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Aquamarine

Superinvestor

Aquamarine Zurich AG

SEC CIK
0001953324
Manager
Guy Spier
Style
Value
Latest filing
Jul 10, 2026

Predecessor filersAquamarine Capital Management, LLC

Holdings in Q4 2023

Holdings as of Dec 31, 2023, filed Feb 1, 2024. Long positions only; changes compare share counts with Q3 2023.

Institution overview
Positions
12
0 vs. Q3 2023
Portfolio value
$228.7M
+$25.9M (+12.8%) vs. Q3 2023
Filed
Feb 1, 2024
SEC
Holdings of Aquamarine in Q4 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
BRK.BBerkshire Hathaway IncStock140,600$50.1M21.9%00.0%UnchangedHistory
AXPAmerican Express CoStock210,000$39.3M17.2%00.0%UnchangedHistory
MAMastercard IncStock65,750$28.0M12.3%00.0%UnchangedHistory
RACEFerrari N.V.COM80,000$27.0M11.8%00.0%UnchangedHistory
BACBank of America CorpStock767,845$25.9M11.3%00.0%UnchangedHistory
MUMicron Technology IncStock200,000$17.1M7.5%00.0%UnchangedHistory
BRK.ABerkshire Hathaway IncCL A30$16.3M7.1%00.0%UnchangedHistory
MCOMoodys CorpStock27,000$10.5M4.6%00.0%UnchangedHistory
SRGSeritage Growth PropertiesCL A500,000$4.67M2.0%00.0%UnchangedHistory
DJCODaily Journal CorpCOM11,500$3.92M1.7%00.0%UnchangedHistory
BABAAlibaba Group Holding LtdADR47,500$3.68M1.6%00.0%UnchangedHistory
GOOGLAlphabet Inc.Stock16,000$2.23M1.0%00.0%UnchangedHistory