Aquamarine Zurich AG Long-Term Concentrated

Location: Zurich, Switzerland

CIK: 0001953324 · Show all filings

Period: Q2 2025 (← Previous) (Next →)

Filing Date: Jul 18, 2025

Total Value: $310M

Holdings (14)

BRK/B BERKSHIRE HATHAWAY INC DEL 22.0%

Value $68.3M Shares 140,600 Est. Cost $284.56 Unrealized +78.5%

AXP AMERICAN EXPRESS CO 21.6%

Value $66.99M Shares 210,000 Est. Cost $144.95 Unrealized +92.7%

MA MASTERCARD INCORPORATED 11.9%

Value $36.95M Shares 65,750 Est. Cost $325.17 Unrealized +69.6%

BAC BANK AMERICA CORP 11.7%

Value $36.33M Shares 767,845 Est. Cost $30.59 Unrealized +35.5%

RACE FERRARI N V 8.1%

Value $24.97M Shares 60,000 Est. Cost $199.38 Unrealized +133.0%

MU MICRON TECHNOLOGY INC 8.0%

Value $24.65M Shares 200,000 Est. Cost $56.91 Unrealized +63.8%

BRK/A BERKSHIRE HATHAWAY INC DEL 7.1%

Value $21.86M Shares 30 Est. Cost $428128.38 Unrealized +77.9%

MCO MOODYS CORP 4.4%

Value $13.54M Shares 27,000 Est. Cost $282.31 Unrealized +63.3%

BABA ALIBABA GROUP HLDG LTD 1.7%

Value $5.387M Shares 47,500 Est. Cost $80.00 Unrealized —

DJCO DAILY JOURNAL CORP 1.6%

Value $4.856M Shares 11,500 Est. Cost $264.01 Unrealized +51.4%

GOOGL ALPHABET INC 0.9%

Value $2.82M Shares 16,000 Est. Cost $95.11 Unrealized +71.7%

SRG SERITAGE GROWTH PPTYS 0.5%

Value $1.54M Shares 500,000 Est. Cost $11.44 Unrealized -74.8%

AMR ALPHA METALLURGICAL RESOUR I 0.3%

Value $900K Shares 8,000 Est. Cost $309.65 Unrealized -62.3%

CNR CORE NATURAL RESOURCES INC 0.2%

Value $749K Shares 10,740 Est. Cost $84.05 Unrealized -15.7%

Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
BRK/B	BERKSHIRE HATHAWAY INC DEL	140,600	$68.3M	22.0%	$284.56	+78.5%	—	084670702
AXP	AMERICAN EXPRESS CO	210,000	$66.99M	21.6%	$144.95	+92.7%	—	025816109
MA	MASTERCARD INCORPORATED	65,750	$36.95M	11.9%	$325.17	+69.6%	—	57636Q104
BAC	BANK AMERICA CORP	767,845	$36.33M	11.7%	$30.59	+35.5%	—	060505104
RACE	FERRARI N V	60,000	$24.97M	8.1%	$199.38	+133.0%	—	N3167Y103
MU	MICRON TECHNOLOGY INC	200,000	$24.65M	8.0%	$56.91	+63.8%	—	595112103
BRK/A	BERKSHIRE HATHAWAY INC DEL	30	$21.86M	7.1%	$428128.38	+77.9%	—	084670108
MCO	MOODYS CORP	27,000	$13.54M	4.4%	$282.31	+63.3%	—	615369105
BABA	ALIBABA GROUP HLDG LTD	47,500	$5.387M	1.7%	$80.00	—	—	01609W102
DJCO	DAILY JOURNAL CORP	11,500	$4.856M	1.6%	$264.01	+51.4%	—	233912104
GOOGL	ALPHABET INC	16,000	$2.82M	0.9%	$95.11	+71.7%	—	02079K305
SRG	SERITAGE GROWTH PPTYS	500,000	$1.54M	0.5%	$11.44	-74.8%	—	81752R100
AMR	ALPHA METALLURGICAL RESOUR I	8,000	$900K	0.3%	$309.65	-62.3%	—	020764106
CNR	CORE NATURAL RESOURCES INC	10,740	$749K	0.2%	$84.05	-15.7%	—	218937100