Core Laboratories Inc. /DE/ SEC filings CLB
Core Laboratories Inc. /DE/ has 186 filings in SEC EDGAR's recent list, going back to Jan 17, 2023. Its latest annual report, Form ARS, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | Aug 4, 2026 | Jul 31, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 1, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| 4 | Insider transaction | Apr 8, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 2, 2025 | Dec 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2025 | — |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 29, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 5, 2025 | — |
| 3 | Initial insider ownership | May 30, 2025 | May 21, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Feb 13, 2025 | Feb 13, 2025 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Dec 2, 2024 | Dec 1, 2024 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 3, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | May 2, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 2, 2024 | May 1, 2024 |
| 4 | Insider transaction | Apr 11, 2024 | Apr 9, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 3 | Initial insider ownership | Mar 27, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 15, 2024 | Feb 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jan 22, 2024 | — |
| 4/A | Filing | Jan 8, 2024 | Dec 31, 2023 |
| 4/A | Filing | Jan 8, 2024 | Dec 31, 2023 |
| 4/A | Filing | Jan 8, 2024 | Dec 31, 2023 |
| 4/A | Filing | Jan 8, 2024 | Dec 31, 2023 |
| 4/A | Filing | Jan 8, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Dec 4, 2023 | Dec 1, 2023 |
| 4 | Insider transaction | Dec 4, 2023 | Dec 1, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Oct 1, 2023 |
| 4 | Insider transaction | Aug 2, 2023 | Aug 1, 2023 |
| 3 | Initial insider ownership | Jul 7, 2023 | Jun 28, 2023 |
| SC 13G | Ownership over 5% (passive) | Jun 9, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jun 8, 2023 | — |
| 4 | Insider transaction | May 2, 2023 | May 1, 2023 |
Showing 104 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Oil & Gas Field Services, NEC (SIC 1389)
- Listed as
- CLB (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1958086
- Former names
- Core Laboratories Luxembourg S.A. (until Feb 28, 2023)
Other Oil & Gas Field Services, NEC companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.