Silicon Laboratories Inc.
SILICON LABORATORIES INC (Form: 4, Received: 08/19/2013 18:56:58)
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
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response...
0.5
                      
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

SOOCH NAVDEEP S
2. Issuer Name and Ticker or Trading Symbol

SILICON LABORATORIES INC [ SLAB ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

400 W CESAR CHAVEZ
3. Date of Earliest Transaction (MM/DD/YYYY)

8/15/2013
(Street)

AUSTIN, TX 78701
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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, $0.0001 par value   8/15/2013     M    15500   A $38.5   866340   D    
Common Stock, $0.0001 par value   8/15/2013     S    15500   (1) D $39.3929   (2) 850840   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 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
Non-Qualified Stock Option (right to buy)   $38.5   8/15/2013     M         10000    8/18/2004   (3) 8/18/2013   Common Stock, $0.0001 par value   10000     (5) 0   D    
Non-Qualified Stock Option (right to buy)   $38.5   8/15/2013     M         5500    8/18/2003   (4) 8/18/2013   Common Stock, $0.0001 par value   5500     (5) 0   D    

Explanation of Responses:
( 1)  Shares sold pursurant to Reporting Person's 10b5-1 Trading Plan.
( 2)  Price represents the weighted average selling price. Prices range between $39.20 and $39.90.
( 3)  Option vests and becomes exercisable with respect to (i) twenty percent (20%) of the option shares upon the date exercisable and (ii) the balance of the options shares in a series of forty-eight (48) successive monthly installments over the forty-eight (48) month period measured from the date exercisable.
( 4)  Option becomes exercisable as it vests in a series of sixty (60) successive equal monthly installments measured from the date exercisable.
( 5)  Not applicable per instruction 4(c)(iii).

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
SOOCH NAVDEEP S
400 W CESAR CHAVEZ
AUSTIN, TX 78701
X



Signatures
Saie-Yau Hui for Navdeep S. Sooch 8/19/2013
** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.