Filed: 1/15/2026ACC: 0001953324-26-000001
📋 What this filing means
AQUAMARINE ZURICH AG filed this quarterly 13F‑HR report disclosing 7 equity positions with a total reported market value of $147.5K. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
7
Positions
$147.5K
Total AUM (reported)
271.13K
Total Shares
Allocation by class
COM$53.0K35.9%
CL B NEW$49.1K33.3%
CL A$45.5K30.8%
Portfolio Concentration
Top 3$95.9K65.0%
4–10$51.6K35.0%
Top 3 weight
65.0%
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$49.1K
33.25%
Sole
97.60K
Shared
0.00
None
0.00
AMERICAN EXPRESS CO
SOLEShares65K
TypeSH
Market value$24.0K
16.30%
Sole
65K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares40K
TypeSH
Market value$22.8K
15.48%
Sole
40K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares30.00
TypeSH
Market value$22.6K
15.35%
Sole
30.00
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares27K
TypeSH
Market value$13.8K
9.35%
Sole
27K
Shared
0.00
None
0.00
FERRARI N V
SOLEShares30K
TypeSH
Market value$9.6K
6.48%
Sole
30K
Shared
0.00
None
0.00
DAILY JOURNAL CORP
SOLEShares11.50K
TypeSH
Market value$5.6K
3.80%
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 | $49.1K 33.25% | 97.60K | 0.00 | 0.00 |
AMERICAN EXPRESS COSOLE | COM | 65K | SH | $24.0K 16.30% | 65K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 40K | SH | $22.8K 15.48% | 40K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL A | 30.00 | SH | $22.6K 15.35% | 30.00 | 0.00 | 0.00 |
MOODYS CORPSOLE | COM | 27K | SH | $13.8K 9.35% | 27K | 0.00 | 0.00 |
FERRARI N VSOLE | COM | 30K | SH | $9.6K 6.48% | 30K | 0.00 | 0.00 |
DAILY JOURNAL CORPSOLE | COM | 11.50K | SH | $5.6K 3.80% | 11.50K | 0.00 | 0.00 |