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AltaRock Partners
AltaRock Partners
Concentrated compounder
$5.10B
Portfolio Value
8
Holdings
Q4 '25
Period
2026-02-13
Filed
📉
⚠️ ApproximationSimulated 13F Return
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
33.1% of portfolio
-3% shares+2.8pp
TDGREDUCED
25.3% of portfolio
-1% shares+1.7pp
MSFTREDUCED
19.7% of portfolio
-19% shares-4.6pp
MCOREDUCED
8.2% of portfolio
-14% shares-0.1pp
MAREDUCED
6.1% of portfolio
-7% shares
VREDUCED
3.6% of portfolio
-3% shares+0.2pp
GOOGLREDUCED
1.0% of portfolio
-51% shares-0.5pp
FICOSOLD
was <0.1%
Sold out position
Filing price: $1496.53
Sold Out (1)
📊 Sector Breakdown
Portfolio allocation by sector
Technology 53.9%Industrials 25.3%Financials 9.6%Unknown 8.2%Consumer Discretionary 3.1%
💼 Holdings
🔍
8 of 8 positions · $5.10B
This quarter: reduced 7, sold 1. Net seller.
| # | Stock | % Portfolio▼ | Activity | Shares | Reported Price | Value | Current Price | +/- Reported | 52w Low | 52w High | SEC | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AMZNAMAZON.COM INC | 33.1% | Reduce 3.22% | 7314534 | $230.82 | $1.69B | — | — | — | — | 📄 | |
| 2 | TDGTRANSDIGM GROUP INC | 25.3% | Reduce 0.72% | 969400 | $1329.85 | $1.29B | — | — | — | — | 📄 | |
| 3 | MSFTMICROSOFT CORP | 19.7% | Reduce 18.95% | 2082357 | $483.62 | $1.01B | — | — | — | — | 📄 | |
| 4 | MCOMOODYS CORP | 8.2% | Reduce 14.15% | 814503 | $510.85 | $416.1M | — | — | — | — | 📄 | |
| 5 | MAMASTERCARD INC-CLASS A | 6.1% | Reduce 7.23% | 541836 | $570.88 | $309.3M | — | — | — | — | 📄 | |
| 6 | VVISA INC-CLASS A SHRS | 3.6% | Reduce 3.16% | 516677 | $350.71 | $181.2M | — | — | — | — | 📄 | |
| 7 | HLTHILTON WORLDWIDE | 3.1% | Held | 542613 | $287.25 | $155.9M | — | — | — | — | 📄 | |
| 8 | GOOGLALPHABET INC-CL A | 1.0% | Reduce 50.81% | 169391 | $313.00 | $53.0M | — | — | — | — | 📄 |