KALU / Kaiser Aluminum Corporation - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Kaiser Aluminum Corporation
US ˙ NasdaqGS ˙ US4830077040

Statistik Asas
CIK 811596
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Kaiser Aluminum Corporation
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
July 30, 2025 8-K

FORM 8-K Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

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): July 30, 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

July 24, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 23, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 23, 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

July 23, 2025 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter 2025 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter 2025 Financial Results Second Quarter 2025 Highlights: o Net Sales $823 Million; Conversion Revenue $374 Million o Net Income $23 Million; Net Income per Diluted Share $1.41 o Adjusted Net Income $20 Million; Adjusted Net Income per Diluted Share $1.21 o Adjusted EBITDA $68 Million; Adjusted EBITDA Margin 18.1% o Raising Full Year 202

July 15, 2025 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., July 15, 2025 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on August 15, 2025 to stockholders of record as of the close of business on July 25, 2025. Ab

July 15, 2025 8-K

FORM 8-K Item 8.01 Other Events. Item 9.01 Financial Statements and Exhibits.

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): July 15, 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

June 10, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): June 10, 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

June 10, 2025 EX-99.1

Kaiser Aluminum Corporation Announces Appointment of Glenda J. Minor to its Board of Directors

Exhibit 99.1 Kaiser Aluminum Corporation Announces Appointment of Glenda J. Minor to its Board of Directors FRANKLIN, Tenn., June 10, 2025 – Kaiser Aluminum Corporation (NASDAQ: KALU) (“Kaiser” or the “Company”) today announced that its Board of Directors has appointed Glenda J. Minor to serve as an independent director. Ms. Minor will serve as a Class II director with a term expiring at the Compa

May 23, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 1550 West McEwen Drive, Suite 500 Franklin, Tennessee 37067 (Address

April 28, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AME

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confide

April 24, 2025 EX-10.4

2025 Form of Executive Officer Performance Shares Award Agreement

Exhibit 10.4 Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (As Amended and Restated) Performance Shares Award Agreement You have been selected to receive a grant of Performance Shares pursuant to the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated (the “Plan”), as specified below: Participant: [] Date of Grant: [] Number of

April 24, 2025 EX-10.5

Amended and Restated Director Designation Agreement

Exhibit 10.5 AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT This AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT (this “Agreement”), executed this 23rd day of April, 2025 to be effective as of the 23rd day of April, 2025, amends and restates that certain Amended and Restated Director Designation Agreement dated as of September 3, 2021, is made by and between Kaiser Aluminum Corporation, a

April 24, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 24, 2025 EX-10.2

2025-2027 Long-Term Incentive Plan Performance Shares

Exhibit 10.2 Kaiser Aluminum 2025-2027 Long-Term Incentive Plan Performance Shares The following sets forth the terms and conditions applicable to the Performance Shares granted pursuant to the terms of the Kaiser Aluminum 2025-2027 Long-Term Incentive Plan (the “LTIP”): Performance Metrics: The applicable measurable performance metrics: • for 60% of the Performance Shares is the percentile rankin

April 24, 2025 EX-10.3

2025 Form of Executive Officer Restricted Stock Unit Award Agreement

Exhibit 10.3 Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (As Amended and Restated) Restricted Stock Unit Award Agreement You have been selected to receive a grant of Restricted Stock Units pursuant to the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated (the “Plan”), as specified below: Participant: [] Date of Grant: [] Nu

April 24, 2025 EX-18.1

Preferability Letter from Independent Registered Public Accounting Firm, dated April 24, 2025

Exhibit 18.1 April 24, 2025 Kaiser Aluminum Corporation 1550 West McEwen Drive Suite 500 Franklin, TN 37067 USA Sirs/Madams: At your request, we have read the description included in your Quarterly Report on Form 10-Q to the Securities and Exchange Commission for the quarter ended March 31, 2025, of the facts relating to the change in method used to determine the cost of inventory for finished goo

April 24, 2025 EX-10.1

2025 Short-Term Incentive Plan for Key Managers

Exhibit 10.1 Kaiser Aluminum 2025 Short-Term Incentive Plan for Key Managers This is a summary of the short-term incentive program (“STIP”) of Kaiser Aluminum Corporation (the “Company”) effective January 1, 2025. The STIP performance period is the 2025 calendar year. The 2025 STIP rewards participants for performance based on the Company’s adjusted earnings before interest, taxes, depreciation an

April 23, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 23, 2025 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 23, 2025 EX-99.1

Kaiser Aluminum Corporation Reports First Quarter 2025 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports First Quarter 2025 Financial Results First Quarter 2025 Highlights: o Net Sales $777 Million; Conversion Revenue $363 Million o Net Income $22 Million; Net Income per Diluted Share $1.31 o Adjusted Net Income $24 Million; Adjusted Net Income per Diluted Share $1.44 o Adjusted EBITDA $73 Million; Adjusted EBITDA Margin 20.2% FRANKLIN, Tenn., April 23

April 15, 2025 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., April 15, 2025 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on May 15, 2025 to stockholders of record as of the close of business on April 25, 2025. Abo

April 15, 2025 8-K

Financial Statements and Exhibits, Other Events

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): April 15, 2025 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 2, 2025 EX-99.1

Kaiser Aluminum Corporation Announces First Quarter 2025 Earnings Release, Conference Call, and Change in Inventory Accounting Methodology

Exhibit 99.1 Kaiser Aluminum Corporation Announces First Quarter 2025 Earnings Release, Conference Call, and Change in Inventory Accounting Methodology FRANKLIN, Tenn., April 2, 2025 – Kaiser Aluminum Corporation (NASDAQ: KALU) (“Kaiser” or the “Company”) today announced that it plans to release its first quarter 2025 financial and operating results on Wednesday, April 23, 2025, after the market c

April 2, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 02, 2025 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

February 20, 2025 EX-21.1

Significant Subsidiaries of Kaiser Aluminum Corporation

Exhibit 21.1 SUBSIDIARIES Listed below are the principal subsidiaries and equity investments of Kaiser Aluminum Corporation, the jurisdiction of their incorporation or organization, and the names under which such subsidiaries do business. The Company's ownership is indicated for its equity investment. Certain subsidiaries are omitted which, considered in the aggregate as a single subsidiary, would

February 20, 2025 EX-97.1

Kaiser Aluminum Corporation Compensation Clawback Policy Effective October 2, 2023

Exhibit 97.1 Kaiser Aluminum Corporation Compensation Clawback Policy Effective October 2, 2023 Purpose As required pursuant to the listing standards of The Nasdaq Stock Market LLC (the “Stock Exchange”), Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Rule 10D-1 under the Exchange Act, the Board of Directors (the “Board”) of Kaiser Aluminum Corporation (th

February 20, 2025 10-K

/a UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

/a UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATION

February 20, 2025 EX-10.14

Form of Non-Employee Director Restricted Stock Award Agreement

Exhibit 10.14 Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (Amended and Restated Effective June 11, 2024) Restricted Stock Award Agreement As a Director of Kaiser Aluminum Corporation, a Delaware corporation (the “Company”), you are receiving this grant of Restricted Stock pursuant to the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended

February 19, 2025 EX-99.1

Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2024 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2024 Financial Results Fourth Quarter 2024 Highlights: o Net Sales $765 Million; Conversion Revenue $358 Million o Net Income $7 Million; Net Income per Diluted Share $0.43 o Adjusted Net Income $6 Million; Adjusted Net Income per Diluted Share $0.33 o Adjusted EBITDA $50 Million and Adjusted EBITDA Margin 14.0% o Declar

