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*
Raciborski Nathan F	

(Last)	(First)	(Middle)	
C/O LIMELIGHT NETWORKS, INC.	
2220 W. 14TH STREET	

(Street) 
TEMPE	AZ	85281	

(City)	(State)	(Zip)	
	2. Issuer Name and Ticker or Trading Symbol 
Limelight Networks, Inc. [ LLNW ] 	5. Relationship of Reporting Person(s) to Issuer 
(Check all applicable) 
X	Director		10% Owner	
X	Officer (give title below)		Other (specify below)	
Co-Founder and CTO, Director	
		
	3. Date of Earliest Transaction (Month/Day/Year)
01/10/2011 		
	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) 	
			Code	V	Amount	(A) or (D)	Price				
Common Stock	01/10/2011		S(1) 		50,000	D	$6.1775(1) 	814,520(2) 	D		
Common Stock	01/10/2011		S(3) 		1,250	D	$6.25(3) 	846,797	I	See footnote(4) 	
Common Stock	01/10/2011		S(5) 		5,000	D	$6.128(5) 	2,490,000	I	See footnote(6) 	
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					
Explanation of Responses:	
1. Shares sold pursuant to 10b5-1 plan adopted on September 12, 2010. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.03 to $6.32, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.	
2. This includes 107,500 unvested restricted stock units.	
3. Shares sold pursuant to 10b5-1 plan adopted on December 6, 2010 for the Raciborski Family Children's Irrevocable Trust dated October 16, 2009.	
4. Shares held by the Raciborski Family Children's Irrevocable Trust dated October 16, 2009 for which the Reporting Person serves as a Trustee.	
5. Shares sold pursuant to 10b5-1 plan adopted on December 6, 2010 for the Nathan Raciborski Grantor Retained Annuity Trust dated December 15, 2009. These shares were sold in multiple transactions at prices ranging from $6.10 to $6.20, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.	
6. Shares held directly by Nathan Raciborski Grantor Retained Annuity Trust dated December 15, 2009 for which the Reporting Person serves as a Trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.	
Remarks:	
Executed pursuant to the Limited Power of Attorney for Section 16 reporting obligations dated June 3, 2009.	
	Nathan F. Raciborski by: /s/ James R. Todd, Attorney-in-Fact	01/11/2011	
	** 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 Number.