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Altarock Partners 13F Holdings and Portfolio Changes
Altarock Partners reported $4.24B in 13F securities for Q2 2026, with 8 positions. Values are as of the report date; option positions, when present, use underlying-security values. This is not complete fund assets or investment performance.
Open interactive portfolioLatest 13F portfolio changes
New or increased positions include Microsoft (MSFT), MASTERCARD INC-CLASS A (MA), and VISA INC-CLASS A SHRS (V). Reduced or exited positions include Amazon (AMZN), TRANSDIGM GROUP (TDG), MOODYS (MCO), and Alphabet (GOOGL). These are comparisons between reported positions, not a record of execution dates, prices or cash traded.
Latest filing metadata: quarter Q2 2026; report date 2026-06-30; filing date 2026-08-17; disclosure source SEC 13F.
Reported holdings and concentration
Altarock Partners's Q2 2026 13F report contains 8 positions valued at $4.24B. The largest reported holdings include Amazon, TRANSDIGM GROUP, Microsoft, MASTERCARD INC-CLASS A, and VISA INC-CLASS A SHRS.
The three largest positions in the holdings table account for approximately 80.3% of reported 13F value. The largest reported sector exposure is Consumer Discretionary at 32.3% of the disclosed portfolio.
The filing metadata lists report date 2026-06-30, filing date 2026-08-17, SEC accession 0001104659-26-097527. SEC 13F reports are normally published up to 45 days after quarter end, so the data is best used to understand institutional positioning after the fact rather than to infer today's exact portfolio.
Altarock Partners portfolio analytics
the top five positions account for 96.3% of disclosed value; the largest sector exposure is Consumer Discretionary at 32.3%; latest prices differ from modeled cost estimates by an average 1122.7% across 8 tracked positions (estimated costs, not reported purchase prices or actual investment returns).
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| AMZN whale holders AMAZON.COM INC | $1.37B | 32.2% | Reduced |
| TDG whale holders TRANSDIGM GROUP INC | $1.17B | 27.5% | Reduced |
| MSFT whale holders MICROSOFT CORP | $870.8M | 20.5% | Increased |
| MA whale holders MASTERCARD INC-CLASS A | $392.7M | 9.3% | Increased |
| V whale holders VISA INC-CLASS A SHRS | $287.0M | 6.8% | Increased |
| MCO whale holders MOODYS CORP | $137.1M | 3.2% | Reduced |
| GOOGL whale holders ALPHABET INC-CL A | $15.0M | 0.3% | Reduced |
| HLT whale holders HILTON WORLDWIDE | $5.0M | 0.1% | Reduced |
New and increased positions
Largest reported position values among additions; not amounts spent buying.
- MSFT whale holders — MICROSOFT CORP ($870.8M)
- MA whale holders — MASTERCARD INC-CLASS A ($392.7M)
- V whale holders — VISA INC-CLASS A SHRS ($287.0M)
Reduced and exited positions
Sorted by reported position value; exits use the prior report. These are not sale proceeds.
- AMZN whale holders — AMAZON.COM INC ($1.37B)
- TDG whale holders — TRANSDIGM GROUP INC ($1.17B)
- MCO whale holders — MOODYS CORP ($137.1M)
- GOOGL whale holders — ALPHABET INC-CL A ($15.0M)
- HLT whale holders — HILTON WORLDWIDE ($5.0M)
Allocation
- Consumer Discretionary: 32.3%
- Industrials: 27.5%
- Information Technology: 20.5%
- Financials: 16.0%
- Other: 3.2%
- Communication Services: 0.3%
Data notes
Report date: 2026-06-30
Disclosure source: SEC 13F
Read the original SEC filing (0001104659-26-097527)
SEC 13F filings are delayed public disclosures and do not include every asset class, short positions, or real-time trades.
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Questions about this 13F filing
What does Altarock Partners report for Q2 2026?
The filing reports 8 positions and $4.24B in 13F securities. The holdings table shows reported values and weights; option values follow the filing's reporting conventions.
What changed between filings?
New or increased positions include Microsoft (MSFT), MASTERCARD INC-CLASS A (MA), and VISA INC-CLASS A SHRS (V). Reduced or exited positions include Amazon (AMZN), TRANSDIGM GROUP (TDG), MOODYS (MCO), and Alphabet (GOOGL).
Do these amounts show how much was bought or sold?
No. The change lists are ranked by reported position value. Exited positions use their value in the prior report. These amounts are not execution prices, cash invested or sale proceeds.
Is this the current portfolio?
No. Form 13F is a quarter-end snapshot, generally filed within 45 days of quarter end. It excludes short positions and does not cover every asset. Compare the report date and filing date before using the data.