Robert F Hoffman Form 3 CENTURY ALUMINUM / Robert F Hoffman ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Hoffman Robert F

(Last) (First) (Middle)

1 S. WACKER DRIVE

SUITE 1000

(Street)

CHICAGO IL 60606

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
05/26/2021

3. Issuer Name and Ticker or Trading Symbol
CENTURY ALUMINUM CO [ CENX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
Principal Accounting Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	25,545(1)	D
Common Stock	14.5476(2)	I	By 401(k) plan

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 21,565 unvested time vesting share units granted to the Reporting Person pursuant to Issuer's 2019-2021, 2020-2022 and 2021-2023 Long-Term Incentive Plans under Rule 16b-3(d), 7,426 of which vest on December 31, 2021, 8,454 of which vest on December 31, 2022, and 5,685 of which vest on December 31, 2023.

2. As reported by 401(k) plan trustee on June 9, 2021.

Remarks:

	/s/ John DeZee, attorney-in-fact for Mr. Hoffman	06/09/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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