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Altarock Partners LLC Top Holdings and 13F Report (2026)

About Altarock Partners LLC

Investment Activity

  • Altarock Partners LLC has $4.24 billion in total holdings as of June 30, 2026.
  • Altarock Partners LLC owns shares of 8 different stocks, but just 3 companies or ETFs make up 80% of its holdings.
  • Approximately 9.77% of the portfolio was purchased this quarter.
  • About 17.37% of the portfolio was sold this quarter.
  • This quarter, Altarock Partners LLC has purchased 8 new stocks and bought additional shares in 3 stocks.
  • Altarock Partners LLC sold shares of 5 stocks and completely divested from 0 stocks this quarter.

Largest Holdings

Amazon.com
$1,365,681,526
Transdigm Group
$1,166,540,690
Microsoft
$870,808,476
Mastercard
$392,650,795
Visa
$286,984,492

Largest Purchases this Quarter

Microsoft
466,945 shares (about $174.18M)
Mastercard
241,671 shares (about $124.12M)
Visa
337,793 shares (about $115.89M)

Largest Sales this Quarter

Amazon.com
1,837,974 shares (about $438.06M)
Moody's
559,412 shares (about $253.37M)
Transdigm Group
33,413 shares (about $44.51M)
Alphabet
1,397 shares (about $499.25K)
Hilton Worldwide
139 shares (about $45.93K)

Sector Allocation Over Time

Map of 500 Largest Holdings ofAltarock Partners LLC

 
 
Selling
 
 
Neutral
 
 
Buying
Issuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSector
Amazon.com, Inc. stock logo
AMZN
Amazon.com
$1,365,681,526$438,062,723 â–¼-24.3%5,729,97232.2%Consumer Discretionary
Transdigm Group Incorporated stock logo
TDG
Transdigm Group
$1,166,540,690$44,507,453 â–¼-3.7%875,75527.5%Industrials
Microsoft Corporation stock logo
MSFT
Microsoft
$870,808,476$174,179,824 â–²25.0%2,334,48220.5%Technology
Mastercard Incorporated stock logo
MA
Mastercard
$392,650,795$124,122,226 â–²46.2%764,5079.3%Finance
Visa Inc. stock logo
V
Visa
$286,984,492$115,893,400 â–²67.7%836,4706.8%Finance
Moody's Corporation stock logo
MCO
Moody's
$137,064,462$253,368,883 â–¼-64.9%302,6243.2%Finance
Alphabet Inc. stock logo
GOOGL
Alphabet
$15,007,396$499,246 â–¼-3.2%41,9940.4%Communication Services
Hilton Worldwide Holdings Inc. stock logo
HLT
Hilton Worldwide
$5,023,653$45,934 â–¼-0.9%15,2020.1%Consumer Discretionary

Showing largest 100 holdings. View all holdings.
SEC Filings and Trading Data