Core Laboratories Inc. /DE/ (CLB)
Data as of , from SEC Form 4 filings.
Net insider buying (90d)Watch CLB
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Start 7-day demoLatest CLB insider trades
- Lawrence Bruno - OfficerOpen-market purchase$54K
Mark Damian Tattoli - OfficerTax withholding / forfeiture$3K- Mark Damian Tattoli
About Core Laboratories Inc. /DE/ (CLB)
Core Laboratories Inc. /DE/ is an SEC registrant, filing under CIK 0001958086, classified as oil and gas field services, nec. We track it alongside the rest of the Energy sector.
CLB Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 5,000 | $54K |
| Option exercise | 10 | 3,280 | |
| Tax withholding / forfeiture | 5 | 672 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
CLB insider transactions (Form 4)
8430 Form 4 filings on record, the earliest from Oct 3, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 276 | $9.76 | $3K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 700 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 700 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 99 | $9.76 | $966 | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Lawrence Bruno - Officer | Open-market purchase | Common Stock | 5,000 | $10.78 | $54K | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 108 | $10.64 | $1K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 240 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 90 | $10.64 | $958 | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 200 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 240 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 200 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 99 | $10.64 | $1K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 97 | $14.07 | $1K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Katherine Murray | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Katherine Murray | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
| Katherine Murray | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Curt Anastasio | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Curt Anastasio | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
| Curt Anastasio | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Harvey Robert Klingensmith | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Harvey Robert Klingensmith | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Harvey Robert Klingensmith | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
 Kwaku Temeng | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Kwaku Temeng | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
| Kwaku Temeng | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Robert F. Martinovich | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Robert F. Martinovich | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
| Robert F. Martinovich | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Martha Z. Carnes | Option exercise | Common Stock | 8,069 | $0.00 | - | |
| Martha Z. Carnes | Grant or award | Restricted Shares | 7,895 | $0.00 | - | |
| Martha Z. Carnes | Option exercise | Restricted Shares | 8,069 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Grant or award | Performance Shares | 33,490 | $0.00 | - | |
| Gwendolyn Gresham - Officer | Grant or award | Performance Shares | 33,490 | $0.00 | - | |
| Christopher Scott Hill - Officer | Grant or award | Performance Shares | 70,008 | $0.00 | - | |
| Lawrence Bruno - Officer | Grant or award | Performance Shares | 204,340 | $0.00 | - | |
| Sow Hang Teo - Officer | Grant or award | Performance Shares | 7,526 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 14,310 | $16.03 | $229K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 24,952 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Performance Shares | 24,952 | $0.00 | - | |
| Gwendolyn Gresham - Officer | Tax withholding / forfeiture | Common Stock | 19,301 | $16.03 | $309K | |
| Gwendolyn Gresham - Officer | Option exercise | Common Stock | 24,952 | $0.00 | - | |
| Gwendolyn Gresham - Officer | Option exercise | Performance Shares | 24,952 | $0.00 | - | |
| Christopher Scott Hill - Officer | Tax withholding / forfeiture | Common Stock | 32,152 | $16.03 | $515K | |
| Christopher Scott Hill - Officer | Option exercise | Common Stock | 61,417 | $0.00 | - | |
| Christopher Scott Hill - Officer | Option exercise | Performance Shares | 61,417 | $0.00 | - | |
| Lawrence Bruno - Officer | Tax withholding / forfeiture | Common Stock | 112,681 | $16.03 | $1.81M | |
| Lawrence Bruno - Officer | Option exercise | Common Stock | 180,722 | $0.00 | - | |
| Lawrence Bruno - Officer | Option exercise | Performance Shares | 180,722 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 340 | $15.39 | $5K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 864 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 864 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 99 | $12.58 | $1K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 276 | $12.58 | $3K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 700 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 700 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 90 | $10.53 | $948 | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 200 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 108 | $10.53 | $1K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 240 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 200 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 240 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 99 | $10.53 | $1K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Curt Anastasio | Option exercise | Common Stock | 9,317 | $0.00 | - | |
| Curt Anastasio | Grant or award | Restricted Shares | 8,069 | $0.00 | - | |
| Curt Anastasio | Option exercise | Restricted Shares | 9,317 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 227 | $20.42 | $5K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 576 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 576 | $0.00 | - | |
| Sow Hang Teo - Officer | Tax withholding / forfeiture | Common Stock | 99 | $19.21 | $2K | |
| Sow Hang Teo - Officer | Option exercise | Common Stock | 250 | $0.00 | - | |
| Sow Hang Teo - Officer | Option exercise | Restricted Shares | 250 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Tax withholding / forfeiture | Common Stock | 276 | $19.21 | $5K | |
| Mark Damian Tattoli - Officer | Option exercise | Common Stock | 700 | $0.00 | - | |
| Mark Damian Tattoli - Officer | Option exercise | Restricted Shares | 700 | $0.00 | - |
Item 5.02, 9.01
Item 2.02, 7.01, 9.01
Item 5.07
Item 2.02, 7.01, 9.01
CLB insider trading FAQ
What is the latest insider trade for CLB?
Core Laboratories Inc. /DE/ (CLB) had 5 insider filings in the last 90 days, with the most recent on 2026-10-05. The full record for CLB runs to 30 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CLB stock?
1 insider purchase of CLB was filed in the last 90 days, totaling $54K.
How many insiders are selling CLB stock?
No insider sales of CLB were filed in the last 90 days.
Where can I see CLB SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CLB Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Energy companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Mark Damian Tattoli view on EDGAR
- - Sow Hang Teo view on EDGAR
- - Lawrence Bruno view on EDGAR
- - Sow Hang Teo view on EDGAR
- - Mark Damian Tattoli view on EDGAR
- - Mark Damian Tattoli view on EDGAR
- - Katherine Murray view on EDGAR
- - Curt Anastasio view on EDGAR
- - Harvey Robert Klingensmith view on EDGAR
Related companies with recent insider activity
Learn more
- How to read insider buying signals
- What an open-market purchase by an insider can and cannot tell you.
- Insider activity in Energy
- Where CLB's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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