ALTAROCK PARTNERS LP

CIK 0001631014 · WEST PALM BEACH, FL · Quarter end: 2026-06-30 · Filed on: 2026-08-17 · Open the SEC source ↗

ALTAROCK PARTNERS LP reported 8 positions worth $4.24B as of June 30, 2026 (13F filed August 17, 2026). Largest holding: AMZN (32.2%).

Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.

$4.24B

2026 Q2

Positions

Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.

100.0%

Est. Net Flow (Q)

—

2026 Q2

Positions Changes Mix History BacktestPRO

8 positions shown

#	Symbol	Company	Type	Value ↓	% Port.	Shares	1Y	YTD
▸ 1	AMZN	AMAZON.COM INC	SH	$1.37B	32.21%	5,729,972	—	—
▸ 2	TDG	TRANSDIGM GROUP INC	SH	$1.17B	27.51%	875,755	—	—
▸ 3	MSFT	MICROSOFT CORP	SH	$870.8M	20.54%	2,334,482	—	—
▸ 4	MA	MASTERCARD INC-CLASS A	SH	$392.7M	9.26%	764,507	—	—
▸ 5	V	VISA INC-CLASS A SHRS	SH	$287.0M	6.77%	836,470	—	—
▸ 6	MCO	MOODYS CORP	SH	$137.1M	3.23%	302,624	—	—
▸ 7	GOOGL	ALPHABET INC-CL A	SH	$15.0M	0.35%	41,994	—	—
▸ 8	HLT	HILTON WORLDWIDE	SH	$5.0M	0.12%	15,202	—	—

Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does ALTAROCK PARTNERS LP hold as of Q2 2026?

ALTAROCK PARTNERS LP reported 8 positions worth $4.24B in its Q2 2026 13F filing. Largest positions: AMZN (32.2%), TDG (27.5%), MSFT (20.5%), MA (9.3%) and V (6.8%).

What did ALTAROCK PARTNERS LP buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did ALTAROCK PARTNERS LP sell in Q2 2026?

No previous quarter is available yet.

13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.