Aflac Incorporated
MX ˙ BMV ˙ US0010551028
SecurityMX:AFL / Aflac Incorporated
InstitutionBrown Advisory Inc
Latest Disclosed Ownership26,919 shares
Latest Disclosed Value $ 2,953,263
Brown Advisory Inc reports 0.37% decrease in ownership of AFL / Aflac Incorporated

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 26,919 shares of Aflac Incorporated (MX:AFL) valued at $2,953,263 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 27,018 shares of Aflac Incorporated. This represents a change in shares of -0.37% 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 AFLAC COM 001055102 26,919 -99 -0.37 2,953 -0.87 0.0022
2026-02-13 2025-12-31 13F AFLAC COM 001055102 27,018 -2,182 -7.47 2,979 -8.65 0.0042
2025-11-14 2025-09-30 13F AFLAC COM 001055102 29,200 -2,193 -6.99 3,262 -1.48 0.0042
2025-08-13 2025-06-30 13F AFLAC COM 001055102 31,393 1,480 4.95 3,311 -0.48 0.0044
2025-04-30 2025-03-31 13F AFLAC COM 001055102 29,913 1,190 4.14 3,326 11.95 0.0048
2025-02-14 2024-12-31 13F AFLAC COM 001055102 28,723 637 2.27 2,971 -5.35 0.0038
2024-11-13 2024-09-30 13F AFLAC COM 001055102 28,086 -87 -0.31 3,140 24.76 0.0039
2024-08-14 2024-06-30 13F AFLAC COM 001055102 28,173 2,217 8.54 2,516 12.93 0.0033
2024-04-24 2024-03-31 13F AFLAC COM 001055102 25,956 320 1.25 2,229 5.39 0.0030
2024-02-08 2023-12-31 13F AFLAC COM 001055102 25,636 932 3.77 2,115 11.50 0.0030
2023-10-25 2023-09-30 13F AFLAC COM 001055102 24,704 -115 -0.46 1,896 9.47 0.0031
2023-07-31 2023-06-30 13F AFLAC COM 001055102 24,819 -1,015 -3.93 1,732 3.96 0.0027
2023-05-08 2023-03-31 13F AFLAC COM 001055102 25,834 460 1.81 1,667 -8.71 0.0028
2023-02-13 2022-12-31 13F AFLAC COM 001055102 25,374 1,023 4.20 1,825 33.41 0.0034
2022-11-14 2022-09-30 13F AFLAC COM 001055102 24,351 2,545 11.67 1,368 13.43 0.0027
2022-11-14 2022-06-30 13F/A-2 AFLAC COM 001055102 21,806 -3,374 -13.40 1,206 -25.60 0.0023
2022-09-13 2022-06-30 13F/A-1 AFLAC COM 001055102 24,784 -3,416 1,371 0.0024
2022-08-02 2022-06-30 13F AFLAC COM 001055102 21,526 -3,374 1,203 0.0019
2022-11-14 2022-03-31 13F/A-2 AFLAC COM 001055102 25,180 -29 -0.12 1,621 10.12 0.0024
2022-09-13 2022-03-31 13F/A-1 AFLAC COM 001055102 28,200 2,991 1,816 0.0025
2022-05-09 2022-03-31 13F AFLAC COM 001055102 24,900 -309 1,580 0.0021
2022-01-27 2021-12-31 13F AFLAC COM 001055102 25,209 -3,162 -11.15 1,472 -0.47 0.0018
2021-11-12 2021-09-30 13F AFLAC COM 001055102 28,371 4,068 16.74 1,479 13.33 0.0022
2021-07-29 2021-06-30 13F AFLAC COM 001055102 24,303 2,186 9.88 1,305 15.28 0.0020
2021-05-14 2021-03-31 13F AFLAC COM 001055102 22,117 -5,811 -20.81 1,132 -8.86 0.0019
2021-02-12 2020-12-31 13F AFLAC COM 001055102 27,928 -1,661 -5.61 1,242 15.43 0.0022
