Japan Post unit sells 16,300 AFLAC shares

Japan Post Holdings Co., Ltd., a ten percent owner of AFLAC Inc (AFL), reported indirect open-market sales of a total of 16,300 shares of AFLAC common stock on June 4, 2026.

Rhea-AI Filing Summary

Japan Post Holdings Co., Ltd., a ten percent owner of AFLAC Inc (AFL), reported indirect open-market sales of a total of 16,300 shares of AFLAC common stock on June 4, 2026. The sales were executed in two transactions at weighted average prices of $115.34 and $116.08 per share.

According to the footnotes, the shares are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust, and multiple parties, including Japan Post, may be deemed to beneficially own the securities, while each expressly disclaims beneficial ownership except to the extent of its pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 16,300 shares

Net Sell 2 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 16,300 shs ($1.88M)

Type	Security	Shares	Price	Value
Sale	Common Stock	11,940	$115.34	$1.38M
Sale	Common Stock	4,360	$116.08	$506K

Holdings After Transaction: Common Stock — 51,232,435 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 $114.815 to $115.81 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 $115.82 to $116.61 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: 16,300 shares Weighted avg sale price 1: $115.34 per share Weighted avg sale price 2: $116.08 per share +2 more

5 metrics

Shares sold 16,300 shares Total AFLAC common stock sold in open-market transactions on June 4, 2026

Weighted avg sale price 1 $115.34 per share Weighted average price for one sale of AFLAC common stock

Weighted avg sale price 2 $116.08 per share Weighted average price for the second sale of AFLAC common stock

Price range 1 $114.815–$115.81 per share Range of individual trade prices in one transaction

Price range 2 $115.82–$116.61 per share Range of individual trade prices in the other transaction

Key Terms

weighted average price, beneficially own, pecuniary interest, trustee, +1 more

5 terms

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 financial

"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 therein"

trustee financial

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

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.

ten percent owner financial

"Japan Post Holdings Co., Ltd. is reported as a ten percent owner of AFLAC INC"

FAQ

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

What insider transaction did Japan Post Holdings report in AFL (AFLAC Inc)?

Japan Post Holdings reported selling 16,300 shares of AFLAC common stock. The open-market sales occurred on June 4, 2026, through an entity acting as trustee of a trust structure, at weighted average prices around $115–$116 per share.

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

The reported AFLAC shares were sold at weighted average prices of $115.34 and $116.08 per share. Footnotes state the actual trades occurred in ranges from $114.815 to $116.61 per share across multiple individual transactions on June 4, 2026.

How many AFLAC (AFL) shares did Japan Post Holdings sell on June 4, 2026?

The filing shows total sales of 16,300 AFLAC common shares. These were reported in two indirect open-market transactions of 11,940 and 4,360 shares, executed through a trust structure where several parties may be deemed beneficial owners.

Were the AFL (AFLAC Inc) shares sold directly by Japan Post Holdings?

The shares were held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. Japan Post Holdings and other related parties may be deemed beneficial owners but expressly disclaim beneficial ownership except to the extent of their pecuniary interest.

What does the Form 4 say about beneficial ownership for AFL (AFLAC Inc) shares?

The Form 4 explains that General Incorporated, certain individuals, and Japan Post Holdings may be deemed to beneficially own the trust-held AFLAC shares. Each party expressly disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest.

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

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Accepted by SEC EDGAR 06/08/2026 - 10:17 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)
06/04/2026

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	06/04/2026		S		11,940	D	$115.34(1)	51,236,795	I	See footnote(2)
Common Stock	06/04/2026		S		4,360	D	$116.08(3)	51,232,435	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 $114.815 to $115.81 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 $115.82 to $116.61 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 Nobuyasu Kato	06/08/2026
	** 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)