SEC FORM 4

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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

1. Name and Address of Reporting Person^*

DAVIS CRAIG A

(Last)

(First)

(Middle)

2511 GARDEN ROAD

BUILDING A, SUITE 200

(Street)

MONTEREY

(City)

(State)

(Zip)

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

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

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	CEO, Chairman of the Board

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2004

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	09/03/2004		M		24,054	A	$13	218,884	D
Common Stock	09/03/2004		S		24,054	D	⁽¹⁾	194,830	D
Common Stock	09/07/2004		M		80,968	A	$13	275,798	D
Common Stock	09/07/2004		S		80,968	D	⁽²⁾	194,830	D
Common Stock	09/08/2004		M		21,978	A	$13	216,808	D
Common Stock	09/08/2004		S		21,978	D	⁽⁵⁾	194,830	D
Common Stock	09/08/2004		S		3,000	D	$24.747	191,830	D
Common Stock	09/08/2004		S		2,000	D	$24.725	189,830	D
Common Stock								4,430.701	I	By 401(k) Plan⁽⁴⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (Right to Buy)	$13	09/03/2004		M			24,054	⁽³⁾	03/28/2006	Common Stock	24,054	$13	125,946	D
Employee Stock Option (Right to Buy)	$13	09/07/2004		M			80,968	⁽³⁾	03/28/2006	Common Stock	80,968	$13	44,978	D
Employee Stock Option (Right to Buy)	$13	09/08/2004		M			21,978	⁽³⁾	03/28/2006	Common Stock	21,978	$13	23,000	D

Explanation of Responses:

1. These shares were sold within a range of $24.50 to $24.62 per share as follows: (i) 346 shares were sold at $24.62; (ii) 115 shares were sold at $24.60; (iii) 231 shares were sold at $24.56; (iv) 3,403 shares were sold at $24.55; (v) 1,731 shares were sold at $24.54; (vi) 577 shares were sold at $24.53; (vii) 4,038 shares were sold at $24.5201; (viii) 2,422 shares were sold at $24.52; (ix) 2,250 shares were sold at $24.5132; (x) 3,461 shares were sold at $24.51; and (xi) 5,480 shares were sold at $24.50.

2. These shares were sold within a range of $24.50 to $24.68 per share as follows: (i) 2,884 shares were sold at $24.68; (ii) 1,731 shares were sold at $24.641; (iii) 1,154 shares were sold at $24.627; (iv) 2,422 shares were sold at $24.614; (v) 5,076 shares were sold at $24.61; (vi) 1,769 shares were sold at $24.589; (vii) 865 shares were sold at $24.56; (viii) 4,615 shares were sold at $24.556; (ix) 1,154 shares were sold at $24.555; (x) 692 shares were sold at $24.545; (xi) 4,788 shares were sold at $24.541; (xii) 750 shares were sold at $24.537; (xiii) 5,768 shares were sold at $24.522; (xiv) 2,423 shares were sold at $24.52; (xv) 9,345 shares were sold at $24.518; (xvi) 4,961 shares were sold at $24.516; (xvii) 1,211 shares were sold at $24.513; (xviii) 3,634 shares were sold at $24.51; (xix) 5,018 shares were sold at $24.503; (xx) 20,708 shares were sold at $24.50.

3. March 28, 1996 grant of Non-Qualified Employee Stock Options. Options vested and became exercisable in three equal installments on each of (i) the date of grant; (ii) the first anniversary of the date of grant; and (iii) the second anniversary of the date of grant.

4. Based on a plan statement as of August 20, 2004.

5. These shares were sold within a range of $24.50 to $24.68 per share as follows: (i) 457 shares were sold at $24.68; (ii) 685 shares were sold at $24.672; (iii) 183 shares were sold at $24.64; (iv) 1,462 shares were sold at $24.633; (v) 685 shares were sold at $24.63; (vi) 549 shares were sold at $24.62; (vii) 503 shares were sold at $24.613; (viii) 685 shares were sold at $24.61; (ix) 731 shares were sold at $24.592; (x) 457 shares were sold at $24.578; (xi) 412 shares were sold at $24.56; (xii) 2,285 shares were sold at $24.55; (xiii) 1,279 shares were sold at $24.548; (xiv) 548 shares were sold at $24.54; (xv) 1,006 shares were sold at $24.539; (xvi) 594 shares were sold at $24.538; (xvii) 1,736 shares were sold at $24.533; (xviii) 731 shares were sold at $24.532; (xix) 457 shares were sold at $24.525; (xx) 822 shares were sold at $24.523; (xxi) 1,142 shares were sold at $24.52; (xxii) 822 shares were sold at $24.516; and (xxiii) 3,747 shares were sold at $24.50.

	/s/ Craig A. Davis	09/08/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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