February 19, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 19, 2025 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

January 14, 2025 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

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): January 14, 2025 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

January 14, 2025 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., January 14, 2025 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on February 14, 2025 to stockholders of record as of the close of business on January 24,

January 6, 2025 EX-99.1

Kaiser Aluminum Corporation Announces New Chairman of the Board and Appointment of New Director Following Retirement of Previous Executive Chair

Exhibit 99.1 Kaiser Aluminum Corporation Announces New Chairman of the Board and Appointment of New Director Following Retirement of Previous Executive Chair FRANKLIN, Tenn., January 6, 2025 – Kaiser Aluminum Corporation (NASDAQ: KALU) (“Kaiser” or the “Company”) today announced Jack A. Hockema, Executive Chair of the Board of Directors (the “Board”) and Chair of the Executive Committee of the Boa

January 6, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): December 31, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

December 11, 2024 EX-10.1

Kaiser Aluminum Corporation Key Employee Severance Benefit Plan

Exhibit 10.1 KAISER ALUMINUM CORPORATION KEY EMPLOYEE SEVERANCE BENEFIT PLAN 1. Introduction. This Kaiser Aluminum Corporation Key Employee Severance Benefit Plan (the “Plan”) is established by Kaiser Aluminum Corporation (the “Company”) on December 5, 2024 (the “Effective Date”) to provide severance benefits to selected employees of the Company. The Plan is intended to be a top hat welfare benefi

December 11, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): December 05, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

November 13, 2024 SC 13G

KALU / Kaiser Aluminum Corporation / BARROW HANLEY MEWHINNEY & STRAUSS LLC - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check appropriate box to designate the rule pursuant to which this Schedu

November 7, 2024 SC 13G/A

KALU / Kaiser Aluminum Corporation / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

October 24, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPO

October 24, 2024 EX-10.1

Amendment No. 4 to Credit Agreement and Loan Documents, dated as of September 25, 2024, by and among the Company and certain affiliates of the Company, as borrowers, Wells Fargo Bank, National Association, as agent for the lenders, and the lenders party thereto

Exhibit 10.1 Amendment No. 4 TO CREDIT AGREEMENT AND LOAN DOCUMENTS This Amendment No. 4 to Credit Agreement and Loan Documents (this “agreement”) is dated as of September 25, 2024 and is among the Persons identified on the signature pages hereof as Lenders (which Lenders constitute the Required Lenders and, as applicable, all affected Lenders), Wells Fargo Bank, National Association, a national b

October 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 23, 2024 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 23, 2024 EX-99.1

Kaiser Aluminum Corporation Reports Third Quarter 2024 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Third Quarter 2024 Financial Results Third Quarter 2024 Highlights: o Net Sales $748 Million; Conversion Revenue $362 Million o Net Income $12 Million; Net Income per Diluted Share $0.74 o Adjusted Net Income $8 Million; Adjusted Net Income per Diluted Share $0.51 o Adjusted EBITDA $50 Million and Adjusted EBITDA Margin 13.9%; Inclusive of $4 Millio

October 15, 2024 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., October 15, 2024 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on November 15, 2024 to stockholders of record as of the close of business on October 25,

October 15, 2024 8-K

Financial Statements and Exhibits, Other Events

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): October 15, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

July 26, 2024 EX-10.2

Description of Compensation of Directors

Exhibit 10.2 COMPENSATION OF DIRECTORS Effective as of June 11, 2024 Each non-employee director of Kaiser Aluminum Corporation (the “Company”) shall receive: • an annual retainer of $90,000 per year; and • an annual grant of restricted stock having a value equal to $140,000. If the number of the Company’s board or committee meetings during the year exceeds a reasonable number of expected meetings,

July 26, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 24, 2024 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 24, 2024 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter 2024 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter 2024 Financial Results Second Quarter 2024 Highlights: o Net Sales $773 Million; Conversion Revenue $369 Million o Net Income $3 Million; Net Income per Diluted Share $0.19 o Adjusted Net Income $11 Million; Adjusted Net Income per Diluted Share $0.65 o Adjusted EBITDA $54 Million; Adjusted EBITDA Margin 14.5% FRANKLIN, Tenn., July 24

July 15, 2024 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., July 15, 2024 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on August 15, 2024 to stockholders of record as of the close of business on July 25, 2024. Ab

July 15, 2024 8-K

Financial Statements and Exhibits, Other Events

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): July 15, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 11, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): June 11, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 11, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Form S-8 (Form Type) Kaiser Aluminum Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price(2) Fee Rate Amount of Registration Fee Equity  Common Stock, $0.

June 11, 2024 EX-10.1

Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (Amended and Restated Effective June 11, 2024)

Exhibit 10.1 Kaiser Aluminum Corporation 2021 EQUITY and INCENTIVE Compensation PLAN (Amended and Restated Effective June 11, 2024) 1. Purpose. The purpose of this Plan is to permit award grants to non-employee Directors and officers, other employees and certain service providers of the Company and its Subsidiaries and to provide to such persons incentives and rewards for service and/or performanc

June 11, 2024 S-8

As filed with the Securities and Exchange Commission on June 11, 2024

As filed with the Securities and Exchange Commission on June 11, 2024 Registration No.

May 24, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 1550 West McEwen Drive, Suite 500 Franklin, Tennessee 37067 (Address

May 21, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

-$84.33 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

April 26, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AME

-$84.33 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐

April 25, 2024 EX-10.2

2024-2026 Long-Term Incentive Plan Performance Shares

Exhibit 10.2 Kaiser Aluminum 2024-2026 Long-Term Incentive Plan Performance Shares The following sets forth the terms and conditions applicable to the Performance Shares granted pursuant to the terms of the Kaiser Aluminum 2024-2026 Long-Term Incentive Plan (the “LTIP”): Performance Metrics: The applicable measurable performance metrics: • for 60% of the Performance Shares is the percentile rankin

April 25, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 25, 2024 EX-10.3

2024 Form of Executive Officer Performance Shares Award Agreement

Exhibit 10.3 Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan Performance Shares Award Agreement You have been selected to receive a grant of Performance Shares pursuant to the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (the “Plan”), as specified below: Participant: [] Date of Grant: [] Number of Performance Shares Granted: [] End of Performance

April 25, 2024 EX-10.1

2024 Short-Term Incentive Plan for Key Managers

Exhibit 10.1 Kaiser Aluminum 2024 Short-Term Incentive Plan for Key Managers This is a summary of the short-term incentive program (“STIP”) of Kaiser Aluminum Corporation (the “Company”) effective January 1, 2024. The STIP performance period is the 2024 calendar year. The 2024 STIP rewards participants for performance based on the Company’s adjusted earnings before interest, taxes, depreciation an

April 24, 2024 EX-99.1

Kaiser Aluminum Corporation Reports First Quarter 2024 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports First Quarter 2024 Financial Results First Quarter 2024 Highlights: o Net Sales $738 Million; Conversion Revenue $367 Million o Net Income $25 Million; Net Income per Diluted Share $1.51 o Adjusted Net Income $17 Million; Adjusted Net Income per Diluted Share $1.02 o Adjusted EBITDA $62 Million; Adjusted EBITDA Margin 17.0% o Improved Cost Controls

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 24, 2024 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 15, 2024 8-K

Financial Statements and Exhibits, Other Events

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): April 15, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 15, 2024 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., April 15, 2024 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on May 15, 2024 to stockholders of record as of the close of business on April 25, 2024. Abo

