Mark Massey - AltaRock Partners Portfolio Stock Holdings
According to the SEC 13F filed on August 17, 2026, AltaRock Partners disclosed 8 stock positions valued at approximately $4.24B as of quarter-end June 30, 2026. The largest holdings include AMAZON.COM INC, TRANSDIGM GROUP INC, and MICROSOFT CORP.
- Report Period
- June 30, 2026
- No. of Stocks
- 8
- Portfolio Value
- $4.24B
Holdings by Sector
AltaRock Partners Portfolio Holdings in Q2 2026
| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| AMAZON.COM INC | AMZN | Consumer Cyclical | 32.21% | 5,729,972 | -1,837,974 | -24.29% | $1,365,681,526 |
| TRANSDIGM GROUP INC | TDG | Industrials | 27.51% | 875,755 | -33,413 | -3.68% | $1,166,540,690 |
| MICROSOFT CORP | MSFT | Technology | 20.54% | 2,334,482 | +466,945 | +25.00% | $870,808,476 |
| MASTERCARD INC-CLASS A | MA | Financial Services | 9.26% | 764,507 | +241,671 | +46.22% | $392,650,795 |
| VISA INC-CLASS A SHRS | V | Financial Services | 6.77% | 836,470 | +337,793 | +67.74% | $286,984,492 |
| MOODYS CORP | MCO | Financial Services | 3.23% | 302,624 | -559,412 | -64.89% | $137,064,462 |
| ALPHABET INC-CL A | GOOGL | Communication Services | 0.35% | 41,994 | -1,397 | -3.22% | $15,007,396 |
| HILTON WORLDWIDE | HLT | Consumer Cyclical | 0.12% | 15,202 | -139 | -0.91% | $5,023,653 |
Showing 8 of 8 holdings in the latest reporting period.