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American Express Company

AXP

American Express Company

American Express Company historical holders

total: 31

Aquamarine Capital American Express Company transactions over time

Total transactions:
4
New positions:
1
Reduced:
3
Held since:
2014 Q4
Held for:
47 quarters
Latest activity:
2025 Q4
Guy Spier has been an institutional investor in American Express Company (AXP) since 2014 Q4. According to 2026 Q2 report, Guy Spier holds 65,000 shares with a market value of roughly $21.99M representing 15.26% of their equity portfolio. The fund/company first acquired AXP in 2014 Q4, initially purchasing 272,430 shares. Since the initial investment, Aquamarine Capital has made 3 more transactions in this position.

Does Guy Spier still hold AXP?

Yes, Guy Spier continues to hold American Express Company (AXP). According to their 2026 Q2 report, they maintain a position of 65,000 shares valued at approximately $21.99M, representing 15.26% of their equity portfolio.

When did Guy Spier first invest in AXP?

Guy Spier first invested in American Express Company (AXP) in 2014 Q4 at the reported quarter-end price of $93.04 per share, acquiring 272,430 shares in their initial purchase.

What is Guy Spier's average cost basis for AXP?

Based on historical transaction data, Guy Spier's estimated cost basis for American Express Company (AXP) is approximately $93.04 per share. This represents their average reported price* across all buy transactions.

Estimated cost basis*

Weighted AVG buy price:
$93.04
Weighted AVG sell price:
$289.41

AXP transactions history by Aquamarine Capital

4 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2025 Q4
16.30%
65,000
$369.95
$24,047,000
-69.05% (-145,000)
-16.9%
2020 Q1
12.26%
$85.61
-5.59% (-12,430)
2018 Q3
11.40%
$106.49
-18.35% (-50,000)
2014 Q4
16.79%
$93.04
new
* Shares, change to shares, sold shares, shares held after: 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.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.