Capital One Financial Corporation
MX ˙ BMV ˙ US14040H1059
SecurityMX:COF / Capital One Financial Corporation
InstitutionMariner, LLC
Latest Disclosed Ownership214,444 shares
Latest Disclosed Value $ 39,116,480
Mariner, LLC reports 1.62% decrease in ownership of COF / Capital One Financial Corporation

On May 13, 2026 - Mariner, LLC filed a 13F-HR form disclosing ownership of 214,444 shares of Capital One Financial Corporation (MX:COF) valued at $39,116,480 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 217,975 shares of Capital One Financial Corporation. This represents a change in shares of -1.62% 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)
2026-05-13 2026-03-31 13F CAPITAL ONE FINL COM 14040H105 214,444 -3,531 -1.62 39,116 -25.98 0.0457
2026-02-13 2025-12-31 13F CAPITAL ONE FINL COM 14040H105 217,975 62,594 40.28 52,845 59.98 0.0629
2025-11-14 2025-09-30 13F CAPITAL ONE FINL COM 14040H105 155,381 18,946 13.89 33,033 13.81 0.0427
2025-08-14 2025-06-30 13F CAPITAL ONE FINL COM 14040H105 136,435 56,714 71.14 29,025 103.08 0.0419
2025-05-15 2025-03-31 13F CAPITAL ONE FINL COM 14040H105 79,721 1,334 1.70 14,293 2.25 0.0238
2025-02-13 2024-12-31 13F CAPITAL ONE FINL COM 14040H105 78,387 1,453 1.89 13,978 21.36 0.0235
2024-11-13 2024-09-30 13F CAPITAL ONE FINL COM 14040H105 76,934 387 0.51 11,517 8.69 0.0204
2024-08-13 2024-06-30 13F CAPITAL ONE FINL COM 14040H105 76,547 4,591 6.38 10,597 -1.08 0.0205
2024-05-15 2024-03-31 13F CAPITAL ONE FINL COM 14040H105 71,956 -1,616 -2.20 10,713 11.05 0.0222
2024-02-14 2023-12-31 13F CAPITAL ONE FINL COM 14040H105 73,572 7,976 12.16 9,647 51.52 0.0229
2023-11-13 2023-09-30 13F CAPITAL ONE FINL COM 14040H105 65,596 2,228 3.52 6,366 -8.14 0.0171
2023-08-11 2023-06-30 13F CAPITAL ONE FINL COM 14040H105 63,368 -846 -1.32 6,931 115,400.00 0.0185
2023-05-15 2023-03-31 13F CAPITAL ONE FINL COM 14040H105 64,214 6,337 10.95 6 -99.89 0.0179
2023-02-14 2022-12-31 13F CAPITAL ONE FINL COM 14040H105 57,877 -7,557 -11.55 5,380 -10.79 0.0173
2022-11-10 2022-09-30 13F CAPITAL ONE FINL COM 14040H105 65,434 1,917 3.02 6,031 -8.87 0.0241
2022-08-15 2022-06-30 13F CAPITAL ONE FINL COM 14040H105 63,517 -746 -1.16 6,618 -21.56 0.0272
2022-05-13 2022-03-31 13F CAPITAL ONE FINL COM 14040H105 64,263 6,941 12.11 8,437 1.44 0.0318
2022-02-14 2021-12-31 13F CAPITAL ONE FINL COM 14040H105 57,322 39,444 220.63 8,317 187.19 0.0352
2021-11-15 2021-09-30 13F CAPITAL ONE FINL COM 14040H105 17,878 3,292 22.57 2,896 28.37 0.0151
2021-08-24 2021-06-30 13F CAPITAL ONE FINL COM 14040H105 14,586 480 3.40 2,256 25.68 0.0140
2021-05-07 2021-03-31 13F CAPITAL ONE FINL COM 14040H105 14,106 -725 -4.89 1,795 22.44 0.0125
