Form 4: Costco Executive Sells Shares Under Pre-Arranged Plan

A Senior Executive Vice President at Costco Wholesale Corp. sold 1,500 shares of common stock for over $1.3 million under a Rule 10b5-1 trading plan.

Summary

• Russell D. Miller, Senior Executive Vice President of Costco Wholesale Corp. (COST), disposed of 1,500 shares of common stock.
• The transaction occurred on January 9, 2026, with shares sold at a price of $916.32 per share.
• The total value of the shares sold amounts to $1,374,480.
• The sale was executed pursuant to a Rule 10b5-1(c) pre-arranged trading plan.
• Following the transaction, Mr. Miller beneficially owns 8,240 shares indirectly through the Miller Family Trust and 0.925 shares directly.

Sentiment

Score: 4

Explanation: The sentiment is slightly negative due to an insider sale, although mitigated by the fact it was a pre-arranged 10b5-1 plan, which suggests personal financial planning rather than a reaction to new, negative company information.

Negatives

• An insider, the Senior Executive Vice President, sold a significant number of shares, which could be interpreted as a lack of confidence, although it was part of a pre-arranged plan.

Industry Context

Insider sales, even those under Rule 10b5-1 plans, are routinely monitored by investors as they can provide insights into management's perspective on future company performance or personal financial planning. This transaction is specific to an individual executive and does not inherently reflect broader industry trends.

Related Party Transactions

• Russell D. Miller's indirect beneficial ownership of 8,240 shares is held through the Miller Family Trust, indicating a related party holding.

Stakeholder Impact

• Shareholders may interpret the executive's sale as a signal, potentially influencing short-term trading sentiment, though the Rule 10b5-1 plan suggests a pre-planned, non-discretionary sale.

Key Dates

Recommendation

While an insider sale can be a negative signal, the transaction was conducted under a Rule 10b5-1 plan, which implies it was pre-scheduled and not based on new, material non-public information. This mitigates the negative impact, suggesting a 'hold' rather than a 'sell' recommendation based solely on this filing, as the sale is likely for personal financial management rather than a lack of confidence in the company's future.

Keywords

Costco, COST, Insider Sale, Form 4, Executive Stock Sale, Rule 10b5-1, Russell D. Miller