Guy Spier's Portfolio

Aquamarine Capital 13F holdings

What is Guy Spier's portfolio?

Aquamarine Capital has disclosed a total of 14 security holdings in their (2025 Q1) SEC 13F filing(s) with portfolio value of $293,674,000.

What stocks does Guy Spier own?

In Guy Spier's portfolio as of 31 Mar 2025, the top 5 holdings are (BRK.B) BERKSHIRE HATHAWAY INC CL-B (25.50%), (AXP) AMERICAN EXPRESS CO (19.24%), (MA) MASTERCARD INC - A (12.27%), (BAC) BANK OF AMERICA CORP (10.91%) and (BRK.A) BERKSHIRE HATHAWAY INC CL-A (8.16%).

To see the historical data of Aquamarine Capital's portfolio holdings please click on the "2025 Q1" dropdown menu and select the date.

To see Aquamarine Capital's original 13F reports (2025 Q1), please click on the "important" button.

Portfolio value: $293M+
Period: 2025 Q1
Number of stock: 14
Update: 11 Apr 2025
Important
History
Ticker
Stock
% of
Portfolio
Shares*
Reported
Price*
% difference
Current Price
Value
% (shares)
Activity
% change to
Portfolio
BABA
ALIBABA GROUP HOLDING-SP ADR
2.14%
47,500
$132.23
17.67% $108.87
$6,281,000
AMR
ALPHA METALLURGICAL RESOURCE
0.34%
8,000
$125.25
0.82% $124.22
$1,002,000
GOOGL
ALPHABET INC-CL A
0.84%
12,879
$154.63
2.24% $151.16
$1,991,569
AXP
AMERICAN EXPRESS CO
19.24%
210,000
$269.05
6.59% $251.31
$56,501,000
BAC
BANK OF AMERICA CORP
10.91%
767,845
$41.73
10.35% $37.41
$32,042,000
BRK.A
BERKSHIRE HATHAWAY INC CL-A
8.16%
23
$798,433.33
2.45% $778,833.00
$18,922,870
BRK.B
BERKSHIRE HATHAWAY INC CL-B
25.50%
140,600
$532.58
2.70% $518.21
$74,881,000
CNR
CORE NATURAL RESOURCES INC
0.28%
8,100
$102.22
26.09% $75.55
$828,000
buy
+0.28%
DJCO
DAILY JOURNAL CORP
1.56%
11,500
$397.74
5.11% $377.40
$4,574,000
RACE
FERRARI NV
8.01%
46,500
$392.20
12.18% $439.97
$18,237,300
MA
MASTERCARD INC - A
12.27%
65,750
$548.12
5.62% $517.33
$36,039,000
MU
MICRON TECHNOLOGY INC
5.92%
200,000
$86.89
20.82% $68.80
$17,378,000
MCO
MOODY'S CORP
4.28%
20,520
$465.70
8.77% $424.86
$9,556,240
SRG
SERITAGE GROWTH PROP- A REIT
0.55%
372,500
$3.23
10.53% $2.89
$1,203,175
14 of 14

Completely sold out

History
Ticker
Stock
Sold
Shares*
% change to
Portfolio
ARCH
ARCH RESOURCES INC
8,100
-0.39%

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.