13F data — long US equity only · ~45-day lag from quarter-end · positions may have changed since · not investment advice
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Altarock Partners

Tier 2 · solid recordQuality compounder

~12–14% net CAGR since 2002 (private LP, unaudited).

Positions
8
as of Q1 2026
Top-5 concentration
96%
of equity portfolio
Latest filing
Q1 2026
13F report date

Reported holdings long US equity, by weight

TickerWeightValueChange
AMZN
AMAZON.COM INC
38.2%
$1.58BADD
TDG
TRANSDIGM GROUP INC
25.5%
$1.05BTRIM
MSFT
MICROSOFT CORP
16.8%
$691MTRIM
MCO
MOODYS CORP
9.1%
$376MADD
MA
MASTERCARD INC-CLASS A
6.3%
$261MTRIM
V
VISA INC-CLASS A SHRS
3.7%
$151MTRIM
GOOGL
ALPHABET INC-CL A
0.3%
$12MTRIM
HLT
HILTON WORLDWIDE
0.1%
$5MTRIM

Weights are share of the manager’s reported long US-equity portfolio (13F). Options, bonds, and non-US/private holdings aren’t reported here. “Change” vs the prior reported quarter.

Altarock Partners — holdings & moves · Smart Money · Quantsleeve