2021-02-16 2020-12-31 13F CAPITAL ONE FINL COM 14040H105 14,831 1,271 9.37 1,466 50.51 0.0112
2020-11-13 2020-09-30 13F CAPITAL ONE FINL COM 14040H105 13,560 -1,702 -11.15 974 1.99 0.0092
2020-08-14 2020-06-30 13F CAPITAL ONE FINL COM 14040H105 15,262 1,343 9.65 955 36.04 0.0096
2020-05-14 2020-03-31 13F CAPITAL ONE FINL COM 14040H105 13,919 -135 -0.96 702 -51.45 0.0088
2020-02-13 2019-12-31 13F CAPITAL ONE FINL COM 14040H105 14,054 -596 -4.07 1,446 8.48 0.0150
2019-11-13 2019-09-30 13F CAPITAL ONE FINL COM 14040H105 14,650 1,229 9.16 1,333 9.44 0.0159
2019-08-14 2019-06-30 13F CAPITAL ONE FINL COM 14040H105 13,421 680 5.34 1,218 17.00 0.0145
2019-05-15 2019-03-31 13F CAPITAL ONE FINL COM 14040H105 12,741 -548 -4.12 1,041 3.58 0.0148
2019-02-13 2018-12-31 13F CAPITAL ONE FINL COM 14040H105 13,289 6,172 86.72 1,005 48.67 0.0179
2018-11-14 2018-09-30 13F CAPITAL ONE FINL COM 14040H105 7,117 277 4.05 676 7.47 0.0174
2018-08-14 2018-06-30 13F CAPITAL ONE FINL COM 14040H105 6,840 1,689 32.79 629 27.33 0.0178
2018-05-15 2018-03-31 13F CAPITAL ONE FINL COM 14040H105 5,151 -4,229 -45.09 494 -47.11 0.0177
2018-02-09 2017-12-31 13F CAPITAL ONE FINL COM 14040H105 9,380 335 3.70 934 22.09 0.0361
2017-11-14 2017-09-30 13F CAPITAL ONE FINL COM 14040H105 9,045 0 0.00 765 2.41 0.0346
2017-08-11 2017-06-30 13F CAPITAL ONE FINL COM 14040H105 9,045 719 8.64 747 3.46 0.0351
2017-05-15 2017-03-31 13F CAPITAL ONE FINL COM 14040H105 8,326 -1,285 -13.37 722 -13.95 0.0314
2017-02-14 2016-12-31 13F CAPITAL ONE FINL COM 14040H105 9,611 -2,934 -23.39 839 -6.88 0.0387
2016-11-14 2016-09-30 13F CAPITAL ONE FINL COM 14040H105 12,545 5,487 77.74 901 101.12 0.0435
2016-08-12 2016-06-30 13F CAPITAL ONE FINL COM 14040H105 7,058 -30,654 -81.28 448 -82.85 0.0242
2016-05-13 2016-03-31 13F CAPITAL ONE FINL COM 14040H105 37,712 3,848 11.36 2,613 6.91 0.1552
2016-02-16 2015-12-31 13F CAPITAL ONE FINL COM 14040H105 33,864 -156,117 -82.18 2,444 -82.26 0.1568
2015-11-16 2015-09-30 13F CAPITAL ONE FINL COM 14040H105 189,981 11,123 6.22 13,778 -12.44 0.6122
2015-08-17 2015-06-30 13F CAPITAL ONE FINL COM 14040H105 178,858 157,211 726.25 15,735 822.33 0.7296
2015-05-15 2015-03-31 13F CAPITAL ONE FINL COM 14040H105 21,647 1,964 9.98 1,706 4.98 0.1450
2015-02-13 2014-12-31 13F CAPITAL ONE FINL COM 14040H105 19,683 234 1.20 1,625 2.33 0.1463
2014-11-13 2014-09-30 13F CAPITAL ONE FINL COM 14040H105 19,449 363 1.90 1,588 0.76 0.1788
2014-08-21 2014-06-30 13F CAPITAL ONE FINL COM 14040H105 19,086 435 2.33 1,576 9.52 0.1747
2014-05-08 2014-03-31 13F CAPITAL ONE FINL COM 14040H105 18,651 4,139 28.52 1,439 29.41 0.1853
2014-02-14 2013-12-31 13F CAPITAL ONE FINL COM 14040H105 14,512 14,512 1,112 0.1393
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.