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Glencore AG

Disclosed activity across 2 companies

Tapewire entity
62949
SEC CIK
0001449539

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CENTURY ALUMINUM COCENX · Entity 394710% ownerMarch 04, 2026March 04, 2026
Li-Cycle Holdings Corp.LICY · Entity 7678010% ownerDecember 29, 2023December 29, 2023

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CENTURY ALUMINUM CO

Report date March 04, 2026 · Filed March 04, 2026

Jointly reported with GLENCORE INTERNATIONAL AG, Glencore plc

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect12,184,755 Reported balance After 2026-03-04 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2026-03-04 · Sale · Disposed 6,315,245 · Balance 12,184,755

F1: The Common Stock reported on Line 1 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.

Filing footnotes · ownership attribution and instrument terms

F1: The Common Stock reported on Line 1 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.

Li-Cycle Holdings Corp.

Report date December 29, 2023 · Filed December 29, 2023

Jointly reported with GLENCORE INTERNATIONAL AG, Glencore plc

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common SharesSEC Table I · non-derivativeIndirectSee Footnotes59,385 Reported balance Holding disclosure · report date 2023-12-29 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 59,385

F1: This form is being filed by each of the following reporting persons: Glencore AG, Glencore International AG and Glencore plc (collectively, the "Reporting Persons"). Glencore AG (and Glencore Ltd., which is a branch of Glencore AG) is a direct wholly-owned subsidiary of Glencore International AG and an indirect wholly-owned subsidiary of Glencore plc. Because of the relationships among the Reporting Persons, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, if any.

F2: Represents 18,072 common shares and 41,313 restricted stock units ("RSUs") awarded to Mr. Kunal Sinha under the Li-Cycle Holdings Corp. 2021 Incentive Award Plan. Each RSU represents the contingent right to receive one common share of the Issuer subject to time-vesting conditions in accordance with the underlying award and Mr. Sinha's continued service through such vesting date. Mr. Sinha is the Head of Recycling at Glencore plc and holds the securities reported herein for the benefit of the Reporting Persons, and may, after vesting, if applicable, transfer the securities directly to the Reporting Persons.

Convertible NotesSEC Table II · derivative / convertible securityDirectNot disclosed Reported balance Holding disclosure · report date 2023-12-29 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance Not disclosed

F6: The Conversion Price of the Convertible Notes is $9.95 per $1,000 principal amount of the Convertible Notes, subject to adjustment in accordance with the terms of the Convertible Notes.

F3: Currently exercisable.

F4: The Convertible Notes are due and payable on May 31, 2027 in an amount equal to the principal amount of the Convertible Notes outstanding on such date (plus any accrued but unpaid interest thereon), unless earlier converted, redeemed or repurchased.

F5: Represents the number of Common Shares of the Issuer issuable to Glencore Ltd., a branch of Glencore AG, as of December 29, 2023, upon conversion of all of the Convertible Notes held by Glencore Ltd. at the current conversion price (the "Conversion Price"), which is subject to adjustment. The Convertible Notes accrue interest payable semi-annually, either in cash or by payment-in-kind ("PIK"), in the Issuer's discretion. The Convertible Notes accrue interest at the forward-looking term rate based on the secured overnight financing rate for a tenor comparable to the relevant interest payment period plus 0.42826% (the "Floating Rate"), plus 5% per annum if interest is paid in cash and plus 6% per annum if interest is paid in PIK. The Floating Rate cannot be less than 1% per year nor more than 2% per year.

Filing footnotes · ownership attribution and instrument terms

F1: This form is being filed by each of the following reporting persons: Glencore AG, Glencore International AG and Glencore plc (collectively, the "Reporting Persons"). Glencore AG (and Glencore Ltd., which is a branch of Glencore AG) is a direct wholly-owned subsidiary of Glencore International AG and an indirect wholly-owned subsidiary of Glencore plc. Because of the relationships among the Reporting Persons, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, if any.

F2: Represents 18,072 common shares and 41,313 restricted stock units ("RSUs") awarded to Mr. Kunal Sinha under the Li-Cycle Holdings Corp. 2021 Incentive Award Plan. Each RSU represents the contingent right to receive one common share of the Issuer subject to time-vesting conditions in accordance with the underlying award and Mr. Sinha's continued service through such vesting date. Mr. Sinha is the Head of Recycling at Glencore plc and holds the securities reported herein for the benefit of the Reporting Persons, and may, after vesting, if applicable, transfer the securities directly to the Reporting Persons.