February 23, 2024 10-K

a UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

a UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATION

February 23, 2024 EX-97.1

Kaiser Aluminum Corporation Compensation Clawback Policy Effective October 2, 2023

Exhibit 97.1 Kaiser Aluminum Corporation Compensation Clawback Policy Effective October 2, 2023 Purpose As required pursuant to the listing standards of The Nasdaq Stock Market LLC (the “Stock Exchange”), Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Rule 10D-1 under the Exchange Act, the Board of Directors (the “Board”) of Kaiser Aluminum Corporation (th

February 23, 2024 EX-21.1

Significant Subsidiaries of Kaiser Aluminum Corporation

Exhibit 21.1 SUBSIDIARIES Listed below are the principal subsidiaries and equity investments of Kaiser Aluminum Corporation, the jurisdiction of their incorporation or organization, and the names under which such subsidiaries do business. The Company's ownership is indicated for its equity investment. Certain subsidiaries are omitted which, considered in the aggregate as a single subsidiary, would

February 23, 2024 EX-19.1

Kaiser Aluminum Corporation Securities Trading Policy

Exhibit 19.1 KAISER ALUMINUM CORPORATION Securities Trading Policy 1. General Policy It is the policy of Kaiser Aluminum Corporation (the “Company”) to comply with all applicable federal and state securities laws, including those relating to buying or selling stock or other securities of the Company. In the course of conducting the Company’s business, directors, employees, agents or independent co

February 21, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 21, 2024 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

February 21, 2024 EX-99.1

Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2023 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2023 Financial Results Fourth Quarter 2023 Highlights: o Net Sales $722 Million; Conversion Revenue $361 Million o Net Income $8 Million; Net Income per Diluted Share $0.47 o Adjusted Net Income $10 Million; Adjusted Net Income per Diluted Share $0.60 o Adjusted EBITDA $52 Million; Adjusted EBITDA Margin 14.3% o Aerospac

February 16, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): February 12, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

February 14, 2024 SC 13G

KALU / Kaiser Aluminum Corporation / MACQUARIE GROUP LTD - SC 13G Passive Investment

SC 13G 1 d742578dsc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 0)* Kaiser Aluminum Corp (Name of Issuer) Common Shares (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

February 14, 2024 EX-99.A

Page 8 of 13

EX-99.A 2 d742578dex99a.htm EX-99.A EXHIBIT A AGREEMENT TO FILE JOINT ACQUISITION STATEMENTS AGREEMENT made this [7th] day of FEBRUARY, 2024 by and between Delaware Funds by Macquarie,® Optimum Fund Trust and Macquarie ETF Trust listed on Annex A hereto, Macquarie Investment Management Business Trust, Macquarie Management Holdings, Inc, and the Macquarie Parties listed on Annex B hereto (collectiv

February 14, 2024 EX-99.B

Page 13 of 13

EX-99.B 3 d742578dex99b.htm EX-99.B EXHIBIT B Powers of Attorney for Macquarie Group Limited incorporated by reference to 13G filings made by Macquarie Group Limited on June 7, 2023. Page 13 of 13

February 13, 2024 SC 13G/A

KALU / Kaiser Aluminum Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01262-kaiseraluminumcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Kaiser Aluminum Corp Title of Class of Securities: Common Stock CUSIP Number: 483007704 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to des

February 13, 2024 SC 13G

KALU / Kaiser Aluminum Corporation / BARROW HANLEY MEWHINNEY & STRAUSS LLC - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check appropriate box to designate the rule pursuant to which this Schedul

February 9, 2024 EX-99

JOINT FILING AGREEMENT

Invesco Joint Filing Agreement JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) (l) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of the attached Schedule 13G, and any and all amendments thereto, and expressly authorize Invesco Ltd.

February 9, 2024 SC 13G

KALU / Kaiser Aluminum Corporation / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

February 6, 2024 SC 13G/A

KALU / Kaiser Aluminum Corporation / VICTORY CAPITAL MANAGEMENT INC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. 3)* Kaiser Aluminum Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

January 12, 2024 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

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): January 11, 2024 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

January 12, 2024 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., January 11, 2024 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on February 15, 2024 to stockholders of record as of the close of business on January 25,

October 26, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPO

October 25, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 25, 2023 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 25, 2023 EX-99.1

Kaiser Aluminum Corporation Reports Third Quarter 2023 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Third Quarter 2023 Financial Results Third Quarter 2023 Highlights: o Net Sales $744 Million; Conversion Revenue $357 Million o Net Income $5 Million; Net Income per Diluted Share $0.34 o Adjusted Net Income $7 Million; Adjusted Income per Diluted Share $0.46 o Adjusted EBITDA $48 Million; Adjusted EBITDA Margin 13.3% o Aerospace Conversion Revenue

October 13, 2023 8-K/A

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 07, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissi

October 12, 2023 8-K

Financial Statements and Exhibits, Other Events

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): October 12, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 12, 2023 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., October 12, 2023 – Kaiser Aluminum Corporation (NASDAQ:KALU), a leading producer of semi-fabricated specialty aluminum products serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, general engineering, automotive extrusions, and ot

July 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 25, 2023 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter 2023 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter 2023 Financial Results Second Quarter 2023 Highlights: o Net Sales $814 Million; Conversion Revenue $379 Million o Net Income $18 Million; Net Income per Diluted Share $1.14 o Adjusted Net Income $20 Million; Adjusted Income per Diluted Share $1.26 o Adjusted EBITDA $64 Million; Adjusted EBITDA Margin 16.8% o Aerospace Shipments and C

July 25, 2023 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): July 25, 2023 KAISER ALUMINUM COR

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): July 25, 2023 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 13, 2023 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., July 13, 2023 – Kaiser Aluminum Corporation (NASDAQ:KALU), a leading producer of semi-fabricated specialty aluminum products serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, general engineering, automotive extrusions, and other

July 13, 2023 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

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): July 13, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 7, 2023 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

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): June 07, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 7, 2023 EX-99.1

Kaiser Aluminum Corporation Announces New Chief Accounting Officer

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces New Chief Accounting Officer FRANKLIN, Tenn., June 7, 2023 – Kaiser Aluminum Corporation (NASDAQ: KALU), a leading producer of semi-fabricated specialty aluminum products serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, general engineering, automotive extrusions, and oth

May 26, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 1550 West McEwen Drive, Suite 500 Franklin, Tennessee 37067 (Address

April 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 28, 2023 EX-10

2023 Short-term Incentive Plan

Exhibit 10.1 Kaiser Aluminum 2023 Short-Term Incentive Plan for Key Managers This is a summary of the short-term incentive program (“STIP”) of Kaiser Aluminum Corporation (the “Company”) effective January 1, 2023. The STIP performance period is the 2023 calendar year. The 2023 STIP rewards participants for performance based on the Company’s adjusted earnings before interest, taxes, depreciation an

April 28, 2023 EX-10

2023 Form of Executive Officer Performance Shares Award Agreement

Exhibit 10.3 Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan Performance Shares Award Agreement You have been selected to receive a grant of Performance Shares pursuant to the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan (the “Plan”), as specified below: Participant: [] Date of Grant: [] Number of Performance Shares Granted: [] End of Performance

April 28, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AME

$95.13 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐

April 28, 2023 EX-10

2023-2025 Long-Term Incentive Plan for Key Managers Summary

Exhibit 10.2 Kaiser Aluminum 2023-2025 Long-Term Incentive Plan Performance Shares The following sets forth the terms and conditions applicable to the Performance Shares granted pursuant to the terms of the Kaiser Aluminum 2023-2025 Long-Term Incentive Plan (the “LTIP”): Performance Metrics: The applicable measurable performance metrics: • for 60% of the Performance Shares is the percentile rankin

