Japan Post Holdings Sells 48,500 AFLAC Shares

AFLAC Inc’s ten percent owner Japan Post Holdings Co., Ltd. reported two indirect sales of 48,500 shares of AFLAC common stock on June 11, 2026, at weighted-average prices of $116.62 and $117.69, executed under a Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

AFLAC Inc’s ten percent owner Japan Post Holdings Co., Ltd. reported two indirect sales of 48,500 shares of AFLAC common stock on June 11, 2026, at weighted-average prices of $116.62 and $117.69, executed under a Rule 10b5-1 trading plan. Following these transactions, 51,067,735 shares are held indirectly through J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust, where related entities may be deemed beneficial owners but expressly disclaim ownership beyond their pecuniary interests.

Insider Trade Summary 10b5-1

Net Seller: 48,500 shares

Net Sell 2 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 48,500 shs ($5.68M)

Type	Security	Shares	Price	Value
Sale	Common Stock	22,268	$116.62	$2.60M
Sale	Common Stock	26,232	$117.69	$3.09M

Holdings After Transaction: Common Stock — 51,067,735 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 $116.31 to $117.31 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 $117.32 to $118.17 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, transaction 1: 22,268 shares Shares sold, transaction 2: 26,232 shares Total shares sold: 48,500 shares +3 more

6 metrics

Shares sold, transaction 1 22,268 shares Non-derivative indirect sale of AFLAC common stock on June 11, 2026

Shares sold, transaction 2 26,232 shares Second non-derivative indirect sale of AFLAC common stock on June 11, 2026

Total shares sold 48,500 shares Aggregate of two sale transactions reported by Japan Post Holdings

Price per share, transaction 1 $116.62 per share Weighted-average sale price for the first AFLAC common stock transaction

Price per share, transaction 2 $117.69 per share Weighted-average sale price for the second AFLAC common stock transaction

Post-transaction indirect holdings 51,067,735 shares AFLAC common stock held indirectly via J&A Alliance Trust after June 11, 2026 trades

Key Terms

Rule 10b5-1 trading plan, beneficially own, weighted average price, ten percent owner, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"Transactions were executed under 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.

beneficially own regulatory

"Each party 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.

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.

ten percent owner regulatory

"Japan Post Holdings Co., Ltd. is identified as a ten percent owner."

J&A Alliance Trust financial

"The reported securities are held by J&A Alliance Holdings as trustee of the J&A Alliance Trust."

FAQ

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

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

Japan Post Holdings reported two indirect non-derivative sales totaling 48,500 AFLAC common shares on June 11, 2026. These were dispositions of common stock held through a trust structure associated with J&A Alliance Holdings Corporation.

At what prices were AFL (AFLAC Inc) shares sold by Japan Post Holdings?

The reported sales used weighted-average prices of $116.62 and $117.69 per share. Footnotes state each price reflects multiple trades, with transaction ranges spanning approximately $116.31 to $118.17 for AFLAC common stock.

How many AFL (AFLAC Inc) shares does Japan Post Holdings hold after these sales?

After the June 11, 2026 transactions, entities associated with Japan Post Holdings hold 51,067,735 AFLAC common shares indirectly. The shares are held by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust.

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

Yes. The filing affirms that the transactions were made under a Rule 10b5-1 trading plan. Such pre-arranged plans allow insiders to sell shares according to set instructions, reducing the significance of trade timing as an information signal.

How are the reported AFL (AFLAC Inc) shares held and who may be deemed owners?

The securities are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. Several related entities and individuals, including Japan Post Holdings, may be deemed to beneficially own the shares but disclaim ownership beyond their pecuniary interests.

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

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Accepted by SEC EDGAR 06/15/2026 - 09:49 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)
06/11/2026

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	06/11/2026		S		22,268	D	$116.62(1)	51,093,967	I	See footnote(2)
Common Stock	06/11/2026		S		26,232	D	$117.69(3)	51,067,735	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 $116.31 to $117.31 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 $117.32 to $118.17 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	06/15/2026
	** 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)