AltaRock Partners

Q1 2023 13F · by Mark Massey, founder

As of: Mar 31, 2023
Filed: May 15, 2023
US stock: $3.7B · prev $3.2B
Positions: 8 · prev 8
Options notional: $0
Documents: 1· no amendments

Picture100.0% US stock

Full picture · of what this 13F reports is US stock

US stock listed on a US exchange 100.0%
Foreign stock not listed in the US 0.0%
Notes debt, at principal 0.0%
Puts at notional value 0.0%
Calls at notional value 0.0%

Moves7 since the prior filing

+2.0 pp in · −1.9 pp out

New 0 0.00 pp
Added 2 +2.04 pp
Trimmed 5 −1.95 pp
Exited 0 0.00 pp

The book

Very concentrated · behaves like 5 equal-sized positions

Very concentrated
Concentrated
Focused
Diversified

Low turnover · 5.0% a year, about 19.8 years per position

Low
Moderate
High

Top 5 positions91% of US stock

TDG TransDigm Group Incorporated trimmed+0.02 pp trimmed+0.0227.9%
MSFT Microsoft Corp trimmed−0.88 pp trimmed−0.8818.4%
GOOGL Alphabet Inc. Class A trimmed+0.02 pp trimmed+0.0217.9%
AMZN Amazon.Com Inc added+1.69 pp added+1.6916.6%
V VISA Inc. trimmed−0.75 pp trimmed−0.7510.2%

Positions8 in this filing · 0 exited


TDGTransDigm Group Incorporated	27.92%	1,383,124	$1.0B	trimmed−2%	+0.02 pp	34 q
MSFTMicrosoft Corp	18.42%	2,331,929	$672M	trimmed−9%	−0.88 pp	8 q
GOOGLAlphabet Inc. Class A	17.85%	6,282,417	$652M	trimmed−2%	+0.02 pp	14 q
AMZNAmazon.Com Inc	16.59%	5,864,951	$606M	added+4%	+1.69 pp	5 q
VVISA Inc.	10.18%	1,648,124	$372M	trimmed−2%	−0.75 pp	34 q
CHTRCharter Comm Inc Del CL A New	3.91%	399,465	$143M	added+19%	+0.35 pp	28 q
MAMastercard Incorporated	2.93%	294,510	$107M	trimmed−2%	−0.36 pp	34 q
MCOMoody's Corporation	2.19%	261,534	$80M	held	—	34 q

Source

Form: 13F-HR
Reading: 0 defects · 0 unresolved
Accession: 0001104659-23-061059
Options: none in this filing
Notes: none in this filing
SEC cross-check: SEC data set not published yet