COSTCO WHOLESALE CORP /NEW (COST)
$946.00+$11.34 (+1.21%) Today
Susan L. Decker - DirectorFounded in 1983, Costco Wholesale now operates a global chain of membership-based warehouse clubs, delivering high-quality goods and services at consistently low prices. As of its most recent fiscal year, Costco operated approximately 910 warehouses, serving more than 80 million members across its three geographic segments: Costco US (approximately 73% of total revenue), Costco Canada (13%), and Costco International (14%).Costco's core value proposition—quality products at unbeatable prices—has yielded consistently strong member renewal rates (93% in the US and Canada and nearly 90% internationally). About 55% of Costco's fiscal 2025 revenue came from its grocery offerings, and another 25% from general merchandise.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 885 | $847K |
| Bona-fide gift | 1 | 5,249 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
78 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Jeffrey S. Raikes - Director | Gift | Common Stock | 5,249 | $0.00 | - | |
| Kenneth D. Denman - Director | Open-market sale | Common Stock | 885 | $957.45 | $847K | |
| Caton Frates - Officer | Open-market sale | Common Stock | 700 | $993.00 | $695K | |
| Sarah Catherine George - Officer | Other | Common Stock | 642.13 | $991.21 | $636K | |
| Gary Millerchip - Officer | Tax withholding / forfeiture | Common Stock | 1,154 | $992.23 | $1.15M | |
| Claudine Adamo - Officer | Open-market sale | Common Stock | 730 | $1,003.02 | $732K | |
| Jeffrey S. Raikes - Director | Gift | Common Stock | 5,115 | $0.00 | - | |
| Teresa A. Jones - Officer | Gift | Common Stock | 300 | $0.00 | - | |
| Susan L. Decker - Director | Open-market sale | Common Stock | 458 | $955.00 | $437K | |
| Gina Marie Raimondo - Director | Grant or award | Common Stock | 215 | $0.00 | - | |
| James C. Klauer - Officer | Open-market sale | Common Stock | 1,500 | $939.00 | $1.41M | |
| Russell D. Miller - Officer | Open-market sale | Common Stock | 1,500 | $916.32 | $1.37M | |
| Javier Polit - Officer | Open-market sale | Common Stock | 558.31 | $862.90 | $482K | |
| Javier Polit - Officer | Open-market sale | Common Stock | 2,049 | $867.21 | $1.78M | |
| Kenneth D. Denman - Director | Gift | Common Stock | 325 | $0.00 | - | |
| Susan L. Decker - Director | Gift | Common Stock | 2,827 | $0.00 | - | |
| Jeffrey S. Raikes - Director | Gift | Common Stock | 4,120 | $0.00 | - | |
| William Richard Wilcox - Officer | Open-market sale | Common Stock | 2,400 | $930.13 | $2.23M | |
| Tiffany Marie Barbre | Tax withholding / forfeiture | Common Stock | 135.4 | $944.68 | $128K | |
| Tiffany Marie Barbre | Tax withholding / forfeiture | Common Stock | 84.6 | $944.68 | $80K | |
| Tiffany Marie Barbre | Open-market sale | Common Stock | 1,239 | $934.62 | $1.16M | |
| Tiffany Marie Barbre | Grant or award | Common Stock | 2,118 | $0.00 | - | |
| Tiffany Marie Barbre | Tax withholding / forfeiture | Common Stock | 113.53 | $944.68 | $107K | |
| Tiffany Marie Barbre | Tax withholding / forfeiture | Common Stock | 90.23 | $944.68 | $85K | |
| Tiffany Marie Barbre | Tax withholding / forfeiture | Common Stock | 118.56 | $944.68 | $112K | |
| Claudine Adamo - Officer | Open-market sale | Common Stock | 2,700 | $935.68 | $2.53M | |
| Claudine Adamo - Officer | Tax withholding / forfeiture | Common Stock | 121.78 | $944.68 | $115K | |
| Claudine Adamo - Officer | Tax withholding / forfeiture | Common Stock | 96.94 | $944.68 | $92K | |
| Claudine Adamo - Officer | Tax withholding / forfeiture | Common Stock | 198.69 | $944.68 | $188K | |
| Claudine Adamo - Officer | Tax withholding / forfeiture | Common Stock | 176.66 | $944.68 | $167K | |
| Claudine Adamo - Officer | Tax withholding / forfeiture | Common Stock | 110.57 | $944.68 | $104K | |
| Caton Frates - Officer | Tax withholding / forfeiture | Common Stock | 247.66 | $944.68 | $234K | |
| Caton Frates - Officer | Tax withholding / forfeiture | Common Stock | 758.28 | $944.68 | $716K | |
| Caton Frates - Officer | Tax withholding / forfeiture | Common Stock | 901.26 | $944.68 | $851K | |
| Caton Frates - Officer | Tax withholding / forfeiture | Common Stock | 705.75 | $944.68 | $667K | |
| Caton Frates - Officer | Tax withholding / forfeiture | Common Stock | 155.74 | $944.68 | $147K | |
| Jeffrey S. Raikes - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
| Patrick J. Callans - Officer | Tax withholding / forfeiture | Common Stock | 176.66 | $944.68 | $167K | |
| Patrick J. Callans - Officer | Tax withholding / forfeiture | Common Stock | 110.57 | $944.68 | $104K | |
| Patrick J. Callans - Officer | Tax withholding / forfeiture | Common Stock | 239.95 | $944.68 | $227K | |
| Patrick J. Callans - Officer | Tax withholding / forfeiture | Common Stock | 191.08 | $944.68 | $181K | |
| Patrick J. Callans - Officer | Tax withholding / forfeiture | Common Stock | 198.69 | $944.68 | $188K | |
| James C. Klauer - Officer | Tax withholding / forfeiture | Common Stock | 110.97 | $944.68 | $105K | |
| James C. Klauer - Officer | Tax withholding / forfeiture | Common Stock | 239.95 | $944.68 | $227K | |
| James C. Klauer - Officer | Tax withholding / forfeiture | Common Stock | 190.68 | $944.68 | $180K | |
| James C. Klauer - Officer | Tax withholding / forfeiture | Common Stock | 198.69 | $944.68 | $188K | |
| James C. Klauer - Officer | Tax withholding / forfeiture | Common Stock | 177.06 | $944.68 | $167K | |
| Roland Michael Vachris - Officer | Grant or award | Common Stock | 13,834 | $0.00 | - | |
| Roland Michael Vachris - Officer | Tax withholding / forfeiture | Common Stock | 1,493 | $944.68 | $1.41M | |
| Roland Michael Vachris - Officer | Tax withholding / forfeiture | Common Stock | 1,160 | $944.68 | $1.10M | |
| Susan L. Decker - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
| Sarah Mr Sally Jewell - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
| Kenneth D. Denman - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
 Helena Foulkes - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
 Mary Agnes Wilderotter - Director | Grant or award | Common Stock | 286 | $0.00 | - | |
| Hamilton E. James - Director | Grant or award | Common Stock | 286 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
COSTCO WHOLESALE CORP /NEW (COST) had 2 insider filings in the last 90 days, with the most recent on 2026-07-14. The full record for COST runs to 78 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of COST were filed in the last 90 days.
1 insider sale of COST was filed in the last 90 days, totaling $847K.
This page tracks COST Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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