COST Ownership
Costco Wholesale Corp - Institutional & insider holdings
Ownership Breakdown
Stock Price
$0.00
Recent Insider Trading
View All Insider Trades →↑Recent Buys (5)
Miller Russell D
Sr. Executive Vice President
2026-01-09
POLIT JAVIER
Executive Vice President
2025-12-29
POLIT JAVIER
Executive Vice President
2025-12-30
DENMAN KENNETH D
Insider
2025-12-19
DECKER SUSAN L
Insider
2025-12-15
↓Recent Sells (0)
No recent insider sales
Understanding Stock Ownership
Institutional Ownership
Large investors like hedge funds and mutual funds that manage $100M+ must disclose their holdings quarterly via 13F filings. High institutional ownership often indicates strong fundamentals.
Insider Ownership
Company executives and directors must report their trades via SEC Form 4. Insider buying can signal confidence, while selling may occur for various reasons including diversification.
Why It Matters
Ownership structure reveals who believes in the company. Institutional investors conduct deep research, while insider buying shows internal confidence. Track ownership changes for investment signals.
Data Sources
Institutional data from SEC 13F filings (quarterly), insider trades from Form 4 filings (within 2 business days), and company proxy statements (annual ownership disclosures).
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View Complete AnalysisFrequently Asked Questions
Who owns COST?
COST (Costco Wholesale Corp) is owned by institutional investors (multiple), company insiders (various holdings), and retail investors. The largest institutional holders are disclosed in quarterly SEC 13F filings.
What is COST institutional ownership?
COST has significant institutional ownership from hedge funds, mutual funds, and investment firms. Check the holdings table above for detailed data.
What is COST insider ownership?
Company insiders hold shares of COST. Insider trading activity is tracked through SEC Form 4 filings.
Are COST insiders buying or selling?
Recent insider activity shows 5 buy transactions ($3.63M) and 0 sell transactions ($0). Insider buying exceeds selling, which could be a positive signal.