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Livermore
Livermore
ZHEN

Cat Rock Capital Management LP

SEC CIK
0001654648
Latest filing
Aug 14, 2026

The latest 13F from Cat Rock Capital Management LP covers Q2 2026 (filed Aug 14, 2026): 7 long positions worth $431.0M. The top 10 holdings make up 100.0% of the portfolio, and the largest is TransDigm Group INC (TDG) at 19.6%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
0
Added
4
Est. +$42.5M
Reduced
2
Est. −$22.4M
Sold out
7
Est. −$278.7M

Top 5 holdings

Share of this quarter's portfolio value

  1. TDGTransDigm Group INC
    19.6%$84.4MHistory
  2. FAFirst Advantage Corp
    17.7%$76.3MHistory
  3. MSFTMicrosoft Corp
    17.4%$74.8MHistory
  4. ARESAres Management Corp
    17.1%$73.9MHistory
  5. TKOTKO Group Holdings, Inc.
    15.8%$68.3MHistory

Share of portfolio

Top 5 holdings and the other 2 positions, by share of portfolio value

  1. TDG19.6%
  2. FA17.7%
  3. MSFT17.4%
  4. ARES17.1%
  5. TKO15.8%
  6. Other 2 positions12.4%

Biggest buys

New and added positions, by estimated amount bought

  1. TDGTransDigm Group INC
    +$23.0MAddedHistory
  2. ARESAres Management Corp
    +$8.45MAddedHistory
  3. TKOTKO Group Holdings, Inc.
    +$6.58MAddedHistory
  4. MSCIMSCI Inc.
    +$4.49MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. TDGTransDigm Group INC
    +11.28 pp8.3% → 19.6%History
  2. ARESAres Management Corp
    +7.18 pp10.0% → 17.1%History
  3. TKOTKO Group Holdings, Inc.
    +6.24 pp9.6% → 15.8%History
  4. MSCIMSCI Inc.
    +2.98 pp3.5% → 6.5%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. METAMeta Platforms, Inc.
    −$113.6MSold outHistory
  2. KSPIJoint Stock Co Kaspi.kz
    −$46.7MSold outHistory
  3. PDDPDD Holdings Inc.
    −$45.0MSold outHistory
  4. LRNStride, Inc.
    −$23.1MSold outHistory
  5. GOOGAlphabet Inc.
    −$20.6MSold outHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. METAMeta Platforms, Inc.
    −17.65 pp17.6% → 0.0%History
  2. KSPIJoint Stock Co Kaspi.kz
    −7.26 pp7.3% → 0.0%History
  3. PDDPDD Holdings Inc.
    −6.99 pp7.0% → 0.0%History
  4. LRNStride, Inc.
    −3.58 pp3.6% → 0.0%History
  5. GOOGAlphabet Inc.
    −3.20 pp3.2% → 0.0%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$431.0M
−$212.6M (−33.0%) vs. prior quarter
Positions
7
−7 vs. prior quarter
Top 10 concentration
100.0%
Top 10 as share of value
Turnover
7.9%
Q2 2026, one quarter
Average holding period
9.6 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $1.18B (Q2 2021)

