AltaRock Partners portfolio: Q2 2026 13F
Every US-listed position AltaRock Partners reported in its 13F for Q2 2026, the quarter ended Jun 30, 2026, filed with the SEC on Aug 17, 2026. 8 positions at the quarter end, with none opened or closed during it.
Holdings at Q2 2026
| Ticker | Company | Allocation | Value | Shares | Change |
|---|---|---|---|---|---|
| AMZN | Amazon.com Inc | 32.21% | $1.37B | 5,729,972 | Trimmed |
| TDG | TransDigm Group Inc | 27.51% | $1.17B | 875,755 | Trimmed |
| MSFT | Microsoft Corp | 20.54% | $870.81M | 2,334,482 | Added |
| MA | Mastercard Inc | 9.26% | $392.65M | 764,507 | Added |
| V | Visa Inc. | 6.77% | $286.98M | 836,470 | Added |
| MCO | Moody's Corp | 3.23% | $137.06M | 302,624 | Trimmed |
| GOOGL | Alphabet Inc. | 0.35% | $15.01M | 41,994 | Trimmed |
| HLT | Hilton Worldwide Holdings Inc. | 0.12% | $5.02M | 15,202 | Trimmed |
What changed in Q2 2026
| Action | Ticker | Company | Share change | Value |
|---|---|---|---|---|
| Trimmed | AMZN | Amazon.com Inc | -1,837,974 | $1.37B |
| Trimmed | TDG | TransDigm Group Inc | -33,413 | $1.17B |
| Added | MSFT | Microsoft Corp | +466,945 | $870.81M |
| Added | MA | Mastercard Inc | +241,671 | $392.65M |
| Added | V | Visa Inc. | +337,793 | $286.98M |
| Trimmed | MCO | Moody's Corp | -559,412 | $137.06M |
| Trimmed | GOOGL | Alphabet Inc. | -1,397 | $15.01M |
| Trimmed | HLT | Hilton Worldwide Holdings Inc. | -139 | $5.02M |
About these holdings
The 13F on record for AltaRock Partners (AltaRock Partners LP), filed on Aug 17, 2026, reports 8 positions as of Jun 30, 2026. The largest is Amazon.com Inc (AMZN) at 32.2% of the reported portfolio, followed by TransDigm Group Inc (TDG, 27.5%) and Microsoft Corp (MSFT, 20.5%). The three largest make up 80.3% of it. Against the previous quarter, it added to 3 and trimmed 5. The largest position it added to is Microsoft Corp (MSFT), now 20.5%.
Amazon.com Inc (AMZN), the largest position, is also held by 32 other investors tracked here. Of those, Josh Tarasoff, Seth Klarman, Dennis Hong and David Tepper hold the most of it as a share of their own portfolios. It is also the largest position of George Soros, David Tepper, Seth Klarman and Josh Tarasoff.
Other investors
John PaulsonGlenn WellingLi LuBryan LawrenceNelson PeltzJosh TarasoffGuy SpierPat Dorsey