(CLB)

Role: SVP & CFO
Signature: /s/ Mark Tattoli, Attorney-in-Fact
Issuer symbol: CLB
Transactions as of: 31 Dec 2023
Net transactions value: -$244,944
Form type: 4
Filing time: 03 Jan 2024, 17:43:16 UTC
Previous filing: 21 Feb 2023
Next filing: 15 Feb 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership
transaction	CLB	Common Stock	Tax liability	$244,944	-13,870	-16%	$17.66	72,374	31 Dec 2023	Direct
transaction	CLB	Common Stock	Options Exercise	$0	+36,072	+72%	$0.000000	86,244	31 Dec 2023	Direct
holding	CLB	Common Stock						59	31 Dec 2023	401(k) Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CLB	Performance Shares	Options Exercise	$0	-36,072	-100%	$0.000000^*	0	31 Dec 2023	Common Stock	36,072	$0.000000	Direct	F1

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

Explanation of Responses:

Id	Content
F1	These shares were awarded as restricted performance shares in February 2021, as disclosed in the Reporting Person's Form 4 filing on February 19, 2021. The Company finished in the 81st percentile of return on invested capital among the Bloomberg Peer Group at the conclusion of the performance period on December 31, 2023. Excess shares that could vest above the 75th percentile are subject to an absolute total shareholder return modifier, which was negative over the relevant performance period, thereby reducing the number of such shares eligible to vest by one-half. Therefore, the performance criteria and requirements for vesting have been satisfied at 106.25% of the target award level, and such number of shares vested on December 31, 2023.

Content

These shares were awarded as restricted performance shares in February 2021, as disclosed in the Reporting Person's Form 4 filing on February 19, 2021. The Company finished in the 81st percentile of return on invested capital among the Bloomberg Peer Group at the conclusion of the performance period on December 31, 2023. Excess shares that could vest above the 75th percentile are subject to an absolute total shareholder return modifier, which was negative over the relevant performance period, thereby reducing the number of such shares eligible to vest by one-half. Therefore, the performance criteria and requirements for vesting have been satisfied at 106.25% of the target award level, and such number of shares vested on December 31, 2023.