Insider Trading March 31, 2026

Japan Post Reduces Aflac Stake with $1.55M Sale; Shares Remain Slightly Above Fair Value

14,500 Aflac shares sold in three tranches; company posts mixed Q4 2025 results and Mizuho reiterates Underperform

By Ajmal Hussain AFL
Japan Post Reduces Aflac Stake with $1.55M Sale; Shares Remain Slightly Above Fair Value
AFL

Japan Post Holdings Co., Ltd. disposed of 14,500 shares of Aflac Inc. on March 27, 2026, generating proceeds of $1.55 million. The trades, executed in three separate transactions, ranged from $106.33 to $108.73 per share. After the sale, Japan Post directly holds 51,989,200 Aflac shares. The insurer reported mixed fourth-quarter 2025 results, with revenue above estimates but earnings per share below expectations. An analyst moved Aflac's price target higher while keeping an Underperform rating.

Key Points

  • Japan Post sold 14,500 Aflac shares on March 27, 2026, for $1.55 million in three transactions, reducing its holdings to 51,989,200 shares.
  • Aflac's Q4 2025 results were mixed: EPS of $1.57 missed the $1.70 estimate (a 7.65% negative surprise), while revenue of $4.87 billion beat the $4.28 billion forecast by 13.79%.
  • Mizuho raised its price target to $107 from $104 but kept an Underperform rating and anticipates a -6% return; InvestingPro marks the stock slightly over fair value.

Japan Post Holdings Co., Ltd., which owns a roughly ten percent stake in Aflac Inc. (NYSE: AFL), sold 14,500 shares of the insurer's common stock on March 27, 2026, according to a Form 4 filed with the U.S. Securities and Exchange Commission. The aggregated proceeds from the disposition totaled $1.55 million, with executed sale prices spanning $106.6 to $108.45 per share.

The SEC filing breaks the sale into three distinct transactions. The first tranche consisted of 7,336 shares sold at a weighted average price of $106.60, with individual execution prices between $106.33 and $107.33. The second tranche comprised 5,801 shares at an average price of $107.91, with the per-share prices ranging from $107.35 to $108.35. The final block included 1,363 shares at a weighted average price of $108.45; those trades occurred between $108.36 and $108.73.

Following these sales, Japan Post Holdings' direct ownership stands at 51,989,200 Aflac shares. At the time of reporting, Aflac's share price is $108.88, which sits slightly above InvestingPro's Fair Value estimate and has placed the stock on InvestingPro's most overvalued watchlist.

InvestingPro tips included with the filing note that Aflac has increased its dividend for 42 consecutive years and currently yields 2.26%. The platform also indicates investors can access five additional ProTips and more in-depth analysis through its Pro Research Report.

Separately, Aflac's fourth-quarter 2025 results showed a mixed performance. Reported earnings per share were $1.57, below the anticipated $1.70, representing a 7.65% negative surprise relative to expectations. Revenue for the quarter reached $4.87 billion, outperforming the forecasted $4.28 billion by 13.79%.

In the analyst community, Mizuho adjusted its price target on Aflac to $107 from $104 but maintained an Underperform rating on the stock. Despite lifting the target, Mizuho projects a negative 6% return for the shares based on its outlook.

The combination of an insider sale by a large shareholder, mixed quarterly results, and a cautious analyst stance outlines the current picture for Aflac without drawing conclusions beyond the disclosed facts. The filings and reported financials present concrete data points for shareholders and market observers to weigh.


Key details:

  • Insider seller: Japan Post Holdings Co., Ltd.
  • Shares sold: 14,500 on March 27, 2026 for $1.55 million total
  • Price range of sales: $106.33 to $108.73 per share; reported consolidated sale prices $106.6 to $108.45
  • Post-sale direct ownership: 51,989,200 Aflac shares
  • Latest market price: $108.88; InvestingPro flags the stock as on its most overvalued watchlist

Risks

  • Large shareholder selling activity could be interpreted by market participants as negative sentiment, potentially affecting short-term market demand for Aflac - this impacts the insurance and broader financial markets.
  • Earnings per share came in below expectations even as revenue beat forecasts, indicating potential pressure on profitability metrics that could influence investor valuation of the insurance sector.
  • Analyst caution persists: despite a higher price target, an Underperform rating and a forecasted -6% return from Mizuho underscore uncertainty in near-term share performance, affecting investor sentiment in insurance equities.

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