Filed: 4/17/2026ACC: 0001953324-26-000002
📋 What this filing means
AQUAMARINE ZURICH AG filed this quarterly 13F‑HR report disclosing 7 equity positions with a total reported market value of $135.3K. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
7
Positions
$135.3K
Total AUM (reported)
271.13K
Total Shares
Allocation by class
COM$47.0K34.7%
CL B NEW$46.8K34.6%
CL A$41.5K30.7%
Portfolio Concentration
Top 3$88.3K65.3%
4–10$47.0K34.7%
Top 3 weight
65.3%
Top 10 weight
100.0%
Voting Authority Distribution
Total shares with voting rights: 271.13K
Sole
Full voting authority
271.13K
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole7
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings7
Rows:
BERKSHIRE HATHAWAY INC DEL
SOLEShares97.60K
TypeSH
Market value$46.8K
34.57%
Sole
97.60K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares30.00
TypeSH
Market value$21.5K
15.92%
Sole
30.00
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares40K
TypeSH
Market value$20.0K
14.77%
Sole
40K
Shared
0.00
None
0.00
AMERICAN EXPRESS CO
SOLEShares65K
TypeSH
Market value$19.7K
14.53%
Sole
65K
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares27K
TypeSH
Market value$11.8K
8.71%
Sole
27K
Shared
0.00
None
0.00
FERRARI N V
SOLEShares30K
TypeSH
Market value$10.0K
7.40%
Sole
30K
Shared
0.00
None
0.00
DAILY JOURNAL CORP
SOLEShares11.50K
TypeSH
Market value$5.5K
4.10%
Sole
11.50K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 97.60K | SH | $46.8K 34.57% | 97.60K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 30.00 | SH | $21.5K 15.92% | 30.00 | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 40K | SH | $20.0K 14.77% | 40K | 0.00 | 0.00 |
AMERICAN EXPRESS COSOLE | COM | 65K | SH | $19.7K 14.53% | 65K | 0.00 | 0.00 |
MOODYS CORPSOLE | COM | 27K | SH | $11.8K 8.71% | 27K | 0.00 | 0.00 |
FERRARI N VSOLE | COM | 30K | SH | $10.0K 7.40% | 30K | 0.00 | 0.00 |
DAILY JOURNAL CORPSOLE | COM | 11.50K | SH | $5.5K 4.10% | 11.50K | 0.00 | 0.00 |