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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  1. Home/
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  3. Altarock Partners
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Altarock Partners

Share
  • Hedge Fund · CIK 0001631014
  • Consumer-Focused
  • Highly Concentrated
  • Mid-Size Fund

Altarock Partners, a hedge fund overseeing $5.10B in disclosed equity holdings (SEC CIK 0001631014). The latest portfolio (2025Q4) discloses 8 positions across 5 sectors, with the largest positions in AMZN, TDG and MSFT. On a mark-to-market basis the tracked portfolio has returned 24.0% since 2024Q1. OpenStocks tracks 8 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Altarock's filingsView holdings↓
Portfolio
$5.10B
Positions
8
Quarter
2025Q4
Filings tracked
8
Since filing+24.0%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q1

Holdings

Sorted by value · 2024Q1
8 positions
1
T
TDGTRANSDIGM GROUP INC
Industrials·Aerospace & Defense
30.61%
of portfolio
Number of shares
1,156,398 sh
Holdings current value
$1.42B
Avg closing price
$1232
-5.3%
Last action
Trimmed 0.6%
2025Q4
Current $1166
2
A
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
16.30%
of portfolio
Number of shares
4,204,460 sh
Holdings current value
$758.40M
Avg closing price
$193.53
+31.8%
Last action
Trimmed 5.5%
2025Q4
Current $255.08
3
M
MSFTMICROSOFT CORP
Technology·Software - Infrastructure
15.86%
of portfolio
Number of shares
1,754,186 sh
Holdings current value
$738.02M
Avg closing price
$410.44
+1.3%
Last action
Trimmed 21.7%
2025Q4
Current $415.75
4
G
GOOGLALPHABET INC
Communication Services·Internet Content & Information
13.90%
of portfolio
Number of shares
4,285,110 sh
Holdings current value
$646.75M
Avg closing price
$152.55
+122.2%
Last action
Trimmed 3.9%
2025Q4
Current $338.89
5
V
VVISA INC
Financial Services·Credit Services
10.67%
of portfolio
Number of shares
1,778,383 sh
Holdings current value
$496.31M
Avg closing price
$279.08
+10.7%
Last action
Trimmed 0.9%
2025Q4
Current $308.88
6
M
MCOMOODYS CORP
Financial Services·Financial Data & Stock Exchanges
6.76%
of portfolio
Number of shares
800,135 sh
Holdings current value
$314.48M
Avg closing price
$400.54
+12.9%
Last action
Trimmed 14.4%
2025Q4
Current $452.35
7
C
CHTRCHARTER COMMUNICATIONS INC N
Communication Services·Telecom Services
3.15%
of portfolio
Number of shares
504,868 sh
Holdings current value
$146.73M
Avg closing price
$290.63
-16.8%
Last action
Exited
2025Q1
Current $241.78
8
M
MAMASTERCARD INCORPORATED
Financial Services·Credit Services
2.76%
of portfolio
Number of shares
267,033 sh
Holdings current value
$128.60M
Avg closing price
$488.53
+2.8%
Last action
Trimmed 13.7%
2025Q4
Current $502.38

Portfolio heatmap

Box size = % of portfolio · color = return since filing
TDG
30.61% · -5.3%
AMZN
16.30% · +41.4%
MSFT
15.86% · -1.2%
GOOGL
13.90% · +124.5%
V
10.67% · +10.7%
MCO
6.76% · +15.1%
CHTR
3.15% · -16.8%
MA
2.76% · +4.3%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.
  • Industrials1 pos$1.42B30.6%
  • Financial Services3 pos$939.4M20.2%
  • Communication Services2 pos$793.5M17.1%
  • Consumer Cyclical1 pos$758.4M16.3%
  • Technology1 pos$738.0M15.9%