COSTCO WHOLESALE CORP /NEW (COST)
Consumer Discretionary · Retail-Variety Stores
COSTCO WHOLESALE CORP /NEW (COST) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.
Top institutional holders (2026-Q3)
| Institution | Shares | Value | % Outstanding |
|---|---|---|---|
| PRINCIPAL FINANCIAL GROUP INC | 1,222,112 | .11B | 0.28% |
| Sumitomo Mitsui Trust Group, Inc. | 1,032,165 | $939.62M | 0.23% |
| EVERETT HARRIS & CO /CA/ | 731,934 | $666.31M | 0.17% |
| Swedbank AB | 660,749 | $601.51M | 0.15% |
| Emerald Advisors, LLC | 616,325 | $561.07M | 0.14% |
| PARNASSUS INVESTMENTS, LLC | 559,687 | $509.51M | 0.13% |
| Assenagon Asset Management S.A. | 501,309 | $456.36M | 0.11% |
| ProShare Advisors LLC | 497,314 | $452.72M | 0.11% |
Recent insider transactions
| Date | Insider | Title | Type | Value |
|---|---|---|---|---|
| 2026-10-13 | Wilcox William Richard | Executive Vice President | Sale | .05M |
| 2026-09-29 | Frates Caton | Sr. Executive Vice President | Sale | $733.3K |
| 2026-09-29 | Adamo Claudine | Executive Vice President | Sale | $2.02M |
| 2026-06-23 | DENMAN KENNETH D | Director | Sale | $847.3K |
| 2026-04-01 | Frates Caton | Executive Vice President | Sale | $695.1K |
| 2026-03-09 | Adamo Claudine | Executive Vice President | Sale | $732.2K |
| 2026-01-21 | Jones Teresa A. | Executive Vice President | Sale | $838.3K |
| 2026-01-16 | DECKER SUSAN L | Director | Sale | $437.4K |