Aflac holder Japan Post sells 12,900 shares

A major shareholder associated with Japan Post executed pre-planned open-market sales totaling 12,900 AFLAC shares through a trust structure.

Rhea-AI Filing Summary

AFLAC INC (AFL) reports that Japan Post Holdings Co., Ltd., a ten percent owner, indirectly sold a total of 12,900 shares of common stock on September 17, 2026, in open-market transactions under an affirmed Rule 10b5-1 trading plan, at weighted average prices around $116–$117 per share.

The shares were sold by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust, with Japan Post and related entities disclosing that they may be deemed to beneficially own the securities but expressly disclaiming beneficial ownership except to the extent of their pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 12,900 shares

Net Sell 2 txns

Insider Japan Post Holdings Co., Ltd.

Role 10% Owner

Sold 12,900 shs ($1.50M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	11,745	$116.54	$1.37M
Sale	Common Stock F3, F2	1,155	$116.97	$135K

Holdings After Transaction: Common Stock — 50,544,290 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 $115.875 to $116.875 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 $116.88 to $117.12 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 (total): 12,900 shares Shares sold (first block): 11,745 shares Price range (first block): $115.875–$116.875 per share +3 more

6 metrics

Shares sold (total) 12,900 shares Total AFLAC common shares sold on September 17, 2026 by entities associated with Japan Post

Shares sold (first block) 11,745 shares Non-derivative sale on September 17, 2026 at a weighted average price around $116.54 per share

Price range (first block) $115.875–$116.875 per share Range of prices for weighted-average sale of 11,745 shares

Shares sold (second block) 1,155 shares Non-derivative sale on September 17, 2026 at a weighted average price around $116.97 per share

Price range (second block) $116.88–$117.12 per share Range of prices for weighted-average sale of 1,155 shares

Net shares sold 12,900 shares Net share change across all reported transactions in this Form 4

Key Terms

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

4 terms

Rule 10b5-1 trading plan regulatory

"The filing affirms that the transactions were made 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.

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 regulatory

"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"

FAQ

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

What insider transaction did AFL (AFLAC INC) disclose in this Form 4?

AFLAC disclosed that Japan Post Holdings Co., Ltd., a ten percent owner, indirectly sold 12,900 shares of AFLAC common stock on September 17, 2026 in open-market transactions executed through a trust structure.

At what prices were the 12,900 AFL shares sold by the Japan Post-related entity?

The 12,900 AFL shares were sold at weighted average prices. One block of 11,745 shares was sold at about $116.54 per share within a $115.875–$116.875 range, and another 1,155 shares at about $116.97 within a $116.88–$117.12 range.

Were the AFL insider sales by Japan Post made under a Rule 10b5-1 trading plan?

Yes. The filing affirms that the transactions were made under a Rule 10b5-1 trading plan, meaning the trades were pre-arranged under a written plan, which can reduce the informational value of the timing of these sales.

How many AFLAC shares in total did the Japan Post-related entity sell on September 17, 2026?

The reporting structure associated with Japan Post sold a total of 12,900 shares of AFLAC common stock on September 17, 2026, consisting of 11,745 shares in one transaction and 1,155 shares in another.

Who actually holds the AFL shares sold in this Form 4 related to AFL?

The reported securities are held directly by J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust. Japan Post and related parties may be deemed to beneficially own these shares but expressly disclaim beneficial ownership except for their pecuniary interest.

Does the Form 4 state how many AFL shares Japan Post owns after these sales?

No. The transactions list no post-transaction share balance for the reporting person or related entities, so the filing does not state how many AFL shares remain held after these sales.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/21/2026 - 09:00 AM Accepted by SEC EDGAR 09/21/2026 - 08:59 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)
09/17/2026

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	09/17/2026		S		11,745	D	$116.54(1)	50,545,445	I	See footnote(2)
Common Stock	09/17/2026		S		1,155	D	$116.97(3)	50,544,290	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 $115.875 to $116.875 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 $116.88 to $117.12 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 Kenji Meguro	09/21/2026
	** 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)