Q1 2021: $1.08BQ2 2021: $1.18BQ3 2021: $1.14BQ4 2021: $1.04BQ1 2022: $961.8MQ2 2022: $469.9MQ3 2022: $448.5MQ4 2022: $543.9MQ1 2023: $710.2MQ2 2023: $725.3MQ3 2023: $671.2MQ4 2023: $659.7MQ1 2024: $873.2MQ2 2024: $892.6MQ3 2024: $882.6MQ4 2024: $765.0MQ1 2025: $753.5MQ2 2025: $793.8MQ3 2025: $810.4MQ4 2025: $697.4MQ1 2026: $643.6MQ2 2026: $431.0M
Q1 2021Q2 2026
13F filings of Cat Rock Capital Management LP by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 20267$431.0MTDGFAMSFTvs. Q1 2026SEC
Q1 2026May 15, 202614$643.6MMETAMSFTARESvs. Q4 2025SEC
Q4 2025Feb 18, 202616$697.4MMETAMSFTTKOvs. Q3 2025SEC
Q3 2025Nov 14, 202516$810.4MMETAMSFTPDDvs. Q2 2025SEC
Q2 2025Aug 14, 202515$793.8MMETAMSFTKSPIvs. Q1 2025SEC
Q1 2025May 15, 202515$753.5MMETAMSFTKSPIvs. Q4 2024SEC
Q4 2024Feb 14, 202514$765.0MMETAKSPIPDDvs. Q3 2024SEC
Q3 2024Nov 14, 202412$882.6MMETAKSPISEMRvs. Q2 2024SEC
Q2 2024Aug 14, 202411$892.6MMETAKSPISEMRvs. Q1 2024SEC
Q1 2024May 15, 202412$873.2MMETAKSPISEMRvs. Q4 2023SEC
Q4 2023Feb 14, 202410$659.7MMETASEMRDCBOvs. Q3 2023SEC
Q3 2023Nov 14, 202312$671.2MMETADCBOMSFTvs. Q2 2023SEC
Q2 2023Aug 14, 202313$725.3MMETADCBOMSFTvs. Q1 2023SEC
Q1 2023May 15, 202311$710.2MDCBOGOOGMSFTvs. Q4 2022SEC
Q4 2022Feb 14, 202312$543.9MDCBOMSFTSEMRvs. Q3 2022SEC
Q3 2022Nov 14, 202211$448.5MDCBOSEMRMSFTvs. Q2 2022SEC
Q2 2022Aug 15, 20228$469.9MDCBOSEMRMSFTvs. Q1 2022SEC
Q1 2022May 16, 202210$961.8MDCBOMETALBRDKvs. Q4 2021SEC
Q4 2021Feb 14, 20229$1.04BDCBOLBRDKMETAvs. Q3 2021SEC
Q3 2021Nov 15, 20217$1.14BLBRDKMETADCBOvs. Q2 2021SEC
Q2 2021Aug 16, 20218$1.18BLBRDKMETADCBOvs. Q1 2021SEC
Q1 2021May 17, 20217$1.08BLBRDKTDGMETA–SEC

13D and 13G filings

Companies where Cat Rock Capital Management LP reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

Cat Rock Capital Management LP does not currently report owning 5% or more of any company.

Latest filings

16 filings on file made by Cat Rock Capital Management LP or listing it as a reporting person, newest first.

Schedule 13D and 13G filings by Cat Rock Capital Management LP
CompanyFiled (ET)FormStakeChangeEvent dateFiling
SEMRSEMrush Holdings, Inc.Feb 14, 20254:52 PM ET13G/A4.50%5.52M shares–Below 5%Dec 31, 2024SEC
DCBODocebo Inc.Feb 14, 20254:43 PM ET13G/A3.60%1.09M shares–Below 5%Dec 31, 2024SEC
DCBODocebo Inc.Nov 14, 202413G/AOld format–––SEC
SEMRSEMrush Holdings, Inc.Nov 14, 202413G/AOld format–––SEC
DCBODocebo Inc.Feb 14, 202413G/AOld format–––SEC
SEMRSEMrush Holdings, Inc.Feb 14, 202413GOld format–New–SEC
DCBODocebo Inc.Jun 12, 202313G/AOld format–––SEC
DCBODocebo Inc.Feb 14, 202313G/AOld format–––SEC
Just Eat Takeaway.com N.V.Dec 15, 202213D/AOld format–––SEC
DCBODocebo Inc.Nov 15, 202213G/AOld format–––SEC
SHSPSharpSpring, Inc.Feb 14, 202213G/AOld format–––SEC
DCBODocebo Inc.Jan 10, 202213GOld format–New–SEC
Just Eat Takeaway.com N.V.Dec 21, 202113D/AOld format–––SEC
Just Eat Takeaway.com N.V.Oct 14, 202113DOld format–New–SEC
SHSPSharpSpring, Inc.Feb 16, 202113G/AOld format–––SEC
CARGCarGurus, Inc.Feb 16, 202113G/AOld format–––SEC