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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	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* Weili Dai & Sehat Sutardja (Last) (First) (Middle) 5488 MARVELL LANE (Street) SANTA CLARA CA 95054 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MARVELL TECHNOLOGY GROUP LTD [ MRVL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner X Officer (give title below) Other (specify below) Executive Vice President & CEO
	3. Date of Earliest Transaction (Month/Day/Year) 12/12/2005
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock								10,226,667	I	By Sutardja Family Partners(1)
Common Stock	12/12/2005		M		27,588	A	$18.25	26,153,746(2)	D
Common Stock	12/12/2005		S		27,588	D	$60.355	26,126,158(2)	D
Common Stock	12/14/2005		M		64,604	A	$18.25	26,190,762(2)	D
Common Stock	12/14/2005		S		64,604	D	$60.523	26,126,158(2)	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$12.005							(3)	06/06/2012	Common Stock	29,167(3)		29,167(3)	D
Stock Option (Right to Buy)	$12.005							(4)	06/06/2012	Common Stock	58,334(4)		58,334(4)	D
Stock Option (Right to Buy)	$18.25							(5)	12/26/2013	Common Stock	1,041,667(5)		1,041,667(5)	D
Stock Option (Right to Buy)	$18.25	12/12/2005		M			27,588	(6)	12/26/2013	Common Stock	1,964,210(6)	$0	1,964,210(6)	D
Stock Option (Right to Buy)	$18.25	12/14/2005		M			64,604	(6)	12/26/2013	Common Stock	1,899,606(6)	$0	1,899,606(6)	D

1. Name and Address of Reporting Person* Weili Dai & Sehat Sutardja (Last) (First) (Middle) 5488 MARVELL LANE (Street) SANTA CLARA CA 95054 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner X Officer (give title below) Other (specify below) Executive Vice President & CEO

1. Name and Address of Reporting Person* Sehat Sutardja & Weili Dai (Last) (First) (Middle) 5488 MARVELL LANE (Street) SANTA CLARA CA 95054 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner X Officer (give title below) Other (specify below) CEO / Executive Vice President

Explanation of Responses:

1. Ms. Weili Dai and Dr. Sehat Sutardja are the general partners of The Sutardja Family Partners, a California family limited partnership.

2. These securities are jointly owned by Ms. Weili Dai and Dr. Sehat Sutardja who are members of a "Group" for purposes Section 13(d) of the Exchange Act.

3. This Stock Option (Right to Buy) of 200,000 shares which vests as follows: 25% on 06/06/03, and 4,166.66 shares per month from 07/06/03 - 06/06/06. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Ms. Weili Dai and indirectly by her spouse, Dr. Sehat Sutardja.

4. This Stock Option (Right to Buy) of 400,000 shares which vests as follows: 25% on 06/06/03, and 8,333.32 shares per month from 07/06/03 - 06/06/06. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Dr. Sehat Sutardja and indirectly by his spouse, Ms. Weili Dai.

5. This Stock Option (Right to Buy) of 2,000,000 which vests as follows: 25% on 12/26/04, and 41,666 per month from 01/26/05 - 12/26/07. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Ms. Weili Dai and indirectly by her spouse, Dr. Sehat Sutardja.

6. This Stock Option (Right to Buy) of 3,000,000 shares which vests as follows: 25 % on 12/26/04, and 62,500 shares per month from 01/26/05 - 12/26/07. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Dr. Sehat Sutardja and indirectly by his spouse, Ms. Weili Dai.

Remarks:

	Weili Dai & Dr. Sehat Sutardja	12/14/2005
	** 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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