F3: Currently exercisable.

F4: The Convertible Notes are due and payable on May 31, 2027 in an amount equal to the principal amount of the Convertible Notes outstanding on such date (plus any accrued but unpaid interest thereon), unless earlier converted, redeemed or repurchased.

F5: Represents the number of Common Shares of the Issuer issuable to Glencore Ltd., a branch of Glencore AG, as of December 29, 2023, upon conversion of all of the Convertible Notes held by Glencore Ltd. at the current conversion price (the "Conversion Price"), which is subject to adjustment. The Convertible Notes accrue interest payable semi-annually, either in cash or by payment-in-kind ("PIK"), in the Issuer's discretion. The Convertible Notes accrue interest at the forward-looking term rate based on the secured overnight financing rate for a tenor comparable to the relevant interest payment period plus 0.42826% (the "Floating Rate"), plus 5% per annum if interest is paid in cash and plus 6% per annum if interest is paid in PIK. The Floating Rate cannot be less than 1% per year nor more than 2% per year.

F6: The Conversion Price of the Convertible Notes is $9.95 per $1,000 principal amount of the Convertible Notes, subject to adjustment in accordance with the terms of the Convertible Notes.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 04, 2026 Filed Mar 4, 2026 21:53 UTC CENTURY ALUMINUM CO CENX · Entity 3947 SaleCommon Stock 6,315,245 $51.75 $326,813,928.75
Disclosure

SEC source: 0001104659-26-023527 · tm268019-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,184,755

F1 · ownership.direct: The Common Stock reported on Line 1 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.

Read SEC document
November 10, 2025 Filed Nov 13, 2025 22:59 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 49,485.91 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 4,948,591 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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 was acquired on July 8, 2008 and has no expiration date.

F2 · price: 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 was acquired on July 8, 2008 and has no expiration date.

F2 · derivative.exercise_date: 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 was acquired on July 8, 2008 and has no expiration date.

F2 · derivative.expiration_date: 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 was acquired on July 8, 2008 and has no expiration date.

F1 · derivative.underlying_shares: Represents shares of Common Stock acquired upon the automatic conversion of 49,485.91 shares of Series A Convertible Preferred Stock upon the consummation of the transaction reported in Line 1 of Table 1.

F3 · ownership.nature: The shares of Common Stock reported in Line 2 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 1 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.

Read SEC document
November 10, 2025 Filed Nov 13, 2025 22:59 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 4,948,591 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · nonDerivative · entry 2

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 17,505,947

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Represents shares of Common Stock acquired upon the automatic conversion of 49,485.91 shares of Series A Convertible Preferred Stock upon the consummation of the transaction reported in Line 1 of Table 1.

F2 · price: 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 was acquired on July 8, 2008 and has no expiration date.

F3 · ownership.nature: The shares of Common Stock reported in Line 2 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 1 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.

Read SEC document
November 10, 2025 Filed Nov 13, 2025 22:59 UTC CENTURY ALUMINUM CO CENX · Entity 3947 SaleCommon Stock 9,000,000 $30.25 $272,250,000.00
Disclosure

SEC source: 0001104659-25-111519 · tm2531156-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,500,000

Read SEC document
September 30, 2025 Filed Oct 2, 2025 10:00 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 28.48 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-095789 · tm2527717-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,485.91

Underlying: Common Stock · 2,848 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 10:00 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 2,848 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-095789 · tm2527717-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,557,356

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 28.48 shares of Series A Convertible Preferred Stock on September 30, 2025.

F2 · price: 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 · ownership.nature: 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 12:23 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 164.77 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-065039 · tm2519591-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,514.39

Underlying: Common Stock · 16,477 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 12:23 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 16,477 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-065039 · tm2519591-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,554,508

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 164.77 shares of Series A Convertible Preferred Stock on June 30, 2025.

F2 · price: 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 · ownership.nature: 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.

Read SEC document
March 31, 2025 Filed Apr 1, 2025 11:57 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 35.93 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-030252 · tm2510907-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,679.16

Underlying: Common Stock · 3,593 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

Read SEC document
March 31, 2025 Filed Apr 1, 2025 11:57 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 3,593 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-030252 · tm2510907-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,538,031

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 35.93 shares of Series A Convertible Preferred Stock on March 31, 2025.

