Filed: 5/15/2026ACC: 0001104659-26-062170
📋 What this filing means
ALTAROCK PARTNERS LP filed this quarterly 13F‑HR report disclosing 8 equity positions with a total reported market value of $4.13B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
8
Positions
$4.13B
Total AUM (reported)
12.29M
Total Shares
Allocation by class
COMM$4.13B100.0%
Portfolio Concentration
Top 3$3.32B80.5%
4–10$805.17M19.5%
Top 3 weight
80.5%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 12.29M
Sole
Full voting authority
12.29M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole8
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings8
Rows:
AMAZON.COM INC
SOLEShares7.57M
TypeSH
Market value$1.58B
38.20%
Sole
7.57M
Shared
0.00
None
0.00
TRANSDIGM GROUP INC
SOLEShares909.17K
TypeSH
Market value$1.05B
25.54%
Sole
909.17K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares1.87M
TypeSH
Market value$691.31M
16.75%
Sole
1.87M
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares862.04K
TypeSH
Market value$376.06M
9.11%
Sole
862.04K
Shared
0.00
None
0.00
MASTERCARD INC-CLASS A
SOLEShares522.84K
TypeSH
Market value$261.24M
6.33%
Sole
522.84K
Shared
0.00
None
0.00
VISA INC-CLASS A SHRS
SOLEShares498.68K
TypeSH
Market value$150.72M
3.65%
Sole
498.68K
Shared
0.00
None
0.00
ALPHABET INC-CL A
SOLEShares43.39K
TypeSH
Market value$12.48M
0.30%
Sole
43.39K
Shared
0.00
None
0.00
HILTON WORLDWIDE
SOLEShares15.34K
TypeSH
Market value$4.66M
0.11%
Sole
15.34K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
AMAZON.COM INCSOLE | COMM | 7.57M | SH | $1.58B 38.20% | 7.57M | 0.00 | 0.00 |
TRANSDIGM GROUP INCSOLE | COMM | 909.17K | SH | $1.05B 25.54% | 909.17K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COMM | 1.87M | SH | $691.31M 16.75% | 1.87M | 0.00 | 0.00 |
MOODYS CORPSOLE | COMM | 862.04K | SH | $376.06M 9.11% | 862.04K | 0.00 | 0.00 |
MASTERCARD INC-CLASS ASOLE | COMM | 522.84K | SH | $261.24M 6.33% | 522.84K | 0.00 | 0.00 |
VISA INC-CLASS A SHRSSOLE | COMM | 498.68K | SH | $150.72M 3.65% | 498.68K | 0.00 | 0.00 |
ALPHABET INC-CL ASOLE | COMM | 43.39K | SH | $12.48M 0.30% | 43.39K | 0.00 | 0.00 |
HILTON WORLDWIDESOLE | COMM | 15.34K | SH | $4.66M 0.11% | 15.34K | 0.00 | 0.00 |