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

Date of report (Date of earliest event reported): February 8, 2021

Century Aluminum Company
(Exact Name of Registrant as Specified in Charter)
(State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)
One South Wacker Drive
Suite 1000
(Address of Principal Executive Offices)
(Zip Code)
(Registrant's telephone number, including area code)
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR   240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class:Trading Symbol(s)Name of each exchange on which registered:
Common Stock, $0.01 par value per shareCENX
Nasdaq Stock Market LLC
(Nasdaq Global Select Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b– 2 of the Securities Exchange Act of 1934 (§ 240.12b–2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

On February 8, 2021, John Hoerner, Executive Vice President, North American Operations of Century Aluminum Company (the "Company") informed the Company of his decision to retire from the Company effective October 31, 2021. In connection with his retirement announcement, Mr. Hoerner has stepped down from his position as Executive Vice President, North American Operations, effective immediately, but will remain with the Company through his retirement date to assist with the transition.

The Company also announced that Gunnar Gudlaugsson, who is currently serving as Vice President, European Operations of the Company and Managing Director of the Company's wholly-owned subsidiary, Nordural Grundartangi ehf., will be promoted to the role of Executive Vice President, Global Operations, effective immediately.

A copy of the press release issued by the Company on February 9, 2021 announcing the retirement of Mr. Hoerner and appointment of Mr. Gudlaugsson is attached hereto as Exhibit 99.1.
Item 9.01.  Financial Statements and Exhibits.
(d)  Exhibits

Exhibit Number Description
104Cover Page Interactive Data File (embedded within the Inline XBRL document)


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

Date:February 12, 2021By:/s/ Jesse E. Gary
  Name:Jesse E. Gary
Title:Executive Vice President, Chief Operating Officer, General Counsel and Secretary