All stock lists
Costco Wholesale Corp /New (COST)
United States · Delayed Price · Currency is USD
Retail-Variety Stores
1000.50-2.82 (-0.28%)
Market cap
$436B
Insider Score
––Not scored
COST Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
Congress Trading
Recent trades of COST by members of U.S. Congress
| Politician | Type | Traded |
|---|---|---|
| Rick AllenHouse / R | Sale$1.00K – $15.00K | Sep 18, 2026 |
| Ro KhannaHouse / D | Purchase$1.00K – $15.00K | Sep 11, 2026 |
| Rich McCormickHouse / R | Sale$1.00K – $15.00K | Jul 30, 2026 |
| Alan ArmstrongSenate / R | Purchase$1.00K – $15.00K | Mar 27, 2026 |
| Gilbert Ray CisnerosHouse / D | Purchase$1.00K – $15.00K | Jan 30, 2026 |
| Gilbert CisnerosHouse / D | Purchase$1.00K – $15.00K | Jan 30, 2026 |
| Gilbert Ray CisnerosHouse / D | Purchase$1.00K – $15.00K | Jan 29, 2026 |
| Gilbert Ray CisnerosHouse / D | Sale$1.00K – $15.00K | Dec 24, 2025 |
Corporate Lobbying
Government lobbying spending instances
Loading filings…
Source: U.S. Senate LDA
Corporate Lobbying
COST Estimated quarterly lobbying spending
Source: U.S. Senate LDA
U.S. Patents
New COST patent grants
Loading patent grants…
Source: USPTO Open Data Portal
Government Contracts
Estimated quarterly amount awarded to COST from public contracts
Source: USAspending.gov
Recently reported changes in COST holdings by institutional investors
Scanning latest 13F filings…
Latest 0 13F filings · Source: SEC EDGAR
View all institutional owners →Congressional Trades
U.S. House and Senate disclosures referencing COST, reported under the STOCK Act.
| Politician | Chamber | Action | Amount | Date |
|---|---|---|---|---|
| No congressional trades recorded for COST. | ||||
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.