Alex Captain's portfolio
In the Q2 2026 13F, filed August 14, 2026, Cat Rock Capital Management reported 7 US stock positions worth $431M. The largest was Transdigm Group (TDG) at 19.6% of the portfolio. Added to: Transdigm Group (TDG) and Ares Management (ARES). The Q3 2026 13F is due by November 14, 2026.
What changed in Q2 2026
Compared with the previous 13F. Values are as reported at quarter end. How to read a 13F.
New positions
None this quarter.
Added to
- Transdigm GroupTDG$84M
- Ares ManagementARES$74M
- TKO GroupTKO$68M
- MSCIMSCI$28M
Trimmed
Sold out
None this quarter.
Holdings
7 US-listed positions in the Q2 2026 13F, largest first.
| Stock | % of portfolio | Value | Shares | Last quarter |
|---|---|---|---|---|
| Transdigm GroupTDG | 19.57% | $84M | 63,339 | Added |
| First AdvantageFA | 17.71% | $76M | 4,228,018 | Held |
| MicrosoftMSFT | 17.36% | $75M | 200,603 | Trimmed |
| Ares ManagementARES | 17.15% | $74M | 664,000 | Added |
| TKO GroupTKO | 15.84% | $68M | 339,211 | Added |
| MSCIMSCI | 6.50% | $28M | 50,005 | Added |
| Taiwan Semiconductor ManufacturingTSM | 5.87% | $25M | 52,976 | Trimmed |
By sector
Share of the reported value.
Reported value over time
Total 13F value at each quarter end.
Questions
What stocks does Alex Captain own?
In the Q2 2026 13F, Cat Rock Capital Management reported 7 US stock positions worth $431M. The largest: Transdigm Group (TDG) 19.6%, First Advantage (FA) 17.7%, Microsoft (MSFT) 17.4%, Ares Management (ARES) 17.1%, TKO Group (TKO) 15.8%.
What did Alex Captain buy last quarter?
In Q2 2026: added to Transdigm Group (TDG); added to Ares Management (ARES); added to TKO Group (TKO).
What did Alex Captain sell last quarter?
In Q2 2026: cut Microsoft (MSFT); cut Taiwan Semiconductor Manufacturing (TSM).
When is Alex Captain's next 13F?
13F filings are due 45 days after each quarter ends. The Q3 2026 filing is due by November 14, 2026.
More investors
13F filings list US-listed long positions (and some options) held at quarter end. They leave out short positions, cash, bonds and non-US holdings, and arrive up to 45 days after the quarter ends, so the investor may have traded since. Information only, not investment advice.