Costco Wholesale (COST) is down 4.2% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely trigger is a sell-the-news reaction to Costco’s June sales update. The company posted strong headline growth, but part of that strength came from higher gasoline prices, which may have led investors to focus on the lower adjusted comparable-sales figure and take profits in a stock that has traded at a premium valuation. ([investor.costco.com](https://investor.costco.com/news/news-details/2026/Costco-Wholesale-Corporation-Reports-June-Sales-Results-and-Announces-Quarterly-Cash-Dividend/default.aspx?utm_source=openai))

Details:

Sources:

Costco Wholesale Investor Relations, MarketScreener, Benzinga

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$COST Insider Trading Activity

$COST insiders have traded $COST stock on the open market 6 times in the past 6 months. Of those trades, 0 have been purchases and 6 have been sales.

Here’s a breakdown of recent trading of $COST stock by insiders over the last 6 months:

• JAMES C KLAUER (Executive Vice President) sold 1,500 shares for an estimated $1,408,500
• RUSSELL D MILLER (Sr. Executive Vice President) sold 1,500 shares for an estimated $1,374,480
• KENNETH D DENMAN sold 885 shares for an estimated $847,345
• TERESA A. JONES (Executive Vice President) sold 850 shares for an estimated $838,318
• CATON FRATES (Executive Vice President) sold 700 shares for an estimated $695,100
• SUSAN L DECKER sold 458 shares for an estimated $437,390

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

$COST Hedge Fund Activity

We have seen 1,841 institutional investors add shares of $COST stock to their portfolio, and 1,602 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

• DIAMANT ASSET MANAGEMENT, INC. added 6,720,130 shares (+99278.0%) to their portfolio in Q1 2026, for an estimated $6,676,717,960
• CORIENT PRIVATE WEALTH LLC removed 5,366,419 shares (-87.6%) from their portfolio in Q1 2026, for an estimated $5,331,751,933
• CAPITAL INTERNATIONAL INVESTORS added 2,109,174 shares (+329.4%) to their portfolio in Q1 2026, for an estimated $2,095,548,735
• CAPITAL WORLD INVESTORS removed 1,903,121 shares (-48.3%) from their portfolio in Q1 2026, for an estimated $1,890,826,838
• ROCKEFELLER CAPITAL MANAGEMENT L.P. removed 1,488,403 shares (-77.8%) from their portfolio in Q1 2026, for an estimated $1,478,787,916
• VESTOR CAPITAL, LLC removed 969,823 shares (-99.9%) from their portfolio in Q1 2026, for an estimated $963,557,943
• NUVEEN, LLC added 901,338 shares (+41.5%) to their portfolio in Q1 2026, for an estimated $895,515,356

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$COST Congressional Stock Trading

Members of Congress have traded $COST stock 1 times in the past 6 months. Of those trades, 1 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $COST stock by members of Congress over the last 6 months:

• REPRESENTATIVE GILBERT RAY CISNEROS, JR. purchased up to $15,000 on 01/30.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard. You can access data on congressional stock trades through the Quiver Quantitative API Congress trades endpoint.

$COST Analyst Ratings

Wall Street analysts have issued reports on $COST in the last several months. We have seen 1 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

• BTIG issued a "Buy" rating on 03/05/2026

To track analyst ratings and price targets for $COST, check out Quiver Quantitative's $COST forecast page.

$COST Price Targets

Multiple analysts have issued price targets for $COST recently. We have seen 14 analysts offer price targets for $COST in the last 6 months, with a median target of $1112.5.

Here are some recent targets:

• Christopher Horvers from JP Morgan set a target price of $1100.0 on 07/09/2026
• Steven Zaccone from Citigroup set a target price of $1020.0 on 06/18/2026
• Michael Baker from DA Davidson set a target price of $1000.0 on 06/04/2026
• Oliver Chen from TD Cowen set a target price of $1175.0 on 06/03/2026
• Robert Drbul from BTIG set a target price of $1125.0 on 05/29/2026
• Robert Ohmes from B of A Securities set a target price of $1200.0 on 05/29/2026
• Scot Ciccarelli from Truist Securities set a target price of $1011.0 on 05/29/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.

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