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 |
|---|---|---|---|---|---|---|---|---|
| CLH | Gerstenberg Eric W | CO-CEO | 08/14/2026 | Verkauf | 321.34 | 2,500 | 803,350 | Form 4 |
| CLH | Robertson Andrea | Director | 08/03/2026 | Verkauf | 314.01 | 789 | 247,754 | Form 4 |
| CLH | Mckim Alan S | EXEC CHAIR, CTO. | 07/17/2026 | Steuer-Abgabe | 310.58 | 1,265 | 392,884 | Form 4 |
| CLH | Battles Michael Louis | CO-CEO | 07/01/2026 | Steuer-Abgabe | 290.74 | 1,032 | 300,044 | Form 4 |
| CLH | Curtis George L | EXEC. VICE PRESIDENT (CHESI) | 07/01/2026 | Steuer-Abgabe | 290.74 | 1,757 | 510,830 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).