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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Hatfield David   2. Issuer Name and Ticker or Trading Symbol Limelight Networks, Inc. [LLNW] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior VP, Prod, Market, Sales (Last) (First) (Middle) 2220 W. 14TH STREET 3. Date of Earliest Transaction (Month/Day/Year) 08/10/2010 (Street) TEMPE, AZ 85281 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 08/10/2010   A   25,624 D $ 0 (1) 296,402 (2) D   Common Stock 08/10/2010   S(3)   13,005 D $ 3.92 (3) 283,397 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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.		SEC 1474 (9-02)

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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Hatfield David 2220 W. 14TH STREET TEMPE, AZ 85281			Senior VP, Prod, Market, Sales

Signatures

David M. Hatfield by: /s/ James R. Todd, Attorney-in-Fact		08/12/2010
**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)	On June 1, 2009, Reporting Person was granted 85,000 performance-based restricted stock units, each representing a contingent right to receive one share of Limelight Networks common stock at no cost. The actual award could have been as low as 0 shares or as high as 85,000 shares based upon the achievement of certain revenue and adjusted EBIT performance metrics during the performance period. Following the conclusion of the performance period, it was determined that the performance was achieved at a level that entitled Reporting Person to be eligible to receive 90.4% of the award, or 76,874 shares. On August 10, 2010, the first 1/3 of the award vested and converted into 25,624 shares.
(2)	The amount in this column previously reflected the entire June 1, 2010 award of 85,000 performance-based restricted stock units. It was determined that the performance was achieved at a level that entitled Reporting Person to be eligible to receive 90.4% of the award, or 76,874 shares. The amount currently in this column has been updated to reflect that 25,624 restricted stock units vested and were delivered to Reporting Person on August 10, 2010 and that 51,250 restricted stock units remain eligible to vest subject to service requirement.
(3)	The sale reported in this row represents restricted stock units that were withheld by the Company solely for the purpose of satisfying tax obligations arising upon the automatic vesting of 25,624 restricted stock units.
Remarks: Executed pursuant to the Limited Power of Attorney for Section 16 Reporting Obligations dated June 22, 2009.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.