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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 180d
Net −$7.7M0 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 |
Transaction mix · 180d
100%
Sells8 · $7.7M
Buys0 · $0
Top sellers · 180d
POLIT JAVIER · officer: Executive Vice President−$2.3M
Klauer James C · officer: Executive Vice President−$1.4M
Miller Russell D · officer: Sr. Executive Vice President−$1.4M
Transactions
8
0 buys · 8 sells
Bought
$0
Open market
Sold
$7.74M
Open market
Net flow
−$7.74M
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 |
By insider
- POLIT JAVIER−$2.26Mofficer: Executive Vice President0B · 2S
- Klauer James C−$1.41Mofficer: Executive Vice President0B · 1S
- Miller Russell D−$1.37Mofficer: Sr. Executive Vice President0B · 1S
- Jones Teresa A.−$838.32Kofficer: Executive Vice President0B · 1S
- Adamo Claudine−$732.21Kofficer: Executive Vice President0B · 1S
- Frates Caton−$695.1Kofficer: Executive Vice President0B · 1S
- DECKER SUSAN L−$437.39Kdirector0B · 1S
Beneficial ownership filings
Schedule 13D / 13G — investors holding more than 5% of COST-US.
DB · acquisition_ownership26
| Filed | Reporting person | Form | Type | Aggregate owned | % Class | Sole voting | Shared voting | Citizenship | |
|---|---|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | Vanguard Capital Management | — | IA | — | +7.49% | 0 | 0 | PENNSYLVANIA | SEC → |
| Mar 26, 2026 | The Vanguard Group | — | IA | — | 0.00% | 0 | 0 | PENNSYLVANIA | SEC → |
| Feb 01, 2022 | (1) BlackRock, Inc. | — | HC | — | +7.00% | 26.71M | 0 | Delaware | SEC → |
| Jan 29, 2021 | (1) BlackRock, Inc. | — | HC | — | +6.50% | 24.77M | 0 | Delaware | SEC → |
| Feb 04, 2019 | (1) BlackRock, Inc. | — | HC | — | +6.50% | 24.65M | 0 | Delaware | SEC → |
| Jan 23, 2017 | (1) BlackRock, Inc. | — | HC | — | +5.60% | 20.44M | 9.42K | Delaware | SEC → |
| Feb 11, 2015 | First Trust Portfolios L.P., First Trust Advisors L.P., The Charger Corporation | — | BD, IA, HC | — | +6.04% | 759.07K | — | Pennsylvania | SEC → |
| Feb 03, 2015 | (1) BlackRock, Inc. | — | HC | — | +5.20% | 19.07M | 0 | Delaware | SEC → |
| Jan 30, 2013 | (1) BlackRock, Inc. | — | HC | — | +5.88% | 25.63M | 0 | Delaware | SEC → |
| Feb 12, 2009 | Marsico Capital Management, LLC 84-1434992 | — | IA | — | +5.10% | 19.03M | 0 | Delaware | SEC → |
| Feb 14, 2006 | business group of UBS AG (see Item 7)) | — | BK, HC | — | +5.30% | 0 | 0 | Switzerland | SEC → |
| Feb 13, 2003 | FMR Corp. | — | HC | — | +0.63% | 469.03K | 0 | Delaware | SEC → |
| Feb 13, 2003 | Abigail P. Johnson | — | IN | — | +0.63% | 0 | 0 | United States of America | SEC → |
| Feb 13, 2003 | Edward C. Johnson 3d | — | IN | — | +0.63% | 0 | 0 | United States of America | SEC → |
| Feb 14, 2002 | Edward C. Johnson 3d | — | IN | — | +5.22% | 0 | 0 | United States of America | SEC → |
| Feb 14, 2002 | Abigail P. Johnson | — | IN | — | +5.22% | 0 | 0 | United States of America | SEC → |
| Feb 14, 2002 | FMR Corp. | — | HC | — | +5.22% | 4.12M | 0 | Commonwealth of Massachusetts | SEC → |
| Feb 15, 2001 | Thomas H. Bailey | — | IN | — | +2.50% | 11.43M | 0 | USA | SEC → |
| Feb 15, 2001 | EIN #84-0765359 | — | IA, CO | — | +2.50% | 11.43M | 0 | Colorado | SEC → |
| Feb 15, 2000 | Thomas H. Bailey | — | IN | — | +6.70% | 15.09M | 0 | USA | SEC → |
| Feb 15, 2000 | EIN #84-0765359 | — | IA, CO | — | +6.70% | 15.09M | 0 | Colorado | SEC → |
| Feb 12, 1999 | Thomas H. Bailey | — | IN | — | +6.20% | 0 | 13.58M | USA | SEC → |
| Feb 12, 1999 | EIN #84-0765359 | — | IA, CO | — | +6.20% | 0 | 13.58M | Colorado | SEC → |
| Feb 12, 1997 | Edward C. Johnson 3d | — | IN | — | +5.87% | 0 | 0 | United States of America | SEC → |
| Feb 12, 1997 | Abigail P. Johnson | — | IN | — | +5.87% | 0 | 0 | United States of America | SEC → |
| Feb 12, 1997 | 04-2507163) | — | HC | — | +5.87% | 116.14K | 0 | Commonwealth of Massachusetts | SEC → |
Top 10 holders · 8 quarters
13F position evolutionNo 13F history in
institutional_holders for COST-US.