April 26, 2023 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): April 26, 2023 KAISER ALUMINUM CO

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): April 26, 2023 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 26, 2023 EX-99

Kaiser Aluminum Corporation Reports First Quarter 2023 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports First Quarter 2023 Financial Results First Quarter 2023 Highlights: o Net Sales $808 Million; Conversion Revenue $369 Million o Net Income $16 Million; Net Income per Diluted Share $0.99 o Adjusted Net Income $7 Million; Adjusted Income per Diluted Share $0.42 o Adjusted EBITDA $47 Million; Adjusted EBITDA Margin 12.7% o Aerospace Demand Continued t

April 18, 2023 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

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): April 17, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 13, 2023 EX-99

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., April 13, 2023 – Kaiser Aluminum Corporation (NASDAQ:KALU), a leading producer of semi-fabricated specialty aluminum products serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, automotive extrusions, general engineering and other

April 13, 2023 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

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): April 13, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

February 24, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATION (E

February 24, 2023 EX-21

Significant Subsidiaries of Kaiser Aluminum Corporation

Exhibit 21.1 SUBSIDIARIES Listed below are the principal subsidiaries and equity investments of Kaiser Aluminum Corporation, the jurisdiction of their incorporation or organization, and the names under which such subsidiaries do business. The Company's ownership is indicated for its equity investment. Certain subsidiaries are omitted which, considered in the aggregate as a single subsidiary, would

February 24, 2023 EX-10

Omnibus Amendment No. 1 to Credit Agreement and Loan Documents, dated as of March 31, 2021, by and among the Company and certain affiliates of the Company, as borrowers, Wells Fargo Bank, National Association, as agent for the lenders, and the lenders party thereto.

Exhibit 10.2 Execution Version OMNIBUS Amendment No. 1 This Omnibus Amendment No. 1 is dated as of March 31, 2021, and is among the Persons identified on the signature pages hereof as Lenders (which Lenders constitute the Required Lenders and, as applicable, all affected Lenders), Wells Fargo Bank, National Association, a national banking association (“Wells Fargo”), as agent for the Lenders (Well

February 24, 2023 EX-10

Amendment No. 2 to Credit Agreement and Loan Documents, dated as of December 3, 2021, by and among the Company and certain affiliates of the Company, as borrowers, Wells Fargo Bank, National Association, as agent for the lenders, and the lenders party thereto.

Exhibit 10.3 Amendment No. 2 TO CREDIT AGREEMENT This Amendment No. 2 to Credit Agreement is dated as of December 3, 2021, and is among the Persons identified on the signature pages hereof as Lenders (which Lenders constitute the Required Lenders and, as applicable, all affected Lenders), Wells Fargo Bank, National Association, a national banking association (“Wells Fargo”), as agent for the Lende

February 22, 2023 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): February 22, 2023 KAISER ALUMINUM

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): February 22, 2023 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

February 22, 2023 EX-99

Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2022 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2022 Financial Results Fourth Quarter 2022 Highlights: o Net Sales $776 Million; Conversion Revenue $356 Million o Net Loss $26 Million; Net Loss per Diluted Share $1.66 o Adjusted Net Loss $7 Million; Adjusted Loss per Diluted Share $0.45 o Adjusted EBITDA $30 Million; Adjusted EBITDA Margin 8.4% Full Year 2022 Highligh

February 14, 2023 EX-99.A

Page 8 of 12

EX-99.A 2 d430666dex99a.htm EX-99.A EXHIBIT A AGREEMENT TO FILE JOINT ACQUISITION STATEMENTS AGREEMENT made this 2nd day of FEBRUARY, 2021 by and between Delaware Funds® by Macquarie listed on Annex A hereto, Macquarie Investment Management Business Trust, Macquarie Management Holdings, Inc, and the Macquarie Parties listed on Annex B hereto (collectively referred to as the “parties”). WHEREAS, th

February 14, 2023 SC 13G/A

KALU / Kaiser Aluminum Corp. / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A 1 d430666dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Kaiser Aluminum Corp (Name of Issuer) Common Shares (Title of Class of Securities) 483007704 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 14, 2023 EX-99.B

Page 12 of 12

EX-99.B 3 d430666dex99b.htm EX-99.B Exhibit 99.B EXHIBIT B Powers of Attorney for Macquarie Group Limited and Macquarie Bank Limited incorporated by reference to 13G filings made by Macquarie Group Limited and Macquarie Bank Limited on May 25, 2021. Page 12 of 12

February 9, 2023 SC 13G/A

KALU / Kaiser Aluminum Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01222-kaiseraluminumcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Kaiser Aluminum Corp. Title of Class of Securities: Common Stock CUSIP Number: 483007704 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to de

January 31, 2023 SC 13G/A

KALU / Kaiser Aluminum Corp. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

SC 13G/A 1 kaiseraluminum13ga2123122.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. 2)* Kaiser Aluminum Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to d

January 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): January 26, 2023 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

January 26, 2023 EX-99.1

Shipments and Conversion Revenue by End Market Applications As Adjusted (Unaudited) (In millions of dollars, except shipments and Conversion Revenue per pound)

FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Date of Fourth Quarter and Full Year 2022 Earnings Release and Conference Call and Changes to Presentation of Non-GAAP Financial Measures • Fourth quarter and full year 2022 financial and operating results to be released after market close on February 22, 2023 • Conference call to discuss financial and operating results to begin at 10:00 a.

January 12, 2023 8-K

Financial Statements and Exhibits, Other Events

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): January 12, 2023 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

January 12, 2023 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn., January 12, 2023 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on February 15, 2023 to shareholders of record as of the close of business on January 25,

December 14, 2022 CORRESP

1550 West McEwen Drive, Suite 500

1550 West McEwen Drive, Suite 500 Franklin, TN 37067 December 14, 2022 Mr. Charles Eastman and Ms. Claire Erlanger Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Re: Kaiser Aluminum Corporation Form 10-K for the year ended December 31, 2021 Form 10-Q for the quarter ended June 30, 2022 Response letter dated Septe

October 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPO

October 19, 2022 EX-99.1

Kaiser Aluminum Corporation Reports Third Quarter and Nine Months 2022 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Third Quarter and Nine Months 2022 Financial Results Third Quarter 2022 Highlights: o Net Sales $749 Million; Value Added Revenue $356 Million o Net Income $3 Million; Net Income per Diluted Share $0.16 o Adjusted Net Income $10 Million; Adjusted Income per Diluted Share $0.60 o Adjusted EBITDA $31 Million; Adjusted EBITDA Margin 8.8% o Warrick Magn

October 19, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 19, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 13, 2022 8-K

Financial Statements and Exhibits, Other Events

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): October 13, 2022 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 13, 2022 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn. ? October 13, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on November 15, 2022 to shareholders of record as of the close of business on October 25,

September 28, 2022 CORRESP

1550 West McEwen Drive, Suite 500

CORRESP 1 filename1.htm 1550 West McEwen Drive, Suite 500 Franklin, TN 37067 September 28, 2022 Mr. Charles Eastman and Ms. Claire Erlanger Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Re: Kaiser Aluminum Corporation Form 10-K for the year ended December 31, 2021 Form 10-Q for the quarter ended June 30, 2022 Re

