Aflac (NYSE: AFL) holder Japan Post sells 13,900 shares under 10b5-1 plan

Rhea-AI Filing Summary

AFLAC Inc (AFL) had an insider-related filing in which Japan Post Holdings Co., Ltd., as a ten percent owner, reported indirect sales totaling 13,900 shares of common stock on 2026-08-17. The shares were sold through J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust under a Rule 10b5-1 trading plan, at weighted average prices in ranges between $120.93–$121.92 and $121.94–$122.32 per share. Related entities and individuals may be deemed beneficial owners but expressly disclaim beneficial ownership except to the extent of their pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 13,900 shares

Net Sell 2 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 13,900 shs ($1.69M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	12,690	$121.26	$1.54M
Sale	Common Stock F3, F2	1,210	$122.11	$148K

Holdings After Transaction: Common Stock — 50,844,690 shares (Indirect, See footnote)

Footnotes (3)

1. F1. The price reported represents the weighted average price of shares of Common Stock of Aflac Inc. (the "Issuer") sold in multiple transactions at prices ranging from $120.93 to $121.92 per share. The reporting person will provide to the Issuer, or the Securities and Exchange Commission staff, upon request, information regarding the number of shares sold at each price within the range.
2. F2. The reported securities are held directly by J&A Alliance Holdings Corporation ("J&A Holdings"), in its capacity as the trustee of the J&A Alliance Trust (the "Trust"). General Incorporated Association J&A Alliance ("General Incorporated"), Kenji Sano and Tetsuya Numaguchi each may be deemed to beneficially own the securities held by J&A Holdings (in its capacity as trustee of the Trust) because (i) General Incorporated owns J&A Holdings and (ii) Kenji Sano and Tetsuya Numaguchi each own 50% of the equity interests in General Incorporated. Japan Post Holdings Co., Ltd. ("Japan Post") may be deemed to beneficially own the shares of common stock owned directly by J&A Holdings, in its capacity as the trustee of the Trust, due to its role as the sole settlor and beneficiary of the Trust. Each of General Incorporated, Kenji Sano, Tetsuya Numaguchi and Japan Post expressly disclaim beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.
3. F3. The price reported represents the weighted average price of shares of Common Stock of the Issuer sold in multiple transactions at prices ranging from $121.94 to $122.32 per share. The reporting person will provide to the Issuer, or the Securities and Exchange Commission staff, upon request, information regarding the number of shares sold at each price within the range.

Key Figures

Shares sold (first transaction): 12,690 shares Shares sold (second transaction): 1,210 shares Total shares sold: 13,900 shares +2 more

5 metrics

Shares sold (first transaction) 12,690 shares Indirect sale of AFLAC common stock on 2026-08-17 at weighted average price in $120.93–$121.92 range

Shares sold (second transaction) 1,210 shares Indirect sale of AFLAC common stock on 2026-08-17 at weighted average price in $121.94–$122.32 range

Total shares sold 13,900 shares Sum of two reported indirect sales by Japan Post-related trust entities on 2026-08-17

Weighted price range (first block) $120.93–$121.92 per share Price range for first weighted average sale of AFLAC common stock

Weighted price range (second block) $121.94–$122.32 per share Price range for second weighted average sale of AFLAC common stock

Key Terms

Rule 10b5-1, weighted average price, beneficially own, pecuniary interest

4 terms

Rule 10b5-1 regulatory

"The filing indicates the transactions were executed under a Rule 10b5-1 trading plan"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

weighted average price financial

"The price reported represents the weighted average price of shares of Common Stock"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficially own regulatory

"each may be deemed to beneficially own the securities held by J&A Holdings"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

pecuniary interest financial

"expressly disclaim beneficial ownership of the reported securities except to the extent of its pecuniary interest"

FAQ

What insider transactions were reported for AFL (AFLAC Inc) by Japan Post Holdings?

Japan Post Holdings Co., Ltd. reported two indirect open-market sales of AFLAC common stock totaling 13,900 shares on 2026-08-17. The transactions were executed through J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust.