F2 · price: 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 · ownership.nature: 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.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 16:26 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 2,101.62 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-000640 · tm251829-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 49,715.09

Underlying: Common Stock · 210,162 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

Read SEC document
December 31, 2024 Filed Jan 3, 2025 16:26 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 210,162 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-25-000640 · tm251829-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,534,438

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 2,101.62 shares of Series A Convertible Preferred Stock on December 31, 2024.

F2 · price: 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 · ownership.nature: 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.

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September 30, 2024 Filed Oct 2, 2024 14:36 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 131.92 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-105269 · tm2425424-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 51,816.71

Underlying: Common Stock · 13,192 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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September 30, 2024 Filed Oct 2, 2024 14:36 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 13,192 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-105269 · tm2425424-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,324,276

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 131.92 shares of Series A Convertible Preferred Stock on September 30, 2024.

F2 · price: 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 · ownership.nature: 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.

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June 30, 2024 Filed Jul 2, 2024 14:26 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 290.14 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-077161 · tm2418649-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 51,948.63

Underlying: Common Stock · 29,014 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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June 30, 2024 Filed Jul 2, 2024 14:26 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 29,014 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-077161 · tm2418649-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,311,084

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 290.14 shares of Series A Convertible Preferred Stock on June 30, 2024.

F2 · price: 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 · ownership.nature: 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.

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March 31, 2024 Filed Apr 2, 2024 18:21 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 45.62 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-042414 · tm2410597-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 52,238.77

Underlying: Common Stock · 4,562 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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March 31, 2024 Filed Apr 2, 2024 18:21 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 4,562 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-042414 · tm2410597-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,282,070

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 45.62 shares of Series A Convertible Preferred Stock on March 31, 2024.

F2 · price: 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 · ownership.nature: 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.

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December 31, 2023 Filed Jan 3, 2024 16:57 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 1,223.93 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-000657 · tm241748-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 52,284.39

Underlying: Common Stock · 122,393 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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December 31, 2023 Filed Jan 3, 2024 16:57 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 122,393 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-000657 · tm241748-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,277,508

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 1,223.93 shares of Series A Convertible Preferred Stock on December 31, 2023.

F2 · price: 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 · ownership.nature: 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.

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September 30, 2023 Filed Oct 2, 2023 15:25 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 197.9 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-105760 · tm2327230-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 53,508.32

Underlying: Common Stock · 19,790 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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September 30, 2023 Filed Oct 2, 2023 15:25 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 19,790 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-105760 · tm2327230-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,155,115

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 197.90 shares of Series A Convertible Preferred Stock on September 30, 2023.

F2 · price: 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 · ownership.nature: 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.

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June 30, 2023 Filed Jul 5, 2023 13:16 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 148.36 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-077837 · tm2320564-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 53,706.22

Underlying: Common Stock · 14,836 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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June 30, 2023 Filed Jul 5, 2023 13:16 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 14,836 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-077837 · tm2320564-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 12,135,325

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 148.36 shares of Series A Convertible Preferred Stock on June 30, 2023.

F2 · price: 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 · ownership.nature: 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.

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December 31, 2022 Filed Jan 4, 2023 16:09 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 4,191.68 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-000701 · tm231615-1_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 53,854.58

Underlying: Common Stock · 419,168 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.nature: 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.

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December 31, 2022 Filed Jan 4, 2023 16:09 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 419,168 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-23-000701 · tm231615-1_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 12,120,489

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 4,191.68 shares of Series A Convertible Preferred Stock on December 31, 2022.

F2 · price: 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 · ownership.nature: 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.

Read SEC document
December 15, 2022 Filed Dec 16, 2022 11:01 UTC CENTURY ALUMINUM CO CENX · Entity 3947 OtherCall Option (right to buy) · Derivative 1 Not disclosed Strike: $100.00 Not disclosed
Disclosure

SEC source: 0001104659-22-127501 · tm2232820-2_4seq1.xml · derivative · entry 5

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 27,500,000 shares

Expires 2027-09-14

F4 · derivative.exercise_price: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F1 · kind: On September 14, 2017, Glencore AG, a wholly-owned subsidiary of Glencore International AG, entered into a series of transactions (the "2017 Transactions") with Ryfold Limited ("Ryfold") and Givolon Limited, currently a wholly-owned subsidiary of Ryfold ("Givolon"), in connection with a financing (the "Financing") to be secured by a pledge by Givolon of 27,500,000 shares of Common Stock (the "Specified Shares").

