COST

Costco insider trading

21 Form 4 filings by 20 Costco insiders, accepted by the SEC between Sep 30, 2026 and Oct 27, 2026: 3 reporting sales (about $3,802,400 in total at the reported prices), 0 reporting open-market purchases, and 18 reporting awards, tax withholding, exercises or other transactions.

Costco company file · All Costco filings news

Oct 274:16 PM ET
COST · Form 4 · COST
Costco Executive VP John Christopher Sullivan reports an award of 4,552 shares
SEC filing
Oct 274:14 PM ET
COST · Form 4 · COST
Costco Executive Vice President Adam Webb Self reports about 260 shares withheld for taxes
SEC filing
Oct 274:13 PM ET
COST · Form 4 · COST
Costco Executive Vice President Javier Polit reports an award of 4,129 shares
SEC filing
Oct 269:53 PM ET
COST · Form 4 · COST
Costco Executive Vice President Gary Millerchip reports an award of 6,140 shares
SEC filing
Oct 269:44 PM ET
COST · Form 4 · COST
Costco CEO Roland Michael Vachris reports an award of 13,973 shares
SEC filing
Oct 269:28 PM ET
COST · Form 4 · COST
Costco director Mary Agnes Wilderotter reports an award of 266 shares
SEC filing
Oct 269:21 PM ET
COST · Form 4 · COST
Costco director John W. Stanton reports an award of 266 shares
SEC filing
Oct 269:13 PM ET
COST · Form 4 · COST
Costco director Gina Marie Raimondo reports an award of 266 shares
SEC filing
Oct 269:06 PM ET
COST · Form 4 · COST
Costco director Jeffrey S. Raikes reports an award of 266 shares
SEC filing
Oct 266:42 PM ET
COST · Form 4 · COST
Costco Executive Vice President James C. Klauer reports about 2,101 shares withheld for taxes
SEC filing
Oct 266:32 PM ET
COST · Form 4 · COST
Costco director Sally Jewell reports an award of 266 shares
SEC filing
Oct 266:28 PM ET
COST · Form 4 · COST
Costco director Hamilton E. James reports an award of 266 shares
SEC filing
Oct 266:27 PM ET
COST · Form 4 · COST
Costco Executive Vice President Sarah Catherine George reports about 260 shares withheld for taxes
SEC filing
Oct 266:21 PM ET
COST · Form 4 · COST
Costco director Helena Foulkes reports an award of 266 shares
SEC filing
Oct 266:19 PM ET
COST · Form 4 · COST
Costco director Kenneth D. Denman reports an award of 266 shares
SEC filing
Oct 266:17 PM ET
COST · Form 4 · COST
Costco director Susan L. Decker reports an award of 266 shares
SEC filing
Oct 266:15 PM ET
COST · Form 4 · COST
Costco insider Tiffany Marie Barbre reports an award of 1,965 shares
SEC filing
Oct 266:13 PM ET
COST · Form 4 · COST
Costco Executive Vice President Claudine Adamo reports about 692 shares withheld for taxes
SEC filing
Oct 147:00 PM ET
COST · Form 4 · COST
Costco Executive Vice President William Richard Wilcox reports selling 1,100 shares
SEC filing
Sep 305:52 PM ET
COST · Form 4 · COST
Costco Sr. Executive Vice President Caton Frates reports selling about 801 shares
SEC filing
Sep 305:48 PM ET
COST · Form 4 · COST
Costco Executive Vice President Claudine Adamo reports selling 2,200 shares
SEC filing

Times are when the SEC accepted the filing, in US Eastern time. Each note summarizes what the filing reports; none says whether to buy or sell.

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Editor holdings: The editor holds no position in any company named on this page. As of Nov 11, 2026.
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General education, the same for every reader. Not a recommendation to buy, sell or hold any security, and it doesn't consider your situation.