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 *
KNITTEL RUSSELL J
   2. Issuer Name and Ticker or Trading Symbol
SYNAPTICS INC [SYNA] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr VP, CFO, CAO and Secretary
(Last)
(First)
(Middle)
3120 SCOTT BLVD., STE. 130		 3. Date of Earliest Transaction (Month/Day/Year)
09/17/2007
(Street)

SANTA CLARA, CA 95054		 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 09/17/2007   M   1,250 A $ 21.5 6,554 D  
Common Stock 09/17/2007   M   10,146 A $ 18.26 16,700 D  
Common Stock 09/17/2007   M   10,109 A $ 9.96 26,809 D  
Common Stock 09/17/2007   M   2,000 A $ 8.5 28,809 D  
Common Stock 09/17/2007   S(1)   11,396 D $ 45 17,413 D  
Common Stock 09/17/2007   S(1)   10,409 D $ 46 7,004 D  
Common Stock 09/17/2007   S(1)   700 D $ 46.01 6,304 D  
Common Stock 09/17/2007   S(1)   1,000 D $ 46.02 5,304 D  

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) $ 21.5 09/17/2007   M     1,250   (2) 07/26/2015 Common Stock 1,250 $ 0 28,750 D  
Employee Stock Option (Right to Buy) $ 18.26 09/17/2007   M     10,146   (3) 07/20/2014 Common Stock 10,146 $ 0 12,605 D  
Employee Stock Option (Right to Buy) $ 9.96 09/17/2007   M     10,109   (4) 08/07/2013 Common Stock 10,109 $ 0 0 D  
Employee Stock Option (Right to Buy) $ 8.5 09/17/2007   M     2,000   (5) 11/08/2011 Common Stock 2,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KNITTEL RUSSELL J
3120 SCOTT BLVD., STE. 130
SANTA CLARA, CA 95054		       Sr VP, CFO, CAO and Secretary  

Signatures

 Russell J. Knittel   09/17/2007
**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 shares were sold pursuant to a 10b5-1 Sales Plan dated September 4, 2007.
(2) 25% of the total number of shares subject to the option vested and became exercisable on the twelve month anniversary of the July 26, 2005 vesting commencement date, and 1/48th of the total number of shares subject to the option vested or shall vest and became or shall become exercisable on the 26th day of each month thereafter.
(3) 25% of the total number of shares subject to the option vested and became exercisable on the twelve month anniversary of the July 20, 2004 vesting commencement date, and 1/48th of the total number of shares subject to the option vested or shall vest and became or shall become exercisable on the 20th day of each month thereafter.
(4) 25% of the total number of shares subject to the option vested and became exercisable on the twelve month anniversary of the August 7, 2003 vesting commencement date, and 1/48th of the total number of shares subject to the option vested and became exercisable on the 7th day of each month thereafter.
(5) 25% of the total number of shares subject to the option vested and became exercisable on November 9, 2002, and 312 shares vested and became exercisable each month thereafter.

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