Aflac Incorporated
MX ˙ BMV ˙ US0010551028
SecurityMX:AFL / Aflac Incorporated
InstitutionTwo Sigma Investments, Lp
ManagerJohn Overdeck, David Siegel
Latest Disclosed Ownership478,735 shares
Latest Disclosed Value $ 52,522,017
Two Sigma Investments, Lp ownership in AFL / Aflac Incorporated

On May 15, 2026 - Two Sigma Investments, Lp filed a 13F-HR form disclosing ownership of 478,735 shares of Aflac Incorporated (MX:AFL) valued at $52,522,017 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 627,183 shares of Aflac Incorporated. This represents a change in shares of -23.67% during the quarter.

Two Sigma Investments, Lp has a history of taking positions in derivatives of the underlying security (AFL) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 2,000 of underlying shares valued at $219,420 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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 478,735 -148,448 -23.67 52,522 -24.06 0.0424
2026-02-17 2025-12-31 13F AFLAC COM 001055102 627,183 -26,670 -4.08 69,159 -5.31 0.0975
2025-11-14 2025-09-30 13F AFLAC COM 001055102 653,853 523,845 402.93 73,035 432.71 0.1087
2025-08-14 2025-06-30 13F AFLAC COM 001055102 130,008 130,008 13,711 0.0243
2023-05-15 2023-03-31 13F AFLAC COM 001055102 0 -13,000 -100.00 0 -100.00
2023-02-14 2022-12-31 13F AFLAC COM 001055102 13,000 13,000 935 0.0029
2021-08-16 2021-06-30 13F AFLAC COM 001055102 0 -46,394 -100.00 0 -100.00
2021-05-17 2021-03-31 13F AFLAC COM 001055102 46,394 -819,226 -94.64 2,374 -93.83 0.0062
2021-02-16 2020-12-31 13F AFLAC COM 001055102 865,620 475,617 121.95 38,494 171.52 0.1104
2020-11-16 2020-09-30 13F AFLAC COM 001055102 390,003 -34,803 -8.19 14,177 -7.38 0.0503
2020-08-14 2020-06-30 13F AFLAC COM 001055102 424,806 424,806 15,306 0.0758
2019-08-14 2019-06-30 13F AFLAC COM 001055102 0 -88,965 -100.00 0 -100.00
2019-05-15 2019-03-31 13F AFLAC COM 001055102 88,965 88,965 4,448 0.0144
2019-02-14 2018-12-31 13F AFLAC COM 001055102 0 -1,081,282 -100.00 0 -100.00
2018-11-14 2018-09-30 13F AFLAC COM 001055102 1,081,282 1,030,805 2,042.13 50,896 2,243.28 0.1387
2018-08-14 2018-06-30 13F AFLAC COM 001055102 50,477 41,202 444.23 2,172 434.98 0.0065
2018-05-15 2018-03-31 13F AFLAC COM 001055102 9,275 9,275 406 0.0014
2017-11-14 2017-09-30 13F AFLAC COM 001055102 0 -16,065 -100.00 0 -100.00
2017-08-14 2017-06-30 13F AFLAC COM 001055102 16,065 -276,778 -94.51 1,248 -94.12 0.0045
2017-05-15 2017-03-31 13F AFLAC COM 001055102 292,843 285,537 3,908.25 21,208 4,074.80 0.0714
2017-02-14 2016-12-31 13F AFLAC COM 001055102 7,306 3,535 93.74 508 87.45 0.0019
2016-11-14 2016-09-30 13F AFLAC COM 001055102 3,771 -6,869 -64.56 271 -64.71 0.0010
2016-08-15 2016-06-30 13F AFLAC COM 001055102 10,640 -453,683 -97.71 768 -97.38 0.0033
2016-05-16 2016-03-31 13F AFLAC COM 001055102 464,323 354,443 322.57 29,317 345.41 0.1396
2016-02-16 2015-12-31 13F AFLAC COM 001055102 109,880 -46,720 -29.83 6,582 -27.69 0.0316
2015-11-16 2015-09-30 13F AFLAC COM 001055102 156,600 -591,447 -79.07 9,103 -80.44 0.0466
2016-02-09 2015-06-30 13F/A-1 AFLAC COM 001055102 748,047 489,563 189.40 46,529 181.21 0.2259
2015-08-14 2015-06-30 13F AFLAC COM 001055102 748,047 46,528
2016-02-09 2015-03-31 13F/A-1 AFLAC COM 001055102 258,484 -685,517 -72.62 16,546 -71.31 0.0815
2015-05-15 2015-03-31 13F AFLAC COM 001055102 258,484 16,546
2016-02-09 2014-12-31 13F/A-1 AFLAC COM 001055102 944,001 -329,835 -25.89 57,669 -22.28 0.3316
2015-02-17 2014-12-31 13F AFLAC COM 001055102 944,001 57,669
2016-02-09 2014-09-30 13F/A-1 AFLAC COM 001055102 1,273,836 393,204 44.65 74,201 35.36 0.3488
2014-11-14 2014-09-30 13F AFLAC COM 001055102 1,273,836 74,201
2016-02-09 2014-06-30 13F/A-2 AFLAC COM 001055102 880,632 83,432 10.47 54,819 9.08 5.4821
2014-05-15 2014-03-31 13F AFLAC COM 001055102 797,200 797,200 -14.76 50,255 -13.31 0.2692
