James Hoffman joins Kaiser Aluminum (NASDAQ: KALU) board, brings 43 years metals experience

Rhea-AI Filing Summary

Kaiser Aluminum Corporation appointed James D. Hoffman, former CEO of Reliance, Inc., to its board of directors effective September 18, 2025. He will serve as a Class II director with a term expiring at the 2026 annual meeting of stockholders.

Hoffman brings more than 43 years of metals distribution, fabrication and service center experience, including extensive work in carbon steels, alloys, aluminum and stainless products, and about three decades in strategy development and acquisitions. He will serve on the board’s compensation and nominating and corporate governance committees and receive standard non-employee director compensation, prorated for his partial-year service.

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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): September 18, 2025

KAISER ALUMINUM CORPORATION

(Exact name of Registrant as Specified in Its Charter)

Delaware			1-09447	94-3030279
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
1550 West McEwen Drive Suite 500
Franklin, Tennessee				37067
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: (629) 252-7040

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, par value $0.01 per share		KALU		Nasdaq Global Select Market

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 September 18, 2025, the board of directors (the “Board”) of Kaiser Aluminum Corporation (the "Company") appointed James D. Hoffman as a director. Mr. Hoffman, 67, served as Chief Executive Officer of Reliance, Inc., formerly known as Reliance Steel and Aluminum Co., the largest metals service center company in North America, from January 2019 to December 2022 and as President from January 2019 to January 2021. Mr. Hoffman also served on the board of directors of Reliance, Inc. from October 2019 to December 2022. Mr. Hoffman holds a Bachelor of Science degree in Advertising/Marketing from West Virginia University.

The Board appointed Mr. Hoffman as a director because of his extensive metals and distribution industry and operational experience. Mr. Hoffman has over 43 years of operational and mergers and acquisition experience in metals distribution, fabrication, and service center industries, specializing in carbon steels, alloys, aluminum and stainless product, as well as approximately three decades of executive experience in strategy development, acquisitions and converting strategic plans into tactical initiatives for both domestic and international companies. Mr. Hoffman will serve as a Class II director with a term expiring at the Company’s 2026 annual meeting of stockholders and will serve on the Board’s compensation and nominating and corporate governance committees. Mr. Hoffman will receive the standard compensation paid to non-employee directors. Mr. Hoffman’s annual cash retainer and annual grant of restricted stock for service until the 2026 annual meeting of stockholders will be prorated to reflect service on the Board of less than one full year.

A copy of the press release announcing the appointment of Mr. Hoffman is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number		Description
99.1		Press release dated September 18, 2025.
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.

			KAISER ALUMINUM CORPORATION (Registrant)
Date:	September 19, 2025	By:	/s/ John M. Donnan
			John M. Donnan Executive Vice President, Chief Administrative Officer and General Counsel

FAQ

What did Kaiser Aluminum (KALU) announce in this 8-K filing?

Kaiser Aluminum announced the appointment of James D. Hoffman to its board of directors. He joins as a Class II director, with his term running until the 2026 annual meeting, and will serve on the compensation and nominating and corporate governance committees.

Who is James D. Hoffman, newly appointed to Kaiser Aluminum’s board?

James D. Hoffman is the former Chief Executive Officer of Reliance, Inc., a major North American metals service center company. He has over 43 years of operational, mergers and acquisition, and metals distribution experience across carbon steels, alloys, aluminum and stainless products.

What board role will James D. Hoffman hold at Kaiser Aluminum (KALU)?

James D. Hoffman will serve as a Class II director on Kaiser Aluminum’s board, with his term expiring at the 2026 annual meeting. He will also sit on the compensation committee and the nominating and corporate governance committee, contributing his metals and distribution industry expertise.

How long will James D. Hoffman’s term last on Kaiser Aluminum’s board?

James D. Hoffman will serve as a Class II director with a term expiring at Kaiser Aluminum’s 2026 annual meeting of stockholders. His initial compensation, including cash retainer and restricted stock grant, will be prorated for his period of service before that meeting.

What compensation will James D. Hoffman receive as a Kaiser Aluminum director?

James D. Hoffman will receive Kaiser Aluminum’s standard compensation for non-employee directors. His annual cash retainer and annual restricted stock grant, covering service until the 2026 annual meeting, will be prorated because he is joining the board partway through the director service year.

Why did Kaiser Aluminum’s board appoint James D. Hoffman?

The board appointed James D. Hoffman because of his extensive metals and distribution industry and operational experience. He brings more than 43 years in metals distribution, fabrication and service centers, plus about three decades in strategy development, acquisitions and executing strategic plans domestically and internationally.