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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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  • Performance8Q
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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 · 2025Q1
9 positions
1
T
TDGTRANSDIGM GROUP INC
Industrials·Aerospace & Defense
27.26%
of portfolio
Number of shares
979,950 sh
Holdings current value
$1.36B
Avg closing price
$1232
-5.3%
Last action
Trimmed 0.7%
2025Q4
Current $1166
2
A
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
19.90%
of portfolio
Number of shares
5,202,415 sh
Holdings current value
$989.81M
Avg closing price
$193.53
+31.8%
Last action
Trimmed 4.5%
2025Q4
Current $255.08
3
M
MSFTMICROSOFT CORP
Technology·Software - Infrastructure
19.46%
of portfolio
Number of shares
2,578,649 sh
Holdings current value
$968.00M
Avg closing price
$410.44
+1.3%
Last action
Trimmed 15.9%
2025Q4
Current $415.75
4
G
GOOGLALPHABET INC
Communication Services·Internet Content & Information
10.74%
of portfolio
Number of shares
3,454,367 sh
Holdings current value
$534.18M
Avg closing price
$152.55
+122.2%
Last action
Trimmed 4.8%
2025Q4
Current $338.89
5
M
MCOMOODYS CORP
Financial Services·Financial Data & Stock Exchanges
8.90%
of portfolio
Number of shares
950,905 sh
Holdings current value
$442.83M
Avg closing price
$400.54
+12.9%
Last action
Trimmed 12.4%
2025Q4
Current $452.35
6
M
MAMASTERCARD INCORPORATED
Financial Services·Credit Services
6.46%
of portfolio
Number of shares
586,254 sh
Holdings current value
$321.34M
Avg closing price
$488.53
+2.8%
Last action
Trimmed 6.7%
2025Q4
Current $502.38
7
V
VVISA INC
Financial Services·Credit Services
5.99%
of portfolio
Number of shares
850,412 sh
Holdings current value
$298.04M
Avg closing price
$279.08
+10.7%
Last action
Trimmed 1.9%
2025Q4
Current $308.88
8
H
HLTHILTON WORLDWIDE HLDGS INC
Consumer Cyclical·Lodging
1.25%
of portfolio
Number of shares
273,957 sh
Holdings current value
$62.34M
Avg closing price
$250.12
+33.7%
Last action
Trimmed 0.7%
2025Q3
Current $334.28
9
F
FICOFAIR ISAAC CORP
Technology·Software - Application
0.02%
of portfolio
Number of shares
670 sh
Holdings current value
$1.24M
Avg closing price
$1489
-34.2%
Last action
Exited
2025Q4
Current $979.76

Portfolio heatmap

Box size = % of portfolio · color = return since filing
TDG
27.26% · -15.7%
AMZN
19.90% · +34.1%
MSFT
19.46% · +10.8%
GOOGL
10.74% · +119.1%
MCO
8.90% · -2.9%
MA
6.46% · -8.3%
V
5.99% · -11.9%
HLT
1.25% · +46.9%
FICO
0.02% · -46.9%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.
  • Industrials1 pos$1.36B27.3%
  • Financial Services3 pos$1.06B21.4%
  • Consumer Cyclical2 pos$1.05B21.2%
  • Technology2 pos$969.2M19.5%
  • Communication Services1 pos$534.2M10.7%