F2 · kind: The 2017 Transactions included (i) Glencore AG's sale to Givolon of the Specified Shares at a per share price of $18.03075, and (ii) the acquisition by Glencore AG from Givolon, for a premium of $15.32613 per share, of the American-style call option reported on Line 1 of Table II, which gives Glencore AG the right to purchase from Givolon, at any time prior to the expiration thereof, a number of shares of Common Stock equal to the Specified Shares at a price equal to $2.70462 per share of Common Stock (the "Century Call Option").

F3 · kind: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F4 · kind: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F5 · kind: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F5 · price: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F4 · derivative.underlying_shares: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F6 · derivative.underlying_shares: The Common Stock reported in Line 2 of Table I and the Century Call Option, Century TRS and Givolon Call Option reported in Table II are held directly by Glencore AG, a wholly owned subsidiary of Glencore International AG, and indirectly by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG.

F6 · ownership.nature: The Common Stock reported in Line 2 of Table I and the Century Call Option, Century TRS and Givolon Call Option reported in Table II are held directly by Glencore AG, a wholly owned subsidiary of Glencore International AG, and indirectly by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG.

F7 · ownership.nature: 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.

Read SEC document
December 15, 2022 Filed Dec 16, 2022 11:01 UTC CENTURY ALUMINUM CO CENX · Entity 3947 OtherTotal Return Swap (right to buy) · Derivative 1 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-127501 · tm2232820-2_4seq1.xml · derivative · entry 4

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 27,500,000 shares

Expires 2022-12-31

F3 · derivative.exercise_price: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F1 · kind: On September 14, 2017, Glencore AG, a wholly-owned subsidiary of Glencore International AG, entered into a series of transactions (the "2017 Transactions") with Ryfold Limited ("Ryfold") and Givolon Limited, currently a wholly-owned subsidiary of Ryfold ("Givolon"), in connection with a financing (the "Financing") to be secured by a pledge by Givolon of 27,500,000 shares of Common Stock (the "Specified Shares").

F2 · kind: The 2017 Transactions included (i) Glencore AG's sale to Givolon of the Specified Shares at a per share price of $18.03075, and (ii) the acquisition by Glencore AG from Givolon, for a premium of $15.32613 per share, of the American-style call option reported on Line 1 of Table II, which gives Glencore AG the right to purchase from Givolon, at any time prior to the expiration thereof, a number of shares of Common Stock equal to the Specified Shares at a price equal to $2.70462 per share of Common Stock (the "Century Call Option").

F3 · kind: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F4 · kind: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F5 · kind: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F5 · price: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F3 · derivative.underlying_shares: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F6 · ownership.nature: The Common Stock reported in Line 2 of Table I and the Century Call Option, Century TRS and Givolon Call Option reported in Table II are held directly by Glencore AG, a wholly owned subsidiary of Glencore International AG, and indirectly by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG.

F7 · ownership.nature: 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.

Read SEC document
December 15, 2022 Filed Dec 16, 2022 11:01 UTC CENTURY ALUMINUM CO CENX · Entity 3947 OtherCall Option (right to buy) · Derivative 1 Not disclosed Strike: $2.70 Not disclosed
Disclosure

SEC source: 0001104659-22-127501 · tm2232820-2_4seq1.xml · derivative · entry 3

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 27,500,000 shares

Expires 2022-12-31

F1 · kind: On September 14, 2017, Glencore AG, a wholly-owned subsidiary of Glencore International AG, entered into a series of transactions (the "2017 Transactions") with Ryfold Limited ("Ryfold") and Givolon Limited, currently a wholly-owned subsidiary of Ryfold ("Givolon"), in connection with a financing (the "Financing") to be secured by a pledge by Givolon of 27,500,000 shares of Common Stock (the "Specified Shares").

