Japan Post Holdings Co., Ltd., a major shareholder and insider in Aflac, sold 75,148 shares on April 9, 2026 at $113.19 per share, a transaction worth about $8.51 million. This is the largest of its reported sales over the past several days and comes after a sequence of smaller disposals earlier in the week. This trade matters because Japan Post is not an executive making routine compensation-related sales; it is a large institutional holder. When a significant owner trims its stake, it can be more meaningful than a one-off sale by an individual officer, since it may reflect portfolio rebalancing or a planned reduction in exposure. Retail investors often watch these moves for signals about shareholder base changes and potential supply of shares. The April 9 sale continues a clear, recent pattern: Japan Post has reported four straight selling days in the last 30 days, totaling roughly $15.9 million including this transaction (about $2.33 million on April 6, $2.67 million on April 7, $2.42 million on April 8, and $8.51 million on April 9). The sales were executed as Aflac’s share price rose from the high-$100s to $113.19, suggesting the insider has been reducing shares into a stronger price environment rather than adding to its position.