OpenStocks
Smart money
  • Super investors
  • Most popular stocks
  • Biggest buys
  • Biggest sells
  • New positions
  • Smart-money signals
Insiders
  • Insider trading
  • Browse insiders
  • Transactions feed
  • Insider trading RSS
Congress
  • Congress stock trades
  • All members of Congress
  • Trades by committee
  • Congress trades RSS
Markets
  • ETFs
  • Sectors
  • Industries
  • Stock screener
  • Daily market digest
  • Blog
Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
Logos by elbstream.com
  1. Home/
  2. Super Investors/
  3. Altarock Partners
  • Overview
  • Portfolio8
  • Performance8Q
  • Options
  • Activity51
  • News

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 · 2024Q4
10 positions
1
T
TDGTRANSDIGM GROUP INC
Industrials·Aerospace & Defense
25.65%
of portfolio
Number of shares
1,000,604 sh
Holdings current value
$1.27B
Avg closing price
$1232
-5.3%
Last action
Trimmed 0.7%
2025Q4
Current $1166
2
A
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
23.42%
of portfolio
Number of shares
5,278,320 sh
Holdings current value
$1.16B
Avg closing price
$193.53
+31.8%
Last action
Trimmed 4.4%
2025Q4
Current $255.08
3
M
MSFTMICROSOFT CORP
Technology·Software - Infrastructure
16.13%
of portfolio
Number of shares
1,891,641 sh
Holdings current value
$797.33M
Avg closing price
$410.44
+1.3%
Last action
Trimmed 20.5%
2025Q4
Current $415.75
4
G
GOOGLALPHABET INC
Communication Services·Internet Content & Information
13.33%
of portfolio
Number of shares
3,480,801 sh
Holdings current value
$658.92M
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
9.11%
of portfolio
Number of shares
950,905 sh
Holdings current value
$450.13M
Avg closing price
$400.54
+12.9%
Last action
Trimmed 12.4%
2025Q4
Current $452.35
6
M
MAMASTERCARD INCORPORATED
Financial Services·Credit Services
6.24%
of portfolio
Number of shares
586,254 sh
Holdings current value
$308.70M
Avg closing price
$488.53
+2.8%
Last action
Trimmed 6.7%
2025Q4
Current $502.38
7
V
VVISA INC
Financial Services·Credit Services
5.59%
of portfolio
Number of shares
874,912 sh
Holdings current value
$276.51M
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
0.46%
of portfolio
Number of shares
91,328 sh
Holdings current value
$22.57M
Avg closing price
$250.12
+33.7%
Last action
Trimmed 2.1%
2025Q3
Current $334.28
9
C
CHTRCHARTER COMMUNICATIONS INC N
Communication Services·Telecom Services
0.04%
of portfolio
Number of shares
6,025 sh
Holdings current value
$2.07M
Avg closing price
$290.63
-16.8%
Last action
Exited
2025Q1
Current $241.78
10
F
FICOFAIR ISAAC CORP
Technology·Software - Application
0.03%
of portfolio
Number of shares
670 sh
Holdings current value
$1.33M
Avg closing price
$1489
-34.2%
Last action
Exited
2025Q4
Current $979.76

Portfolio heatmap

Box size = % of portfolio · color = return since filing
TDG
25.65% · -8.0%
AMZN
23.42% · +16.3%
MSFT
16.13% · -1.4%
GOOGL
13.33% · +79.0%
MCO
9.11% · -4.4%
MA
6.24% · -4.6%
V
5.59% · -2.3%
HLT
0.46% · +35.2%
CHTR
0.04% · -29.5%
FICO
0.03% · -50.8%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.
  • Industrials1 pos$1.27B25.7%
  • Consumer Cyclical2 pos$1.18B23.9%
  • Financial Services3 pos$1.04B20.9%
  • Technology2 pos$798.7M16.2%
  • Communication Services2 pos$661.0M13.4%