American Express (AXP) Held by Superinvestors
AMERICAN EXPRESS CO (AXP) is currently held by 19 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $52.29B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Berkshire Hathaway is currently the largest disclosed institutional shareholder of AXP tracked by InsiderSet, reporting ownership valued at approximately $51.28B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $49.08B, representing an estimated loss of -4.30% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed AXP value among the investors covered in this analysis. Major shareholders include Berkshire Hathaway, First Eagle U.S. Value, Markel Group Inc., and several other long-term asset managers with concentrated positions in AMERICAN EXPRESS CO (AXP).
This page ranks the largest institutional AXP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Berkshire Hathaway | Warren Buffett | 17.14% | 151,610,700 | $51,282,319,275 | $49,077,899,697 | -$2,204,419,578 | -4.30% |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.94% | 1,680,147 | $568,309,886 | $543,880,385 | -$24,429,501 | -4.30% |
| Markel Group Inc. | Thomas Gayner | 1.26% | 490,450 | $165,894,715 | $158,763,570 | -$7,131,146 | -4.30% |
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 0.05% | 271,279 | $91,760,122 | $87,815,725 | -$3,944,397 | -4.30% |
| Mairs & Power Growth Fund | Andrew R. Adams | 0.45% | 145,612 | $49,253,116 | $47,136,061 | -$2,117,055 | -4.30% |
| Aquamarine Capital | Guy Spier | 17.10% | 210,000 | $29,110,000 | $67,979,100 | +$38,869,100 | +133.52% |
| Aquamarine Zurich AG | 15.26% | 65,000 | $21,986,000 | $21,041,150 | -$944,850 | -4.30% | |
| Tweedy, Browne Co All Funds (US) | B. Tweedy, Ch. Browne | 1.61% | 62,719 | $21,214,702 | $20,302,767 | -$911,935 | -4.30% |
| Sequoia Financial Advisors | 0.10% | 60,686 | $20,527,076 | $19,644,665 | -$882,411 | -4.30% | |
| Giverny Capital | Francois Rochon | 0.53% | 46,702 | $15,753,986 | $15,117,904 | -$636,082 | -4.04% |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 34,580 | $11,696,685 | $11,193,892 | -$502,793 | -4.30% |
| Cullen Value Fund | Jim Cullen | 0.38% | 10,373 | $3,231,394 | $3,357,844 | +$126,450 | +3.91% |
| Lindsell Train | Michael Lindsell, Nick Train | 0.10% | 7,600 | $2,570,700 | $2,460,196 | -$110,504 | -4.30% |
| Gardner Russo & Quinn | Thomas Russo | 0.02% | 5,125 | $1,733,531 | $1,659,014 | -$74,517 | -4.30% |
| Semper Augustus Investments Group | Christopher Bloomstran | 0.13% | 3,311 | $1,119,946 | $1,071,804 | -$48,142 | -4.30% |
| Matrix Advisors Value Fund | David Katz | 0.07% | 2,836 | $862,429 | $918,042 | +$55,613 | +6.45% |
| Torray Fund | Robert Torray | 0.09% | 1,965 | $664,661 | $636,090 | -$28,571 | -4.30% |
| Sequoia Fund | Ruane, Cunniff & Goldfarb | 0.00% | 932 | $315,249 | $301,698 | -$13,551 | -4.30% |
| Eagle Capital Management | Ravenel Boykin Curry IV | 0.70% | 6,713 | $2,041 | $2,173,065 | +$2,171,024 | +106370.61% |
Frequently asked questions about AXP
Who are the largest superinvestors holding AXP?
The largest superinvestors holding AXP in the latest SEC Form 13F filings include Berkshire Hathaway, First Eagle U.S. Value, Markel Group Inc., Dodge & Cox Stock Fund, and Mairs & Power Growth Fund. InsiderSet ranks these superinvestors by their latest reported AXP position.
What does the AXP superinvestors page include?
This page tracks AXP positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. AMERICAN EXPRESS CO (AXP) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold AXP?
InsiderSet currently tracks 19 superinvestors reporting AXP holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own AXP.
How much AXP stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $52.29B in AXP holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were AXP superinvestor holdings last updated?
The latest AXP superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor AXP holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its AXP position after the reporting date.
Are superinvestors buying or selling AXP?
Buying and selling can be analyzed by comparing AXP positions across consecutive 13F reporting periods. InsiderSet's AXP Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AXP ownership changes.
How have superinvestor AXP holdings changed over time?
InsiderSet tracks AXP holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.