Aflac (AFL) major holder Japan Post sells 12,900 shares

Rhea-AI Filing Summary

AFLAC INC (AFL) had insider activity reported by Japan Post Holdings Co., Ltd., a ten percent owner. An entity associated with Japan Post sold a total of 12,900 shares of AFLAC common stock on August 21, 2026 in open-market or private transactions at weighted average prices in the $116–$117 range, under a Rule 10b5-1 trading plan. The shares were held indirectly through J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust, and several related parties, including Japan Post, disclaim 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	12,820	$116.28	$1.49M
Sale	Common Stock F3, F2	80	$117.07	$9K

Holdings After Transaction: Common Stock — 50,791,790 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 $116.00 to $116.93 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 $117.03 to $117.11 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 of Common Stock First weighted average price range: $116.00–$116.93 per share Second weighted average price range: $117.03–$117.11 per share +3 more

6 metrics

Shares sold (total) 12,900 shares of Common Stock Total non-derivative sales reported on August 21, 2026

First weighted average price range $116.00–$116.93 per share Price range for 12,820-share sale of Common Stock

Second weighted average price range $117.03–$117.11 per share Price range for 80-share sale of Common Stock

Individual transaction share count 1 12,820 shares First sale of Common Stock on August 21, 2026

Individual transaction share count 2 80 shares Second sale of Common Stock on August 21, 2026

Net buy/sell direction Net sell of 12,900 shares Form 4 transaction summary for the reporting date

Key Terms

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

5 terms

Rule 10b5-1 trading plan regulatory

"transactions were effected 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"

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"

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

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

ten percent owner regulatory

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

FAQ

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

A ten percent owner associated with Japan Post reported selling a total of 12,900 shares of AFLAC common stock on August 21, 2026 in open-market or private transactions at weighted average prices between about $116 and $117 per share.

Who is the reporting person in AFLAC (AFL)'s latest Form 4?

The reporting person is Japan Post Holdings Co., Ltd., identified as a ten percent owner of AFLAC INC. The reported securities are held indirectly through J&A Alliance Holdings Corporation as trustee of the J&A Alliance Trust.

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

Two sale transactions totaled 12,900 shares. One sale of 12,820 shares used a weighted average price for trades between $116.00 and $116.93 per share, and another sale of 80 shares used a weighted average price for trades between $117.03 and $117.11 per share.

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

Yes. The filing indicates that the transactions were effected under a Rule 10b5-1 trading plan, meaning the trades occurred pursuant to a pre-arranged written trading agreement.

Does Japan Post fully own the AFLAC (AFL) shares reported in this Form 4?

The filing states that the shares are held by J&A Alliance Holdings Corporation as trustee of a trust, and that General Incorporated Association J&A Alliance, certain individuals, and Japan Post each disclaim beneficial ownership except to the extent of their pecuniary interest.

Are the reported AFLAC (AFL) shares held directly or indirectly by the reporting person?

The shares are reported as held indirectly. They are owned directly by J&A Alliance Holdings Corporation in its capacity as trustee of the J&A Alliance Trust, with Japan Post and other parties potentially deemed beneficial owners subject to the stated disclaimers.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/25/2026 - 10:32 AM Accepted by SEC EDGAR 08/25/2026 - 10:31 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)
08/21/2026

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	08/21/2026		S		12,820	D	$116.28(1)	50,791,870	I	See footnote(2)
Common Stock	08/21/2026		S		80	D	$117.07(3)	50,791,790	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 $116.00 to $116.93 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 $117.03 to $117.11 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	08/25/2026
	** 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)