Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
LOWE KENNETH A
   2. Issuer Name and Ticker or Trading Symbol
SIGMA DESIGNS INC [SIGM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP of Strategic Marketing
(Last)
(First)
(Middle)
1778 MCCARTHY BLVD.		 3. Date of Earliest Transaction (Month/Day/Year)
03/13/2008
(Street)

MILPITAS, CA 95035		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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 03/13/2008   M   2,084 A $ 9.89 2,084 D  
Common Stock 03/13/2008   M   1,666 A $ 5.43 3,750 D  
Common Stock 03/13/2008   M   2,083 A $ 3.4 5,833 D  
Common Stock 03/13/2008   M   1,000 A $ 1.69 6,833 D  
Common Stock 03/13/2008   S   6,833 D $ 22.2 0 D (1)  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: 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
Employee Stock Option (Right to Buy) $ 9.89 03/13/2008   M     2,084   (2)   (3) Common Stock 2,084 $ 0 14,167 D  
Employee Stock Option (Right to Buy) $ 5.43 03/13/2008   M     1,666   (4)   (5) Common Stock 1,666 $ 0 8,334 D  
Employee Stock Option (Right to Buy) $ 3.4 03/13/2008   M     2,083   (6)   (7) Common Stock 2,083 $ 0 834 D  
Employee Stock Option (Right to Buy) $ 1.69 03/13/2008   M     1,000   (8) 03/15/2008 Common Stock 1,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
LOWE KENNETH A
1778 MCCARTHY BLVD.
MILPITAS, CA 95035		       VP of Strategic Marketing  

Signatures

 /s/ Kenneth Lowe   03/14/2008
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.
(2) The 25,000 shares initially underlying this option began vesting on 10/28/2005 and vest as follows: (i) 20% on 10/18/2006; and (ii) the remaining 80% in equal monthly installments over the ensuing 48 months following 10/28/2006.
(3) The reported option expires in accordance with the following schedule: (a) the right to buy 2,084 shares expires on 3/15/2008; (b) the right to buy 5,000 shares expires on 3/15/2009; (c) the right to buy 5,000 shares expires on 3/15/2010; and (d) the right to buy the remaining 4,167 shares expires on 3/15/2011.
(4) The 25,000 shares initially underlying this option began vesting on 8/9/2004 and vest as follows: (i) 20% on 8/9/2005; and (ii) the remaining 80% in equal monthly installments over the ensuing 48 months following 8/9/2005.
(5) The reported option expires in accordance with the following schedule: (a) the right to buy 1,666 shares expires on 3/15/2008; (b) the right to buy 5,000 shares expires on 3/15/2009; and (c) the right to buy the remaining 3,334 shares expires on 3/15/2010.
(6) The 25,000 shares initially underlying this option began vesting on 2/20/2003 and vest as follows: (i) 20% on 2/20/2004; and (ii) the remaining 80% in equal monthly installments over the ensuing 48 months following 2/20/2004.
(7) The reported option expires in accordance with the following schedule: (a) the right to buy 2,083 shares expires on 3/15/2008; and (b) the right to buy the remaining 834 shares expires on 3/15/2009.
(8) The 20,000 shares initially underlying this option began vesting on 10/18/2002 and vest as follows: (i) 20% on 10/18/2003; and (ii) the remaining 80% in equal monthly installments over the ensuing 48 months following 10/18/2003.

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