Funds · 13F filer · West Palm Beach, FL

Altarock Partners LP

$4.2B in 8 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return−4.7%S&P 500 +20.9%
3y return+48.0%S&P 500 +68.5%
5y return+49.3%S&P 500 +74.5%
10y return+427.9%S&P 500 +256.5%

These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.

$100 invested in its stock picks

Since June 30, 2016: $528 against $357 in the S&P 500.2

Altarock Partners LPS&P 500 (SPY)
$100$55420162026

Top holdings

At the end of June 30, 2026. Change is in shares since the quarter before.2

StockValueShare of portfolioChange
AMZNAmazon.com Inc$1.4B32.2%−24.3%
TDGTransdigm Group Inc$1.2B27.5%−3.7%
MSFTMicrosoft Corp$870.8M20.5%+25.0%
MAMastercard Inc-class A$392.7M9.3%+46.2%
VVisa Inc-class A Shrs$287.0M6.8%+67.7%
MCOMoodys Corp$137.1M3.2%−64.9%
GOOGLAlphabet Inc-cl A$15.0M0.4%−3.2%
HLTHilton Worldwide$5.0M0.1%

Best picks still held

How each current holding has done since the quarter it first appeared in its filings (up to six years back).

StockHeld sinceReturn sinceNow worth
GOOGLAlphabet Inc-cl AJune 30, 2020+404.0%$15.0M
TDGTransdigm Group IncJune 30, 2020+201.3%$1.2B
VVisa Inc-class A ShrsJune 30, 2020+77.6%$287.0M
MAMastercard Inc-class AJune 30, 2020+73.7%$392.7M
MCOMoodys CorpJune 30, 2020+64.9%$137.1M
AMZNAmazon.com IncMarch 31, 2022+46.2%$1.4B
MSFTMicrosoft CorpJune 30, 2021+37.7%$870.8M
HLTHilton WorldwideDecember 31, 2024+33.7%$5.0M

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+10.6%+14.8%
March 31, 2026−13.5%−4.6%
December 31, 2025+1.6%+2.4%
September 30, 2025−1.9%+7.8%
June 30, 2025+14.7%+10.5%
March 31, 2025−4.3%−4.6%
December 31, 2024+2.7%+2.1%
September 30, 2024+3.0%+5.4%
June 30, 2024+5.9%+4.0%
March 31, 2024+12.0%+10.0%
December 31, 2023+14.7%+11.2%
September 30, 2023−1.7%−3.6%
June 30, 2023+17.6%+8.3%
March 31, 2023+16.7%+7.0%
December 31, 2022+4.1%+7.1%
September 30, 2022−8.9%−5.3%
June 30, 2022−19.3%−16.5%
March 31, 2022−7.0%−4.9%
December 31, 2021+2.3%+10.7%
September 30, 2021+1.1%+0.3%

Sources

Every number on this page points here. Each one links to the public record.

  1. 1
    CIK 1631014
  2. 2
    Filed August 17, 2026 · accession 0001104659-26-097527