Japan Post Holdings Co., Ltd., a major insider in Aflac Inc., sold 17,820 shares on March 11, 2026 at $109.52 per share, for a total of about $1.95 million. A sale of this size by a strategic holder can matter to retail investors because it reflects an intentional reduction in ownership rather than routine small transactions. Japan Post’s role is different from that of an executive or director: it is a corporate insider, often associated with longer-term partnership or investment decisions. Its recent activity stands out for frequency. The company has been selling shares repeatedly over the past several trading days, including sales of roughly $720,900 on March 9 and $365,290 on March 10, culminating in the larger March 11 sale. A steady cadence of selling can indicate a structured divestment plan or portfolio rebalancing, even when the individual trade sizes vary. The March 11 session also saw other notable insider sales, including Koide Masatoshi (about $1.70 million) and Lake Charles D II (about $1.71 million). Multiple insiders selling around the same time can draw attention because it suggests broader net selling activity among holders with inside access, though it does not, by itself, explain the reasons behind each sale.