ALTAROCK PARTNERS LP
Registered adviserRegulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: the Dow Jones Industrial Average as of 2026-07-31, active share 87.2%; sector active share 49.2% against the combined 13F book's sector weights.
Over time 26 measured quarters
How the bands are measured
Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.
Clone Performance
Build a hypothetical price-return history from this filer's public 13F holdings.
View clone backtestPortfolio Concentration
8 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Consumer Cyclical | 32.3% | $1,370,705,178 |
| Industrials | 27.5% | $1,166,540,690 |
| Technology | 20.5% | $870,808,475 |
| Financial Services | 19.3% | $816,699,749 |
| Communication Services | 0.4% | $15,007,395 |
Last Quarter's Activity
Export CSVTrimmed
Positions the filer reduced| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| AMZN | Amazon Com Inc | −1,837,974 | 5,729,972 | $1,365,681,526 | |
| MCO | Moodys Corp /De/ | −559,412 | 302,624 | $137,064,462 | |
| TDG | TransDigm Group INC | −33,413 | 875,755 | $1,166,540,690 | |
| GOOGL | Alphabet Inc. | −1,397 | 41,994 | $15,007,395 | |
| HLT | Hilton Worldwide Holdings Inc. | −139 | 15,202 | $5,023,652 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterSold Out
Positions the filer fully exited| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 5,729,972 | $1,365,681,526 | 32.21% | |
| TDG |
TransDigm Group INC
Industrials
|
Reduced | 875,755 | $1,166,540,690 | 27.51% | |
| MSFT |
Microsoft Corp
Technology
|
Added | 2,334,482 | $870,808,475 | 20.54% | |
| MA |
Mastercard Inc
Financial Services
|
Added | 764,507 | $392,650,795 | 9.26% | |
| V |
Visa Inc.
Financial Services
|
Added | 836,470 | $286,984,492 | 6.77% | |
| MCO |
Moodys Corp /De/
Financial Services
|
Reduced | 302,624 | $137,064,462 | 3.23% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 41,994 | $15,007,395 | 0.35% | |
| HLT |
Hilton Worldwide Holdings Inc.
Consumer Cyclical
|
Reduced | 15,202 | $5,023,652 | 0.12% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.