GLENCORE INTERNATIONAL AG - 31 Dec 2022 Form 4 Insider Report for CENTURY ALUMINUM CO (CENX)

Role: 10%+ Owner
Signature: GLENCORE AG: By: /s/ Stephan Huber; Name: Stephan Huber; Title: Director
Issuer symbol: CENX
Transactions as of: 31 Dec 2022
Net transactions value: $0
Form type: 4
Filing time: 04 Jan 2023, 10:09:48 UTC
Previous filing: 16 Dec 2022
Next filing: 05 Jul 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CENX	Common Stock	Conversion of derivative security		+419,168	+3.6%		12,120,489	31 Dec 2022	See footnote	F1, F2, F3
holding	CENX	Common Stock						27,500,000	31 Dec 2022	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CENX	Series A Convertible Preferred Stock	Conversion of derivative security		-4,192	-7.2%		53,855	31 Dec 2022	Common Stock	419,168		See footnote	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of Common Stock acquired upon conversion of 4,191.68 shares of Series A Convertible Preferred Stock on December 31, 2022.
F2	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.
F3	The shares of Common Stock reported in Line 1 of 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 may be deemed to be indirectly beneficially owned by Glencore International AG. The Common Stock reported on Line 2 of Table I is held directly by Glencore International AG. Glencore International AG is wholly owned by Glencore plc, which may be deemed an indirect beneficial owner of the securities held by Glencore AG and Glencore International AG.