F2 · kind: The 2017 Transactions included (i) Glencore AG's sale to Givolon of the Specified Shares at a per share price of $18.03075, and (ii) the acquisition by Glencore AG from Givolon, for a premium of $15.32613 per share, of the American-style call option reported on Line 1 of Table II, which gives Glencore AG the right to purchase from Givolon, at any time prior to the expiration thereof, a number of shares of Common Stock equal to the Specified Shares at a price equal to $2.70462 per share of Common Stock (the "Century Call Option").

F3 · kind: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F4 · kind: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F5 · kind: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F5 · price: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F6 · ownership.nature: The Common Stock reported in Line 2 of Table I and the Century Call Option, Century TRS and Givolon Call Option reported in Table II are held directly by Glencore AG, a wholly owned subsidiary of Glencore International AG, and indirectly by Glencore International AG. The Common Stock reported on Line 1 of Table I is held directly by Glencore International AG.

F7 · ownership.nature: 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.

Read SEC document
December 15, 2022 Filed Dec 16, 2022 11:01 UTC CENTURY ALUMINUM CO CENX · Entity 3947 OtherCommon Stock 27,500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-127501 · tm2232820-2_4seq1.xml · nonDerivative · entry 1

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore AG · CIK 0001449539 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,500,000

F1 · kind: On September 14, 2017, Glencore AG, a wholly-owned subsidiary of Glencore International AG, entered into a series of transactions (the "2017 Transactions") with Ryfold Limited ("Ryfold") and Givolon Limited, currently a wholly-owned subsidiary of Ryfold ("Givolon"), in connection with a financing (the "Financing") to be secured by a pledge by Givolon of 27,500,000 shares of Common Stock (the "Specified Shares").

F2 · kind: The 2017 Transactions included (i) Glencore AG's sale to Givolon of the Specified Shares at a per share price of $18.03075, and (ii) the acquisition by Glencore AG from Givolon, for a premium of $15.32613 per share, of the American-style call option reported on Line 1 of Table II, which gives Glencore AG the right to purchase from Givolon, at any time prior to the expiration thereof, a number of shares of Common Stock equal to the Specified Shares at a price equal to $2.70462 per share of Common Stock (the "Century Call Option").

F3 · kind: The 2017 Transactions also included the stock-settled total return swap reported on Line 2 of Table II, which will automatically terminate if the Century Call Option is exercised, pursuant to which Glencore AG received economic exposure to a number of shares of Common Stock equal to the Specified Shares and upon settlement of which Givolon will be obligated to deliver a number of shares equal to the Specified Shares to Glencore AG and Glencore AG will be obligated to pay to Givolon the reference price of $18.03075 per share (the "Century TRS").

F4 · kind: The 2017 Transactions additionally included (i) Glencore AG's sale to Ryfold of 100% of the equity interest in Givolon for an aggregate price of $100, and (ii) the acquisition by Glencore AG from Ryfold, for aggregate premium of $100, of the American-style call option reported on Line 3 of Table II, which gives Glencore AG the right to purchase from Ryfold, at any time prior to the expiration thereof, 100% of the equity interests in Givolon for an aggregate exercise price of $100 (the "Givolon Call Option").

F5 · kind: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

F5 · price: In connection with the termination of the Financing and the related pledge, on December 15, 2022 Glencore AG, Givolon and Ryfold terminated and cancelled the 2017 Transactions, including the Century Call Option, the Century TRS and the Givolon Call Option, and Givolon transferred the Specified Shares to Glencore AG's parent, Glencore International AG.

Read SEC document
September 30, 2022 Filed Oct 3, 2022 16:47 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 329.82 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-105069 · tm2227260-1_4seq1.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,046.26

Underlying: Common Stock · 32,982 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

Read SEC document
September 30, 2022 Filed Oct 3, 2022 16:47 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 32,982 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-105069 · tm2227260-1_4seq1.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,701,321

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 329.82 shares of Series A Convertible Preferred Stock on September 30, 2022.

F2 · price: 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 · ownership.direct: 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.

Read SEC document
June 30, 2022 Filed Jul 1, 2022 14:52 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 16,635 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-076639 · tm2220262-1_4seq1.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,668,339

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 166.35 shares of Series A Convertible Preferred Stock on June 30, 2022.

F2 · price: 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 · ownership.direct: 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.

