ALTAROCK PARTNERS LP
CIK
1631014
Location
WEST PALM BEACH, FL
Portfolio Value
Mid
$4,126,337,611
Diversification
Highly concentrated
Filing Date
Global Rank
#762
/ 8,603
▼ 87
· as of Mar 2026
Top Industry
Internet Retail
38.2%
3Y Alpha vs SPY
-2.9%
Period ended 3 months ago
Filed May 15, 2026 · 55d
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+61.7%
SPY
+76.5%
Annualised alpha
-3.5%
Max drawdown
−19.3%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
8 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
38.2%
+5.1 pts
Top 5
95.9%
+3.6 pts
Top 10
100.0%
0.0 pts
HHI
2,528
Highly concentrated+277
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Consumer Cyclical | 38.3% | $1,580,841,004 |
| Industrials | 25.5% | $1,053,689,345 |
| Financial Services | 19.1% | $788,023,576 |
| Technology | 16.8% | $691,306,171 |
| Communication Services | 0.3% | $12,477,515 |
Last Quarter's Activity
Export CSVTrimmed
Positions the filer reduced
6 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| HLT | Hilton Worldwide Holdings Inc. | −527,272 | 15,341 | $4,664,891 | |
| MSFT | Microsoft Corp | −214,820 | 1,867,537 | $691,306,171 | |
| GOOGL | Alphabet Inc. | −126,000 | 43,391 | $12,477,515 | |
| TDG | TransDigm Group INC | −60,232 | 909,168 | $1,053,689,345 | |
| MA | Mastercard Inc | −19,000 | 522,836 | $261,240,235 | |
| V | Visa Inc. | −18,000 | 498,677 | $150,720,136 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterNo qualifying positions this quarter.
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
8 positions ·
$4,126,337,611 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Added | 7,567,946 | $1,576,176,113 | 38.20% | |
| TDG |
TransDigm Group INC
Industrials
|
Reduced | 909,168 | $1,053,689,345 | 25.54% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 1,867,537 | $691,306,171 | 16.75% | |
| MCO |
Moodys Corp /De/
Financial Services
|
Added | 862,036 | $376,063,205 | 9.11% | |
| MA |
Mastercard Inc
Financial Services
|
Reduced | 522,836 | $261,240,235 | 6.33% | |
| V |
Visa Inc.
Financial Services
|
Reduced | 498,677 | $150,720,136 | 3.65% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 43,391 | $12,477,515 | 0.30% | |
| HLT |
Hilton Worldwide Holdings Inc.
Consumer Cyclical
|
Reduced | 15,341 | $4,664,891 | 0.11% |