Costco Wholesale Corp (COST) Insider Trading

Total insider buys:
  • $3,181,699.25
Total insider sells:
  • $374,885,921.11
Most recent insider trade:
  • Aug. 20, 2025
Most active insider trader:
  • Richard A Galanti
Trader NameDateTitleAmountPriceTypeTotal Value
Jan. 15, 2014Director4,000$116.07Sell$464,280.00
Dec. 16, 2013Director8,000$117.92Sell$943,360.00
Nov. 15, 2013Director8,000$123.66Sell$989,280.00
Nov. 1, 2013Director12,915$118.76Sell$1,533,785.40
Nov. 1, 2013EVP4,000$118.93Sell$475,720.00
Nov. 1, 2013CFO17,081$119.18Sell$2,035,713.58
Oct. 31, 2013CFO2,081$118.11Sell$245,786.91
Oct. 29, 2013VP14,900$118.29Sell$1,762,521.00
Oct. 29, 2013CFO7,289$118.53Sell$863,965.17
Oct. 28, 2013Director11,376$116.65Sell$1,327,010.40
Oct. 25, 2013Insider3,905$115.95Sell$452,784.75
Oct. 24, 2013Insider2,500$116.14Sell$290,350.00
Oct. 24, 2013Director9,791$116.67Sell$1,142,315.97
Oct. 22, 2013Insider2,500$117.09Sell$292,725.00
Oct. 16, 2013VP10,000$116.37Sell$1,163,700.00
Oct. 15, 2013Director8,000$115.76Sell$926,080.00
Sept. 16, 2013Director8,000$118.36Sell$946,880.00
Aug. 15, 2013Director8,000$112.56Sell$900,480.00
July 15, 2013Director8,000$115.92Sell$927,360.00
June 14, 2013Director8,000$110.37Sell$882,960.00
June 11, 2013VP5,000$110.53Sell$552,650.00
May 15, 2013Director8,000$110.86Sell$886,880.00
May 2, 2013EVP3,000$109.11Sell$327,330.00
Nov. 14, 2012Director16,000$95.20Sell$1,523,200.00
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  • Insiders are both buying and selling Costco Wholesale Corp stock.

  • The insider traders at Costco Wholesale Corp are: Richard A Galanti, Susan L Decker, John W Meisenbach, Timothy L Rose, James P Murphy, John D Mckay, Paul G Moulton, Roland Michael Vachris, Richard M Libenson, Daniel M Hines, Russell D Miller, David S Petterson, James D Sinegal, James Sinegal, Patrick J Callans, Joseph P Portera, Claudine Adamo, Dennis R Zook, James C Klauer, W Craig Jelinek, Franz E Lazarus, Kenneth D Denman, Jeffrey H Brotman, Caton Frates, Pierre Riel, Yoram Rubanenko, Douglas W Schutt, Hamilton E James, Jill S Ruckelshaus, Marjorie Taylor Greene, Mary Agnes Wilderotter, Richard A. Galanti, John Mckay, Benjamin Sr Carson Sr, Richard Galanti, Jeffrey H. Brotman, James Murphy, Gary Millerchip, GALANTI RICHARD A, Teresa A Jones, Dennis R. Zook, Timothy Rose, DENMAN KENNETH D, and John W Stanton

  • The most active insider trader at Costco Wholesale Corp is Richard A Galanti with 41 trades.

  • James D Sinegal has sold the most Costco Wholesale Corp stock with a total value of $39,099,308.28.

  • John W Stanton has bought the most Costco Wholesale Corp stock with a total value of $3,108,000.00.

  • The most recent insider trade for Costco Wholesale Corp was on Aug. 20, 2025.

  • The single biggest insider buy for Costco Wholesale Corp was from John W Stanton with a total value of $1,554,000.00 on Nov. 10, 2015.

  • The single biggest insider sell for Costco Wholesale Corp was from Jeffrey H Brotman with a total value of $19,087,642.35 on Aug. 15, 2014.