Q2 2026 13F · SEC CIK 1654648
Cat Rock Capital Management LP
Hedge fundFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $431.0M
- Reported positions
- 7
- Top holdings a year, 3 yrs
- +12.6%
- Assets under management
- $968.5M
Cat Rock Capital Management LP is a hedge fund that reported 7 positions worth $431.0M in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Transdigm Group Inc (TDG, 19.6%), First Advantage Corp (FA, 17.7%), Microsoft Corp (MSFT, 17.4%). A portfolio copying its top holdings returned 12.6% a year over the last 3 years, against 20.4% for the S&P 500.
Cat Rock Capital Management LP holdings all 7 positions.
Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| TDGTransdigm Group Inc | 19.6% | +37.4% | $84.4M |
| FAFirst Advantage Corp | 17.7% | +0.0% | $76.3M |
| MSFTMicrosoft Corp | 17.4% | -19.4% | $74.8M |
| ARESAres Management Corporation | 17.1% | +12.9% | $73.9M |
| TKOTko Group Holdings Inc | 15.8% | +10.7% | $68.3M |
| MSCIMSCI Inc | 6.5% | +19.1% | $28.0M |
| TSMTaiwan Semiconductor Manufac | 5.9% | -14.8% | $25.3M |
What Cat Rock Capital Management LP bought and sold in Q2 2026, against Q1 2026.
New positions
No new positions among the largest holdings.
Added to
- TDG Transdigm Group Inc+37.4% shares
- MSCI MSCI Inc+19.1% shares
- ARES Ares Management Corporation+12.9% shares
- TKO Tko Group Holdings Inc+10.7% shares
Reduced
- MSFT Microsoft Corp-19.4% shares
- TSM Taiwan Semiconductor Manufac-14.8% shares
Sold out
- META Meta Platforms Inc Class Awas 17.6%
- KSPI Kaspi Kz Jscwas 7.3%
- PDD Pdd Holdings Incwas 7.0%
- LRN Stride Incwas 3.6%
- GOOG Alphabet Incwas 3.2%
- DCBO Docebowas 3.0%
- DOCU Docusign, Inc.was 1.7%
Share counts compared with the Q1 2026 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- -4.6% /yr
- S&P 500 +20.1%
- 3 years
- +12.6% /yr
- S&P 500 +20.4%
- 5 years
- -0.4% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q2 2026 | $431.0M | 7 |
| Q1 2026 | $643.6M | 14 |
| Q4 2025 | $697.4M | 16 |
| Q3 2025 | $810.4M | 16 |
| Q2 2025 | $793.8M | 15 |
| Q1 2025 | $753.5M | 15 |
| Q4 2024 | $765.0M | 14 |
| Q3 2024 | $882.6M | 12 |
| Q2 2024 | $892.6M | 11 |
| Q1 2024 | $873.2M | 12 |
| Q4 2023 | $659.7M | 10 |
| Q3 2023 | $671.2M | 12 |
Questions about Cat Rock Capital Management LP's portfolio
What stocks does Cat Rock Capital Management LP own?
Cat Rock Capital Management LP's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 7 positions worth $431.0M. The largest are Transdigm Group Inc (TDG) at 19.6%, First Advantage Corp (FA) at 17.7%, Microsoft Corp (MSFT) at 17.4%, Ares Management Corporation (ARES) at 17.1% and Tko Group Holdings Inc (TKO) at 15.8%.
What did Cat Rock Capital Management LP buy last quarter?
In Q2 2026, Cat Rock Capital Management LP added Transdigm Group Inc (TDG) (+37.4% shares), MSCI Inc (MSCI) (+19.1% shares) and Ares Management Corporation (ARES) (+12.9% shares), compared with its Q1 2026 filing.
What did Cat Rock Capital Management LP sell last quarter?
In Q2 2026, Cat Rock Capital Management LP sold all of Meta Platforms Inc Class A (META), sold all of Kaspi Kz Jsc (KSPI), sold all of Pdd Holdings Inc (PDD), sold all of Stride Inc (LRN), sold all of Alphabet Inc (GOOG), Microsoft Corp (MSFT) (-19.4% shares) and Taiwan Semiconductor Manufac (TSM) (-14.8% shares), compared with its Q1 2026 filing.
How has Cat Rock Capital Management LP's portfolio performed?
A portfolio copying Cat Rock Capital Management LP's 20 largest 13F holdings each quarter, from the day each filing was public, returned +12.6% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: -4.6% against +20.1%. Over 5 years: -0.4% a year against +11.6%.
When is Cat Rock Capital Management LP's next 13F filing due?
13F filings are due 45 days after each quarter ends. Cat Rock Capital Management LP's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Cat Rock Capital Management LP manage?
Cat Rock Capital Management LP reported $968.5M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $431.0M.