Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| COST | Wilcox William Richard | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 1,935 | 1,746,105 | Form 4 |
| COST | Wilcox William Richard | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,129 | — | Form 4 |
| COST | Rubanenko Yoram | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 1,696 | 1,530,436 | Form 4 |
| COST | Rubanenko Yoram | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,129 | — | Form 4 |
| COST | Riel Pierre | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 1,562 | 1,409,518 | Form 4 |
| COST | Riel Pierre | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,552 | — | Form 4 |
| COST | Klauer James C | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 936 | 844,628 | Form 4 |
| COST | Klauer James C | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,129 | — | Form 4 |
| COST | Jones Teresa A. | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 1,459 | 1,316,572 | Form 4 |
| COST | Jones Teresa A. | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,129 | — | Form 4 |
| COST | Frates Caton | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 1,654 | 1,492,537 | Form 4 |
| COST | Frates Caton | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,552 | — | Form 4 |
| COST | Adamo Claudine | Executive Vice President | 09/10/2026 | Steuer-Abgabe | 902.38 | 917 | 827,482 | Form 4 |
| COST | Adamo Claudine | Executive Vice President | 09/10/2026 | Zuteilung | — | 4,129 | — | Form 4 |
| COST | Raikes Jeffrey S | Director | 07/10/2026 | Schenkung | — | 5,249 | — | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).