Aflac Incorporated
MX ˙ BMV ˙ US0010551028
SecurityMX:AFL / Aflac Incorporated
InstitutionMattern Wealth Management LLC
Latest Disclosed Ownership8,403 shares
Latest Disclosed Value $ 921,865
Mattern Wealth Management LLC reports 5.00% decrease in ownership of AFL / Aflac Incorporated

On April 23, 2026 - Mattern Wealth Management LLC filed a 13F-HR form disclosing ownership of 8,403 shares of Aflac Incorporated (MX:AFL) valued at $921,865 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 8,845 shares of Aflac Incorporated. This represents a change in shares of -5.00% 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)
2026-04-23 2026-03-31 13F AFLAC COM 001055102 8,403 -442 -5.00 922 -5.54 0.1797
2026-01-16 2025-12-31 13F AFLAC COM 001055102 8,845 -40 -0.45 975 -1.71 0.1878
2025-10-20 2025-09-30 13F AFLAC COM 001055102 8,885 -447 -4.79 992 0.81 0.1981
2025-07-17 2025-06-30 13F AFLAC COM 001055102 9,332 -55 -0.59 984 -5.66 0.2048
2025-04-23 2025-03-31 13F AFLAC COM 001055102 9,387 -536 -5.40 1,044 1.66 0.2309
2025-01-22 2024-12-31 13F AFLAC COM 001055102 9,923 -1,180 -10.63 1,026 -17.32 0.2264
2024-10-21 2024-09-30 13F AFLAC COM 001055102 11,103 -19,536 -63.76 1,241 -54.64 0.2728
2024-07-17 2024-06-30 13F AFLAC COM 001055102 30,639 -2,931 -8.73 2,736 -5.07 0.6578
2024-05-14 2024-03-31 13F AFLAC COM 001055102 33,570 -271 -0.80 2,882 3.26 0.7012
2024-02-12 2023-12-31 13F AFLAC COM 001055102 33,841 1,623 5.04 2,792 12.90 0.7178
2023-11-01 2023-09-30 13F AFLAC COM 001055102 32,218 5,333 19.84 2,473 31.77 0.7250
2023-07-26 2023-06-30 13F AFLAC COM 001055102 26,885 4,912 22.35 1,877 32.39 0.5476
2023-05-05 2023-03-31 13F AFLAC COM 001055102 21,973 15,589 244.19 1,418 208.71 0.4694
2023-02-06 2022-12-31 13F AFLAC COM 001055102 6,384 208 3.37 459 32.28 0.1857
2022-11-01 2022-09-30 13F AFLAC COM 001055102 6,176 1,318 27.13 347 29.00 0.1394
2022-07-25 2022-06-30 13F AFLAC COM 001055102 4,858 0 0.00 269 -14.06 0.1053
2022-04-14 2022-03-31 13F AFLAC COM 001055102 4,858 0 0.00 313 10.21 0.1025
2022-01-27 2021-12-31 13F AFLAC COM 001055102 4,858 -154 -3.07 284 8.81 0.0834
2021-10-13 2021-09-30 13F AFLAC COM 001055102 5,012 -1,100 -18.00 261 -19.69 0.0878
2021-07-27 2021-06-30 13F AFLAC COM 001055102 6,112 -237 -3.73 325 0.00 0.1036
2021-05-13 2021-03-31 13F AFLAC COM 001055102 6,349 -20,198 -76.08 325 -72.48 0.1145
2021-02-12 2020-12-31 13F AFLAC COM 001055102 26,547 -2,334 -8.08 1,181 12.48 0.4467
2020-11-12 2020-09-30 13F AFLAC COM 001055102 28,881 -151 -0.52 1,050 0.38 0.4495
2020-07-29 2020-06-30 13F AFLAC COM 001055102 29,032 1,116 4.00 1,046 9.41 0.5082
2020-05-13 2020-03-31 13F AFLAC COM 001055102 27,916 -1,040 -3.59 956 -37.60 0.6893
2020-02-12 2019-12-31 13F AFLAC COM 001055102 28,956 28,956 1,532 0.9195
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.