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Arphra AIPlain-English read on Costco Wholesale Corporation’s valuationInsider signal · 90d
Net sellers
Bought
$0
Sold
$695.1K
Txns
1
Over the trailing 90 days insiders are net sellers — $0 bought against $695.1K sold across 1 open-market Form-4 transactions. Much insider selling is scheduled (10b5-1); read the asymmetry, not any single print.
Open-market Form 4
· insider_tradesInsider transactions · last 365d
Net −$22.7M0 buys
| Insider | Role | Type | Shares | Value | Date |
|---|---|---|---|---|---|
| Frates Caton | officer: Executive Vice President | Sell | −700 | $695.1K | Apr 01, 2026 |
| Adamo Claudine | officer: Executive Vice President | Sell | −730 | $732.2K | Mar 09, 2026 |
| Jones Teresa A. | officer: Executive Vice President | Sell | −850 | $838.3K | Jan 21, 2026 |
| DECKER SUSAN L | director | Sell | −458 | $437.4K | Jan 16, 2026 |
| Klauer James C | officer: Executive Vice President | Sell | −1,500 | $1.4M | Jan 14, 2026 |
| Miller Russell D | officer: Sr. Executive Vice President | Sell | −1,500 | $1.4M | Jan 09, 2026 |
| POLIT JAVIER | officer: Executive Vice President | Sell | −558.305 | $481.8K | Dec 30, 2025 |
| POLIT JAVIER | officer: Executive Vice President | Sell | −2,049 | $1.8M | Dec 29, 2025 |
| Wilcox William Richard | officer: Executive Vice President | Sell | −2,400 | $2.2M | Nov 07, 2025 |
| Adamo Claudine | officer: Executive Vice President | Sell | −2,700 | $2.5M | Oct 24, 2025 |
| Barbre Tiffany Marie | other: Principal Accounting Officer | Sell | −1,239.383 | $1.2M | Oct 24, 2025 |
| Frates Caton | officer: Executive Vice President | Sell | −1,540 | $1.4M | Sep 29, 2025 |
| Miller Russell D | officer: Sr. Executive Vice President | Sell | −3,381 | $3.1M | Sep 29, 2025 |
| Jones Teresa A. | officer: Executive Vice President | Sell | −600 | $595.2K | Aug 20, 2025 |
Transaction mix · 365d
100%
Sells15 · $22.7M
Buys0 · $0
Top sellers · 365d
Miller Russell D · officer: Sr. Executive Vice President−$4.5M
Rubanenko Yoram · officer: Executive Vice President−$3.9M
Adamo Claudine · officer: Executive Vice President−$3.3M
Transactions
15
0 buys · 15 sells
Bought
$0
Open market
Sold
$22.65M
Open market
Net flow
−$22.65M
Buys − sells
Transactions
| Insider | Role | Action | Shares | Price | Value | Trade date | Filing |
|---|---|---|---|---|---|---|---|
| Frates Caton | officer: Executive Vice President | Sell | 700 | $993.00 | $695.1K | Apr 01, 2026 | Apr 01, 2026 |
| Adamo Claudine | officer: Executive Vice President | Sell | 730 | $1,003.02 | $732.21K | Mar 09, 2026 | Mar 11, 2026 |
| Jones Teresa A. | officer: Executive Vice President | Sell | 850 | $986.26 | $838.32K | Jan 21, 2026 | Jan 23, 2026 |
| DECKER SUSAN L | director | Sell | 458 | $955.00 | $437.39K | Jan 16, 2026 | Jan 20, 2026 |
| Klauer James C | officer: Executive Vice President | Sell | 1,500 | $939.00 | $1.41M | Jan 14, 2026 | Jan 15, 2026 |
| Miller Russell D | officer: Sr. Executive Vice President | Sell | 1,500 | $916.32 | $1.37M | Jan 09, 2026 | Jan 12, 2026 |
| POLIT JAVIER | officer: Executive Vice President | Sell | 558 | $862.90 | $481.76K | Dec 30, 2025 | Dec 31, 2025 |
| POLIT JAVIER | officer: Executive Vice President | Sell | 2,049 | $867.21 | $1.78M | Dec 29, 2025 | Dec 31, 2025 |
| Wilcox William Richard | officer: Executive Vice President | Sell | 2,400 | $930.13 | $2.23M | Nov 07, 2025 | Nov 12, 2025 |
| Adamo Claudine | officer: Executive Vice President | Sell | 2,700 | $935.68 | $2.53M | Oct 24, 2025 | Oct 24, 2025 |
| Barbre Tiffany Marie | other: Principal Accounting Officer | Sell | 1,239 | $934.62 | $1.16M | Oct 24, 2025 | Oct 24, 2025 |
| Frates Caton | officer: Executive Vice President | Sell | 1,540 | $910.02 | $1.4M | Sep 29, 2025 | Sep 30, 2025 |
| Miller Russell D | officer: Sr. Executive Vice President | Sell | 3,381 | $915.00 | $3.09M | Sep 29, 2025 | Oct 01, 2025 |
| Jones Teresa A. | officer: Executive Vice President | Sell | 600 | $992.05 | $595.23K | Aug 20, 2025 | Aug 22, 2025 |
| Rubanenko Yoram | officer: Executive Vice President | Sell | 4,000 | $974.96 | $3.9M | Jul 14, 2025 | Jul 15, 2025 |
By insider
- Miller Russell D−$4.47Mofficer: Sr. Executive Vice President0B · 2S
- Rubanenko Yoram−$3.9Mofficer: Executive Vice President0B · 1S
- Adamo Claudine−$3.26Mofficer: Executive Vice President0B · 2S
- POLIT JAVIER−$2.26Mofficer: Executive Vice President0B · 2S
- Wilcox William Richard−$2.23Mofficer: Executive Vice President0B · 1S
- Frates Caton−$2.1Mofficer: Executive Vice President0B · 2S
- Jones Teresa A.−$1.43Mofficer: Executive Vice President0B · 2S
- Klauer James C−$1.41Mofficer: Executive Vice President0B · 1S
- Barbre Tiffany Marie−$1.16Mother: Principal Accounting Officer0B · 1S
- DECKER SUSAN L−$437.39Kdirector0B · 1S
Beneficial ownership filings
Schedule 13D / 13G — investors holding more than 5% of COST-AR.
DB · acquisition_ownership3
Top 10 holders · 8 quarters
13F position evolutionNo 13F history in
institutional_holders for COST-AR.