Capital One Financial Corporation
MX ˙ BMV ˙ US14040H1059
SecurityMX:COF / Capital One Financial Corporation
InstitutionMassmutual Trust Co Fsb/adv
Latest Disclosed Ownership9,807 shares
Latest Disclosed Value $ 1,789,091
Massmutual Trust Co Fsb/adv reports 3.72% decrease in ownership of COF / Capital One Financial Corporation

On April 13, 2026 - Massmutual Trust Co Fsb/adv filed a 13F-HR form disclosing ownership of 9,807 shares of Capital One Financial Corporation (MX:COF) valued at $1,789,091 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 10,186 shares of Capital One Financial Corporation. This represents a change in shares of -3.72% 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)
2026-04-13 2026-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 9,807 -379 -3.72 1,789 -27.51 0.0487
2026-01-07 2025-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 10,186 -59 -0.58 2,469 13.37 0.0635
2025-10-22 2025-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 10,245 -710 -6.48 2,178 -6.57 0.0555
2025-07-09 2025-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 10,955 1,439 15.12 2,331 36.58 0.0621
2025-04-01 2025-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 9,516 234 2.52 1,706 3.08 0.0494
2025-01-16 2024-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 9,282 11 0.12 1,655 19.24 0.0464
2024-10-02 2024-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 9,271 -62 -0.66 1,388 7.43 0.0395
2024-07-02 2024-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 9,333 173 1.89 1,292 -5.21 0.0392
2024-04-09 2024-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 9,160 -175 -1.87 1,364 11.36 0.0424
2024-01-03 2023-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 9,335 -13,027 -58.26 1,224 -43.59 0.0411
2023-10-04 2023-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 22,362 -13,365 -37.41 2,170 -44.46 0.0801
2023-08-02 2023-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 35,727 -18,430 -34.03 3,907 -24.97 0.1405
2023-04-11 2023-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 54,157 -941 -1.71 5,208 104,040.00 0.1990
2023-01-06 2022-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 55,098 360 0.66 5 0.00 0.2107
2022-10-07 2022-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 54,738 -643 -1.16 5 0.00 0.2289
2022-07-07 2022-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 55,381 372 0.68 6 -28.57 0.2499
2022-04-08 2022-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 55,009 -2,720 -4.71 7 -12.50 0.2730
2022-02-09 2021-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 57,729 -22 -0.04 8 -11.11 0.3110
2021-11-12 2021-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 57,751 -5 -0.01 9 12.50 0.3867
2021-08-16 2021-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 57,756 1,213 2.15 9 14.29 0.3795
2021-05-17 2021-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 56,543 -488 -0.86 7 40.00 0.3383
2021-02-16 2020-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 57,031 -317 -0.55 6 25.00 0.2887
2020-11-13 2020-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 57,348 1,764 3.17 4 -99.89 0.2409
2020-08-13 2020-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 55,584 12,003 27.54 3,479 58.35 0.2242
2020-05-15 2020-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 43,581 -39,630 -47.63 2,197 -74.34 0.1754
2020-05-15 2019-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 83,211 1,182 1.44 8,563 14.74 0.5289
2019-11-14 2019-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 82,029 7,886 10.64 7,463 10.92 0.4998
2019-08-14 2019-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 74,143 2,566 3.58 6,728 15.07 0.4652
2019-05-15 2019-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 71,577 4,693 7.02 5,847 15.67 0.4216
2019-02-26 2018-12-31 13F Capital One Financial Common / Ordinary Stock 14040H105 66,884 5,131 8.31 5,056 -13.77 0.4327
2018-11-09 2018-09-30 13F Capital One Financial Common / Ordinary Stock 14040H105 61,753 2,258 3.80 5,862 7.23 0.4350
2018-08-20 2018-06-30 13F Capital One Financial Common / Ordinary Stock 14040H105 59,495 94 0.16 5,468 -3.94 0.4364
2018-05-21 2018-03-31 13F Capital One Financial Common / Ordinary Stock 14040H105 59,401 -587 -0.98 5,692 -4.72 0.4709
2018-03-01 2017-12-31 13F/A-1 Capital One Financial Common / Ordinary Stock 14040H105 59,988 -2,184 -3.51 5,974 13.49 0.4949
2018-02-21 2017-12-31 13F Corning Common / Ordinary Stock 14040H105 12,262 -49,910 392
2018-02-13 2017-09-30 13F Capital One Financial common 14040H105 62,172 675 1.10 5,263 3.60 0.4362
2017-08-14 2017-06-30 13F Capital One Financial common 14040H105 61,497 -2,767 -4.31 5,081 -8.78 0.4523
2017-05-02 2017-03-31 13F Capital One Financial common 14040H105 64,264 4,641 7.78 5,569 7.08 0.5231
2017-02-13 2016-12-31 13F Capital One Financial common 14040H105 59,623 8,541 16.72 5,202 60.33 0.6362
2016-08-10 2016-06-30 13F CAPITAL ONE FINANCIAL common 14040H105 51,082 21,040 70.04 3,244 55.81 0.4100
2016-05-10 2016-03-31 13F CAPITAL ONE FINANCIAL common 14040H105 30,042 2,182 7.83 2,082 3.58 0.2808
2016-02-12 2015-12-31 13F CAPITAL ONE FINANCIAL common 14040H105 27,860 8,132 41.22 2,011 24.84 0.2876
2015-11-04 2015-09-30 13F CAPITAL ONE FINANCIAL common 14040H105 19,728 813 4.30 1,610 3.07 0.3397
2015-07-29 2015-06-30 13F CAPITAL ONE FINANCIAL common 14040H105 18,915 -4,178 -18.09 1,562 -14.18 0.3490
2015-05-11 2015-03-31 13F CAPITAL ONE FINANCIAL common 14040H105 23,093 23,093 0.00 1,820 0.2999
2015-02-05 2014-12-31 13F CAPITAL ONE FINANCIAL COMMON STOCK 14040H105 0 -19,728 -100.00 0 -100.00
2014-11-04 2014-09-30 13F CAPITAL ONE FINANCIAL COMMON STOCK 14040H105 19,728 19,728 1,610 0.3200
2014-05-15 2014-03-31 13F CAPITAL ONE FINANCIAL common 14040H105 0 0 0 0.0000
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.