Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns AXP? 13F holders and whale ownership

AXP is tracked across public portfolios in Whale Analyzer. This page answers who owns AXP, which top funds are buying AXP, aggregate disclosed value, and recent position changes based on public data. Warren Buffett is the largest reported holder at $45.86B; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (1 increased, 2 reduced); the stock trades above the aggregate whale cost basis of $97.94. Top tracked holders include Warren Buffett, NPS Korea, Tom Gayner, and Guy Spier.

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NYQ · latest quote
$340.36
+$2.36 (+0.7%)
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6Tracked holders
$46.39BAggregate reported value
2026-05-21Page updated
3 held, 2 reduced, 1 increasedRecent changes

Top holders

InvestorReported valueSharesChange
Warren Buffett 13F portfolio
Berkshire Hathaway holdings
$45.86B151.6MHeld
NPS Korea 13F portfolio
National Pension Service holdings
$357.3M1.2MReduced
Tom Gayner 13F portfolio
Markel Group holdings
$148.4M490.4KIncreased
Guy Spier 13F portfolio
Aquamarine Fund holdings
$19.7M65.0KHeld
Chris Bloomstran 13F portfolio
Semper Augustus Investments holdings
$1.0M3.4KReduced
Ruane, Cunniff & Goldfarb 13F portfolio
Ruane, Cunniff & Goldfarb holdings
$281.9K932Held

Ownership concentration

Reported ownership of AXP is highly concentrated across tracked institutions.

Whale activity this quarter

Across 6 tracked institutions, 3 held, 2 reduced, 1 increased. Net positioning is net selling.

Whale cost basis vs current price

The aggregate tracked cost basis is $97.94 versus a current price of $340.36, so AXP trades above its cost basis (+247.5%). Average unrealized P&L across tracked holders: 199%.

Sector positioning — Financials

AXP sits within the Financials sector alongside 84 other tracked names. Compare whale ownership across peers:

How to use this page

Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live AXP dashboard for price charts and cross-investor scans, or read the SEC 13F guide.

This page is generated from public filings and public disclosures. It is for research and education only and is not investment advice.

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Learn more in Whale Analyzer Academy

Deepen your read on AXP with these Whale Analyzer Academy guides:

Frequently asked questions

Who owns AXP stock?

Whale Analyzer tracks 6 public institutional holders of AXP with a combined reported value of $46.39B. See the holder table above for the largest tracked positions.

Which top funds are buying AXP?

Tracked institutions were net selling last quarter — 3 held, 2 reduced, 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.

How concentrated is AXP ownership?

The top five tracked holders report 100.0% of aggregate ownership.

Is AXP above or below the whale cost basis?

The aggregate tracked cost basis is $97.94 versus a current price of $340.36 (+247.5%).

What does 13F ownership mean for AXP?

Use the interactive AXP dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.