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Costco Wholesale Corp

COST
Exchange
Nasdaq
Industry
Retail-Variety Stores
SEC CIK
0000909832

No open-market purchases or sales by Costco Wholesale Corp insiders were filed in the last 90 days; 4,260 institutions reported holding it in 13F filings for Q2 2026, worth $301.8B in total; 4 superinvestors hold it, including Markel Group and Gardner Russo & Quinn.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Costco Wholesale Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Costco Wholesale Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Costco Wholesale Corp
NameTitleLast reported holdingLast filingFilings, past year
Wilcox William RichardExecutive Vice President4,194Sep 14, 20262
Rubananko YoramExecutive Vice President10,680Sep 14, 20261
Riel PierreExecutive Vice President14,246Sep 14, 20261
Klauer James CExecutive Vice President48,030Sep 14, 20263
Jones Teresa A.Executive Vice President6,598Sep 14, 20263
Frates CatonExecutive Vice President8,713Sep 14, 20264
Adamo ClaudineExecutive Vice President9,334Sep 14, 20263
Raikes Jeffrey SDirector6,044Jul 14, 20264
Denman Kenneth DDirector4,779Jun 25, 20263
Millerchip GaryExecutive Vice President15,465Mar 13, 20262
George Sarah CatherineExecutive Vice President0IndirectMar 13, 20261
Decker Susan LDirector8,532Jan 20, 20263
Raimondo Gina MarieDirector215Jan 20, 20261
Miller Russell DSr. Executive Vice President8,240IndirectJan 12, 20262
Polit JavierExecutive Vice President10,190Dec 31, 20252
Stanton John WDirector24,090Oct 24, 20251
Jewell Sarah Mr SallyDirector3,613Oct 24, 20251
Wilderotter Mary AgnesDirector3,205Oct 24, 20251
James Hamilton EDirector55,538Oct 24, 20251
Foulkes HelenaDirector1,087Oct 24, 20251
Vachris Roland MichaelPresident and CEO52,258Oct 24, 20251
Callans Patrick JExecutive Vice President60,895Oct 24, 20251
Sullivan John ChristopherExecutive VP47,671Oct 24, 20251
Barbre Tiffany MarieOther: Principal Accounting Officer5,155Oct 24, 20251
Jelinek W CraigDirector204,365Dec 23, 20240
Galanti Richard AExecutive Vice President27,400Oct 24, 20240
Hines Daniel M.Other: Principal Acctg Officer12,186Oct 24, 20240
Munger Charles TDirector168,104Oct 24, 20230
Murphy James P.Executive VP38,084Oct 25, 20220
Rose Timothy L.Executive VP33,025Sep 14, 20220
Libenson Richard MDirector, Other: Director Emeritus3,561Oct 26, 20210
Portera Joseph PExecutive VP11,987Sep 16, 20210
Moulton Paul GExecutive VP28,833Sep 16, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 12, 2021 (view filing)Jul 12Same dayVachris Roland MichaelExecutive VPSSale−4.00K$409.40−$1.64M−25.6%11.6K after
Aug 13, 2021 (view filing)Aug 13Same dayPortera Joseph PExecutive VPSSale−3.29K$445.50−$1.46M−64.8%1.79K after
Dec 14, 2021 (view filing)Dec 131 dayCallans Patrick JExecutive VPSSale−2.50K$549.03−$1.37M−4.0%60.0K after
Dec 14, 2021 (view filing)Dec 131 dayRubananko YoramExecutive VPSSale−4.00K$550.72−$2.20M−37.8%6.59K after
Dec 14, 2021 (view filing)Dec 131 dayMurphy James P.Executive VPSSale−5.00K$559.32−$2.80M−11.0%40.3K after
Dec 14, 2021 (view filing)Dec 131 dayMiller Russell DExecutive Vice PresidentSSale−4.00K$556.02−$2.22M−33.2%8.04K after
Dec 15, 2021 (view filing)Dec 15Same dayGalanti Richard AExecutive VP and CFOSSale−2.22K$554.09−$1.23M−7.6%27.0K after2 lots
Dec 22, 2021 (view filing)Dec 211 dayWilderotter Mary AgnesDirectorPPurchase+925$540.13+$499.6K+9.7%10.4K after
Jan 28, 2022 (view filing)Jan 271 dayVachris Roland MichaelExecutive VPSSale−3.32K$492.45−$1.63M−18.5%14.6K after
Mar 24, 2022 (view filing)Mar 231 dayDenman Kenneth DDirectorSSale−250$554.68−$138.7K−4.4%5.50K after
Mar 29, 2022 (view filing)Mar 29Same dayRose Timothy L.Executive VPSSale−4.00K$566.29−$2.27M−12.3%28.4K after
Apr 8, 2022 (view filing)Apr 8Same dayHines Daniel M.Other: Principal Acctg OfficerSSale−4.50K$603.00−$2.71M−25.5%13.1K after
Apr 8, 2022 (view filing)Apr 8Same dayAdamo ClaudineExecutive Vice PresidentSSale−500$602.03−$301.0K−4.8%9.94K after
Jun 8, 2022 (view filing)Jun 71 dayWilderotter Mary AgnesDirectorPPurchase+850$470.74+$400.1K+8.1%11.3K after
