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^*

CHANG JUNG HERNG

(Last)

(First)

(Middle)

1090 EAST ARQUES AVENUE

(Street)

SUNNYVALE

94085-4601

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
TRIDENT MICROSYSTEMS INC [ TRID ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President,Trident Technologies

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2005

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	08/01/2005		M		37,500	A	$5.1667	100,610	D
Common Stock	08/02/2005		M		15,000	A	$5.1667	115,610	D
Common Stock	08/02/2005		M		15,000	A	$2.0533	130,610	D
Common Stock	08/02/2005		M		30,000	A	$2.0533	160,610	D
Common Stock	08/01/2005		S		37,500	D	$32.99	123,110	D
Common Stock	08/02/2005		S		15,000	D	$33.99	108,110	D
Common Stock	08/02/2005		S		15,000	D	$33.99	93,110	D
Common Stock	08/02/2005		S		30,000	D	$34.9919	63,110	D

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)	$5.1667⁽¹⁾	08/01/2005		M			37,500⁽¹⁾	10/27/2000⁽²⁾	10/27/2009	Common Stock	37,500⁽¹⁾	$0	15,000⁽¹⁾	D
Employee Stock Option (right to buy)	$5.1667⁽¹⁾	08/02/2005		M			15,000⁽¹⁾	10/27/2000⁽²⁾	10/27/2009	Common Stock	15,000⁽¹⁾	$0	0	D
Employee Stock Option (right to buy)	$2.0533⁽³⁾	08/02/2005		M			15,000⁽³⁾	09/21/2003⁽⁴⁾	09/21/2012	Common Stock	15,000⁽³⁾	$0	30,000⁽³⁾	D
Employee Stock Option (right to buy)	$2.0533⁽³⁾	08/02/2005		M			30,000⁽³⁾	09/21/2003⁽⁴⁾	09/21/2012	Common Stock	30,000⁽³⁾	$0	0	D

Explanation of Responses:

1. This option was previously reported as an option for 35,000 shares of common stock and the exercise price for 35,000 shares was $7.75, but has been adjusted to reflect a stock dividend paid on 12/12/03 of one additional share for every two outstanding shares of common stock held by the reporting person on record date of 11/26/03.

2. Option vests in two equal annual installments beginning on 10/27/2000.

3. This option was previously reported as an option for 30,000 shares of common stock and the exercise price for 30,000 shares was $3.08, but has been adjusted to reflect a stock dividend paid on 12/12/03 of one aditional share for every two outstanding shares of common stock held by the reporting person on record date of 11/26/03.

4. Option vests in two equal annual installments beginning on 9/21/03.

Remarks:

	Jung-Herng Chang	08/03/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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