| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CHX | Common Stock | Sale | $199,743 | -8,125 | -13% | $24.58 | 54,347 | 07 May 2021 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This transaction was executed in multiple trades at prices ranging from $24.58 to $24.61. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request, to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. |