CLB
Core Laboratories NV
NYSE: CLB · ENERGY · OIL & GAS EQUIPMENT & SERVICES
$10.50
+1.65% today
Updated 2026-10-28
Market cap
$461.60M
P/E ratio
19.35
P/S ratio
0.89x
EPS (TTM)
$0.52
Dividend yield
0.39%
52W range
$9 – $20
Volume
0.6M
Core Laboratories NV (CLB) Insider transactions
Net insider activity
Net buying (431,593 shares)
Buy transactions
50
Sell transactions
50
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2023-04-01 | VAN, DIJKEN EEUWIJK MONIQUE | Director | Sale | 5,485 | — | — |
| 2023-04-01 | VAN, DIJKEN EEUWIJK MONIQUE | Director | Buy | 5,485 | — | — |
| 2023-04-01 | TEMENG, KWAKU | Director | Buy | 6,419 | — | — |
| 2023-04-01 | TEMENG, KWAKU | Director | Sale | 5,485 | — | — |
| 2023-04-01 | TEMENG, KWAKU | Director | Buy | 5,485 | — | — |
| 2023-04-01 | STRAUGHEN, MICHAEL | Director | Buy | 6,419 | — | — |
| 2023-04-01 | STRAUGHEN, MICHAEL | Director | Sale | 5,485 | — | — |
| 2023-04-01 | STRAUGHEN, MICHAEL | Director | Buy | 5,485 | — | — |
| 2023-04-01 | STRAUGHEN, MICHAEL | Director | Sale | 2,524 | $22.05 | $55654.20 |
| 2023-04-01 | MURRAY, KATHERINE | Director | Buy | 6,419 | — | — |
| 2023-04-01 | MURRAY, KATHERINE | Director | Sale | 5,485 | — | — |
| 2023-04-01 | MURRAY, KATHERINE | Director | Buy | 5,485 | — | — |
| 2023-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Buy | 6,419 | — | — |
| 2023-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Sale | 5,485 | — | — |
| 2023-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Buy | 5,485 | — | — |
| 2023-04-01 | CARNES, MARTHA Z. | Director | Buy | 6,419 | — | — |
| 2023-04-01 | CARNES, MARTHA Z. | Director | Sale | 5,485 | — | — |
| 2023-04-01 | CARNES, MARTHA Z. | Director | Buy | 5,485 | — | — |
| 2023-02-16 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 21,418 | — | — |
| 2023-02-16 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Buy | 52,718 | — | — |
| 2023-02-16 | GRESHAM, GWENDOLYN | SVP | Buy | 21,418 | — | — |
| 2023-02-16 | DANIELS, KEVIN | CAO & Treasurer | Buy | 12,240 | — | — |
| 2023-02-16 | BRUNO, LAWRENCE | Director, Chairman and CEO | Buy | 155,126 | — | — |
| 2022-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Sale | 31,688 | — | — |
| 2022-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Buy | 31,688 | — | — |
| 2022-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Sale | 12,470 | $20.27 | $252766.90 |
| 2022-12-31 | GRESHAM, GWENDOLYN | SVP | Sale | 12,000 | — | — |
| 2022-12-31 | GRESHAM, GWENDOLYN | SVP | Sale | 12,000 | — | — |
| 2022-12-31 | GRESHAM, GWENDOLYN | SVP | Buy | 4,722 | $20.27 | $95714.94 |
| 2022-12-31 | DANIELS, KEVIN | CAO & Treasurer | Sale | 6,000 | — | — |
| 2022-12-31 | DANIELS, KEVIN | CAO & Treasurer | Buy | 6,000 | — | — |
| 2022-12-31 | DANIELS, KEVIN | CAO & Treasurer | Sale | 2,361 | $20.27 | $47857.47 |
| 2022-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Sale | 91,212 | — | — |
| 2022-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Buy | 91,212 | — | — |
| 2022-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Sale | 35,892 | $20.27 | $727530.84 |
| 2022-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 160 | — | — |
| 2022-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 160 | — | — |
| 2022-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 63 | $21.50 | $1354.50 |
| 2022-12-01 | DANIELS, KEVIN | CAO & Treasurer | Sale | 140 | — | — |
| 2022-12-01 | DANIELS, KEVIN | CAO & Treasurer | Buy | 140 | — | — |
| 2022-12-01 | DANIELS, KEVIN | CAO & Treasurer | Sale | 56 | $21.50 | $1204.00 |
| 2022-10-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 700 | — | — |
| 2022-10-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 700 | — | — |
| 2022-10-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 276 | $13.48 | $3720.48 |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 250 | — | — |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 120 | — | — |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 250 | — | — |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 120 | — | — |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 112 | $18.02 | $2018.24 |
