The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Gresham Gwendolyn since 2026.
This trader's CIK number is 1842114.
At the time of last reporting, Gresham Gwendolyn was the SVP of Core Laboratories Inc. /de/. (stock ticker symbol CLB).
Also see all insider trading activities at Core Laboratories Inc. /de/.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | CLB | 0 | $0 | 0 | $0 | 24,952 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-12-31 | CLB | Option Ex | 24,952 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Gresham Gwendolyn (SVP of Core Laboratories Inc. /de/ at the time of this reporting) see the Securities and Exchange Commission (SEC) website.