John Christopher Sullivan $COST SEC Form 4 Insider Trading

John Christopher Sullivan has filed a total of 0 insider trades in $COST since 2021. We estimate that they now own 47,671 shares of $COST, worth an estimated $43.7 million.

Insider Trading at $COST

There have been a total of 90 insider trades reported at $COST since 2021, with 1,775 shares purchased and 178,724 shares sold. The most active insider traders in $COST stock have been Richard A Galanti, Claudine Adamo, and Caton Frates. The most recent trade was a sale of 1,500 shares reported by James C Klauer (Executive Vice President), made on Jan 14, 2026.

$COST Executives and Stock Owners with Insider Trades

• Richard A Galanti, Executive VP and CFO

• Claudine Adamo, Executive Vice President

• Caton Frates, Executive Vice President

• James C Klauer, Executive Vice President

• Patrick J Callans, Executive VP

• Teresa A. Jones, Executive Vice President

• Russell D Miller, Sr. Executive Vice President

• Russell D Miller, Senior EVP

• Richard A Galanti, Executive Vice President

• James P. Murphy, Executive VP

• Pierre Riel, Executive Vice President

• Patrick J Callans, Executive Vice President

• Roland Michael Vachris, Executive VP

• Russell D Miller, Executive Vice President

• Javier Polit, Executive Vice President

• Timothy L. Rose, Executive VP

• Pierre Riel, EVP

• Roland Michael Vachris, President and CEO

• Roland Michael Vachris, President and COO

• Joseph P Portera, Executive VP

• Gary Millerchip, Executive Vice President

• William Richard Wilcox, Executive Vice President

• Yoram Rubananko, Executive VP

• Yoram Rubanenko, Executive VP

• Yoram Rubanenko, Executive Vice President

*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.