September 15, 2022 CORRESP

1550 West McEwen Drive, Suite 500

CORRESP 1 filename1.htm 1550 West McEwen Drive, Suite 500 Franklin, TN 37067 September 15, 2022 Via EDGAR Mr. Charles Eastman and Ms. Claire Erlanger Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Re: Kaiser Aluminum Corporation Form 10-K for the year ended December 31, 2021 Form 10-Q for the quarter ended June 3

September 6, 2022 8-K

Financial Statements and Exhibits, Other Events

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 06, 2022 KAISER ALUMINUM CORPORATION (Exact name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commi

September 6, 2022 EX-99.1

Kaiser Aluminum Lifts Force Majeure at its Warrick Rolling Mill

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Lifts Force Majeure at its Warrick Rolling Mill FRANKLIN, Tenn. ? September 6, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) announced today that it has lifted force majeure declared on July 7, 2022 at its Warrick Rolling Mill (?Kaiser Warrick?), due to limited availability of magnesium utilized in the production of certain of its aluminum beve

August 2, 2022 CORRESP

1550 West McEwen Drive, Suite 500 Franklin, TN 37067

1550 West McEwen Drive, Suite 500 Franklin, TN 37067 August 2, 2022 Mr. Charles Eastman and Ms. Claire Erlanger Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Re: Kaiser Aluminum Corporation Form 10-K for the year ended December 31, 2021 Form 8-K filed April 20, 2022 File No. 1-09447 Dear Mr. Eastman and Ms. Erla

July 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 28, 2022 EX-10.2

Description of Compensation of Directors

Exhibit 10.2 COMPENSATION OF DIRECTORS Effective as of June 2, 2022 Each non-employee director of Kaiser Aluminum Corporation (the ?Company?) shall receive: ? an annual retainer of $90,000 per year; and ? an annual grant of restricted stock having a value equal to $130,000. In addition, the Lead Independent Director and Executive Chair shall receive an additional annual retainer of $30,000, and ea

July 25, 2022 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter and First Half 2022 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter and First Half 2022 Financial Results Second Quarter 2022 Highlights: o Net Sales $954 Million; Value Added Revenue $376 Million o Net Loss $14 Million; Net Loss per Diluted Share $0.87 o Adjusted Net Loss $1 Million; Adjusted Loss per Diluted Share $0.03 o Adjusted EBITDA $41 Million; Adjusted EBITDA Margin 10.9% o Strong Demand for

July 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 25, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 14, 2022 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn. ? July 14, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on August 15, 2022 to shareholders of record as of the close of business on July 25, 2022. C

July 14, 2022 8-K

Financial Statements and Exhibits, Other Events

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): July 14, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 7, 2022 8-K

Financial Statements and Exhibits, Other Events

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): July 7, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 7, 2022 EX-99.1

Kaiser Aluminum Declares Force Majeure at its Warrick Rolling Mill Due to Limited Availability of Magnesium

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Declares Force Majeure at its Warrick Rolling Mill Due to Limited Availability of Magnesium FRANKLIN, Tenn. ? July 7, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) announced today that it declared force majeure at its Warrick Rolling Mill (?Kaiser Warrick?) due to the limited availability of magnesium utilized in the production of certain of it

June 17, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): June 15, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 3, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

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): May 31, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

May 27, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 1550 West McEwen Drive, Suite 500 Franklin, Tennessee 37067 (Address

April 29, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AME

zz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Conf

April 29, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): April 26, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 20, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 20, 2022 EX-99.1

Kaiser Aluminum Corporation Reports First Quarter 2022 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports First Quarter 2022 Financial Results First Quarter 2022 Highlights: o Net Sales $949 Million; Value Added Revenue $370 Million o Net Income $8 Million; Net Income per Diluted Share $0.51 o Adjusted Net Income $11 Million; Adjusted Earnings per Diluted Share $0.66 o Adjusted EBITDA $55 Million; Adjusted EBITDA Margin 14.8% o Strong Demand for General

April 18, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): April 15, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 14, 2022 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FRANKLIN, Tenn. ? April 14, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share. The dividend will be payable on May 13, 2022 to shareholders of record as of the close of business on April 25, 2022. Co

April 14, 2022 8-K

Financial Statements and Exhibits, Other Events

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): April 14, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 12, 2022 EX-10.1

Amendment No. 3 to Credit Agreement and Loan Documents, dated as of April 7, 2022, by and among the Company and certain affiliates of the Company, as borrowers, Wells Fargo Bank, National Association, as agent for the lenders, and the lenders party thereto.

Exhibit 10.1 AMENDMENT NO. 3 TO CREDIT AGREEMENT AND LOAN DOCUMENTS This Amendment No. 3 to Credit Agreement and Loan Documents (this ?agreement?) is dated as of April 7, 2022, and is among the Persons identified on the signature pages hereof as Lenders (which Lenders constitute the Required Lenders and, as applicable, all affected Lenders), WELLS FARGO BANK, NATIONAL ASSOCIATION, a national banki

April 12, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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): April 7, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

March 10, 2022 EX-10.1

2022 Short-Term incentive Plan.

Exhibit 10.1 Kaiser Aluminum 2022 Short-Term Incentive Plan for Key Managers This is a summary of the short-term incentive program (?STIP?) of Kaiser Aluminum Corporation (the ?Company?) effective January 1, 2022. The STIP performance period is the 2022 calendar year. The 2022 STIP rewards participants for performance based on return on net assets targets derived from the reported adjusted pre-tax

March 10, 2022 EX-10.2

2022-2024 Long-Term Incentive Plan

Exhibit 10.2 Kaiser Aluminum 2022-2024 Long-Term Incentive Plan Management Objective: The applicable measurable performance objective: ? for 60% of the Performance Shares is the percentile ranking (?Relative TSR Ranking?) of the total shareholder return (?TSR?) of Kaiser Aluminum Corporation (the ?Company?) over the period from January 1, 2022 through December 31, 2024 (the ?Performance Period?) c

March 10, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): March 5, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

March 1, 2022 EX-21.1

Significant Subsidiaries of Kaiser Aluminum Corporation

Exhibit 21.1 SUBSIDIARIES Listed below are the principal subsidiaries and equity investments of Kaiser Aluminum Corporation, the jurisdiction of their incorporation or organization, and the names under which such subsidiaries do business. The Company's ownership is indicated for its equity investment. Certain subsidiaries are omitted which, considered in the aggregate as a single subsidiary, would

March 1, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATION (E

February 23, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 23, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

February 23, 2022 EX-99.1

Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2021 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2021 Financial Results Full Year 2021 Highlights: o Net Sales $2.6 Billion; Value Added Revenue $1.1 Billion o Net Loss $19 Million; Net Loss per Diluted Share $1.17 o Adjusted Net Income $39 Million; Adjusted Earnings per Diluted Share $2.40 o Adjusted EBITDA $193 Million; Adjusted EBITDA Margin 17.3% o Supply Chain Dis

February 14, 2022 SC 13G/A

KALU / Kaiser Aluminum Corp. / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A 1 d306549dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Kaiser Aluminum Corp (Name of Issuer) Common Shares (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 10, 2022 SC 13G/A

KALU / Kaiser Aluminum Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Kaiser Aluminum Corp. Title of Class of Securities: Common Stock CUSIP Number: 483007704 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

February 8, 2022 SC 13G/A

KALU / Kaiser Aluminum Corp. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 11 )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 2, 2022 SC 13G/A

KALU / Kaiser Aluminum Corp. / VICTORY CAPITAL MANAGEMENT INC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. 1)* Kaiser Aluminum Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

January 13, 2022 8-K

Financial Statements and Exhibits, Other Events

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): January 13, 2022 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

