American Express Company
MX ˙ BMV ˙ US0258161092
SecurityMX:AXP / American Express Company
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership302,722 shares
Latest Disclosed Value $ 91,567,496
Quantinno Capital Management LP reports 28.64% increase in ownership of AXP / American Express Company

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 302,722 shares of American Express Company (MX:AXP) valued at $91,567,496 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 235,325 shares of American Express Company. This represents a change in shares of 28.64% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMERICAN EXPRESS COM 025816109 302,722 67,397 28.64 91,567 5.18 0.1528
2026-02-17 2025-12-31 13F AMERICAN EXPRESS COM 025816109 235,325 59,234 33.64 87,059 48.84 0.1748
2025-11-14 2025-09-30 13F AMERICAN EXPRESS COM 025816109 176,091 44,618 33.94 58,490 39.47 0.1596
2025-08-14 2025-06-30 13F AMERICAN EXPRESS COM 025816109 131,473 46,142 54.07 41,937 82.67 0.1811
2025-05-12 2025-03-31 13F AMERICAN EXPRESS COM 025816109 85,331 29,175 51.95 22,958 37.75 0.1495
2025-02-14 2024-12-31 13F AMERICAN EXPRESS COM 025816109 56,156 19,745 54.23 16,667 68.79 0.1639
2024-11-14 2024-09-30 13F AMERICAN EXPRESS COM 025816109 36,411 6,789 22.92 9,875 43.98 0.1284
2024-08-14 2024-06-30 13F AMERICAN EXPRESS COM 025816109 29,622 3,742 14.46 6,859 16.38 0.1234
2024-05-14 2024-03-31 13F AMERICAN EXPRESS COM 025816109 25,880 4,725 22.34 5,893 48.70 0.1281
2024-02-14 2023-12-31 13F AMERICAN EXPRESS COM 025816109 21,155 5,327 33.66 3,963 67.85 0.1387
2023-11-14 2023-09-30 13F AMERICAN EXPRESS COM 025816109 15,828 2,509 18.84 2,361 1.77 0.1075
2023-08-04 2023-06-30 13F AMERICAN EXPRESS COM 025816109 13,319 818 6.54 2,320 12.51 0.1325
2023-05-03 2023-03-31 13F AMERICAN EXPRESS COM 025816109 12,501 97 0.78 2,062 12.49 0.1364
2023-02-13 2022-12-31 13F AMERICAN EXPRESS COM 025816109 12,404 4,153 50.33 1,833 64.69 0.1367
2022-11-08 2022-09-30 13F AMERICAN EXPRESS COM 025816109 8,251 1,032 14.30 1,113 11.19 0.1433
2022-08-15 2022-06-30 13F AMERICAN EXPRESS COM 025816109 7,219 3,839 113.58 1,001 58.39 0.1444
2022-05-12 2022-03-31 13F AMERICAN EXPRESS COM 025816109 3,380 3,380 632 0.0964
2019-05-14 2019-03-31 13F AMERICAN EXPRESS COM 025816109 0 -5,547 -100.00 0 -100.00
2019-02-14 2018-12-31 13F AMERICAN EXPRESS COM 025816109 5,547 5,547 529 0.4308
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.