Glencore International Form 4 CENTURY ALUMINUM / INTERNATIONAL AG GLENCORE ownership change

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Glencore AG

(Last) (First) (Middle)

BAARERMATTSTRASSE 3

PO BOX 1301

(Street)

BAAR V8 CH-6341

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2018

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/31/2018		C		13,343	A	(1)(2)	10,082,856	D(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series A Convertible Preferred Stock	(2)	03/31/2018		C			133.43	(2)	(2)	Common Stock	13,343	(2)	74,230.91	D(3)

1. Name and Address of Reporting Person^*

Glencore AG

(Last) (First) (Middle)

BAARERMATTSTRASSE 3

PO BOX 1301

(Street)

BAAR V8 CH-6341

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

GLENCORE INTERNATIONAL AG

(Last) (First) (Middle)

BAARERMATTSTRASSE 3

P O BOX 555 CH 6341 BAAR

(Street)

SWITZERLAND

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Glencore plc

(Last) (First) (Middle)

BAARERMATTSTRASSE 3

P.O. BOX 777

(Street)

BAAR V8 CH-6341

(City) (State) (Zip)

Explanation of Responses:

1. Represents shares of Common Stock acquired upon conversion of 133.43 shares of Series A Convertible Preferred Stock on March 31, 2018.

2. Each share of Series A Convertible Preferred Stock is convertible into 100 shares of Common Stock at the times and under the circumstances described in the Certificate of Designation for the Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock has no expiration date.

3. The shares of Common Stock reported in Table I and the shares of Series A Convertible Preferred Stock reported in Table II are held directly by Glencore AG, a direct wholly-owned subsidiary of Glencore International AG, and indirectly by Glencore International AG and its parent, Glencore plc.

	GLENCORE AG: /s/ David Streule, Officer	04/03/2018
	GLENCORE AG: /s/ Martin Haering, Director	04/03/2018
	GLENCORE INTERNATIONAL AG: /s/ Robin Scheiner, Officer	04/03/2018
	GLENCORE INTERNATIONAL AG: /s/ Andreas Hubmann, Director	04/03/2018
	GLENCORE PLC: /s/ Ivan Glasenberg, CEO	04/03/2018
	** 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 4 (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).
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