Japan Post Holdings Reports on AFLAC Inc. (Form 4)

TL;DR

**Japan Post Holdings is an AFLAC insider, watch for their future trades.**

AI Summary

This Form 4 filing, dated March 24, 2026, indicates that Japan Post Holdings Co., Ltd. (CIK: 0001783464) is a reporting entity in relation to AFLAC Inc. (CIK: 0000004977). While the filing itself doesn't detail specific transactions, it establishes Japan Post Holdings as an insider with reporting obligations regarding AFLAC securities. This matters to investors because significant ownership changes by a major entity like Japan Post Holdings could signal confidence or concern about AFLAC's future performance, potentially influencing its stock price.

Why It Matters

This filing signals that Japan Post Holdings Co., Ltd. is an insider with reporting obligations for AFLAC Inc., meaning future filings will detail their transactions, which can influence investor sentiment and stock price.

Risk Assessment

Risk Level: low — This filing is purely administrative, establishing a reporting relationship without detailing any transactions, thus posing minimal immediate risk.

Analyst Insight

Investors should add Japan Post Holdings Co., Ltd. to their watch list for AFLAC Inc., as their future Form 4 filings will detail insider transactions that could provide valuable insights into AFLAC's prospects.

Key Players & Entities

• Japan Post Holdings Co., Ltd. (company) — Reporting entity
• AFLAC Inc. (company) — Issuer of securities
• 0001783464 (person) — CIK for Japan Post Holdings Co., Ltd.
• 0000004977 (person) — CIK for AFLAC Inc.

FAQ

Key Financial Figures

• $106.14 — ple transactions at prices ranging from $106.14 to $107.07 per share. The reporting per
• $107.07 — tions at prices ranging from $106.14 to $107.07 per share. The reporting person will pr
• $107.23 — ple transactions at prices ranging from $107.23 to $107.935 per share. The reporting pe
• $107.935 — tions at prices ranging from $107.23 to $107.935 per share. The reporting person will pr

Filing Documents

• tm269588-1_4seq1.html (4)
• tm269588-1_4seq1.xml (4) — 7KB
• 0001104659-26-033645.txt ( ) — 9KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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) 03/20/2026 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 03/20/2026 S 14,851 D $ 106.33 (1) 52,063,749 I See footnote (2) Common Stock 03/20/2026 S 1,949 D $ 107.53 (3) 52,061,800 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 $106.14 to $107.07 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") and Kenji Sano 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 owns 100% 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 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 $107.23 to $107.935 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/ Nobuyasu Kato, Rep. Exec. Officer and Executive Vice President of Japan Post Holdings Co., Ltd. 03/24/2026 ** Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities bene

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