AltaRock Partners

Q1 2021 13F · by Mark Massey, founder

As of: Mar 31, 2021
Filed: May 14, 2021
US stock: $2.6B · prev $2.4B
Positions: 7 · prev 7
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%

Moves3 since the prior filing

+4.2 pp in · −5.3 pp out

New 0 0.00 pp
Added 2 +4.18 pp
Trimmed 1 −5.31 pp
Exited 0 0.00 pp

The book

Very concentrated · behaves like 4 equal-sized positions

Very concentrated
Concentrated
Focused
Diversified

Low turnover · 6.5% a year, about 15.3 years per position

Low
Moderate
High

Top 5 positions98% of US stock

GOOGL Alphabet Inc. Class A held held25.1%
META Meta Platforms, Inc. Class A added+4.78 pp added+4.7824.4%
CHTR Charter Comm Inc Del CL A New added−0.60 pp added−0.6024.2%
TDG TransDigm Group Incorporated trimmed−5.31 pp trimmed−5.3121.3%
MCO Moody's Corporation held held2.6%

Positions7 in this filing · 0 exited


GOOGLAlphabet Inc. Class A	25.08%	319,916	$660M	held	—	6 q
METAMeta Platforms, Inc. Class A	24.38%	2,177,682	$641M	added+27%	+4.78 pp	2 q
CHTRCharter Comm Inc Del CL A New	24.21%	1,032,139	$637M	added+15%	−0.60 pp	20 q
TDGTransDigm Group Incorporated	21.29%	952,563	$560M	trimmed−7%	−5.31 pp	26 q
MCOMoody's Corporation	2.60%	228,668	$68M	held	—	26 q
MAMastercard Incorporated	2.39%	176,249	$63M	held	—	26 q
VVISA Inc.	0.07%	8,514	$2M	held	—	26 q

Source

Form: 13F-HR
Reading: 0 defects · 0 unresolved
Accession: 0001104659-21-066668
Options: none in this filing
Notes: none in this filing
SEC cross-check: SEC data set not published yet