January 13, 2022 EX-99.1

Kaiser Aluminum Corporation Announces a 7% Increase in Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces a 7% Increase in Quarterly Dividend Payment FOOTHILL RANCH, Calif. ? January 13, 2022 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.77 per share representing a 7% increase over the prior quarter's dividend. The dividend will be payable on F

October 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPO

October 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): October 20, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 20, 2021 EX-99.1

Kaiser Aluminum Corporation Reports Third Quarter and Nine Months 2021 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Third Quarter and Nine Months 2021 Financial Results Third Quarter 2021 Highlights: o Net Sales $751 Million; Value Added Revenue $305 Million o Net Loss $2 Million; Net Loss per Diluted Share $0.14 o Adjusted Net Income $9 Million; Adjusted Earnings per Diluted Share $0.57 o Adjusted EBITDA $50 Million; Adjusted EBITDA Margin 16.5% o End Market Dem

October 15, 2021 8-K

Financial Statements and Exhibits, Other Events

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): October 15, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 15, 2021 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FOOTHILL RANCH, Calif. ? October 15, 2021 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.72 per share. The dividend will be payable on November 15, 2021 to shareholders of record as of the close of business on Octo

September 7, 2021 EX-10.1

Amended and Restated Director Designation Agreement dated September 3, 2021

Exhibit 10.1 AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT This AMENDED AND RESTATED DIRECTOR DESIGNATION AGREEMENT (this ?Agreement?), executed this 3rd day of September, 2021 to be effective as of the 3rd day of September, 2021, amends and restates that certain Amended and Restated Director Designation Agreement dated as of December 12, 2019, is made by and between Kaiser Aluminum Corporat

September 7, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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 3, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

September 7, 2021 EX-99.1

Kaiser Aluminum Corporation Announces Appointment of Michael C. Arnold and Kevin W. Williams to its Board of Directors

FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Appointment of Michael C.

July 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 21, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 21, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 21, 2021 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter and First Half 2021 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter and First Half 2021 Financial Results Second Quarter 2021 Highlights: o Net Sales $741 Million; Value Added Revenue $318 Million o Net Loss $22 Million; Net Loss per Diluted Share $1.42, Includes Pre-tax Charges of $36 Million or $1.73 per Diluted Share, After-tax, Related to Senior Notes Refinancing o Adjusted Net Income $16 Million;

July 13, 2021 8-K

Financial Statements and Exhibits, Other Events

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): July 13, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 13, 2021 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FOOTHILL RANCH, Calif. ? July 13, 2021 ? Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.72 per share. The dividend will be payable on August 13, 2021 to shareholders of record as of the close of business on July 23, 2021. Company Descript

June 3, 2021 S-8

As filed with the Securities and Exchange Commission on June 3, 2021

As filed with the Securities and Exchange Commission on June 3, 2021 Registration No.

June 3, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): June 3, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

June 3, 2021 EX-10.1

Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan

Exhibit 10.1 Kaiser Aluminum Corporation 2021 EQUITY and INCENTIVE Compensation PLAN 1.Purpose. The purpose of this Plan is to permit award grants to non-employee Directors and officers, other employees and service providers of the Company and its Subsidiaries and to provide to such persons incentives and rewards for service and/or performance. 2.Definitions. As used in this Plan: (a)?Appreciation

May 28, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 001-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 27422 Portola Parkway, Suite 200 Foothill Ranch, California 92610-28

May 20, 2021 EX-4.1

Indenture, dated May 20, 2021, among Kaiser Aluminum Corporation, each of the guarantors named therein and Wells Fargo Bank, National Association, as Trustee

Exhibit 4.1 Execution Version KAISER ALUMINUM CORPORATION, as Issuer and the Guarantors named herein 4.50% Senior Notes due 2031 INDENTURE Dated as of May 20, 2021 WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee TABLE OF CONTENTS Page ARTICLE ONE DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 SECTION 101. Rules of Construction 1 SECTION 102. Definitions 2 SECTION 103. Compliance Cert

May 20, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 20, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

May 18, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AME

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confide

May 12, 2021 EX-99.1

Kaiser Aluminum Corporation Announces Upsizing and Pricing of New Senior Notes

Exhibit 99.1 Kaiser Aluminum Corporation Announces Upsizing and Pricing of New Senior Notes FOOTHILL RANCH, Calif., May 11, 2021 (GLOBE NEWSWIRE) ? Kaiser Aluminum Corporation (Nasdaq: KALU) announced today that it has priced $550.0 million aggregate principal amount of 4.50% senior notes due 2031 (the ?notes?) in a private transaction that is exempt from the registration requirements of the Secur

May 12, 2021 8-K

Financial Statements and Exhibits, Other Events

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 11, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

May 11, 2021 EX-99.1

SUMMARY HISTORICAL FINANCIAL AND OPERATING INFORMATION AND UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION

Exhibit 99.1 Recent developments Warrick first quarter 2021 operating results Warrick?s first quarter ended after the completion of the Acquisition on March 31, 2021. We have prepared, and are presenting, estimated ranges of Warrick Shipments and Net sales for the quarter ended March 31, 2021 in good faith based upon our internal estimates. Furthermore, management estimates that Warrick?s operatin

May 11, 2021 EX-99.2

Kaiser Aluminum Corporation Announces Proposed Private Placement of New Senior Notes

Exhibit 99.2 Kaiser Aluminum Corporation Announces Proposed Private Placement of New Senior Notes FOOTHILL RANCH, Calif., May 11, 2021 (GLOBE NEWSWIRE) ? Kaiser Aluminum Corporation (Nasdaq: KALU) announced today that it plans to offer $500.0 million aggregate principal amount of senior notes due 2031 (the ?notes?) in a private transaction that is exempt from the registration requirements of the S

May 11, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 11, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

May 7, 2021 EX-99.2

UNAUDITED PRO FORMA COMBINED BALANCE SHEET

Exhibit 99.2 UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION On March 31, 2021, Kaiser Aluminum Corporation (the ?Company?) completed its acquisition of Alcoa Warrick LLC along with certain assets comprising the aluminum casting and rolling mill facility (?Warrick?) located in Warrick County, Indiana, pursuant to the terms of the Purchase Agreement between the Company and Alcoa Corporation (the

May 7, 2021 EX-99.1

Report of Independent Auditors

Exhibit 99.1 Alcoa Warrick Rolling Mill (Carve-Out of Certain Operations of Alcoa Warrick, LLC) Combined Financial Statements December 31, 2020 and 2019 and for the Years Then Ended Alcoa Warrick Rolling Mill (A Carve-Out of Certain Operations of Alcoa Warrick, LLC) Index Page(s) Report of Independent Auditors 1 Combined Financial Statements Balance Sheets December 31, 2020 and 2019 2 Statements o

May 7, 2021 8-K/A

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): March 31, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 30, 2021 DEF 14A

- DEF 14A

zz UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Conf

April 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): April 28, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 28, 2021 EX-99.1

Kaiser Aluminum Corporation Reports First Quarter 2021 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports First Quarter 2021 Financial Results First Quarter 2021 Highlights: o Net Sales $324 Million; Value Added Revenue $172 Million o Net Income $5 Million; Net Income per Diluted Share $0.28 o Adjusted Net Income $10 Million; Adjusted Earnings per Diluted Share $0.64 o Adjusted EBITDA $38 Million; Adjusted EBITDA Margin 21.8% o Improving Conditions Acro

April 13, 2021 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

EX-99.1 2 kalu-ex99141.htm EX-99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FOOTHILL RANCH, Calif. – April 13, 2021 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.72 per share. The dividend will be payable on May 14, 2021 to shareholders of record as of t

