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CAT ROCK CAPITAL MANAGEMENT LP

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13F filer, CIK 1654648, GREENWICH, CT

CAT ROCK CAPITAL MANAGEMENT LP reported $810,384,481 across 16 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-11-14. Its ten largest share positions make up 82.25% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001214659-25-016662

Period
2025-09-30
Reported value
$810M
Holdings
16
Top 10 weight
82.25%
New
2
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
TKOnew+226,600$45.8M
INTUnew+54,180$37M
TDGadded+11,943$15.7M
FAadded+702,452$10.8M
LRNadded+37,761$5.62M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
TSMreduced-98,200-$27.4M
METAreduced-37,000-$27.2M
ARESexited-128,500-$22.3M
KSPIreduced-183,510-$15M
MSFTreduced-22,982-$11.9M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001214659-25-016662, largest first. % of portfolio is the value over $810,384,481, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 380,091 shares; 2024Q4: 334,491 shares; 2025Q1: 325,789 shares; 2025Q2: 307,112 shares; 2025Q3: 270,112 shares 270,112$198M24.48%-37,000Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 110,725 shares; 2024Q4: 97,125 shares; 2025Q1: 280,089 shares; 2025Q2: 248,405 shares; 2025Q3: 225,423 shares 225,423$117M14.41%-22,982Timeline
PDDPDD HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 690,159 shares; 2024Q4: 822,714 shares; 2025Q1: 675,414 shares; 2025Q2: 453,228 shares; 2025Q3: 445,228 shares 445,228$58.8M7.26%-8,000Timeline
KSPIKASPI KZ JSCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,337,833 shares; 2024Q4: 1,024,811 shares; 2025Q1: 1,013,811 shares; 2025Q2: 828,511 shares; 2025Q3: 645,001 shares 645,001$52.7M6.5%-183,510Timeline
FAFIRST ADVANTAGE CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,832,859 shares; 2024Q4: 1,849,426 shares; 2025Q1: 2,355,826 shares; 2025Q2: 2,365,917 shares; 2025Q3: 3,068,369 shares 3,068,369$47.2M5.83%+702,452Timeline
TSMTAIWAN SEMICONDUCTOR MANUFACQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 231,100 shares; 2024Q4: 206,200 shares; 2025Q1: 222,783 shares; 2025Q2: 262,876 shares; 2025Q3: 164,676 shares 164,676$46M5.68%-98,200Timeline
TKOTKO GROUP HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 226,600 shares 226,600$45.8M5.65%newTimeline
INTUINTUITQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 54,180 shares 54,180$37M4.57%newTimeline
SEMRSEMRUSH HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,292,881 shares; 2024Q4: 5,521,881 shares; 2025Q1: 5,186,842 shares; 2025Q2: 4,923,926 shares; 2025Q3: 4,739,654 shares 4,739,654$33.6M4.14%-184,272Timeline
LRNSTRIDE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 353,066 shares; 2025Q1: 217,253 shares; 2025Q2: 165,853 shares; 2025Q3: 203,614 shares 203,614$30.3M3.74%+37,761Timeline
TDGTRANSDIGM GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 5,636 shares; 2025Q2: 10,736 shares; 2025Q3: 22,679 shares 22,679$29.9M3.69%+11,943Timeline
DCBODOCEBO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,956,438 shares; 2024Q4: 1,094,869 shares; 2025Q1: 1,094,869 shares; 2025Q2: 1,094,869 shares; 2025Q3: 1,094,869 shares 1,094,869$29.9M3.69%0Timeline
MSCIMSCI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 47,646 shares; 2025Q3: 50,341 shares 50,341$28.6M3.52%+2,695Timeline
OWLBLUE OWL CAPITAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,721,395 shares; 2024Q4: 495,395 shares; 2025Q1: 1,164,446 shares; 2025Q2: 1,430,546 shares; 2025Q3: 1,212,746 shares 1,212,746$20.5M2.53%-217,800Timeline
GOOGALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 278,106 shares; 2024Q4: 246,606 shares; 2025Q1: 85,090 shares; 2025Q2: 85,090 shares; 2025Q3: 75,390 shares 75,390$18.4M2.27%-9,700Timeline
DOCUDOCUSIGN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 231,000 shares; 2024Q4: 231,000 shares; 2025Q1: 231,000 shares; 2025Q2: 231,000 shares; 2025Q3: 231,000 shares 231,000$16.7M2.05%0Timeline

Sold out in Q3 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
ARESARES MANAGEMENT CORPORATION128,500$22.3Mshares

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001214659-25-016662 base2025-11-14acceptance time not in the bulk data set