InsiderTrades

Barbre Tiffany Marie

SEC CIK 2076006 · EDGAR

Buying vs selling by month open-market trades, last 24 months, COST
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
COSTCostcoPrincipal Accounting Off 5,155 — $1.16M 32025-10-222025-10-24

Most active insiders at COST, 12 months

#InsiderTitleBoughtSold
1 Miller Russell DSr. EVP —$4.47M
2 Adamo ClaudineEVP —$3.26M
3 POLIT JAVIEREVP —$2.26M
4 Wilcox William RichardEVP —$2.23M
5 Frates CatonEVP —$2.10M
6 Klauer James CEVP —$1.41M
7 Barbre Tiffany MariePrincipal Accounting Off —$1.16M
8 DENMAN KENNETH DDir —$847.3K
9 Jones Teresa A.EVP —$838.3K
10 DECKER SUSAN LDir —$437.4K

Transactions 3

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2025-10-24 2025-10-22 COST Costco Barbre Tiffany Marie Principal Accounting Off A - Grant $0.00 +2,118 6,937 +44% $0
M 2025-10-24 2025-10-22 COST Costco Barbre Tiffany Marie Principal Accounting Off F - Tax $944.68 -542.32 6,615 -8% -$512.3K
2025-10-24 2025-10-24 COST Costco Barbre Tiffany Marie Principal Accounting Off S - Sale $934.62 -1,239 5,155 -19% -$1.16M

Purchase Sale Sale after option exercise All abbreviations