April 13, 2021 8-K

Financial Statements and Exhibits, Other Events

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): April 13, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissio

April 1, 2021 EX-10.1

Ground Lease Agreement, dated as of March 31, 2021, by and between Kaiser Aluminum Warrick, LLC and Warrick Real Estate LLC, solely as to Sections 2.2, 17 and 33.2, Alcoa Power Generating Inc. and Warrick Newco LLC*

Exhibit 10.1 EXECUTION VERSION GROUND LEASE AGREEMENT BY AND BETWEEN WARRICK REAL ESTATE LLC as LANDLORD AND ALCOA WARRICK LLC as TENANT AND SOLELY FOR PURPOSES OF SECTIONS 2.2, 17 AND 33.2 ALCOA POWER GENERATING INC. AND WARRICK NEWCO LLC DATED March 31, 2021 TABLE OF CONTENTS Page Table of Contents Section 1 Agreement to Lease 8 1.1 Grant 8 1.2 Additional Encumbrances 9 1.3 Access Areas 9 1.4 Ne

April 1, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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): March 31, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission Fi

April 1, 2021 EX-99.1

Kaiser Aluminum Corporation Completes the Purchase of Alcoa Warrick LLC, and Re-enters the North American Aluminum Packaging Industry

Exhibit 99.1 Kaiser Aluminum Corporation Completes the Purchase of Alcoa Warrick LLC, and Re-enters the North American Aluminum Packaging Industry FOOTHILL RANCH, Calif., April 1, 2021?Kaiser Aluminum Corporation (NASDAQ:KALU), today announced that it has completed its acquisition of Alcoa Warrick LLC, containing all the assets of the Warrick Rolling Mill (?Warrick?), from Alcoa Corporation (?Alco

March 11, 2021 EX-10.2

2021 Short-Term Incentive Plan.

Exhibit 10.2 Kaiser Aluminum 2021 Short-Term Incentive Plan for Key Managers This is a summary of the short-term incentive program (?STIP?) of Kaiser Aluminum Corporation (the ?Company?) effective January 1, 2021. The STIP performance period is the 2021 calendar year. The 2021 STIP rewards participants for performance based on return on net assets targets derived from the reported adjusted pre-tax

March 11, 2021 EX-10.3

Kaiser Aluminum Fabricated Products 2021-2023 Long-Term Incentive Plan For Key Managers Summary

Exhibit 10.3 Kaiser Aluminum 2021-2023 Long-Term Incentive Plan Management Objective: The applicable measurable performance objective: ? for 60% of the Performance Shares is the percentile ranking (?Relative TSR Ranking?) of the total shareholder return (?TSR?) of Kaiser Aluminum Corporation (the ?Company?) over the period from January 1, 2021 through December 31, 2023 (the ?Performance Period?) c

March 11, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): March 5, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

March 11, 2021 EX-10.1

Amended and Restated Severance Agreement dated March 5, 2021 between the Company and John M. Donnan

Exhibit 10.1 Amended and Restated SEVERANCE AGREEMENT (EFFECTIVE March 5, 2021) This Amended and Restated Severance Agreement (the ?Agreement?) is entered into by and between Kaiser Aluminum Investments Company, a Delaware corporation (the ?Company?), and John M. Donnan (the ?Executive?), effective March 5, 2021 (the ?Effective Date?). WHEREAS, the Executive is currently party to that certain Chan

February 26, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATION (E

February 24, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 24, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commis

February 24, 2021 EX-99.1

Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2020 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Fourth Quarter and Full Year 2020 Financial Results Full Year 2020: • Solid Execution Under Very Challenging Business Conditions o Net Sales $1,173 Million; Value Added Revenue $697 Million, Down 19% Year-over-Year o Net Income $29 Million; Net Income per Diluted Share $1.81 o Adjusted Net Income $48 Million; Adjusted Earnings per Diluted Share $3.0

February 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 10 )* Kaiser Aluminum Corp (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 12, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 0)* Kaiser Aluminum Corp (Name of Issuer) Common Shares (Title of Class of Securities) (CUSIP Number) Decemb

SC 13G 1 d127920dsc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 0)* Kaiser Aluminum Corp (Name of Issuer) Common Shares (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Kaiser Aluminum Corp. Title of Class of Securities: Common Stock CUSIP Number: 483007704 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

February 9, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. )* Kaiser Aluminum Corp. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) Decemb

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ( Amendment No. )* Kaiser Aluminum Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 483007704 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

January 14, 2021 8-K

Financial Statements and Exhibits, Other Events - 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): January 14, 2021 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employ

January 14, 2021 EX-99.1

Kaiser Aluminum Corporation Announces a 7.5 Percent Increase in Quarterly Dividend Payment

Exhibit 99.1 FOR IMMEDIATE RELEASE Kaiser Aluminum Corporation Announces a 7.5 Percent Increase in Quarterly Dividend Payment FOOTHILL RANCH, Calif. – January 14, 2021 – Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.72 per share representing a 7.5% increase over the prior quarter's dividend. The dividend will be p

November 30, 2020 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits - 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): November 30, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

November 30, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Agreement to Purchase Alcoa Warrick LLC

EX-99.1 Exhibit 99.1 Kaiser Aluminum Corporation Announces Agreement to Purchase Alcoa Warrick LLC • Leading Producer of Beverage and Food Can Stock for the N.A. Packaging Industry • Secular Demand Growth, Favorable Industry Supply/Demand Dynamics • Multi-Year Contracts and Strong Customer Relationships • Non-Cyclic Packaging Business Significantly Diversifies Product Portfolio • Immediately Accre

November 30, 2020 EX-2.1

Purchase Agreement, dated as of November 30, 2020, by and between Alcoa Corporation and Kaiser Aluminum Corporation

EX-2.1 Exhibit 2.1 Execution Version PURCHASE AGREEMENT by and between KAISER ALUMINUM CORPORATION and ALCOA CORPORATION Dated as of November 30, 2020 TABLE OF CONTENTS Page ARTICLE I PURCHASE AND SALE OF EQUITY 1 Section 1.1. Purchase and Sale of Equity 1 Section 1.2. Pre-Closing Transfers of Certain Rolling Mill Assets and Excluded Assets; Assumption of Assumed Liabilities 1 Section 1.3. Purchas

October 26, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPO

October 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 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): October 21, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commiss

October 21, 2020 EX-99.1

Kaiser Aluminum Corporation Reports Third Quarter and First Nine Months 2020 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Third Quarter and First Nine Months 2020 Financial Results Third Quarter 2020: • Net Sales $256 Million; Value Added Revenue $154 Million, Down 28% Year-over-Year • Net Income $0.4 Million; Net income per Diluted Share $0.02 • Adjusted Net Income $5 Million; Adjusted Earnings per Diluted Share $0.33 • Adjusted EBITDA $30 Million; Adjusted EBITDA Mar

October 13, 2020 8-K

Financial Statements and Exhibits, Other Events - 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): October 13, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employ

October 13, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FOOTHILL RANCH, Calif. -October 13, 2020 - Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.67 per share. The dividend will be payable on November 13, 2020 to shareholders of record as of the close of business on October 23, 2020. Company D

July 31, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): July 31, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer

July 31, 2020 EX-10.1

Amended and Restated Severance Agreement dated July 31, 2020 between the Company and Keith A. Harvey

