Japan Post affiliate sells 63K AFLAC shares

Japan Post Holdings Co., Ltd., as an indirect holder, reported open-market sales of 63,000 shares of AFLAC Inc. common stock.

Rhea-AI Filing Summary

Japan Post Holdings Co., Ltd., as an indirect holder, reported open-market sales of 63,000 shares of AFLAC Inc. common stock. The shares were sold on June 5, 2026 in three transactions at weighted average prices around $116.82, $117.71, and $118.30 per share.

The securities are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust, an entity associated with Japan Post. Following these sales, the filing shows indirect ownership of about 51.2 million AFLAC shares.

Insider Trade Summary 10b5-1

Net Seller: 63,000 shares

Net Sell 3 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 63,000 shs ($7.44M)

Type	Security	Shares	Price	Value
Sale	Common Stock	476	$116.82	$56K
Sale	Common Stock	18,015	$117.71	$2.12M
Sale	Common Stock	44,509	$118.30	$5.27M

Holdings After Transaction: Common Stock — 51,169,435 shares (Indirect, See footnote)

Footnotes (4)

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 $116.14 to $117.135 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 $117.145 to $118.145 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.
4. F4. The price reported represents the weighted average price of shares of Common Stock of the Issuer sold in multiple transactions at prices ranging from $118.15 to $118.82 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: 63,000 shares First trade size: 44,509 shares Second trade size: 18,015 shares +5 more

8 metrics

Shares sold 63,000 shares Total AFLAC common stock sold across three open-market trades on June 5, 2026

First trade size 44,509 shares Open-market sale of common stock at weighted average around $118.30 per share

Second trade size 18,015 shares Open-market sale of common stock at weighted average $117.71 per share

Third trade size 476 shares Open-market sale of common stock at weighted average $116.82 per share

Holding after trade (example) 51,169,435 shares Indirectly owned AFLAC common stock reported following one of the June 5, 2026 sales

Holding after trade (second example) 51,231,959 shares Indirectly owned AFLAC common stock reported following another June 5, 2026 sale

Price range F1 $116.14–$117.135 per share Weighted average price range for one group of AFLAC shares sold

Price range F4 $118.15–$118.82 per share Weighted average price range for another group of AFLAC shares sold

Key Terms

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

"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.

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.

pecuniary interest financial

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

indirect ownership financial

"The reported securities are held directly by J&A Alliance Holdings Corporation... Japan Post may be deemed to beneficially own..."

FAQ

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

What did Japan Post-related entities report in this AFL (AFLAC) Form 4 filing?

Entities associated with Japan Post reported selling 63,000 AFLAC common shares. The sales occurred in three open-market transactions on June 5, 2026, with prices in ranges around $116–$119 per share, and the position remains over 51 million shares indirectly held.

At what prices were the AFLAC (AFL) shares sold in this insider transaction?

The AFLAC shares were sold at weighted average prices between about $116 and $119. Footnotes state ranges of $116.14–$117.135, $117.145–$118.145, and $118.15–$118.82 per share, with detailed price-by-trade data available on request to the issuer or SEC staff.

How many AFLAC (AFL) shares does the Japan Post-related entity hold after the sale?

The filing shows indirect ownership of approximately 51.2 million AFLAC shares after the sale. One transaction line reports 51,169,435 shares and another 51,231,959 shares following the respective trades, indicating a very large remaining position despite the 63,000-share disposition.

Who actually holds the AFLAC (AFL) shares reported in this Form 4?

The shares are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. General Incorporated Association J&A Alliance, Kenji Sano, Tetsuya Numaguchi, and Japan Post may be deemed beneficial owners but expressly disclaim ownership beyond their pecuniary interests.

Were the AFLAC (AFL) sales by Japan Post entities open-market transactions?

Yes, the Form 4 characterizes the transactions as open-market sales. The transaction code is “S” for each entry, and the description specifies sales in the open market or in private transactions, with weighted average prices and detailed ranges provided in the footnotes.

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

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Accepted by SEC EDGAR 06/09/2026 - 11:01 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)
06/05/2026

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	06/05/2026		S		476	D	$116.82(1)	51,231,959	I	See footnote(2)
Common Stock	06/05/2026		S		18,015	D	$117.71(3)	51,213,944	I	See footnote(2)
Common Stock	06/05/2026		S		44,509	D	$118.3(4)	51,169,435	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 $116.14 to $117.135 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 $117.145 to $118.145 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.

4. The price reported represents the weighted average price of shares of Common Stock of the Issuer sold in multiple transactions at prices ranging from $118.15 to $118.82 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	06/09/2026
	** 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)