STEGINSKY CAPITAL LLC VC / PE / Holdco

Location: Port Washington, NY

CIK: 0001120048 · Show all filings

Period: Q3 2026 (← Previous)

Filing Date: Oct 7, 2026

Total Value: $610M (100.0% shares, 0.0% debt)

Holdings (8)

Decreased Positions (5)

GOOG ALPHABET INC CAP STKCL C 36.3%

Value $222M (-9.0%) Shares 650,350 (-5.7%) Share Price $340.74 Est. Cost/Share $117.46 Unrealized @ Report Date +190.1%

MLM MARTIN MARIETTA MATLS INC 10.6%

Value $64.78M (-18.9%) Shares 135,021 (-2.5%) Share Price $479.81 Est. Cost/Share $292.08 Unrealized @ Report Date +64.3%

MKL MARKEL CORP 12.4%

Value $75.92M (-14.4%) Shares 44,331 (-2.4%) Share Price $1712.46 Est. Cost/Share $1240.89 Unrealized @ Report Date +38.0%

COST COSTCO WHOLESALE CORP 19.9%

Value $121M (-4.0%) Shares 133,430 (-1.4%) Share Price $910.34 Est. Cost/Share $256.04 Unrealized @ Report Date +255.6%

FAST FASTENAL CO 13.4%

Value $81.72M (-1.0%) Shares 1,649,829 (-4.0%) Share Price $49.53 Est. Cost/Share $30.67 Unrealized @ Report Date +61.5%

Ticker	Issuer	Shares	Value	%	Share Price	Est. Cost/Share	Unrealized @ Report Date	Class	CUSIP
GOOG	ALPHABET INC CAP STKCL C	650,350 (-5.7%)	$222M (-9.0%)	36.3%	$340.74	$117.46	+190.1%	COM	02079K107
MLM	MARTIN MARIETTA MATLS INC	135,021 (-2.5%)	$64.78M (-18.9%)	10.6%	$479.81	$292.08	+64.3%	COM	573284106
MKL	MARKEL CORP	44,331 (-2.4%)	$75.92M (-14.4%)	12.4%	$1712.46	$1240.89	+38.0%	COM	570535104
COST	COSTCO WHOLESALE CORP	133,430 (-1.4%)	$121M (-4.0%)	19.9%	$910.34	$256.04	+255.6%	COM	22160K105
FAST	FASTENAL CO	1,649,829 (-4.0%)	$81.72M (-1.0%)	13.4%	$49.53	$30.67	+61.5%	COM	311900104

Unchanged Positions (3)

BRK/B BERKSHIRE HATHAWAY INC DEL CL B NEW 6.0%

Value $36.73M Shares 73,758 Share Price $497.95 Est. Cost/Share $229.22 Unrealized @ Report Date +117.2%

GOOGL ALPHABET INC CL A 0.8%

Value $4.586M Shares 13,327 Share Price $344.11 Est. Cost/Share $116.98 Unrealized @ Report Date +194.1%

BRK/A BERKSHIRE HATHAWAY INC CL A 0.5%

Value $2.988M Shares 4 Share Price $747000.00 Est. Cost/Share $731338.10 Unrealized @ Report Date +2.1%

Ticker	Issuer	Shares	Value	%	Share Price	Est. Cost/Share	Unrealized @ Report Date	Class	CUSIP
BRK/B	BERKSHIRE HATHAWAY INC DEL CL B NEW	73,758	$36.73M	6.0%	$497.95	$229.22	+117.2%	COM	084670702
GOOGL	ALPHABET INC CL A	13,327	$4.586M	0.8%	$344.11	$116.98	+194.1%	COM	02079K305
BRK/A	BERKSHIRE HATHAWAY INC CL A	4	$2.988M	0.5%	$747000.00	$731338.10	+2.1%	COM	084670108