Exhibit 10.1 AMENDED AND RESTATED SEVERANCE AGREEMENT (EFFECTIVE JULY 31, 2020) This Amended and Restated Severance Agreement (the “Agreement”) is entered into by and between Kaiser Aluminum Investments Company, a Delaware corporation (the “Company”), and Keith A. Harvey (the “Executive”), effective July 31, 2020 (the “Effective Date”). WHEREAS, the Executive is currently party to that certain Cha

July 28, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATIO

July 28, 2020 EX-10.1

Description of Compensation of Directors

Exhibit 10.1 COMPENSATION OF DIRECTORS Effective as of June 10, 2020 Each non-employee director of Kaiser Aluminum Corporation (the “Company”) shall receive: • an annual retainer of $60,000 per year; • an annual grant of restricted stock having a value equal to $125,000; • a fee of $1,500 per day for each meeting of the Board of Directors (the “Board”) attended in person and $750 per day for each

July 22, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): July 22, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commission

July 22, 2020 EX-99.1

Kaiser Aluminum Corporation Reports Second Quarter and First Half 2020 Financial Results

Exhibit 99.1 Kaiser Aluminum Corporation Reports Second Quarter and First Half 2020 Financial Results Second Quarter 2020: • Net Sales $276 Million; Value Added Revenue $175 Million, Down 17% Year-over-Year • Net Loss $7 Million; Net Loss per Diluted Share $0.41, Includes Pre-tax Restructuring Charges of $12 Million, or $0.57 per Diluted Share After-tax • Adjusted Net Income $6 Million; Adjusted E

July 14, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Quarterly Dividend Payment

Exhibit 99.1 Kaiser Aluminum Corporation Announces Quarterly Dividend Payment FOOTHILL RANCH, Calif. -July 14, 2020 - Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors has declared a quarterly cash dividend of $0.67 per share. The dividend will be payable on August 14, 2020 to shareholders of record as of the close of business on July 24, 2020. Company Descripti

July 14, 2020 8-K

Financial Statements and Exhibits, Other Events

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): July 14, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer

June 22, 2020 EX-3.1

Amended and Restated Bylaws of the Company

Exhibit 3.1 KAISER ALUMINUM CORPORATION AMENDED AND RESTATED BYLAWS Effective June 22, 2020 TABLE OF CONTENTS Page STOCKHOLDERS MEETINGS 1 1. Time and Place of Meetings 1 2. Annual Meeting 1 3. Special Meetings 1 4. Notice of Meetings 1 5. Inspectors 2 6. Quorum 2 7. Voting; Proxies 2 8. Order of Business 2 DIRECTORS 4 9. Function 4 10. Number, Election and Terms 4 11. Vacancies and Newly Created

June 22, 2020 EX-10.1

Offer Letter dated June 22, 2020, between the Company and Keith A. Harvey

Exhibit 10.1 June 22, 2020 Mr. Keith A. Harvey President and Chief Operating Officer Kaiser Aluminum Corporation 27422 Portola Parkway, Suite 200 Foothill Ranch, California 92610 Dear Keith: I am pleased to confirm the terms of the company’s offer in connection with your promotion to President and Chief Executive Officer of Kaiser Aluminum Corporation reporting directly to the Kaiser Aluminum Corp

June 22, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Executive Leadership Succession

EX-99.1 4 exhibit991-pressreleas.htm PRESS RELEASE DATED JUNE 22, 2020 Exhibit 99.1 Kaiser Aluminum Corporation Announces Executive Leadership Succession FOOTHILL RANCH, Calif. -June 22, 2020 - Kaiser Aluminum Corporation (NASDAQ:KALU) today announced that its Board of Directors approved an executive leadership succession following a deliberate, multi-year succession planning process. Jack A. Hock

June 22, 2020 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

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): June 22, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer

June 11, 2020 8-K

Submission of Matters to a Vote of Security Holders

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): June 10, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer

May 15, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 0-52105 94-3030279 (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification No.) 27422 Portola Parkway, Suite 200 Foothill Ranch, California 92610-2831

May 5, 2020 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant þ Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confide

May 1, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 1, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commissi

May 1, 2020 EX-4.1

First Supplemental Indenture, dated May 1, 2020, among Kaiser Aluminum Corporation, each of the guarantors named therein and Wells Fargo Bank, National Association, as Trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K, filed by the Company on May 1, 2020, File No. 001-09447).

EX-4.1 Exhibit 4.1 FIRST SUPPLEMENTAL INDENTURE First Supplemental Indenture (this “Supplemental Indenture”), dated as of May 1, 2020, among Kaiser Aluminum Corporation, a Delaware corporation (the “Company”), certain of the Company’s direct and indirect subsidiaries parties hereto (each a “Subsidiary Guarantor” and collectively, the “Subsidiary Guarantors”) and Wells Fargo Bank, National Associat

April 29, 2020 8-K

Financial Statements and Exhibits, Other Events

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 29, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commi

April 29, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Proposed Private Placement of Additional Senior Notes

EX-99.1 Exhibit 99.1 Kaiser Aluminum Corporation Announces Proposed Private Placement of Additional Senior Notes FOOTHILL RANCH, Calif., April 29, 2020 (GLOBE NEWSWIRE) — Kaiser Aluminum Corporation (Nasdaq: KALU) announced today that it plans to offer an additional $50.0 million aggregate principal amount of senior notes due 2025 (the “notes”) in a private transaction that is exempt from the regi

April 29, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Pricing of Additional Senior Notes

EX-99.1 Exhibit 99.1 Kaiser Aluminum Corporation Announces Pricing of Additional Senior Notes FOOTHILL RANCH, Calif., April 29, 2020 (GLOBE NEWSWIRE) — Kaiser Aluminum Corporation (Nasdaq: KALU) announced today that it has priced an additional $50.0 million aggregate principal amount of 6.500% senior notes due 2025 (the “notes”) in a private transaction that is exempt from the registration require

April 29, 2020 8-K

Financial Statements and Exhibits, Other Events

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 29, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commi

April 29, 2020 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant þ Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confide

April 28, 2020 EX-4.1

Indenture, dated April 28, 2020, among Kaiser Aluminum Corporation, each of the guarantors named therein and Wells Fargo Bank, National Association, as Trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K, filed by the Company on April 28, 2020, File No. 001-09447).

EX-4.1 Exhibit 4.1 Execution Version KAISER ALUMINUM CORPORATION, as Issuer and the Guarantors named herein 6.500% Senior Notes due 2025 INDENTURE Dated as of April 28, 2020 WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee TABLE OF CONTENTS Page ARTICLE ONE DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 SECTION 101. Rules of Construction 1 SECTION 102. Definitions 2 SECTION 103. Compl

April 28, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 28, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commi

April 21, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 1-09447 KAISER ALUMINUM CORPORATI

April 21, 2020 EX-99.1

Kaiser Aluminum Corporation Announces Proposed Private Placement of New Senior Notes

EX-99.1 Exhibit 99.1 Kaiser Aluminum Corporation Announces Proposed Private Placement of New Senior Notes FOOTHILL RANCH, Calif., April 21, 2020 (GLOBE NEWSWIRE) — Kaiser Aluminum Corporation (Nasdaq: KALU) announced today that it plans to offer $300.0 million aggregate principal amount of senior notes due 2025 (the “notes”) in a private transaction that is exempt from the registration requirement

April 21, 2020 8-K

Financial Statements and Exhibits, Other Events

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 AND EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 21, 2020 KAISER ALUMINUM CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 1-09447 94-3030279 (State or Other Jurisdiction of Incorporation) (Commi

Other Listings
DE:KLU1 €65.00
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista