Price history
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Costco Whsl Corp
COST
- Current Tracked Holders
- 1
- One-Year Insider Activity
-
Purchases 0 $0Sales 15 $19.6M
Price history
Quarter-End Change Analysis
No published quarterly analysis yet
Reviewed research will appear here when it is published.
Current reported holders
| Portfolio Manager | Recent activity | Shares | Value | Portfolio |
|---|---|---|---|---|
| Thomas RussoGardner Russo & Quinn LLC | COSTUnchanged | 4,624 | $4,607,000 | 0.05% |
Long-term company research
Fundamental analysis
Research pending
Fundamental research pending
Reviewed company research will appear here when available.
Insider activity
One-year insider activity
Open-market purchases and sales only.
Checked 2026-08-11
| Date | Insider | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|
| 2026-06-23 | DENMAN KENNETH DDirector | Sale | 885 | $957 | $847,345 | SEC ↗ |
| 2026-04-01 | Frates CatonExecutive Vice President | Sale | 700 | $993 | $695,100 | SEC ↗ |
| 2026-03-09 | Adamo ClaudineExecutive Vice President | Sale | 730 | $1,003 | $732,205 | SEC ↗ |
| 2026-01-21 | Jones Teresa A.Executive Vice President | Sale | 850 | $986 | $838,318 | SEC ↗ |
| 2026-01-16 | DECKER SUSAN LDirector | Sale | 458 | $955 | $437,390 | SEC ↗ |
| 2026-01-14 | Klauer James CExecutive Vice President | Sale | 1,500 | $939 | $1.4M | SEC ↗ |
| 2026-01-09 | Miller Russell DSr. Executive Vice President | Sale | 1,500 | $916 | $1.4M | SEC ↗ |
| 2025-12-30 | POLIT JAVIERExecutive Vice President | Sale | 558 | $863 | $481,759 | SEC ↗ |
| 2025-12-29 | POLIT JAVIERExecutive Vice President | Sale | 2,049 | $867 | $1.8M | SEC ↗ |
| 2025-11-07 | Wilcox William RichardExecutive Vice President | Sale | 2,400 | $930 | $2.2M | SEC ↗ |
| 2025-10-24 | Barbre Tiffany MariePrincipal Accounting Officer | Sale | 1,239 | $935 | $1.2M | SEC ↗ |
| 2025-10-24 | Adamo ClaudineExecutive Vice President | Sale | 2,700 | $936 | $2.5M | SEC ↗ |
| 2025-09-29 | Miller Russell DSr. Executive Vice President | Sale | 3,381 | $915 | $3.1M | SEC ↗ |
| 2025-09-29 | Frates CatonExecutive Vice President | Sale | 1,540 | $910 | $1.4M | SEC ↗ |
| 2025-08-20 | Jones Teresa A.Executive Vice President | Sale | 600 | $992 | $595,230 | SEC ↗ |