2014-02-14 2013-12-31 13F AFLAC COM 001055102 0 -935,205 -100.00 0 -100.00
2013-11-14 2013-09-30 13F AFLAC COM 001055102 935,205 503,113 116.44 57,973 130.85 0.3695
2013-08-14 2013-06-30 13F AFLAC COM 001055102 432,092 432,092 25,113 0.1755
Disclosed Call 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
(%)
2022-05-16 2022-03-31 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F AFLAC COM Call 15,500 905 n/a n/a n/a
2021-05-17 2021-03-31 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F AFLAC COM Call 13,000 35.42 578 65.62 n/a n/a n/a
2020-11-16 2020-09-30 13F AFLAC COM Call 9,600 349 n/a n/a n/a
2020-05-15 2020-03-31 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F AFLAC COM Call 6,300 -90.08 333 -89.98 n/a n/a n/a
2019-11-14 2019-09-30 13F AFLAC COM Call 63,500 340.97 3,322 321.04 n/a n/a n/a
2019-08-14 2019-06-30 13F AFLAC COM Call 14,400 -2.04 789 7.35 n/a n/a n/a
2019-05-15 2019-03-31 13F AFLAC COM Call 14,700 735 n/a n/a n/a
2019-02-14 2018-12-31 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F AFLAC COM Call 45,000 -3.64 2,118 5.43 n/a n/a n/a
2018-08-14 2018-06-30 13F AFLAC COM Call 46,700 79.62 2,009 76.54 n/a n/a n/a
2018-05-15 2018-03-31 13F AFLAC COM Call 26,000 1,138 n/a n/a n/a
2017-05-15 2017-03-31 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F AFLAC COM Call 25,800 63.29 1,796 58.10 n/a n/a n/a
2016-11-14 2016-09-30 13F AFLAC COM Call 15,800 9.72 1,136 9.34 n/a n/a n/a
2016-08-15 2016-06-30 13F AFLAC COM Call 14,400 30.91 1,039 49.50 n/a n/a n/a
2016-05-16 2016-03-31 13F AFLAC COM Call 11,000 695 n/a n/a n/a
2016-02-16 2015-12-31 13F AFLAC COM Call 0 0 n/a n/a n/a
2015-11-16 2015-09-30 13F AFLAC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-09 2015-06-30 13F/A AFLAC COM Call 27,000 80.00 1,679 74.90 n/a n/a n/a
2015-08-14 2015-06-30 13F AFLAC COM Call 27,000 1,679 n/a n/a n/a
2016-02-09 2015-03-31 13F/A AFLAC COM Call 15,000 960 n/a n/a n/a
2015-05-15 2015-03-31 13F AFLAC COM Call 15,000 960 n/a n/a n/a
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
(%)
2026-05-15 2026-03-31 13F AFLAC COM Put 2,000 0.00 219 -0.45 n/a n/a n/a
2026-02-17 2025-12-31 13F AFLAC COM Put 2,000 221 n/a n/a n/a
2022-05-16 2022-03-31 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F AFLAC COM Put 17,200 1,004 n/a n/a n/a
2021-05-17 2021-03-31 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F AFLAC COM Put 13,300 20.91 591 47.75 n/a n/a n/a
2020-11-16 2020-09-30 13F AFLAC COM Put 11,000 400 n/a n/a n/a
2020-05-15 2020-03-31 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F AFLAC COM Put 6,000 -87.10 317 -86.97 n/a n/a n/a
2019-11-14 2019-09-30 13F AFLAC COM Put 46,500 176.79 2,433 164.17 n/a n/a n/a
2019-08-14 2019-06-30 13F AFLAC COM Put 16,800 189.66 921 217.59 n/a n/a n/a
2019-05-15 2019-03-31 13F AFLAC COM Put 5,800 290 n/a n/a n/a
2019-02-14 2018-12-31 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F AFLAC COM Put 32,300 -54.44 1,520 -50.16 n/a n/a n/a
2018-08-14 2018-06-30 13F AFLAC COM Put 70,900 201.70 3,050 196.69 n/a n/a n/a
2018-05-15 2018-03-31 13F AFLAC COM Put 23,500 1,028 n/a n/a n/a
2017-05-15 2017-03-31 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F AFLAC COM Put 57,400 185.57 3,995 176.47 n/a n/a n/a
2016-11-14 2016-09-30 13F AFLAC COM Put 20,100 -19.60 1,445 -19.90 n/a n/a n/a
2016-08-15 2016-06-30 13F AFLAC COM Put 25,000 -40.48 1,804 -31.98 n/a n/a n/a
2016-05-16 2016-03-31 13F AFLAC COM Put 42,000 2,652 n/a n/a n/a
2016-02-16 2015-12-31 13F AFLAC COM Put 0 0 n/a n/a n/a
2015-11-16 2015-09-30 13F AFLAC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-09 2015-06-30 13F/A AFLAC COM Put 20,900 4.50 1,300 1.56 n/a n/a n/a
2015-08-14 2015-06-30 13F AFLAC COM Put 20,900 1,300 n/a n/a n/a
2016-02-09 2015-03-31 13F/A AFLAC COM Put 20,000 1,280 n/a n/a n/a
2015-05-15 2015-03-31 13F AFLAC COM Put 20,000 1,280 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.