// company-profile
Costco Wholesale Corp /new
COSTExchangeNasdaqSectorRetail-Variety StoresInc.WAFilings175Insiders28
// api This Costco Wholesale Corp /new insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Costco Wholesale Corp /new insiders sold $695K across 1 transaction with no open-market purchases.
- Most active insider: Frates Caton with 1 transaction totaling $695K.
- Largest single sale: $695K by Frates Caton on Apr 1, 2026.
Activity skews bearish — sales outpace buys.
Institutional Ownership
Top 13F-HR holders of Costco Wholesale Corp /new as of 2026-03-31
Total reported AUM
$283.61B
QoQ change
+19.8%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$28.74B
28.8M shares
#2
STATE STREET CORP
CIK 93751
$18.09B
18.2M shares
#3
BlackRock, Inc.
CIK 2012383
$12.75B
12.8M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 1, 2026 | Frates Caton | COST | Sale | 700 | $993.00 | $695K |
| Mar 12, 2026 | George Sarah Catherine | COST | I | 642.125 | $991.21 | $636K |
| Mar 11, 2026 | MILLERCHIP GARY | COST | Tax Withholding | 1,154.017 | $992.23 | $1.15M |
| Mar 9, 2026 | Adamo Claudine | COST | Sale | 730 | $1003.02 | $732K |
| Jan 27, 2026 | RAIKES JEFFREY S | COST | Gift | 5,115 | $0.00 | $0K |
45 more transactions hidden
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