Jun 23, 2022 (view filing)Jun 221 dayMurphy James P.Executive VPSSale−2.50K$464.00−$1.16M−6.2%37.7K after
Jul 15, 2022 (view filing)Jul 141 dayGalanti Richard AExecutive VP and CFOSSale−1.00K$505.60−$505.6K−3.7%25.8K after
Jul 15, 2022 (view filing)Jul 15Same dayDenman Kenneth DDirectorSSale−300$521.68−$156.5K−5.5%5.20K after
Jul 21, 2022 (view filing)Jul 201 dayMurphy James P.Executive VPSSale−1.50K$525.20−$787.8K−4.0%36.2K after
Oct 7, 2022 (view filing)Oct 7Same dayGalanti Richard AExecutive VP and CFOSSale−2.00K$471.12−$942.2K−6.4%29.3K after
Oct 26, 2022 (view filing)Oct 251 dayGalanti Richard AExecutive VP and CFOSSale−1.50K$477.65−$716.5K−5.1%27.8K after
Oct 27, 2022 (view filing)Oct 261 dayAdamo ClaudineExecutive Vice PresidentSSale−2.00K$495.97−$991.9K−26.0%5.68K after
Nov 4, 2022 (view filing)Nov 4Same dayMiller Russell DExecutive Vice PresidentSSale−1.00K$483.58−$483.6K−7.9%11.6K after
Dec 13, 2022 (view filing)Dec 121 dayDecker Susan LDirectorSSale−952$483.00−$459.8K−4.8%18.9K after
Jan 31, 2023 (view filing)Jan 274 daysKlauer James CExecutive Vice PresidentSSale−2.50K$503.69−$1.26M−5.8%40.9K after
Mar 7, 2023 (view filing)Mar 61 dayVachris Roland MichaelPresident and COOSSale−4.10K$476.29−$1.95M−18.5%18.1K after
Mar 8, 2023 (view filing)Mar 71 dayMiller Russell DSenior EVPSSale−1.50K$488.95−$733.4K−12.9%10.1K after
Mar 15, 2023 (view filing)Mar 141 dayGalanti Richard AExecutive VP and CFOSSale−2.07K$483.32−$999.5K−7.5%25.4K after
Apr 13, 2023 (view filing)Apr 112 daysFrates CatonExecutive Vice PresidentSSale−600$497.35−$298.4K−12.2%4.32K after
Jun 9, 2023 (view filing)Jun 72 daysDecker Susan LDirectorSSale−3.97K$514.14−$2.04M−21.0%14.9K after3 lots
Jun 15, 2023 (view filing)Jun 132 daysGalanti Richard AExecutive VP and CFOSSale−1.50K$522.03−$783.0K−5.9%23.9K after
Jun 29, 2023 (view filing)Jun 281 dayDecker Susan LDirectorSSale−1.56K$533.00−$834.1K−10.5%13.3K after
Oct 11, 2023 (view filing)Oct 65 daysFrates CatonExecutive Vice PresidentSSale−1.20K$562.64−$675.2K−12.5%8.36K after
Oct 11, 2023 (view filing)Oct 92 daysCallans Patrick JExecutive VPSSale−2.50K$553.76−$1.38M−3.5%67.9K after
Oct 12, 2023 (view filing)Oct 102 daysGalanti Richard AExecutive VP and CFOSSale−2.00K$565.57−$1.13M−6.6%28.1K after
Oct 12, 2023 (view filing)Oct 111 dayKlauer James CExecutive Vice PresidentSSale−1.50K$562.01−$843.0K−3.2%45.1K after
Oct 24, 2023 (view filing)Oct 231 dayAdamo ClaudineExecutive Vice PresidentSSale−2.56K$548.92−$1.41M−24.0%8.13K after
Nov 6, 2023 (view filing)Nov 33 daysMiller Russell DSenior EVPSSale−4.50K$557.75−$2.51M−29.4%10.8K after
Nov 8, 2023 (view filing)Nov 71 dayRiel PierreEVPSSale−3.00K$571.12−$1.71M−28.8%7.42K after
Nov 13, 2023 (view filing)Nov 85 daysGalanti Richard AExecutive VP and CFOSSale−2.00K$566.09−$1.13M−7.3%25.4K after2 lots
Dec 20, 2023 (view filing)Dec 191 dayGalanti Richard AExecutive VP and CFOSSale−1.11K$680.21−$756.2K−4.4%24.3K after
Jan 2, 2024 (view filing)Dec 28, 20235 daysHines Daniel M.Other: Principal Acctg OfficerSSale−1.40K$662.81−$927.9K−8.4%15.3K after
Jan 10, 2024 (view filing)Jan 91 dayHines Daniel M.Other: Principal Acctg OfficerSSale−1.40K$662.30−$927.2K−9.1%13.9K after
Jan 16, 2024 (view filing)Jan 16Same dayFrates CatonExecutive Vice PresidentSSale−740$683.50−$505.8K−9.9%6.72K after
Jan 18, 2024 (view filing)Jan 18Same dayRubananko YoramExecutive VPSSale−2.50K$680.33−$1.70M−29.7%5.91K after
Jan 23, 2024 (view filing)Jan 23Same dayJelinek W CraigDirectorSSale−8.00K$685.93−$5.49M−3.6%216.2K after
Feb 12, 2024 (view filing)Feb 93 daysDecker Susan LDirectorSSale−1.44K$723.48−$1.04M−10.4%12.4K after
Mar 13, 2024 (view filing)Mar 112 daysCallans Patrick JExecutive VPSSale−2.50K$714.86−$1.79M−3.8%62.9K after
Mar 13, 2024 (view filing)Mar 112 daysAdamo ClaudineExecutive Vice PresidentSSale−1.50K$714.83−$1.07M−18.3%6.69K after
Apr 18, 2024 (view filing)Apr 171 dayMiller Russell DSenior EVPSSale−785$722.86−$567.4K−7.3%10.0K after
Jul 15, 2024 (view filing)Jul 12-153 daysHines Daniel M.Other: Principal Acctg OfficerSSale−3.00K$846.37−$2.54M−21.4%11.0K after2 lots