2020-11-16 2020-09-30 13F AFLAC COM 001055102 29,589 -222 -0.74 1,076 0.19 0.0022
2020-08-14 2020-06-30 13F AFLAC COM 001055102 29,811 -5,604 -15.82 1,074 -11.46 0.0025
2020-05-15 2020-03-31 13F AFLAC COM 001055102 35,415 -3,011 -7.84 1,213 -40.33 0.0037
2020-02-14 2019-12-31 13F AFLAC COM 001055102 38,426 1,908 5.22 2,033 6.38 0.0052
2019-11-14 2019-09-30 13F AFLAC COM 001055102 36,518 1,080 3.05 1,911 -1.60 0.0054
2019-08-12 2019-06-30 13F AFLAC COM 001055102 35,438 -228,714 -86.58 1,942 -85.30 0.0056
2019-05-15 2019-03-31 13F AFLAC COM 001055102 264,152 -83,365 -23.99 13,208 -16.58 0.0375
2019-02-13 2018-12-31 13F AFLAC COM 001055102 347,517 2,985 0.87 15,833 -2.37 0.0532
2018-11-13 2018-09-30 13F AFLAC COM 001055102 344,532 -3,097 -0.89 16,217 8.44 0.0461
2018-08-10 2018-06-30 13F AFLAC COM 001055102 347,629 119,795 52.58 14,955 50.02 0.0460
2018-06-28 2018-03-31 13F/A-1 AFLAC COM 001055102 227,834 98,483 76.14 9,969 -12.20 0.0322
2018-05-14 2018-03-31 13F AFLAC COM 001055102 210,912 81,561 9,230
2018-02-12 2017-12-31 13F AFLAC COM 001055102 129,351 232 0.18 11,354 8.03 0.0359
2017-11-13 2017-09-30 13F AFLAC COM 001055102 129,119 -3,842 -2.89 10,510 1.76 0.0349
2017-08-14 2017-06-30 13F AFLAC COM 001055102 132,961 36,034 37.18 10,328 47.10 0.0316
2017-05-15 2017-03-31 13F AFLAC COM 001055102 96,927 15,899 19.62 7,021 24.51 0.0239
2017-02-13 2016-12-31 13F AFLAC COM 001055102 81,028 -1,813 -2.19 5,639 -5.27 0.0201
2016-11-14 2016-09-30 13F AFLAC COM 001055102 82,841 1,056 1.29 5,953 0.88 0.0205
2016-08-09 2016-06-30 13F AFLAC COM 001055102 81,785 7,596 10.24 5,901 25.98 0.0207
2016-05-13 2016-03-31 13F AFLAC COM 001055102 74,189 9,011 13.83 4,684 19.98 0.0162
2016-02-08 2015-12-31 13F AFLAC COM 001055102 65,178 845 1.31 3,904 4.41 0.0132
2015-11-13 2015-09-30 13F AFLAC COM 001055102 64,333 7,954 14.11 3,739 6.65 0.0134
2015-08-11 2015-06-30 13F AFLAC COM 001055102 56,379 -636 -1.12 3,506 -3.92 0.0114
2015-05-14 2015-03-31 13F AFLAC COM 001055102 57,015 42,312 287.78 3,649 306.35 0.0116
2015-02-13 2014-12-31 13F/A-1 AFLAC COM 001055102 14,703 -163 -1.10 898 3.82 0.0028
2015-02-09 2014-12-31 13F AFLAC COM 001055102 14,628 890
2014-11-10 2014-09-30 13F AFLAC COM 001055102 14,866 1,165 8.50 865 1.41 0.0028
2014-08-08 2014-06-30 13F AFLAC COM 001055102 13,701 1,204 9.63 853 8.25 0.0027
2014-05-13 2014-03-31 13F AFLAC COM 001055102 12,497 139 1.12 788 -4.60 0.0025
2014-02-11 2013-12-31 13F AFLAC COM 001055102 12,358 387 3.23 826 11.32 0.0027
2013-11-08 2013-09-30 13F AFLAC COM 001055102 11,971 -1,652 -12.13 742 -6.31 0.0026
2013-08-13 2013-06-30 13F AFLAC COM 001055102 13,623 13,623 792 0.0032
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.