Costco Wholesale's three largest insider shareholders as of April 22, 2026 are W Craig Jelinek (Ceo, 204.37K shares), Charles T Munger (Director, 168.10K shares), Patrick J Callans (Executive Vice President, 60.89K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| W Craig Jelinek | Ceo | 204,365 | 0 | 23 Dec, 2024 |
| Charles T Munger | - | 168,104 | 0 | 24 Oct, 2023 |
| Patrick J Callans | Executive Vice President | 60,895 | 0 | 24 Oct, 2025 |
| Hamilton E James | Chairman Of The Board | 55,538 | 0 | 24 Oct, 2025 |
| Roland Michael Vachris | President And Ceo | 52,258 | 0 | 24 Oct, 2025 |
| John Christopher Sullivan | Executive Vp | 47,671 | 0 | 24 Oct, 2025 |
| James C Klauer | Executive Vice President | 44,837 | 0 | 15 Jan, 2026 |
| Timothy L. Rose | Executive Vp | 33,025 | 0 | 14 Sep, 2022 |
| Paul G Moulton | Executive Vp | 28,833 | 0 | 16 Sep, 2021 |
| Richard A Galanti | Executive Vice President | 27,400 | 0 | 24 Oct, 2024 |
| John W Stanton | - | 24,090 | 0 | 24 Oct, 2025 |
| Daniel M. Hines | - | 12,186 | 0 | 24 Oct, 2024 |
| Joseph P Portera | Executive Vp | 11,987 | 0 | 16 Sep, 2021 |
| Jeffrey S Raikes | - | 11,293 | 0 | 28 Jan, 2026 |
| Pierre Riel | Executive Vice President | 11,256 | 0 | 12 Sep, 2025 |
| Javier Polit | Executive Vice President | 10,190 | 0 | 31 Dec, 2025 |
| Susan L Decker | - | 8,532 | 0 | 20 Jan, 2026 |
| Yoram Rubanenko | Executive Vice President | 8,247 | 0 | 12 Sep, 2025 |
| Russell D Miller | Sr. Executive Vice President | 0 | 8,240 | 12 Jan, 2026 |
| Claudine Adamo | Executive Vice President | 6,121 | 0 | 11 Mar, 2026 |
| Caton Frates | Executive Vice President | 5,815 | 0 | 01 Apr, 2026 |
| Tiffany Marie Barbre | - | 5,155 | 0 | 24 Oct, 2025 |
| Teresa A. Jones | Executive Vice President | 3,928 | 0 | 28 Jan, 2026 |
| Sarah Mr Sally Jewell | - | 3,613 | 0 | 24 Oct, 2025 |
| Richard M Libenson | - | 3,561 | 0 | 26 Oct, 2021 |
| Mary Agnes Wilderotter | - | 3,205 | 0 | 24 Oct, 2025 |
| William Richard Wilcox | Executive Vice President | 2,000 | 0 | 12 Nov, 2025 |
| John W Stanton | - | 0 | 422 | 04 Sep, 2025 |
| Gina Marie Raimondo | - | 215 | 0 | 20 Jan, 2026 |
| Russell D Miller | Sr. Executive Vice President | 2 | 0 | 24 Sep, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Caton Frates | Common Stock | D | 700 | $993.00 | 5,815 | D | S |
| 12 Mar, 2026 | Sarah Catherine George | Common Stock | D | 642 | $991.21 | 0 | I | I |
| 09 Mar, 2026 | Claudine Adamo | Common Stock | D | 730 | $1,003.02 | 6,121 | D | S |
| 27 Jan, 2026 | Jeffrey S Raikes | Common Stock | D | 5,115 | $0.00 | 11,293 | D | G |
| 27 Jan, 2026 | Teresa A. Jones | Common Stock | D | 300 | $0.00 | 3,928 | D | G |
| 21 Jan, 2026 | Teresa A. Jones | Common Stock | D | 850 | $986.26 | 4,228 | D | S |
| 16 Jan, 2026 | Gina Marie Raimondo | Common Stock | A | 215 | $0.00 | 215 | D | A |
| 16 Jan, 2026 | Susan L Decker | Common Stock | D | 458 | $955.00 | 8,532 | D | S |
| 14 Jan, 2026 | James C Klauer | Common Stock | D | 1,500 | $939.00 | 44,837 | D | S |
| 09 Jan, 2026 | Russell D Miller | Common Stock | D | 1,500 | $916.32 | 8,240 | I | S |
| 29 Dec, 2025 | Javier Polit | Common Stock | D | 2,049 | $867.21 | 10,748 | D | S |
| 30 Dec, 2025 | Javier Polit | Common Stock | D | 558 | $862.90 | 10,190 | D | S |
| 15 Dec, 2025 | Susan L Decker | Common Stock | D | 2,827 | $0.00 | 8,990 | D | G |
| 10 Nov, 2025 | Jeffrey S Raikes | Common Stock | D | 4,120 | $0.00 | 16,408 | D | G |
| 07 Nov, 2025 | William Richard Wilcox | Common Stock | D | 2,400 | $930.13 | 2,000 | D | S |
| 22 Oct, 2025 | Claudine Adamo | Common Stock | D | 122 | $944.68 | 10,134 | D | F |
| 22 Oct, 2025 | Caton Frates | Common Stock | D | 156 | $944.68 | 9,128 | D | F |
| 22 Oct, 2025 | Patrick J Callans | Common Stock | D | 240 | $944.68 | 61,572 | D | F |
| 22 Oct, 2025 | Jeffrey S Raikes | Common Stock | A | 286 | $0.00 | 20,528 | D | A |
| 22 Oct, 2025 | Mary Agnes Wilderotter | Common Stock | A | 286 | $0.00 | 3,205 | D | A |