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^*

BECKLEY DAVID W

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Executive VP and CFO

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		12,823	A	$13	53,029	D
Common Stock	09/03/2004		S		10,323	D	⁽¹⁾	42,706	D
Common Stock	09/07/2004		M		34,747	A	$13	77,453	D
Common Stock	09/07/2004		S		34,747	D	⁽²⁾	42,706	D
Common Stock	09/07/2004		M		23,000	A	$13	65,706	D
Common Stock	09/08/2004		M		9,430	A	$13	75,136	D
Common Stock	09/08/2004		S		9,430	D	⁽⁵⁾	65,706	D
Common Stock								2,263.496	I	By 401(k) Plan⁽⁶⁾

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			12,823	⁽³⁾	03/28/2006	Common Stock	12,823	$13	67,177	D
Employee Stock Option (Right to Buy)	$13	09/07/2004		M			34,747	⁽³⁾	03/28/2006	Common Stock	34,747	$13	32,430	D
Employee Stock Option (Right to Buy)	$13	09/07/2004		M			23,000	⁽⁴⁾	03/28/2006	Common Stock	23,000	$13	9,430	D
Employee Stock Option (Right to Buy)	$13	09/08/2004		M			9,430	⁽³⁾	03/28/2006	Common Stock	9,430	$13	0	D

Explanation of Responses:

1. These shares were sold within a range of $24.50 to $24.62 per share as follows: (i) 149 shares were sold at $24.62; (ii) 50 shares were sold at $24.60; (iii) 99 shares were sold at $24.56; (iv) 1,461 shares were sold at $24.55; (v) 742 shares were sold at $24.54; (vi) 247 shares were sold at $24.53; (vii) 1,733 shares were sold at $24.5201; (viii) 1,040 shares were sold at $24.52; (ix) 965 shares were sold at $24.5132; (x) 1,485 shares were sold at $24.51; and (xi) 2,352 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) 1,238 shares were sold at $24.68; (ii) 742 shares were sold at $24.641; (iii) 495 shares were sold at $24.627; (iv) 1,040 shares were sold at $24.614; (v) 2,179 shares were sold at $24.61; (vi) 759 shares were sold at $24.589; (vii) 371 shares were sold at $24.56; (viii) 1,980 shares were sold at $24.556; (ix) 495 shares were sold at $24.555; (x) 297 shares were sold at $24.545; (xi) 2,054 shares were sold at $24.541; (xii) 322 shares were sold at $24.537; (xiii) 2,475 shares were sold at $24.522; (xiv) 1,040 shares were sold at $24.52; (xv) 4,010 shares were sold at $24.518; (xvi) 2,129 shares were sold at $24.516; (xvii) 520 shares were sold at $24.513; (xviii) 1,560 shares were sold at $24.51; (xix) 2,154 shares were sold at $24.503; (xx) 8,887 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. March 28, 1996 grant of Incentive 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.

5. These shares were sold within a range of $24.50 to $24.68 per share as follows: (i) 196 shares were sold at $24.68; (ii) 294 shares were sold at $24.672; (iii) 78 shares were sold at $24.64; (iv) 628 shares were sold at $24.633; (v) 294 shares were sold at $24.63; (vi) 235 shares were sold at $24.62; (vii) 216 shares were sold at $24.613; (viii) 294 shares were sold at $24.61; (ix) 314 shares were sold at $24.592; (x) 196 shares were sold at $24.578; (xi) 176 shares were sold at $24.56; (xii) 980 shares were sold at $24.55; (xiii) 549 shares were sold at $24.548; (xiv) 235 shares were sold at $24.54; (xv) 431 shares were sold at $24.539; (xvi) 255 shares were sold at $24.538; (xvii) 745 shares were sold at $24.533; (xviii) 314 shares were sold at $24.532; (xix) 196 shares were sold at $24.525; (xx) 353 shares were sold at $24.523; (xxi) 490 shares were sold at $24.52; (xxii) 353 shares were sold at $24.516; and (xxiii) 1,608 shares were sold at $24.50.

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

	/s/ David W. Beckley	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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