Aflac Incorporated
MX ˙ BMV ˙ US0010551028
SecurityMX:AFL / Aflac Incorporated
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership237,866 shares
Latest Disclosed Value $ 25,605,408
Mercer Global Advisors Inc /adv ownership in AFL / Aflac Incorporated

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 237,866 shares of Aflac Incorporated (MX:AFL) valued at $25,605,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 258,224 shares of Aflac Incorporated. This represents a change in shares of -7.88% during the quarter.

Mercer Global Advisors Inc /adv has a history of taking positions in derivatives of the underlying security (AFL) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AFL / Aflac Incorporated Historical Put/Call Ratio
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 237,866 -20,358 -7.88 25,605 -9.54 0.0379
2026-02-17 2025-12-31 13F AFLAC COM 001055102 258,224 5,767 2.28 28,304 3.61 0.0431
2025-11-14 2025-09-30 13F AFLAC COM 001055102 252,457 252,457 27,320 0.0456
2025-08-14 2025-06-30 13F AFLAC COM 001055102 0 -307,772 -100.00 0 -100.00
2025-05-15 2025-03-31 13F AFLAC COM 001055102 307,772 -102,217 -24.93 34,221 -19.31 0.0785
2025-02-14 2024-12-31 13F AFLAC COM 001055102 409,989 409,989 42,409 0.1035
2024-05-15 2024-03-31 13F AFLAC COM 001055102 0 -623,272 -100.00 0 -100.00
2024-02-15 2023-12-31 13F AFLAC COM 001055102 623,272 142,406 29.61 51 41.67 0.1547
2023-11-15 2023-09-30 13F/A-1 AFLAC COM 001055102 480,866 47,542 10.97 37 20.00 0.1402
2023-11-14 2023-09-30 13F AFLAC COM 001055102 480,866 47,542 37 0.1401
2023-08-14 2023-06-30 13F AFLAC COM 001055102 433,324 30,713 7.63 30 20.00 0.1200
2023-05-16 2023-03-31 13F AFLAC COM 001055102 402,611 98,427 32.36 26 19.05 0.1180
2023-02-09 2022-12-31 13F AFLAC COM 001055102 304,184 70,000 29.89 22 -99.84 0.1096
2022-11-15 2022-09-30 13F AFLAC COM 001055102 234,184 167,898 253.29 13,161 258.81 0.0781
2022-08-10 2022-06-30 13F AFLAC COM 001055102 66,286 8,127 13.97 3,668 -2.06 0.0225
2022-05-10 2022-03-31 13F AFLAC COM 001055102 58,159 -1,950 -3.24 3,745 6.70 0.0221
2022-02-04 2021-12-31 13F AFLAC COM 001055102 60,109 7,623 14.52 3,510 28.24 0.0217
2021-11-10 2021-09-30 13F AFLAC COM 001055102 52,486 3,236 6.57 2,737 3.56 0.0191
2021-08-10 2021-06-30 13F AFLAC COM 001055102 49,250 4,354 9.70 2,643 15.06 0.0203
2021-08-10 2021-03-31 13F/A-1 AFLAC COM 001055102 44,896 6,214 16.06 2,297 33.55 0.0209
2021-05-11 2021-03-31 13F AFLAC COM 001055102 42,196 3,514 2,159 0.0207
2021-02-12 2020-12-31 13F AFLAC COM 001055102 38,682 -22,575 -36.85 1,720 -22.77 0.0215
2020-12-10 2020-09-30 13F AFLAC COM 001055102 61,257 17,776 40.88 2,227 42.12 0.0335
2020-08-10 2020-06-30 13F AFLAC COM 001055102 43,481 -16,725 -27.78 1,567 -23.97 0.0285
2020-05-18 2020-03-31 13F AFLAC COM 001055102 60,206 2,974 5.20 2,061 -31.94 0.0454
2020-02-13 2019-12-31 13F AFLAC INC COM COM 001055102 57,232 1,484 2.66 3,028 3.84 0.0605
2019-11-12 2019-09-30 13F AFLAC INC COM COM 001055102 55,748 55,748 2,916 0.0686
2019-08-14 2019-06-30 13F AFLAC INC COM COM 001055102 0 -46,369 -100.00 0 -100.00
2019-04-23 2019-03-31 13F/A-1 AFLAC INC COM COM 001055102 46,369 46,369 2,318 0.0834
2019-04-12 2019-03-31 13F AFLAC INC COM COM 001055102 43,028 1,960 0.1044
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-14 2025-09-30 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F AFLAC COM Put 313,427 32,235 n/a n/a n/a
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.