| $68M | ||
| $63M | ||
| $55M | ||
| $52M | ||
| $50M | ||
| $47M |
Buys | $0 | 0 | – |
Sells | $0 | 0 | – |
Core Laboratories N.V. provides reservoir description and production enhancement services and products to the oil and gas industry in the United States, Canada, and internationally. It operates through Reservoir Description and Production Enhancement segments. The Reservoir Description segment includes the characterization of petroleum reservoir rock, reservoir fluid, and gas samples to enhance production and improve recovery of oil and gas from its clients' reservoirs. It offers laboratory-based analytical and field services to characterize properties of crude oil and oil delivered products; and proprietary and joint industry studies. The Production Enhancement segment provides services and products relating to reservoir well completions, perforations, stimulations, and production. It offers integrated diagnostic services to evaluate and monitor the effectiveness of well completions and to develop solutions to improve the effectiveness of enhanced oil recovery projects. In addition, the company markets and sells its products through a combination of sales representatives, technical seminars, trade shows, and print advertising, as well as through distributors. It operates approximately in 50 countries. The company was founded in 1936 and is based in Amstelveen, the Netherlands.
Over the last 12 months, insiders at Core Laboratories N.V. have bought $0 and sold $0 worth of Core Laboratories N.V. stock.
On average, over the past 5 years, insiders at Core Laboratories N.V. have bought $0 and sold $0 worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 600 shares for transaction amount of $10,242 was made by Sodderland Jan Willem (director) on 2020‑05‑07.
| 2020-05-07 | Sodderland Jan Willem | director | 600 0.0014% | $17.07 | $10,242 | +45.78% | ||
| 2020-04-01 | GOLDMAN SACHS GROUP INC | 10 percent owner | 676 0.0015% | $9.34 | $6,313 | +128.12% | ||
| 2020-02-03 | Bruno Lawrence | President & COO | 3,000 0.0067% | $34.86 | $104,579 | -40.45% | ||
| 2020-01-02 | Sale | Elvig Mark F | VP,Counsel & Secretary | 600 0.0013% | $37.93 | $22,759 | -45.69% | |
| 2019-08-14 | Barnett Gregory Barry | director | 2,000 0.0045% | $38.00 | $76,000 | -11.01% | ||
| 2019-08-13 | Barnett Gregory Barry | director | 1,000 0.0022% | $40.00 | $40,000 | -14.89% | ||
| 2019-03-11 | Sale | Daniels Kevin | CAO & Treasurer | 428 0.0009% | $66.25 | $28,355 | -29.39% | |
| 2018-10-29 | Sodderland Jan Willem | director | 200 0.0005% | $85.76 | $17,152 | -28.99% | ||
| 2018-08-14 | Sale | Daniels Kevin | CAO & Treasurer | 73 0.0002% | $112.63 | $8,222 | -38.89% | |
| 2017-02-01 | Straughen Michael | director | 106 0.0002% | $118.65 | $12,577 | -10.54% | ||
| 2017-01-30 | Carnes Martha Z. | director | 200 0.0005% | $115.20 | $23,040 | -8.80% | ||
| 2016-02-02 | Sodderland Jan Willem | director | 300 0.0007% | $93.90 | $28,170 | +25.44% | ||
| 2015-07-24 | Sodderland Jan Willem | director | 300 0.0007% | $106.20 | $31,860 | +9.79% | ||
| 2015-05-12 | Sale | KEARNEY MICHAEL C | director | 1,000 0.0023% | $128.52 | $128,520 | -11.40% | |
| 2015-02-03 | van Kempen Margaret Ann | director | 250 0.0006% | $102.07 | $25,519 | +7.30% | ||
| 2015-02-02 | Sodderland Jan Willem | director | 300 0.0007% | $94.54 | $28,362 | +15.84% | ||
| 2014-11-17 | Sale | Elvig Mark F | VP, Counsel & Secretary | 1,000 0.0023% | $138.03 | $138,030 | -16.72% | |
| 2014-11-14 | van Geuns Lucia | director | 95 0.0002% | $143.98 | $13,678 | -17.26% | ||
| 2014-08-04 | Dunlap Charles L | director | 500 0.0011% | $147.59 | $73,795 | -18.55% | ||
| 2014-07-30 | Sodderland Jan Willem | director | 200 0.0005% | $147.88 | $29,577 | -18.02% |