| 2022-08-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 54 | $18.02 | $973.08 |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 250 | — | — |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 200 | — | — |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 250 | — | — |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 200 | — | — |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 97 | $26.00 | $2522.00 |
| 2022-05-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 77 | $26.00 | $2002.00 |
| 2022-04-01 | VAN, DIJKEN EEUWIJK MONIQUE | Director | Buy | 5,485 | — | — |
| 2022-04-01 | VAN, DIJKEN EEUWIJK MONIQUE | Director | Sale | 4,307 | — | — |
| 2022-04-01 | VAN, DIJKEN EEUWIJK MONIQUE | Director | Buy | 4,307 | — | — |
| 2022-04-01 | TEMENG, KWAKU | Director | Buy | 5,485 | — | — |
| 2022-04-01 | TEMENG, KWAKU | Director | Sale | 4,307 | — | — |
| 2022-04-01 | TEMENG, KWAKU | Director | Buy | 4,307 | — | — |
| 2022-04-01 | STRAUGHEN, MICHAEL | Director | Buy | 5,485 | — | — |
| 2022-04-01 | STRAUGHEN, MICHAEL | Director | Sale | 4,307 | — | — |
| 2022-04-01 | STRAUGHEN, MICHAEL | Director | Buy | 4,307 | — | — |
| 2022-04-01 | STRAUGHEN, MICHAEL | Director | Sale | 1,982 | $32.43 | $64276.26 |
| 2022-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Buy | 5,485 | — | — |
| 2022-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Sale | 4,307 | — | — |
| 2022-04-01 | KLINGENSMITH, HARVEY ROBERT | Director | Buy | 4,307 | — | — |
| 2022-04-01 | CARNES, MARTHA Z. | Director | Buy | 5,485 | — | — |
| 2022-04-01 | CARNES, MARTHA Z. | Director | Sale | 4,307 | — | — |
| 2022-04-01 | CARNES, MARTHA Z. | Director | Buy | 4,307 | — | — |
| 2022-04-01 | BARNETT, GREGORY BARRY | Director | Sale | 4,307 | — | — |
| 2022-04-01 | BARNETT, GREGORY BARRY | Director | Buy | 4,307 | — | — |
| 2022-03-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 110 | — | — |
| 2022-03-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 110 | — | — |
| 2022-03-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 50 | $27.51 | $1375.50 |
| 2022-03-01 | DANIELS, KEVIN | CAO & Treasurer | Sale | 120 | — | — |
| 2022-03-01 | DANIELS, KEVIN | CAO & Treasurer | Buy | 120 | — | — |
| 2022-03-01 | DANIELS, KEVIN | CAO & Treasurer | Sale | 54 | $27.51 | $1485.54 |
| 2022-02-17 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 17,588 | — | — |
| 2022-02-17 | SCHREFFLER, GWENDOLYN | SVP | Buy | 17,588 | — | — |
| 2022-02-17 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Buy | 43,236 | — | — |
| 2022-02-17 | DANIELS, KEVIN | CAO & Treasurer | Buy | 9,500 | — | — |
| 2022-02-17 | BRUNO, LAWRENCE | Director, Chairman and CEO | Buy | 127,424 | — | — |
| 2021-12-31 | SCHREFFLER, GWENDOLYN | SVP | Sale | 4,700 | — | — |
| 2021-12-31 | SCHREFFLER, GWENDOLYN | SVP | Buy | 4,700 | — | — |
| 2021-12-31 | SCHREFFLER, GWENDOLYN | SVP | Sale | 1,850 | $22.31 | $41273.50 |
| 2021-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Sale | 23,529 | — | — |
| 2021-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Buy | 23,529 | — | — |
| 2021-12-31 | HILL, CHRISTOPHER SCOTT | SVP & CFO | Sale | 9,259 | $22.31 | $206568.29 |
| 2021-12-31 | DANIELS, KEVIN | CAO & Treasurer | Sale | 3,800 | — | — |
| 2021-12-31 | DANIELS, KEVIN | CAO & Treasurer | Buy | 3,800 | — | — |
| 2021-12-31 | DANIELS, KEVIN | CAO & Treasurer | Sale | 1,496 | $22.31 | $33375.76 |
| 2021-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Sale | 46,233 | — | — |
| 2021-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Buy | 46,233 | — | — |
| 2021-12-31 | BRUNO, LAWRENCE | Director, Chairman and CEO | Sale | 18,193 | $22.31 | $405885.83 |
| 2021-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 160 | — | — |
| 2021-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Buy | 160 | — | — |
| 2021-12-01 | TATTOLI, MARK DAMIAN | SVP, Gen Counsel & Secretary | Sale | 39 | $22.41 | $873.99 |
Frequently asked questions
Are CLB insiders buying or selling?
Over the transactions on record, CLB insiders have been net sellers, with about $1.85M in stock sold across 50 sales, against 1 open-market purchase.
Does insider selling at CLB mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which CLB insiders are selling the most?
Recent selling is concentrated in a few names. BRUNO, LAWRENCE accounts for the largest share on record, with about $1.13M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.