced 7. The biggest buy was Alphabet Class A (GOOGL, shares +4%) and the biggest sale Transdigm (TDG, shares −5%).
- Most Recent 13F
- Q2 2026
- Location
- WEST PALM BEACH, FL
- CIK
- 0001631014
- Portfolio Value
- $4.9B (Q4 2024)
- SEC Filing
- 0001104659-25-014306 ↗ filed Feb 14, 2025
Holdings Value
Holdings 10 stocks · $4.9B
| TDG Transdigm Group Inc. | 25.65% | 1,000,604 | $1.3B | Reduce -4.5% |
| AMZN Amazon.com Inc. | 23.42% | 5,278,320 | $1.2B | Reduce -2.3% |
| MSFT Microsoft Corp. | 16.13% | 1,891,641 | $797.3M | Reduce -2.2% |
| GOOGL Alphabet Inc. Class A | 13.33% | 3,480,801 | $658.9M | Add +4.4% |
| MCO Moody's Corp. | 9.11% | 950,905 | $450.1M | Reduce -10.8% |
| MA Mastercard Inc. Class A | 6.24% | 586,254 | $308.7M | Reduce -5.5% |
| V Visa Inc. Class A | 5.59% | 874,912 | $276.5M | Reduce -21.8% |
| HLT Hilton Worldwide Holdings Inc. | 0.46% | 91,328 | $22.6M | New |
| CHTR Charter Communications Inc. Class A | 0.04% | 6,025 | $2.1M | No change |
| FICO Fair Isaac Corp. | 0.03% | 670 | $1.3M | Reduce -98.1% |
Portfolio Sells Q3 2024 → Q4 2024
| TDG Transdigm Group Inc. | Reduce -4.5% | 25.65% | −3.81 |
| FICO Fair Isaac Corp. | Reduce -98.1% | 0.03% | −1.30 |
| MCO Moody's Corp. | Reduce -10.8% | 9.11% | −0.86 |
| V Visa Inc. Class A | Reduce -21.8% | 5.59% | −0.46 |
| MSFT Microsoft Corp. | Reduce -2.2% | 16.13% | −0.27 |
| MA Mastercard Inc. Class A | Reduce -5.5% | 6.24% | +0.21 |
| AMZN Amazon.com Inc. | Reduce -2.3% | 23.42% | +3.60 |
Portfolio Buys Q3 2024 → Q4 2024
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 8 | $4.2B | AMZN, TDG, MSFT, MA, V |
| Q1 2026 | 8 | $4.1B | AMZN, TDG, MSFT, MCO, MA |
| Q4 2025 | 8 | $5.1B | AMZN, TDG, MSFT, MCO, MA |
| Q3 2025 | 9 | $5.5B | AMZN, MSFT, TDG, MCO, MA |
| Q2 2025 | 9 | $5.5B | TDG, AMZN, MSFT, MCO, MA |
| Q1 2025 | 9 | $5.0B | TDG, AMZN, MSFT, GOOGL, MCO |
| Q4 2024 | 10 | $4.9B | TDG, AMZN, MSFT, GOOGL, MCO |
| Q3 2024 | 9 | $5.1B | TDG, AMZN, MSFT, GOOGL, MCO |
| Q2 2024 | 9 | $4.9B | TDG, MSFT, AMZN, GOOGL, V |
| Q1 2024Amended | 8 | $4.7B | TDG, AMZN, MSFT, GOOGL, V |