Aflac trust sells 13,600 shares under 10b5-1 plan

Rhea-AI Filing Summary

AFLAC INC (AFL) had an indirect shareholder associated with Japan Post Holdings Co., Ltd. report the sale of 13,600 shares of Common Stock on September 9, 2026 in a transaction characterized as a sale in the open market or a private transaction under a Rule 10b5-1 trading plan.

The shares are held directly by J&A Alliance Holdings Corporation, as trustee of the J&A Alliance Trust. After this transaction, 50,625,490 shares of AFLAC common stock were reported as indirectly held. The sale price represents a weighted average between $114.56 and $115.25 per share. Several related parties, including Japan Post Holdings, may be deemed to beneficially own these securities through their interests in the trust structure, but each expressly disclaims beneficial ownership except to the extent of its pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 13,600 shares

Net Sell 1 txn

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 13,600 shs ($1.56M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	13,600	$114.82	$1.56M

Holdings After Transaction: Common Stock — 50,625,490 shares (Indirect, See footnote)

Footnotes (2)

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 $114.56 to $115.25 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.

Key Figures

Shares sold: 13,600 shares Weighted average sale price range: $114.56–$115.25 per share Shares held after transaction: 50,625,490 shares +2 more

5 metrics

Shares sold 13,600 shares Common Stock sale on September 9, 2026

Weighted average sale price range $114.56–$115.25 per share Prices for multiple sale transactions on September 9, 2026

Shares held after transaction 50,625,490 shares Indirectly held common stock following the reported sale

Single reported sale transaction 1 transaction One non-derivative sale of common stock reported in this Form 4

Rule 10b5-1 status Plan transaction affirmed Form 4 indicates the transaction was under a Rule 10b5-1 trading plan

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficially own, pecuniary interest, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"transaction was made pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

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

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"

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"

trustee regulatory

"held directly by J&A Alliance Holdings Corporation in its capacity as the trustee"

A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction in AFL (AFLAC INC) was reported in this Form 4?

The filing reports a sale of 13,600 shares of AFLAC INC common stock on September 9, 2026, characterized as a sale in the open market or a private transaction and reported as an indirect transaction through a trust structure.

At what price were the AFL shares sold in this Form 4 transaction?

The reported price is a weighted average. Shares of AFLAC INC common stock were sold in multiple transactions at prices ranging from $114.56 to $115.25 per share, with 13,600 shares sold in total.

How many AFL shares does the reporting structure hold after this transaction?

After the reported sale, the trust structure associated with the reporting person holds 50,625,490 shares of AFLAC INC common stock indirectly. This figure is reported as the total number of shares following the transaction.

Who actually holds the AFL shares reported in Japan Post’s Form 4?

The securities are held directly by J&A Alliance Holdings Corporation, in its capacity as trustee of the J&A Alliance Trust. Various related parties, including Japan Post Holdings Co., Ltd., may be deemed to beneficially own these shares through their interests in the trust.

Was the AFL insider sale made under a Rule 10b5-1 trading plan?

Yes. The Form 4 indicates that the reported transaction was made pursuant to a Rule 10b5-1 trading plan, meaning the trades were executed according to pre-established instructions rather than ad hoc decisions.

Does Japan Post fully own the AFL shares reported in this filing?

Japan Post Holdings Co., Ltd. may be deemed to beneficially own the shares held by the trust because it is the sole settlor and beneficiary, but it and other related parties expressly disclaim beneficial ownership except to the extent of their pecuniary interests.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/11/2026 - 04:15 PM Accepted by SEC EDGAR 09/11/2026 - 04:15 PM 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)
09/09/2026

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	09/09/2026		S		13,600	D	$114.82(1)	50,625,490	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 $114.56 to $115.25 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.

	/s/ Yuki Takemura, Senior General Manager, as attorney-in-fact for Kenji Meguro	09/11/2026
	** 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)