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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 Q1 2023

Holdings as of Mar 31, 2023, filed Apr 18, 2023. Long positions only; changes compare share counts with Q4 2022.

Institution overview
Positions
12
0 vs. Q4 2022
Portfolio value
$193.4M
+$7.49M (+4.0%) vs. Q4 2022
Filed
Apr 18, 2023
SEC
Holdings of Aquamarine in Q1 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
BRK.BBerkshire Hathaway IncStock140,600$43.4M22.5%00.0%UnchangedHistory
AXPAmerican Express CoStock210,000$34.5M17.8%00.0%UnchangedHistory
MAMastercard IncStock65,750$23.9M12.4%00.0%UnchangedHistory
BACBank of America CorpStock767,845$22.0M11.4%00.0%UnchangedHistory
RACEFerrari N.V.COM80,000$21.6M11.2%00.0%UnchangedHistory
BRK.ABerkshire Hathaway IncCL A30$14.0M7.2%00.0%UnchangedHistory
MUMicron Technology IncStock200,000$12.1M6.2%00.0%UnchangedHistory
MCOMoodys CorpStock27,000$8.26M4.3%00.0%UnchangedHistory
BABAAlibaba Group Holding LtdADR47,500$4.85M2.5%00.0%UnchangedHistory
SRGSeritage Growth PropertiesCL A500,000$3.94M2.0%00.0%UnchangedHistory
DJCODaily Journal CorpCOM11,500$3.28M1.7%00.0%UnchangedHistory
GOOGLAlphabet Inc.Stock16,000$1.66M0.9%00.0%UnchangedHistory