Institutional Manager · CIK 0001654648
CAT ROCK CAPITAL MANAGEMENT LP
GREENWICH, CT · File #028-17327
Latest AUM
$697.4M
Positions
16
Top-10 Concentration
83.7%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | META PLATFORMS INC | META | -54,600 | -$36.0M | -$20.1M |
| EXITED | SEMRUSH HLDGS INC | 81686C104 | -4,739,654 | -$33.6M | $0 |
| NEW | ARES MANAGEMENT CORPORATION | ARES-PB | +123,100 | +$19.9M | $0 |
| ADD | TKO GROUP HOLDINGS INC | TKO | +71,411 | +$14.9M | +$1.6M |
| REDUCE | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | -37,400 | -$11.4M | +$4.1M |
| REDUCE | INTUIT | INTU | -13,300 | -$8.8M | -$1.1M |
| ADD | TRANSDIGM GROUP INC | TDG | +6,600 | +$8.8M | +$268,292 |
| REDUCE | MICROSOFT CORP | MSFT | -17,400 | -$8.4M | -$7.7M |
| REDUCE | MSCI INC | MSCI | -9,400 | -$5.4M | +$318,155 |
| ADD | FIRST ADVANTAGE CORP NEW | FA | +274,449 | +$4.0M | -$2.6M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202516 pos · $697.4M
- 13F HOLDINGS REPORTQ/E Sep 202516 pos · $810.4M
- 13F HOLDINGS REPORTQ/E Jun 202515 pos · $793.8M
- 13F HOLDINGS REPORTQ/E Mar 202515 pos · $753.5M
- 13F HOLDINGS REPORTQ/E Dec 202414 pos · $765.0M
- 13F HOLDINGS REPORTQ/E Sep 202412 pos · $882.6M
- 13F HOLDINGS REPORTQ/E Jun 202411 pos · $892.6M
- 13F HOLDINGS REPORTQ/E Mar 202412 pos · $873.2M
- 13F HOLDINGS REPORTQ/E Dec 202312 pos · $671.2M
Top 16 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | META PLATFORMS INC | META | 215,512 | $142.3M | 20.40% |
| 2 | MICROSOFT CORP | MSFT | 208,023 | $100.6M | 14.43% |
| 3 | TKO GROUP HOLDINGS INC | TKO | 298,011 | $62.3M | 8.93% |
| 4 | PDD HOLDINGS INC | PDD | 445,228 | $50.5M | 7.24% |
| 5 | KASPI KZ JSC | 48581R205 | 645,001 | $50.4M | 7.23% |
| 6 | FIRST ADVANTAGE CORP NEW | FA | 3,342,818 | $48.6M | 6.96% |
| 7 | TRANSDIGM GROUP INC | TDG | 29,279 | $38.9M | 5.58% |
| 8 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 127,276 | $38.7M | 5.55% |
| 9 | INTUIT | INTU | 40,880 | $27.1M | 3.88% |
| 10 | DOCEBO INC | DCBO | 1,094,869 | $24.3M | 3.49% |
| 11 | ALPHABET INC | GOOG | 75,390 | $23.7M | 3.39% |
| 12 | MSCI INC | MSCI | 40,941 | $23.5M | 3.37% |
| 13 | ARES MANAGEMENT CORPORATION | ARES-PB | 123,100 | $19.9M | 2.85% |
| 14 | BLUE OWL CAPITAL INC | OWL | 1,220,586 | $18.2M | 2.61% |
| 15 | DOCUSIGN INC | DOCU | 231,000 | $15.8M | 2.27% |
| 16 | STRIDE INC | LRN | 195,663 | $12.7M | 1.82% |