STEGINSKY CAPITAL LLC VC / PE / Holdco

Location: Port Washington, NY

CIK: 0001120048 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Nov 13, 2025

Total Value: $545M

Holdings (8)

GOOG ALPHABET INC CAP STKCL C 30.4%

Value $166M Shares 680,588 Est. Cost $114.02 Unrealized +84.1%

COST COSTCO WHOLESALE CORP 21.3%

Value $116M Shares 125,253 Est. Cost $201.47 Unrealized +374.9%

MKL MARKEL CORP 14.1%

Value $76.63M Shares 40,090 Est. Cost $1146.67 Unrealized +71.0%

MLM MARTIN MARIETTA MATLS INC 13.8%

Value $75.42M Shares 119,653 Est. Cost $241.22 Unrealized +146.5%

FAST FASTENAL CO 13.0%

Value $70.63M Shares 1,440,322 Est. Cost $28.20 Unrealized +66.4%

BRK/B BERKSHIRE HATHAWAY INC DEL CL B NEW 6.4%

Value $34.82M Shares 69,266 Est. Cost $208.94 Unrealized +131.8%

GOOGL ALPHABET INC CL A 0.6%

Value $3.178M Shares 13,071 Est. Cost $112.60 Unrealized +85.8%

BRK/A BERKSHIRE HATHAWAY INC CL A 0.4%

Value $2.263M Shares 3 Est. Cost $761794.56 Unrealized -4.6%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
GOOG	ALPHABET INC CAP STKCL C	680,588	$166M	30.4%	$114.02	+84.1%	—	02079K107
COST	COSTCO WHOLESALE CORP	125,253	$116M	21.3%	$201.47	+374.9%	—	22160K105
MKL	MARKEL CORP	40,090	$76.63M	14.1%	$1146.67	+71.0%	—	570535104
MLM	MARTIN MARIETTA MATLS INC	119,653	$75.42M	13.8%	$241.22	+146.5%	—	573284106
FAST	FASTENAL CO	1,440,322	$70.63M	13.0%	$28.20	+66.4%	—	311900104
BRK/B	BERKSHIRE HATHAWAY INC DEL CL B NEW	69,266	$34.82M	6.4%	$208.94	+131.8%	—	084670702
GOOGL	ALPHABET INC CL A	13,071	$3.178M	0.6%	$112.60	+85.8%	—	02079K305
BRK/A	BERKSHIRE HATHAWAY INC CL A	3	$2.263M	0.4%	$761794.56	-4.6%	—	084670108