Sec Form 4 Filing - Kaplan Allan M @ Limelight Networks, Inc. - 2007-12-12

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 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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1. Name and Address of Reporting Person Kaplan Allan M 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 _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O LIMELIGHT NETWORKS, INC., 2220 W. 14TH STREET 3. Date of Earliest Transaction (MM/DD/YY) 12/12/2007 (Street) TEMPE, AZ85821 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/12/2007 S 100 D $ 8.34 902,140 D Common Stock 12/12/2007 S 100 D $ 8.32 902,040 D Common Stock 12/12/2007 S 300 D $ 8.31 901,740 D Common Stock 12/12/2007 S 800 D $ 8.29 900,940 D Common Stock 12/12/2007 S 5,845 D $ 8.25 895,095 D Common Stock 12/12/2007 S 355 D $ 8.26 894,740 D Common Stock 12/12/2007 S 300 D $ 8.27 894,440 D Common Stock 12/12/2007 S 100 D $ 8.34 894,340 D Common Stock 12/12/2007 S 500 D $ 8.35 893,840 D Common Stock 12/12/2007 S 600 D $ 8.26 893,240 D Common Stock 12/12/2007 S 200 D $ 8.27 893,040 D Common Stock 12/12/2007 S 700 D $ 8.28 892,340 D Common Stock 12/12/2007 S 1,196 D $ 8.32 891,144 D Common Stock 12/12/2007 S 600 D $ 8.26 890,544 D Common Stock 12/12/2007 S 600 D $ 8.27 889,944 D Common Stock 12/12/2007 S 100 D $ 8.25 889,844 D Common Stock 2,415,947 I ( 1 ) By Allan Kaplan Grantor Retaimed Annuity Trust Dated October 17, 2006 Common Stock 207,893 I ( 2 ) By Cocoon Capital LLC

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Kaplan Allan M C/O LIMELIGHT NETWORKS, INC. 2220 W. 14TH STREET TEMPE, AZ85821 X Signatures /s/ Matthew Hale, Attorney-in-Fact 12/14/2007 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Mr. Kaplan is a trustee of the Allan Kaplan Grantor Retained Annuity Trust Dated October 17, 2007 and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. ( 2 )Mr. Kaplan is a managing director of Cocoon Capital LLC and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

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).

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