At what prices were the AFL (AFLAC Inc) shares sold in this Form 4 filing?

The reported sales used weighted average prices. One block was sold between $120.93 and $121.92 per share, and the other between $121.94 and $122.32 per share. Exact per-trade prices are available from the reporting person on request.

How many AFL (AFLAC Inc) shares did Japan Post Holdings report selling?

Japan Post Holdings reported indirect sales totaling 13,900 shares of AFLAC common stock. This consisted of 12,690 shares in one transaction and 1,210 shares in a second transaction, both dated 2026-08-17.

Were the AFL (AFLAC Inc) insider sales made under a Rule 10b5-1 trading plan?

Yes. The filing indicates the transactions were executed under a Rule 10b5-1 trading plan. Such plans allow pre-arranged trading according to preset instructions, which can reduce the informational significance of the exact timing of the trades.

Who is the direct holder of the AFL (AFLAC Inc) shares in this Form 4?

The reported securities are held directly by J&A Alliance Holdings Corporation, acting as trustee of the J&A Alliance Trust. Various related entities and individuals may be deemed beneficial owners, but each disclaims beneficial ownership except for their pecuniary interest.

Does Japan Post Holdings fully acknowledge beneficial ownership of the reported AFL (AFLAC Inc) shares?

No. Japan Post Holdings and other related parties expressly disclaim beneficial ownership of the reported securities, except to the extent of their pecuniary interest. The filing explains this structure through the J&A Alliance Trust and its trustee.

How many insider sell transactions for AFL (AFLAC Inc) are included in this Form 4?

The Form 4 discloses two non-derivative transactions, both coded as S (sale). Together these open-market or private sales account for a net disposition of 13,900 AFLAC common shares on 2026-08-17.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/19/2026 - 09:00 AM Accepted by SEC EDGAR 08/19/2026 - 09:00 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Japan Post Holdings Co., Ltd.

(Last) (First) (Middle)

2-3-1, OTEMACHI, CHIYODA-KU

(Street)

TOKYO 100-8791

(City) (State) (Zip)

JAPAN

(Country)

2. Issuer Name and Ticker or Trading Symbol
AFLAC INC [ AFL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/17/2026		S		12,690	D	$121.26(1)	50,845,900	I	See footnote(2)
Common Stock	08/17/2026		S		1,210	D	$122.11(3)	50,844,690	I	See footnote(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported represents the weighted average price of shares of Common Stock of Aflac Inc. (the "Issuer") sold in multiple transactions at prices ranging from $120.93 to $121.92 per share. The reporting person will provide to the Issuer, or the Securities and Exchange Commission staff, upon request, information regarding the number of shares sold at each price within the range.

2. The reported securities are held directly by J&A Alliance Holdings Corporation ("J&A Holdings"), in its capacity as the trustee of the J&A Alliance Trust (the "Trust"). General Incorporated Association J&A Alliance ("General Incorporated"), Kenji Sano and Tetsuya Numaguchi each may be deemed to beneficially own the securities held by J&A Holdings (in its capacity as trustee of the Trust) because (i) General Incorporated owns J&A Holdings and (ii) Kenji Sano and Tetsuya Numaguchi each own 50% of the equity interests in General Incorporated. Japan Post Holdings Co., Ltd. ("Japan Post") may be deemed to beneficially own the shares of common stock owned directly by J&A Holdings, in its capacity as the trustee of the Trust, due to its role as the sole settlor and beneficiary of the Trust. Each of General Incorporated, Kenji Sano, Tetsuya Numaguchi and Japan Post expressly disclaim beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.

3. The price reported represents the weighted average price of shares of Common Stock of the Issuer sold in multiple transactions at prices ranging from $121.94 to $122.32 per share. The reporting person will provide to the Issuer, or the Securities and Exchange Commission staff, upon request, information regarding the number of shares sold at each price within the range.

	/s/ Yuki Takemura, Senior General Manager, as attorney-in-fact for Kenji Meguro	08/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)