Entity tied to Japan Post sells 3,300 Aflac shares

Japan Post Holdings Co., Ltd., as a reporting person for Aflac Inc., reported that shares of Aflac common stock held through the J&A Alliance Trust were sold in the open market.

Rhea-AI Filing Summary

Japan Post Holdings Co., Ltd., as a reporting person for Aflac Inc., reported that shares of Aflac common stock held through the J&A Alliance Trust were sold in the open market. On June 18, 2026, entities associated with Japan Post sold a total of 3,300 shares at weighted average prices in the $115.47–$117.25 range. After these sales, indirect holdings reported in the filing were about 50,926,335 shares, indicating the transactions were small relative to the overall position.

Insider Trade Summary 10b5-1

Net Seller: 3,300 shares

Net Sell 2 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 3,300 shs ($386K)

Type	Security	Shares	Price	Value
Sale	Common Stock	600	$116.06	$70K
Sale	Common Stock	2,700	$117.11	$316K

Holdings After Transaction: Common Stock — 50,926,335 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 $115.47 to $116.46 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 $116.515 to $117.25 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.

Key Figures

Total shares sold: 3,300 shares First block sold: 2,700 shares at $117.11/share Second block sold: 600 shares at $116.06/share +3 more

6 metrics

Total shares sold 3,300 shares Open-market sales of Aflac common stock on June 18, 2026

First block sold 2,700 shares at $117.11/share Non-derivative sale of Aflac common stock

Second block sold 600 shares at $116.06/share Non-derivative sale of Aflac common stock

Price range block 1 $115.47–$116.46 Weighted average sale price range for one set of trades

Price range block 2 $116.515–$117.25 Weighted average sale price range for another set of trades

Indirect holdings after trades 50,926,335 shares Aflac common stock indirectly held following transactions

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 of Aflac Inc."

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

"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 therein"

trustee financial

"held directly by J&A Alliance Holdings Corporation ("J&A Holdings"), 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.

settlor and beneficiary financial

"Japan Post may be deemed to beneficially own the shares ... due to its role as the sole settlor and beneficiary of the Trust"

FAQ

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

What insider transaction did AFL (Aflac Inc.) report in this Form 4?

The filing reports open-market sales totaling 3,300 shares of Aflac common stock. These shares were held indirectly through a trust structure associated with Japan Post Holdings Co., Ltd., rather than directly by the company or its executives.

Who effectively sold Aflac (AFL) shares according to this Form 4?

The shares were sold by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. Japan Post Holdings is the sole settlor and beneficiary and may be deemed to beneficially own these shares, while several entities disclaim beneficial ownership beyond pecuniary interest.

How many Aflac (AFL) shares were sold and at what prices?

Entities associated with Japan Post sold 3,300 Aflac shares on June 18, 2026. One block of 2,700 shares priced around $117.11 and another 600 shares around $116.06, with weighted average price ranges disclosed in the footnotes.

What is the remaining Aflac (AFL) stake after these insider sales?

After the reported transactions, the filing shows indirect holdings of about 50,926,335 Aflac shares. This indicates the 3,300-share sale was small relative to the overall position associated with the trust structure linked to Japan Post Holdings.

How were the Aflac (AFL) sale prices described in the Form 4?

The filing reports weighted average prices for shares sold in multiple trades. One set ranged from $115.47 to $116.46 per share and another from $116.515 to $117.25, with detailed trade breakdowns available upon request to the issuer or SEC staff.

Does Japan Post Holdings directly hold the Aflac (AFL) shares sold?

The reported shares are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. Japan Post Holdings may be deemed to beneficially own them due to its role as settlor and beneficiary, but all related parties disclaim beneficial ownership beyond pecuniary interest.

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

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Accepted by SEC EDGAR 06/23/2026 - 09:58 AM EDT 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)
06/18/2026

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	06/18/2026		S		600	D	$116.06(1)	50,929,035	I	See footnote(2)
Common Stock	06/18/2026		S		2,700	D	$117.11(3)	50,926,335	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 $115.47 to $116.46 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 $116.515 to $117.25 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.

	/s/ Yuki Takemura, Senior General Manager, as attorney-in-fact for Nobuyasu Kato	06/23/2026
	** 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)