Altarock Partners 13F Holdings
Altarock Partners. Growth-oriented investment firm (~$5.1B AUM).
As of the latest Q1 2026 filing, Altarock Partners (managing Altarock Partners) reported a public portfolio value of $4.1B with 8 positions. The top recent buy was AMZN. The top recent sell was TDG.
Open interactive portfolioAltarock Partners 13F portfolio overview
Altarock Partners's Q1 2026 13F holdings show Altarock Partners reporting 8 positions with a disclosed portfolio value of $4.1B. For readers searching Altarock Partners 13F holdings, Altarock Partners portfolio, or Altarock Partners holdings, the latest top holdings include Amazon, TRANSDIGM GROUP, Microsoft, MOODYS, and MASTERCARD INC-CLASS A.
The three largest reported positions add up to roughly 80.5%, which helps readers judge portfolio concentration rather than just headline AUM. The largest reported sector exposure is Consumer Discretionary at 38.3% of the disclosed portfolio. This makes the page useful for comparing the manager's actual disclosed exposure with market narratives around the same names.
The latest change data highlights reported buys such as Amazon and MOODYS and reported reductions or exits such as TRANSDIGM GROUP, Microsoft, MASTERCARD INC-CLASS A, VISA INC-CLASS A SHRS, and Alphabet. Those changes should be read as historical disclosure signals, not as real-time trade alerts.
The filing metadata lists report date 2026-03-31, filing date 2026-05-15, SEC accession 0001104659-26-062170. 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.
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| AMZN whale holders AMAZON.COM INC | $1.58B | 38.2% | Increased |
| TDG whale holders TRANSDIGM GROUP INC | $1.05B | 25.5% | Reduced |
| MSFT whale holders MICROSOFT CORP | $691.3M | 16.8% | Reduced |
| MCO whale holders MOODYS CORP | $376.1M | 9.1% | Increased |
| MA whale holders MASTERCARD INC-CLASS A | $261.2M | 6.3% | Reduced |
| V whale holders VISA INC-CLASS A SHRS | $150.7M | 3.6% | Reduced |
| GOOGL whale holders ALPHABET INC-CL A | $12.5M | 0.3% | Reduced |
| HLT whale holders HILTON WORLDWIDE | $4.7M | 0.1% | Reduced |
Top buys
- AMZN whale holders — AMAZON.COM INC ($1.58B)
- MCO whale holders — MOODYS CORP ($376.1M)
Top sells
- TDG whale holders — TRANSDIGM GROUP INC ($1.05B)
- MSFT whale holders — MICROSOFT CORP ($691.3M)
- MA whale holders — MASTERCARD INC-CLASS A ($261.2M)
- V whale holders — VISA INC-CLASS A SHRS ($150.7M)
- GOOGL whale holders — ALPHABET INC-CL A ($12.5M)
- HLT whale holders — HILTON WORLDWIDE ($4.7M)
Allocation
- Consumer Discretionary: 38.3%
- Industrials: 25.5%
- Financials: 19.1%
- Information Technology: 16.8%
- Communication Services: 0.3%
Data notes
Report date: 2026-03-31
Disclosure source: SEC 13F
13F filings are delayed public disclosures and do not include every asset class, short positions, or real-time trades.
Related investor portfolios
- Nelson Peltz 13F portfolio — Trian Fund Management
- David Einhorn 13F portfolio — Greenlight Capital
- Ruane, Cunniff & Goldfarb 13F portfolio — Ruane, Cunniff & Goldfarb
- David Tepper 13F portfolio — Appaloosa LP
- PRIMECAP Management 13F portfolio — PRIMECAP Management Company
- Dan Loeb 13F portfolio — Third Point
- Chris Hohn 13F portfolio — TCI Fund Management
- Bill Ackman 13F portfolio — Pershing Square Capital
Learn more in Whale Analyzer Academy
Frequently asked questions
What is Altarock Partners buying?
The latest tracked change data for Altarock Partners highlights reported buys such as Amazon and MOODYS. Because 13F data is historical, use it as a research trail rather than a live trade alert.
Altarock Partners 13F portfolio
The Q1 2026 SEC 13F profile for Altarock Partners and Altarock Partners shows 8 reported positions, $4.1B in disclosed portfolio value, and top holdings including Amazon, TRANSDIGM GROUP, Microsoft, MOODYS, and MASTERCARD INC-CLASS A.
Altarock Partners holdings
Altarock Partners holdings are summarized from public disclosures with reported values, weights, top buys, top sells, and filing metadata where available.
How delayed is Altarock Partners's 13F data?
SEC Form 13F requires institutional investment managers with $100M+ in US equities to disclose their holdings quarterly. Read our comprehensive 13F guide.