(CLB)

Reporting relationship: Director
Issuer ticker: CLB
Reported as of: 01 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Apr 2026, 19:47:52 UTC
Prior SEC filing: 07 Jan 2026
Next SEC filing: 07 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark Tattoli, Attorney-in-Fact

Key filing fact

Curt Anastasio filed Form 4 for Core Laboratories Inc. /DE/ (CLB) on 07 Apr 2026.

Key facts

This page summarizes Curt Anastasio's Form 4 filing for Core Laboratories Inc. /DE/ (CLB).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 07 Apr 2026, 19:47.

Change

Previous filing in this sequence was filed on 07 Jan 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001032097 Primary reporting owner

ANASTASIO CURT

Relationship: Director
Address: 6316 WINDFERN ROAD, HOUSTON
Signature: /s/ Mark Tattoli, Attorney-in-Fact
Signature date: 07 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CLB transaction

Common Stock

Options Exercise

Transaction value
Shares: +8,069
Change %: +51%
Price: $0.000000^*
Shares after: 23,805
Date: 01 Apr 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CLB transaction Derivative

Restricted Shares

Award

Transaction value
Shares: +7,895
Change %
Price: $0.000000^*
Shares after: 7,895
Date: 01 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,895
Exercise price: $0.000000
Footnotes: F1

CLB transaction Derivative

Restricted Shares

Options Exercise

Transaction value
Shares: -8,069
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 01 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,069
Exercise price: $0.000000
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Restricted Shares will vest, without performance criteria, at the end of a one-year vesting period on April 1, 2027, subject to the terms of issuance. Such shares remain subject to a deferral election by the Reporting Person in accordance with Treasury Regulation 1.409A-2, and the vested portion thereof will be distributed as shares of common stock following the Reporting Person's separation of service from the Board.

Footnote F2

The Restricted Shares vested at the end of a one-year vesting period ending April 1, 2026.