Aquamarine Zurich AG

ZURICH, V8 · CIK 0001953324

Portfolio Value: $293.67M

Positions: 14

Period: 2025-03-31

Filed: 2025-04-11

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024

New positions

Added to

Trimmed

Exited

Aquamarine Zurich AG Q1 2025 13F Filing Summary

Aquamarine Zurich AG (ZURICH, V8) reported a portfolio value of $293.67M across 14 positions in their Q1 2025 SEC 13F filing (period ending 2025-03-31). The top 10 positions account for 98.0% of the portfolio.

Top holdings: BRK/B$74.88M·AXP$56.50M·MA$36.04M·BAC$32.04M·BRK/A$23.95M

+1 new1 exits

Holdings Heatmap

BRK/B25.5% · $74.88M AXP19.2% · $56.50M MA12.3%BAC10.9%BRK/A8.2%RACE8.0%

MU5.9% · $17.38M MCO4.3% · $12.57M BABA2.1%DJCO1.6%GOOGL0.8%SRG0.5%

AMR0.3% · $1.00M CNR0.3% · $828.00KNew

Top 14 holdings by portfolio weight. Block width = holding percentage. Green = new/increased, red = reduced, gray = unchanged.

Largest Trades This Quarter

New Positions1

CNR

CORE NATURAL RESOURCES INC

Exits1

All Holdings

#	Stock	Value↓	Shares	Weight	Change
1	BRK/BBERKSHIRE HATHAWAY INC DEL	$74.88M	140,600	25.50%	-
2	AXPAMERICAN EXPRESS CO	$56.50M	210,000	19.24%	-
3	MAMASTERCARD INCORPORATED	$36.04M	65,750	12.27%	-
4	BACBANK AMERICA CORP	$32.04M	767,845	10.91%	-
5	BRK/ABERKSHIRE HATHAWAY INC DEL	$23.95M	30	8.16%	-
6	RACEFERRARI N V	$23.53M	60,000	8.01%	-
7	MUMICRON TECHNOLOGY INC	$17.38M	200,000	5.92%	-
8	MCOMOODYS CORP	$12.57M	27,000	4.28%	-
9	BABAALIBABA GROUP HLDG LTD	$6.28M	47,500	2.14%	-
10	DJCODAILY JOURNAL CORP	$4.57M	11,500	1.56%	-

Position Changes

Stock	Value	Shares
CNRCORE NATURAL RESOURCES INC	$828.00K	8,100

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