Guy Spier Holdings Activity

Aquamarine Capital Portfolio 13F

Aquamarine Capital has disclosed a total of 2 changes to the portfolio in the latest (2025 Q1) SEC report(s): bought 1 totally new and completely sold out 1 position(s).

What stocks is Guy Spier buying now?

In the recent quarter Guy Spier has bought (CNR) CORE NATURAL RESOURCES INC (new buy).

What does Guy Spier invest in?

Guy Spier's top 5 holdings (by % of portfolio) are (BRK.B) BERKSHIRE HATHAWAY INC CL-B (25.5%), (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%).

In the latest report(s) no changes have been made to any of these investments.

History
Ticker
Stock
%
Activity
Share
Change
% change to
Portfolio
Reported
Price*
% difference
Current Price
% of
Portfolio
2025 Q1 (2 results)
CNR
CORE NATURAL RESOURCES INC
buy
+8,100
+0.28%
$102.22
29.47% $72.10
0.28%
ARCH
ARCH RESOURCES INC
-100.00%
-8,100
-0.39%
$141.23
4.53% $134.83
0.00%
2024 Q2 (2 results)
AMR
ALPHA METALLURGICAL RESOURCE
buy
+8,000
+0.85%
$280.50
57.32% $119.71
0.85%
ARCH
ARCH RESOURCES INC
buy
+8,100
+0.47%
$152.22
11.43% $134.83
0.47%
2024 Q1 (1 result)
RACE
FERRARI NV
-25.00%
-20,000
-3.33%
$435.92
2.39% $446.35
9.99%
2022 Q2 (1 result)
TWTR
TWITTER INC
-100.00%
-30,000
-0.68%
$38.70
38.76% $53.70
0.00%
2021 Q2 (3 results)
DJCO
DAILY JOURNAL CORP
buy
+11,500
+1.83%
$338.52
9.41% $370.36
1.83%
BABA
ALIBABA GROUP HOLDING-SP ADR
buy
+47,500
+5.05%
$226.78
49.61% $114.28
5.05%
WFC
WELLS FARGO & CO
-100.00%
-151,741
-2.78%
$39.07
67.25% $65.35
0.00%
2020 Q4 (2 results)
MU
MICRON TECHNOLOGY INC
+66.67%
+80,000
+3.51%
$75.18
8.45% $68.83
8.77%
FCAU
FIAT CHRYSLER AUTOMOBILES N V
-100.00%
-760,000
-5.44%
$12.27
-
0.00%
2020 Q2 (6 results)
TWTR
TWITTER INC
buy
+30,000
+0.65%
$29.80
80.20% $53.70
0.65%
GOOGL
ALPHABET INC-CL A
buy
+16,000
+0.83%
$70.88
111.64% $150.00
0.83%
SRG
SERITAGE GROWTH PROP- A REIT
+25.00%
+100,000
+0.83%
$11.40
74.21% $2.94
4.15%
MCO
MOODY'S CORP
+8.00%
+2,000
+0.40%
$274.74
53.39% $421.42
5.40%
FCAU
FIAT CHRYSLER AUTOMOBILES N V
-57.78%
-1,040,000
-7.61%
$10.05
-
5.56%
RACE
FERRARI NV
-60.00%
-120,000
-14.91%
$170.59
161.65% $446.35
9.94%
2020 Q1 (3 results)
AXP
AMERICAN EXPRESS CO
-5.59%
-12,430
-0.73%
$85.61
191.70% $249.72
12.26%
FCAU
FIAT CHRYSLER AUTOMOBILES N V
-10.00%
-200,000
-0.99%
$7.25
-
8.90%
TOO
TEEKAY OFFSHORE PARTNERS LP
-100.00%
