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CLB · Current Report (Form 8-K) · Filed August 25, 2026

Core Laboratories Inc — Current Report (Form 8-K)

Form
8-K
Filed
August 25, 2026
Period
Aug 19, 2026
Ticker
CLB
Accession
0001193125-26-365271
Boardroom Alpha · Filing insights

Core Laboratories director Kwaku Temeng resigns over governance and strategy disagreements, effective Oct 1, 2026.

About Core Laboratories Inc
Market cap
$567M
1Y TSR
+11.8%
3Y TSR
−21.4%
Board grade
C-
Sector
Energy
CEO
Lawrence Bruno
Last annual meeting: May 12, 2026 · View full Core Laboratories Inc profile →
8-K

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 19, 2026

CORE LABORATORIES INC.

(Exact name of registrant as specified in its charter)

 

Delaware

001-41695

Not Applicable

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

 

 

 

6316 Windfern Road

Houston, TX

77040

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: (713) 328-2673

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Title of each class

 

Trading

Symbol(s)

 

Name of each exchange on which registered

Common Stock (par value $0.01)

 

CLB

 

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 


 

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangement of Certain Officers.

On August 19, 2026, Kwaku Temeng verbally notified the Board of Directors of Core Laboratories Inc. (the “Company”) of his intention to resign as a director of the Company effective October 1, 2026. Subsequently, on August 25, 2026, Mr. Temeng confirmed his resignation by letter addressed to the Board of Directors. Mr. Temeng serves as Chairman of the Nominating Committee and as a member of the Compensation Committee.

As stated in his letter, Mr. Temeng’s resignation was due to a disagreement with the Board of Directors regarding the strategic direction of the Company and certain governance practices.

The Board of Directors believes that Mr. Temeng’s primary disagreement involves the manner in which the Company is conducting succession planning within the organization, a process supported by a majority of the members of the Board. With respect to strategic direction, the Board of Directors believes Mr. Temeng has concerns with the Company’s research priorities.

A copy of Mr. Temeng’s resignation letter to the Board of Directors is filed as Exhibit 17.1 to this Form 8-K. The Company provided Mr. Temeng with a copy of this Form 8-K and an opportunity to state whether he agrees with the statements herein and, if not, the respects in which he disagrees.

Throughout his more than five years of service on the Board, the Company has appreciated Mr. Temeng’s contributions, commitment and leadership.

Item 9.01 Financial Statements and Exhibits.

(d)

 

Exhibits

17.1 Letter dated August 25, 2026 from Mr. Temeng to the Board of Directors of Core Laboratories Inc.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

 

 


 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

 

 

 

 

 

 

 

Core Laboratories Inc.

 

 

 

 

 

 

 

Dated: August 25, 2026

 

By

 

/s/ Mark D. Tattoli

 

 

 

 

 

 

Mark D. Tattoli

 

 

 

 

 

 

Senior Vice President and General Counsel

 

 

 

 


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Reference

Frequently asked questions

When did Core Laboratories Inc file this 8-K?
Core Laboratories Inc (CLB) filed this Current Report (Form 8-K) with the SEC on August 25, 2026. The accession number assigned by EDGAR is 0001193125-26-365271.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Core Laboratories director Kwaku Temeng resigns over governance and strategy disagreements, effective Oct 1, 2026. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Core Laboratories Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Core Laboratories Inc has filed under CIK 1958086, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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