CAT ROCK CAPITAL MANAGEMENT LP
Long book
$643.6M
Q1 2026
Positions
14
Top-10 weight
89%
concentration
Last quarter
+11.5%
SPY +14.8%
Turnover
13%
of book per quarter
Strategy in plain words
auto-generated from filingsCAT ROCK CAPITAL MANAGEMENT LP is a concentrated fundamental stock-picker, running a $643.6M US long book across 14 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. Turnover is modest: positions are typically held for years. Current anchor positions: META PLATFORMS INC-CLASS A, MICROSOFT CORP, ARES MANAGEMENT CORP - A, TKO GROUP HOLDINGS INC, TRANSDIGM GROUP INC.
Over the last 9 quarters its long book ran on average 3.6pp per quarter behind the S&P 500, beating the index in 1 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+2.7%
Q2 2024
+2.3%
Q3 2024
-0.8%
Q4 2024
-5.4%
Q1 2025
+15.0%
Q2 2025
+3.0%
Q3 2025
-7.2%
Q4 2025
-13.3%
Q1 2026
+11.5%
Sector allocation
Technology 58%
Services media 20%
Financials 12%
Industrials 10%
Long book by quarter
What does CAT ROCK own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| META META PLATFORMS INC-CLASS A | Technology | 198.5K | $113.6M | 17.6% | -7.9% |
| MSFT MICROSOFT CORP | Technology | 248.9K | $92.1M | 14.3% | +19.7% |
| ARES ARES MANAGEMENT CORP - A | Financials | 588.1K | $64.2M | 10.0% | +377.7% |
| TKO TKO GROUP HOLDINGS INC | Services media | 306.5K | $61.8M | 9.6% | +2.9% |
| TDG TRANSDIGM GROUP INC | Industrials | 46.1K | $53.4M | 8.3% | +57.4% |
| FA FIRST ADVANTAGE CORP | Technology | 4.2M | $49.7M | 7.7% | +26.5% |
| LRN STRIDE INC | Services media | 261.6K | $23.1M | 3.6% | +33.7% |
| MSCI MSCI INC | Services media | 42.0K | $22.6M | 3.5% | +2.6% |
| GOOG ALPHABET INC-CL C | Technology | 71.7K | $20.6M | 3.2% | -4.9% |
| DCBO DOCEBO INC | Technology | 1.1M | $19.2M | 3.0% | Held |
| DOCU DOCUSIGN INC | Technology | 224.6K | $10.6M | 1.7% | -2.8% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 14 | $643.6M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 18, 2026 | 16 | $697.4M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 16 | $810.4M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 15 | $793.8M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 15 | $753.5M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 14 | $765.0M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 12 | $882.6M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 11 | $892.6M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 12 | $873.2M | canonical | SEC ↗ |
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