-1,000,000
-1.05%
$1.54
-
0.00%
2019 Q3 (2 results)
MU
MICRON TECHNOLOGY INC
buy
+120,000
+2.60%
$42.85
60.63% $68.83
2.60%
SRG
SERITAGE GROWTH PROP- A REIT
+33.33%
+100,000
+2.15%
$42.49
93.08% $2.94
8.59%
2019 Q1 (5 results)
BAC
BANK OF AMERICA CORP
+30.14%
+177,845
+2.71%
$27.59
36.97% $37.79
11.69%
SRG
SERITAGE GROWTH PROP- A REIT
+13.69%
+36,131
+0.89%
$44.44
93.38% $2.94
7.36%
TERP
TERRAFORM POWER INC - A
-100.00%
-231,183
-1.43%
$11.22
-
0.00%
BAC.WS.A
BANK OF AMERICA CORP-CW19
-100.00%
-320,000
-2.27%
$12.84
-
0.00%
GM.WS.B
GENERAL MOTORS-CW19
-100.00%
-1,000,000
-8.66%
$15.69
-
0.00%
2018 Q4 (3 results)
WFC
WELLS FARGO & CO
+31.95%
+36,741
+0.95%
$46.08
41.82% $65.35
3.94%
SRG
SERITAGE GROWTH PROP- A REIT
+23.38%
+50,000
+0.91%
$32.33
90.91% $2.94
4.80%
WFC.WS
WELLS FARGO & CO-CW18
-100.00%
-110,000
-1.19%
$19.27
-
0.00%
2018 Q3 (4 results)
SRG
SERITAGE GROWTH PROP- A REIT
+221.09%
+147,262
+3.37%
$47.49
93.81% $2.94
4.89%
AXP
AMERICAN EXPRESS CO
-18.35%
-50,000
-2.56%
$106.49
134.50% $249.72
11.40%
C
CITIGROUP INC COM NEW
-100.00%
-106,000
-3.41%
$66.92
3.94% $64.29
0.00%
PKX
POSCO- SPON ADR
-100.00%
-1,281
-0.05%
$74.16
39.90% $44.57
0.00%
2018 Q2 (2 results)
SRG
SERITAGE GROWTH PROP- A REIT
+51.83%
+22,738
+0.45%
$42.43
93.07% $2.94
1.33%
PKX
POSCO- SPON ADR
-93.60%
-18,719
-0.65%
$74.16
39.90% $44.57
0.00%
2018 Q1 (1 result)
PKX
POSCO- SPON ADR
-55.56%
-25,000
-0.95%
$78.85
43.47% $44.57
0.76%
2017 Q4 (5 results)
TOO
TEEKAY OFFSHORE PARTNERS LP
buy
+1,000,000
+1.13%
$2.36
-
1.13%
TERP
TERRAFORM POWER INC - A
buy
+231,183
+1.32%
$11.96
-
1.32%
PKX
POSCO- SPON ADR
-35.71%
-25,000
-0.94%
$78.13
42.96% $44.57
1.68%
2T4
TERRAFORM POWER INC - A
-100.00%
-209,435
-1.33%
$13.22
-
0.00%
ENLC
ENLINK MIDSTREAM LLC
-100.00%
-719
-0.01%
$16.69
15.40% $14.12
0.00%
2017 Q2 (2 results)
2T4
TERRAFORM POWER INC - A
buy
+209,435
+1.53%
$12.00
-
1.53%
SRG
SERITAGE GROWTH PROP- A REIT
-75.63%
-136,131
-3.49%
$41.94
92.99% $2.94
1.12%
2016 Q3 (1 result)
SRG
SERITAGE GROWTH PROP- A REIT
+80.00%
+80,000
+3.23%
$50.68
94.20% $2.94
7.27%
2016 Q2 (1 result)
SRG
SERITAGE GROWTH PROP- A REIT
+33.33%
+25,000
+1.12%
$49.84
94.10% $2.94
4.50%
46 of 56

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.

Value or Price - If the security is completely sold out, we show the reported value (or price) prior to the actual period.