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AltaRock Partners

AltaRock Partners

Concentrated compounder

$4.24B

Portfolio Value

8

Holdings

Q2 '26

Period

2026-08-17

Filed

📉

Simulated 13F Return

⚠️ Approximation

Total Return

+13.57%

Q1 '25 → Q4 '25

Annualized

+18.41%/yr

S&P: +26.24%/yr

Alpha (vs S&P)

-5.61%

3 quarters tracked

1-Year Return

—

⚠️ Approximation only. 13F filings are delayed ~45 days. Options, shorts, and intra-quarter trades not captured.

📈 Recent Activity

Changes from previous quarter

AMZNREDUCED
32.2% of portfolio
-24% shares-6.0pp
TDGREDUCED
27.5% of portfolio
-4% shares+2.0pp
MSFTINCREASED
20.5% of portfolio
+25% shares+3.8pp
MAINCREASED
9.3% of portfolio
+46% shares+2.9pp
VINCREASED
6.8% of portfolio
+68% shares+3.1pp
MCOREDUCED
3.2% of portfolio
-65% shares-5.9pp
GOOGLREDUCED
0.4% of portfolio
-3% shares+0.1pp
HLTREDUCED
0.1% of portfolio
-1% shares

📊 Sector Breakdown

Portfolio allocation by sector

Technology 53.1%Industrials 27.5%Financials 16.0%Unknown 3.2%Consumer Discretionary 0.1%

💼 Holdings

🔍

8 of 8 positions · $4.24B

This quarter: increased 3, reduced 5. Net seller.

AMZNREDUCED
32.2%
32.2% of portfolio (was 38.2%, trimmed)
Filed ~$238
—📄
TDGREDUCED
27.5%
27.5% of portfolio (was 25.5%, trimmed)
Filed ~$1332
—📄
MSFTINCREASED
20.5%
20.5% of portfolio (was 16.8%, added)
Filed ~$373
—📄
MAINCREASED
9.3%
9.3% of portfolio (was 6.3%, added)
Filed ~$514
—📄
VINCREASED
6.8%
6.8% of portfolio (was 3.7%, added)
Filed ~$343
—📄
MCOREDUCED
3.2%
3.2% of portfolio (was 9.1%, trimmed)
Filed ~$453
—📄
GOOGLREDUCED
0.4%
0.4% of portfolio (was 0.3%, trimmed)
Filed ~$357
—📄
HLTREDUCED
0.1%
0.1% of portfolio (was 0.1%, trimmed)
Filed ~$330
—📄