| GOLDMAN SACHS GROUP INC | 10 percent owner | 4640900 9.9668% | $73.19M | 1 | 0 | +128.12% |
| DEMSHUR DAVID M | Chief Executive Officer | 181962 0.3908% | $2.87M | 2 | 13 | +9.5% |
| DAVIS MONTY L | Chief Operating Officer | 134410 0.2887% | $2.12M | 2 | 13 | +9.5% |
| DENSON JOHN D | VP, Counsel & Secretary | 110332 0.237% | $1.74M | 0 | 8 | |
| BERGMARK RICHARD L | EVP & CFO | 54083 0.1161% | $852,888.91 | 3 | 12 | +0.73% |
| Perna Joseph R | director | 40000 0.0859% | $630,800.00 | 0 | 6 | |
| Miller Charles Brigham | CAO & Treasurer | 37174 0.0798% | $586,233.98 | 0 | 10 | |
| Ogren D John | director | 34000 0.073% | $536,180.00 | 0 | 4 | |
| Barnett Gregory Barry | director | 13000 0.0279% | $205,010.00 | 2 | 0 | <0.0001% |
| KEARNEY MICHAEL C | director | 11964 0.0257% | $188,672.28 | 1 | 7 | +14.54% |
| JOYCE RENE R | director | 11823 0.0254% | $186,448.71 | 0 | 6 | |
| Elvig Mark F | VP,Counsel & Secretary | 11035 0.0237% | $174,021.95 | 7 | 4 | +31.76% |
| Bruno Lawrence | President & COO | 10799 0.0232% | $170,300.23 | 1 | 0 | <0.0001% |
| Sodderland Jan Willem | director | 7852 0.0169% | $123,826.04 | 7 | 0 | +4.26% |
| VRIESENDORP ALEXANDER | director | 943 0.002% | $14,871.11 | 0 | 3 | |
| Dunlap Charles L | director | 800 0.0017% | $12,616.00 | 2 | 0 | <0.0001% |
| van Kempen Margaret Ann | director | 350 0.0008% | $5,519.50 | 2 | 0 | <0.0001% |
| Daniels Kevin | CAO & Treasurer | 352 0.0008% | $5,551.04 | 0 | 2 | |
| Carnes Martha Z. | director | 200 0.0004% | $3,154.00 | 1 | 0 | <0.0001% |
| van Geuns Lucia | director | 95 0.0002% | $1,498.15 | 1 | 0 | <0.0001% |
| Straughen Michael | director | 106 0.0002% | $1,671.62 | 1 | 0 | <0.0001% |
| Schouten Jacobus | director | 0 0% | $0 | 0 | 5 |
$229,010,235 | 161 | 11.10% | $1.44B | |
$33,003,770 | 97 | 18.94% | $149.11M | |
$9,987,476 | 89 | -9.97% | $531.42M | |
$15,138,279 | 74 | 45.68% | $1.1B | |
$120,992,940 | 54 | -9.91% | $1.15B | |
$190,097,196 | 48 | 26.90% | $1.3B | |
$20,202,841 | 37 | 12.84% | $617.71M | |
$23,071,382 | 35 | 7.22% | $393.29M | |
Core Laboratories N.V. (CLB) | $1,990,846 | 33 | 8.52% | $734.3M |
$971,260 | 31 | 33.32% | $370.99M | |
$13,431,558 | 20 | -44.38% | $162.82M | |
$4,641,128 | 17 | 32.42% | $715.85M | |
$1,109,417 | 12 | 16.36% | $1.25B | |
$7,863,663 | 10 | -28.31% | $1.69B | |
$1,379,428 | 10 | 22.07% | $447.33M | |
$1,511,006 | 10 | -5.37% | $147.73M | |
$2,532,632 | 7 | -9.40% | $1.34B | |
$1,094,678 | 6 | -3.45% | $1.47B | |
$627,169 | 5 | 4.47% | $1.75B |
| Increased Positions | 81 | +31.27% | 3M | +5.73% |
| Decreased Positions | 116 | -44.79% | 5M | -9.48% |
| New Positions | 29 | New | 1M | New |
| Sold Out Positions | 36 | Sold Out | 2M | Sold Out |
| Total Postitions | 224 | -13.51% | 50M | -3.75% |
| Ariel Investments, Llc | $233,462.00 | 29.31% | 13.77M | +797,105 | +6.14% | 2025-09-30 |
| Blackrock, Inc. | $123,021.00 | 15.44% | 7.26M | -74,064 | -1.01% | 2025-09-30 |
| Disciplined Growth Investors Inc /Mn | $101,189.00 | 12.7% | 5.97M | +528,976 | +9.72% | 2025-09-30 |
| Earnest Partners Llc | $58,099.00 | 7.29% | 3.43M | -175,370 | -4.87% | 2025-09-30 |
| Vanguard Group Inc | $51,653.00 | 6.48% | 3.05M | -1M | -31.96% | 2025-09-30 |
| State Street Corp | $33,509.00 | 4.21% | 1.98M | -185,867 | -8.59% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $18,833.00 | 2.36% | 1.11M | -58,392 | -4.99% | 2025-09-30 |
| Geode Capital Management, Llc | $18,754.00 | 2.35% | 1.11M | -8,122 | -0.73% | 2025-09-30 |
| T. Rowe Price Investment Management, Inc. | $15,393.00 | 1.93% | 908,158 | +33,117 | +3.79% | 2025-09-30 |
| Fisher Asset Management, Llc | $13,977.00 | 1.75% | 824,579 | -43,147 | -4.97% | 2025-09-30 |