(CLB)

Role: SVP
Signature: /s/ Mark Tattoli, Attorney-in-Fact
Stock symbol: CLB
Transactions as of: Dec 31, 2023
Transactions value $: -$197,701
Form type: 4/A
Date filed: 1/8/2024, 02:47 PM
Date Of Original Report: Jan 4, 2023
Previous filing: Feb 21, 2023
Next filing: Feb 15, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CLB	Common Stock	Tax liability	-$102K	-5.78K	-19.42%	$17.66	24K	Dec 31, 2023	Direct	F1
transaction	CLB	Common Stock	Tax liability	-$95.7K	-4.72K	-23.87%	$20.27	15.1K	Dec 31, 2022	Direct	F2
transaction	CLB	Common Stock	Options Exercise	$0	+12K	+154.18%	$0.00	19.8K	Dec 31, 2022	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The original Form 4, filed on January 3, 2024, is being amended by this Form 4 amendment to correct an administrative error of the issuer, whereupon the number of shares withheld to satisfy tax withholding obligations upon vesting of certain restricted performance shares was misreported as 5,643 shares. The corrected transaction reflects an increase of 132 shares withheld by the issuer as a result such vesting and a corresponding reduction in the number of shares beneficially owned by the reporting person.
F2	The original Form 4, filed on January 4, 2023, is being amended by this Form 4 amendment solely to correct an administrative error in transaction codes used by the issuer, which misreported that 12,000 shares of Common Stock were Disposed of (D) when in fact such shares were Acquired (A) upon vesting of restricted performance shares on December 31, 2022, and subsequently, 4,722 shares of Common Stock were Acquired (A) when in fact such shares were Disposed of (D) to satisfy tax withholding obligations incident to such vesting. The number of shares beneficially owned by the reporting person remains the same after correcting for the error in transaction codes.

Content

The original Form 4, filed on January 3, 2024, is being amended by this Form 4 amendment to correct an administrative error of the issuer, whereupon the number of shares withheld to satisfy tax withholding obligations upon vesting of certain restricted performance shares was misreported as 5,643 shares. The corrected transaction reflects an increase of 132 shares withheld by the issuer as a result such vesting and a corresponding reduction in the number of shares beneficially owned by the reporting person.

The original Form 4, filed on January 4, 2023, is being amended by this Form 4 amendment solely to correct an administrative error in transaction codes used by the issuer, which misreported that 12,000 shares of Common Stock were Disposed of (D) when in fact such shares were Acquired (A) upon vesting of restricted performance shares on December 31, 2022, and subsequently, 4,722 shares of Common Stock were Acquired (A) when in fact such shares were Disposed of (D) to satisfy tax withholding obligations incident to such vesting. The number of shares beneficially owned by the reporting person remains the same after correcting for the error in transaction codes.