Kaiser Aluminum Files 8-K Report

Ticker: KALU · Form: 8-K · Filed: Dec 19, 2025 · CIK: 811596

Sentiment: neutral

Topics: sec-filing, 8-k

Related Tickers: KALU

TL;DR

Kaiser Aluminum filed a routine 8-K on 12/18/25. No major news yet.

AI Summary

On December 18, 2025, Kaiser Aluminum Corporation filed an 8-K report. The filing primarily concerns "Other Events" and "Financial Statements and Exhibits," indicating a routine update or disclosure without specifying a particular transaction or event in the provided text.

Why It Matters

This filing signifies a formal disclosure to the SEC, potentially containing important updates for investors regarding the company's operations or financial status.

Risk Assessment

Risk Level: low — The filing appears to be a standard 8-K report without immediate indication of significant negative or positive events.

Key Players & Entities

FAQ

What specific event triggered this 8-K filing?

The provided text indicates the filing is for 'Other Events' and 'Financial Statements and Exhibits' on December 18, 2025, but does not specify the exact event.

What is Kaiser Aluminum Corporation's principal executive office address?

Kaiser Aluminum Corporation's principal executive offices are located at 1550 West McEwen Drive, Suite 500, Franklin, Tennessee 37067.

When was the earliest event reported in this filing?

The earliest event reported in this filing occurred on December 18, 2025.

What is Kaiser Aluminum's state of incorporation?

Kaiser Aluminum Corporation is incorporated in Delaware.

What is the company's IRS Employer Identification Number?

The IRS Employer Identification Number for Kaiser Aluminum Corporation is 94-3030279.

Filing Stats: 723 words · 3 min read · ~2 pages · Grade level 11.3 · Accepted 2025-12-18 19:15:37

Key Financial Figures

Filing Documents

01 Other Events

Item 8.01 Other Events. On December 18, 2025, Kaiser Aluminum Corporation (the "Company"), announced that Hugh (Jack) J. Barger, III has been appointed as the Company's Executive Vice President – Sales and Marketing, effective January 1, 2026, as part of the Company's succession planning and transition of the roles and responsibilities of Blain A. Tiffany, the Company's current Executive Vice President – Sales and Marketing, in connection with his anticipated retirement as part of the transition. The Company intends to enter into a transition letter with Mr. Tiffany. Mr. Barger, age 53, joined the Company in June 2025 as the Company's Senior Vice President – Sales and Marketing and has over 25 years of progressive experience in the metals industry. Prior to joining the Company, Mr. Barger was President of Central Steel & Wire from 2021 to 2024 and previously held the position of Vice President of Sales at Central Steel & Wire. Prior to that Mr. Barger held advancing leadership roles at A.M. Castle & Company. Mr. Barger received a bachelor's degree in Agricultural Education from North Carolina State University and a master's degree from Kent State University. On December 16, 2025, the Company also appointed Thomas H. Robb, age 50, as the Company's Executive Vice President – Manufacturing. Mr. Robb rejoined the Company in August 2024 as the Company's Vice President – Finance before transitioning to Vice President – Finance and Packaging as he assumed responsibility for the Company's Warrick rolling mill in Evansville, Indiana as the facility has been focused on the completion and start-up of its new coating line. He was recently appointed Senior Vice President – Manufacturing. Mr. Robb has an extensive global background in finance, strategy and operations with more than 20 years of combined international aluminum and metals experience. He has a master's in business administration from Vanderbilt University as well as a bachelor's degree in business administratio

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits. Exhibit Number Description 99.1 Press release dated December 18, 2025. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

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 Date: December 18, 2025 By: /s/ Cherrie I. Tsai Cherrie I. Tsai, Vice President, Deputy General Counsel and Corporate Secretary

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