Aflac officer sells 15,431 shares in Form 4

Aflac Inc. officer Masatoshi Koide sold 15,431 shares of common stock in an open-market transaction at $109.9300 per share.

Rhea-AI Filing Summary

Aflac Inc. officer Masatoshi Koide sold 15,431 shares of common stock in an open-market transaction at $109.9300 per share. After this sale, he directly holds 86,422 Aflac shares. The transaction, dated March 11, 2026, was executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 5, 2025.

Insider Trade Summary 10b5-1

Net Seller: 15,431 shares

Net Sell 1 txn

Insider Koide Masatoshi

Role Pres. and Rep. Director, ALIJ

Sold 15,431 shs ($1.70M)

Type	Security	Shares	Price	Value
Sale	Common Stock	15,431	$109.93	$1.70M

Holdings After Transaction: Common Stock — 86,422 shares (Direct)

Footnotes (1)

1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person dated as of December 5, 2025.

FAQ

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

What insider transaction did Aflac (AFL) report for Masatoshi Koide?

Aflac reported that officer Masatoshi Koide sold 15,431 shares of common stock. The open-market sale occurred at a price of $109.9300 per share, reflecting a planned disposition under a Rule 10b5-1 trading arrangement.

When did Masatoshi Koide sell Aflac (AFL) shares and at what price?

Masatoshi Koide sold Aflac common shares on March 11, 2026 at $109.9300 per share. This was an open-market transaction reported on Form 4, documenting his disposition of 15,431 shares in a single trade.

How many Aflac (AFL) shares does Masatoshi Koide hold after this Form 4 sale?

Following the reported transaction, Masatoshi Koide directly holds 86,422 Aflac common shares. This post-transaction balance reflects his remaining ownership after selling 15,431 shares in the open market as disclosed in the Form 4 filing.

Was Masatoshi Koide’s Aflac (AFL) share sale part of a Rule 10b5-1 plan?

Yes. The filing notes the sale was executed under a Rule 10b5-1 trading plan. That plan was adopted by Masatoshi Koide on December 5, 2025, indicating the transaction was pre-arranged rather than a discretionary market-timing decision.

What role does Masatoshi Koide hold at Aflac (AFL) in this insider filing?

In the filing, Masatoshi Koide is identified as an officer with the title "Pres. and Rep. Director, ALIJ." This reflects his leadership position within Aflac’s organization while reporting the sale of 15,431 common shares on Form 4.

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

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Accepted by SEC EDGAR 03/13/2026 - 04:52 PM 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^*

Koide Masatoshi

(Last) (First) (Middle)

C/O AFLAC INCORPORATED

1932 WYNNTON ROAD

(Street)

COLUMBUS GA 31999

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AFLAC INC [ AFL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Pres. and Rep. Director, ALIJ

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/11/2026		S		15,431(1)	D	$109.93	86,422	D

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 sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person dated as of December 5, 2025.

Remarks:

	By: Brooke R. Phillips For: Masatoshi Koide	03/13/2026
	** 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.