GrafTech International (NYSE: EAF) announces December 31, 2025 board resignations

Rhea-AI Filing Summary

GrafTech International Ltd. reported that two members of its Board of Directors, Michel Dumas and Anthony Taccone, have notified the company that they will resign from the board effective at the close of business on December 31, 2025. The company states that neither director’s decision to resign is due to any disagreement with GrafTech regarding its operations, policies, or practices. This represents a planned change in board composition rather than a dispute-driven departure.

Insights

Corporate governance analyst

GrafTech announces two non-dispute director resignations effective December 31, 2025.

GrafTech International Ltd. disclosed that Michel Dumas and Anthony Taccone will resign from its Board of Directors effective at the close of business on December 31, 2025. The company explicitly states that these resignations are not the result of any disagreement on operations, policies, or practices. That framing signals an orderly governance change rather than a conflict-driven shake-up.

Simultaneous departures of two directors can modestly shift board dynamics, including committee compositions and the mix of skills and experience. However, the absence of stated disagreement and the clear effective date suggest a planned transition. Subsequent company disclosures may clarify how the vacant board seats will be filled and whether the changes affect strategic oversight or board structure.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Understanding 8-K Material Events →

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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): November 25, 2025

GRAFTECH INTERNATIONAL LTD.

(Exact Name of Registrant as Specified in its Charter)

Delaware			1-13888			27-2496053
(State or Other Jurisdiction of Incorporation)			(Commission File Number)			(IRS Employer Identification No)

982 Keynote Circle

Brooklyn Heights, OH 44131

(Address of Principal Executive Offices) (Zip Code)

(216) 676-2000

(Registrant's telephone number, including area code)

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:

   

☐			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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common stock, $0.01 par value per share			EAF			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 Arrangements of Certain Officers.

On November 25, 2025, each of Michel Dumas and Anthony Taccone informed GrafTech International Ltd. (the “Company”) that he was resigning from the Board of Directors of the Company effective as of the close of business on December 31, 2025. Neither Mr. Dumas' nor Mr. Taccone's decision to resign is a result of any disagreement with the Company on any matter relating to the Company’s operations, policies, or practices.

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.

						GRAFTECH INTERNATIONAL LTD.
Date:			December 2, 2025			By:			/s/ Rory O'Donnell
									Rory O'Donnell
									Chief Financial Officer and Senior Vice President

FAQ

What board changes did GrafTech International Ltd. (EAF) announce?

GrafTech International Ltd. reported that directors Michel Dumas and Anthony Taccone have each decided to resign from the company’s Board of Directors effective at the close of business on December 31, 2025.

When will the GrafTech (EAF) director resignations become effective?

The resignations of Michel Dumas and Anthony Taccone from the GrafTech Board of Directors will become effective as of the close of business on December 31, 2025.

Did the resigning GrafTech (EAF) directors cite any disagreements with the company?

No. GrafTech states that neither Michel Dumas’ nor Anthony Taccone’s decision to resign resulted from any disagreement with the company on its operations, policies, or practices.

Does the 8-K say why GrafTech (EAF) directors Dumas and Taccone resigned?

The disclosure notes only that Michel Dumas and Anthony Taccone informed GrafTech of their decisions to resign, and clarifies that their decisions are not due to any disagreement with the company; no additional reasons are provided.

Who signed the GrafTech (EAF) current report about the board resignations?

The report was signed on behalf of GrafTech International Ltd. by Rory O'Donnell, who is identified as the company’s Chief Financial Officer and Senior Vice President.