Read SEC document
December 31, 2021 Filed Jan 4, 2022 11:03 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 4,731.31 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-000613 · tm221440d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,542.43

Underlying: Common Stock · 473,131 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

Read SEC document
December 31, 2021 Filed Jan 4, 2022 11:03 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 473,131 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-22-000613 · tm221440d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,651,704

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 4,731.31 shares of Series A Convertible Preferred Stock on December 31, 2021.

F2 · price: 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 · ownership.direct: 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.

Read SEC document
June 30, 2021 Filed Jul 1, 2021 14:50 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 177.68 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-088084 · tm2121229d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,273.74

Underlying: Common Stock · 17,768 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

Read SEC document
June 30, 2021 Filed Jul 1, 2021 14:50 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 17,768 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-088084 · tm2121229d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,178,573

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 177.68 shares of Series A Convertible Preferred Stock on June 30, 2021.

F2 · price: 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 · ownership.direct: 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.

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March 31, 2021 Filed Apr 1, 2021 13:32 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 136.97 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-045284 · tm2111862d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,451.42

Underlying: Common Stock · 13,697 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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March 31, 2021 Filed Apr 1, 2021 13:32 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 13,697 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-045284 · tm2111862d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,160,805

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 136.97 shares of Series A Convertible Preferred Stock on March 31, 2021.

F2 · price: 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 · ownership.direct: 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.

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December 31, 2020 Filed Jan 5, 2021 15:08 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 2,450.27 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-000681 · tm211646d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,588.39

Underlying: Common Stock · 245,027 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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December 31, 2020 Filed Jan 5, 2021 15:08 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 245,027 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-21-000681 · tm211646d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,147,108

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 2,450.27 shares of Series A Convertible Preferred Stock on December 31, 2020.

F2 · price: 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 · ownership.direct: 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.

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June 30, 2020 Filed Jul 2, 2020 17:44 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 102.43 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-080353 · tm2024033d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,038.66

Underlying: Common Stock · 10,243 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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June 30, 2020 Filed Jul 2, 2020 17:44 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 10,243 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-080353 · tm2024033d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,902,081

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 102.43 shares of Series A Convertible Preferred Stock on June 30, 2020.

F2 · price: 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 · ownership.direct: 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.

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March 31, 2020 Filed Apr 2, 2020 15:08 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 1,181.46 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-042277 · tm2014829d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,141.09

Underlying: Common Stock · 118,146 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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March 31, 2020 Filed Apr 2, 2020 15:08 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 118,146 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-042277 · tm2014829d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,891,838

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 1,181.46 shares of Series A Convertible Preferred Stock on March 31, 2020.

F2 · price: 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 · ownership.direct: 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.

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December 31, 2019 Filed Jan 3, 2020 14:51 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 1,252.65 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-000590 · tm201158d1_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,322.55

Underlying: Common Stock · 125,265 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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December 31, 2019 Filed Jan 3, 2020 14:51 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 125,265 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-20-000590 · tm201158d1_4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,773,692

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 1,252.65 shares of Series A Convertible Preferred Stock on December 31, 2019.

F2 · price: 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 · ownership.direct: 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.

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June 30, 2019 Filed Jul 2, 2019 14:03 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 369.11 Not disclosed Not disclosed
Disclosure

SEC source: 0001144204-19-033488 · tv524707_from4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,575.2

Underlying: Common Stock · 36,911 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

Read SEC document
June 30, 2019 Filed Jul 2, 2019 14:03 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionCommon Stock 36,911 Not disclosed Not disclosed
Disclosure

SEC source: 0001144204-19-033488 · tv524707_from4.xml · nonDerivative · entry 1

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,648,427

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Represents shares of Common Stock acquired upon conversion of 369.11 shares of Series A Convertible Preferred Stock on June 30, 2019.

F2 · price: 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 · ownership.direct: 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.

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March 31, 2019 Filed Apr 2, 2019 12:34 UTC CENTURY ALUMINUM CO CENX · Entity 3947 ConversionSeries A Convertible Preferred Stock · Derivative 3,022.55 Not disclosed Not disclosed
Disclosure

SEC source: 0001144204-19-017594 · tv517875_4.xml · derivative · entry 2

Glencore AG · CIK 0001449539 · 10% owner

GLENCORE INTERNATIONAL AG · CIK 0001032383 · 10% owner

Glencore plc · CIK 0001521365 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,944.31

Underlying: Common Stock · 302,255 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · price: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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 · ownership.direct: 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.