Filed: 7/10/2026ACC: 0001953324-26-000003
📋 What this filing means
AQUAMARINE ZURICH AG filed this quarterly 13F‑HR report disclosing 7 equity positions with a total reported market value of $144.1K. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
7
Positions
$144.1K
Total AUM (reported)
271.13K
Total Shares
Allocation by class
COM$52.2K36.3%
CL B NEW$48.8K33.9%
CL A$43.0K29.8%
Portfolio Concentration
Top 3$93.3K64.7%
4–10$50.8K35.3%
Top 3 weight
64.7%
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$48.8K
33.89%
Sole
97.60K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares30.00
TypeSH
Market value$22.5K
15.59%
Sole
30.00
Shared
0.00
None
0.00
AMERICAN EXPRESS CO
SOLEShares65K
TypeSH
Market value$22.0K
15.26%
Sole
65K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares40K
TypeSH
Market value$20.5K
14.26%
Sole
40K
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares27K
TypeSH
Market value$12.2K
8.49%
Sole
27K
Shared
0.00
None
0.00
FERRARI N V
SOLEShares30K
TypeSH
Market value$11.1K
7.71%
Sole
30K
Shared
0.00
None
0.00
DAILY JOURNAL CORP
SOLEShares11.50K
TypeSH
Market value$6.9K
4.80%
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 | $48.8K 33.89% | 97.60K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 30.00 | SH | $22.5K 15.59% | 30.00 | 0.00 | 0.00 |
AMERICAN EXPRESS COSOLE | COM | 65K | SH | $22.0K 15.26% | 65K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 40K | SH | $20.5K 14.26% | 40K | 0.00 | 0.00 |
MOODYS CORPSOLE | COM | 27K | SH | $12.2K 8.49% | 27K | 0.00 | 0.00 |
FERRARI N VSOLE | COM | 30K | SH | $11.1K 7.71% | 30K | 0.00 | 0.00 |
DAILY JOURNAL CORPSOLE | COM | 11.50K | SH | $6.9K 4.80% | 11.50K | 0.00 | 0.00 |