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COST

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Costco Wholesale Corporation

COST · Consumer Defensive · Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puert…

Costco Wholesale Corporation (COST), in the Consumer Defensive sector, has 23 disclosed filings on Paydirt over the trailing twelve months from 8 members of Congress and 9 corporate insiders: 7 purchases and 16 sales, 1 filed past the deadline. Filers took a median of 5 days from execution to disclosure, and the most recent trade was executed Oct 13 and filed Oct 27. The most active filer was Gilbert Cisneros with 3 filings. Data as of Nov 7 2026.

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Filings, ttm

7 buys · 16 sells · 1 late

Traders, ttm

8 congress · 9 insiders

Volume, ttmiDollar value disclosed in the window

$13.0M

estimated for Congress, as filed for insiders

Median delay

execution to disclosure

Last traded

Oct 13

Filed Oct 27

ADViAverage daily dollar volume

$2.3B

market data

Share price · 12M

$1,012 (+11.1%)

Adjusted for splits and dividends.

Volume by month

Buys $153K Sells $43.7M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months

CA Claudine Adamo Executive Vice President 4 filings · 0 buys, 4 sales CF Caton Frates Sr. Executive Vice President 4 filings · 0 buys, 4 sales GC

Gilbert Cisneros Representative 3 filings · 2 buys, 1 sale RM

Richard Dean Dr McCormick Representative 3 filings · 2 buys, 1 sale BW

Bruce Westerman Representative 2 filings · 1 buy, 1 sale SD Susan L Decker Director 2 filings · 0 buys, 2 sales GL

Greg Landsman Representative (Spouse) 2 filings · 0 buys, 2 sales JS

Jefferson Shreve Representative 2 filings · 0 buys, 2 sales

All 33 filers

TJ Teresa A. Jones Executive Vice President 2 filings · 0 buys, 2 sales JK James C Klauer Executive Vice President 2 filings · 0 buys, 2 sales RM Russell D Miller Sr. Executive Vice President 2 filings · 0 buys, 2 sales SF

Scott Scott Franklin Representative (Spouse) 2 filings · 1 buy, 1 sale VH

Valerie Hoyle Representative (Spouse) 2 filings · 1 buy, 1 sale WW William Richard Wilcox Executive Vice President 2 filings · 0 buys, 2 sales AA

Alan Armstrong Senator (Joint) 1 filing · 1 buy, 0 sales TB Tiffany Marie Barbre Other 1 filing · 0 buys, 1 sale PC Patrick J Callans Executive Vice President 1 filing · 0 buys, 1 sale KD Kenneth D Denman Director 1 filing · 0 buys, 1 sale DN

Dan Newhouse Representative (Spouse) 1 filing · 1 buy, 0 sales JC

James Comer Representative 1 filing · 1 buy, 0 sales JB

John Boozman Senator (Joint) 1 filing · 1 buy, 0 sales LM

Lisa McClain Representative (Spouse) 1 filing · 1 buy, 1 sale GM Gary Millerchip Executive Vice President 1 filing · 0 buys, 1 sale MG

Marjorie Taylor Greene Representative 1 filing · 1 buy, 0 sales MG

Marjorie Taylor Mrs Greene Representative 1 filing · 1 buy, 0 sales MM

Markwayne Mullin Senator (Spouse) 1 filing · 1 buy, 0 sales JP Javier Polit Executive Vice President 1 filing · 0 buys, 1 sale PS

Pete Sessions Representative (Spouse) 1 filing · 0 buys, 1 sale RA

Richard W. Allen Representative (Spouse) 1 filing · 0 buys, 1 sale PR Pierre Riel Executive Vice President 1 filing · 0 buys, 1 sale YR Yoram Rubanenko Executive Vice President 1 filing · 0 buys, 1 sale SC

Shelley M Capito Senator (Spouse) 1 filing · 0 buys, 1 sale RV Roland Michael Vachris President and CEO 1 filing · 0 buys, 1 sale

Recent filings

Pete SessionsSALE Representative $550K
2 lots · $350K–750K bracket
Exec Oct 2
Filed Oct 27 William Richard WilcoxSALE Executive Vice President $1.1M
1,100 sh × $958.21
Exec Oct 13
Filed Oct 14 · 7:00 PM ET Richard W. AllenSALE Representative (Spouse) $8K
$1K–15K bracket
Exec Sep 18
Filed Oct 14 Caton FratesSALE Sr. Executive Vice President $733K
801 sh × $915.93
Exec Sep 29
Filed Sep 30 · 5:52 PM ET Claudine AdamoSALE Executive Vice President $2.0M
2,200 sh × $915.93
Exec Sep 29
Filed Sep 30 · 5:48 PM ET Richard Dean Dr McCormickSALE Representative $8K
$1K–15K bracket
Exec Jul 30
Filed Aug 14 Alan ArmstrongPURCHASE Senator $8K
$1K–15K bracket
Exec Mar 27
Filed Jul 21 † Dan NewhousePURCHASE Representative (Spouse) $8K
$1K–15K bracket
Exec Jul 10
Filed Jul 17 Kenneth D DenmanSALE Director $847K
885 sh × $957.45
Exec Jun 23
Filed Jun 25 · 5:30 PM ET Caton FratesSALE Executive Vice President $695K
700 sh × $993.00
Exec Apr 1
Filed Apr 1 · 5:30 PM ET Claudine AdamoSALE Executive Vice President $732K
730 sh × $1,003.02
Exec Mar 9
Filed Mar 11 · 5:30 PM ET Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Jan 30
Filed Feb 13 Teresa A. JonesSALE Executive Vice President $838K
850 sh × $986.26
Exec Jan 21
Filed Jan 23 · 5:30 PM ET Susan L DeckerSALE Director $437K
458 sh × $955.00
Exec Jan 16
Filed Jan 20 · 5:30 PM ET Markwayne MullinPURCHASE Senator (Joint) $33K
$15K–50K bracket
Exec Dec 29 2025
Filed Jan 16 James C KlauerSALE Executive Vice President $1.4M
1,500 sh × $939.00
Exec Jan 14
Filed Jan 15 · 5:30 PM ET Russell D MillerSALE Sr. Executive Vice President $1.4M
1,500 sh × $916.32
Exec Jan 9
Filed Jan 12 · 5:30 PM ET Gilbert CisnerosSALE Representative $8K
$1K–15K bracket
Exec Dec 24 2025
Filed Jan 12 Javier PolitSALE Executive Vice President $2.3M
2,607 sh across 2 lots
Exec Dec 29 2025
Filed Dec 31 2025 · 5:30 PM ET Richard Dean Dr McCormickPURCHASE Representative $8K
$1K–15K bracket
Exec Nov 5 2025
Filed Dec 9 2025 Gilbert CisnerosPURCHASE Representative $8K
$1K–15K bracket
Exec Oct 17 2025
Filed Nov 18 2025 John BoozmanPURCHASE Senator (Joint) $8K
$1K–15K bracket
Exec Oct 9 2025
Filed Nov 15 2025 William Richard WilcoxSALE Executive Vice President $2.2M
2,400 sh × $930.13
Exec Nov 7 2025
Filed Nov 12 2025 · 5:30 PM ET Shelley M CapitoSALE Senator (Spouse) $8K
$1K–15K bracket
Exec Oct 17 2025
Filed Nov 4 2025 Claudine AdamoSALE Executive Vice President $2.5M
2,700 sh × $935.68
Exec Oct 24 2025
Filed Oct 24 2025 · 5:30 PM ET