Aflac Incorporated
MX ˙ BMV ˙ US0010551028
SecurityMX:AFL / Aflac Incorporated
InstitutionGreat Diamond Partners, LLC
Latest Disclosed Ownership24,153 shares
Latest Disclosed Value $ 2,649,826
Great Diamond Partners, LLC reports 2.60% increase in ownership of AFL / Aflac Incorporated

On May 12, 2026 - Great Diamond Partners, LLC filed a 13F-HR form disclosing ownership of 24,153 shares of Aflac Incorporated (MX:AFL) valued at $2,649,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 23,541 shares of Aflac Incorporated. This represents a change in shares of 2.60% 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)
2026-05-12 2026-03-31 13F AFLAC COM 001055102 24,153 612 2.60 2,650 2.08 0.5101
2026-02-06 2025-12-31 13F AFLAC COM 001055102 23,541 98 0.42 2,596 -0.88 0.4995
2025-10-20 2025-09-30 13F AFLAC COM 001055102 23,443 74 0.32 2,619 6.25 0.5079
2025-08-13 2025-06-30 13F AFLAC COM 001055102 23,369 -184 -0.78 2,464 -5.88 0.5205
2025-05-13 2025-03-31 13F AFLAC COM 001055102 23,553 -1,279 -5.15 2,619 1.95 0.7159
2025-01-23 2024-12-31 13F AFLAC COM 001055102 24,832 167 0.68 2,569 -6.86 0.6643
2024-10-25 2024-09-30 13F AFLAC COM 001055102 24,665 -3,394 -12.10 2,758 10.06 0.7007
2024-07-29 2024-06-30 13F AFLAC COM 001055102 28,059 -318 -1.12 2,506 2.83 0.5889
2024-05-08 2024-03-31 13F AFLAC COM 001055102 28,377 16,615 141.26 2,436 151.13 0.5595
2024-02-07 2023-12-31 13F AFLAC COM 001055102 11,762 5,932 101.75 970 117.00 0.2391
2023-10-19 2023-09-30 13F AFLAC COM 001055102 5,830 -237 -3.91 447 5.67 0.1211
2023-07-17 2023-06-30 13F AFLAC COM 001055102 6,067 -6 -0.10 423 8.18 0.1118
2023-05-04 2023-03-31 13F AFLAC COM 001055102 6,073 -20 -0.33 392 -10.73 0.1135
2023-02-01 2022-12-31 13F AFLAC COM 001055102 6,093 -119 -1.92 438 25.50 0.1349
2022-10-24 2022-09-30 13F AFLAC INC COM COM 001055102 6,212 -33 -0.53 349 1.16 0.1193
2022-07-26 2022-06-30 13F AFLAC INC COM COM 001055102 6,245 917 17.21 345 0.58 0.1147
2022-05-05 2022-03-31 13F AFLAC INC COM COM 001055102 5,328 -3 -0.06 343 10.29 0.0955
2022-01-26 2021-12-31 13F AFLAC INC COM COM 001055102 5,331 -148 -2.70 311 9.12 0.0801
2021-10-21 2021-09-30 13F AFLAC INC COM COM 001055102 5,479 225 4.28 285 1.42 0.0781
2021-07-26 2021-06-30 13F AFLAC INC COM COM 001055102 5,254 -39 -0.74 281 4.07 0.0795
2021-05-04 2021-03-31 13F AFLAC INC COM COM 001055102 5,293 224 4.42 270 20.00 0.0831
2021-01-26 2020-12-31 13F AFLAC INC COM COM 001055102 5,069 5,069 225 0.0717
2020-04-30 2020-03-31 13F AFLAC INC COM COM 001055102 0 -3,914 -100.00 0 -100.00
2020-02-07 2019-12-31 13F AFLAC INC COM COM 001055102 3,914 3,914 207 0.0787
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.