Sec Form 4 Filing - LENTO ROBERT A @ Limelight Networks, Inc. - 2018-11-21

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 LENTO ROBERT A 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) CEO (Last) (First) (Middle) C/O LIMELIGHT NETWORKS, INC., 222 SOUTH MILL AVENUE, 8TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 11/21/2018 (Street) TEMPE, AZ85281 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 11/21/2018 A( 1 ) 300,346 A $ 0 ( 2 ) 1,848,964 ( 3 ) D Common Stock 4,693 I ( 4 ) By: Daughter Common Stock 18,468 I ( 4 ) By: Son

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 Non-qualified stock option (Right to Buy) $ 3.42 11/21/2018 A 672,619 12/01/2019( 5 ) 11/20/2028 Common Stock 672,619 $ 0 ( 2 ) 672,619 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other LENTO ROBERT A C/O LIMELIGHT NETWORKS, INC. 222 SOUTH MILL AVENUE, 8TH FLOOR TEMPE, AZ85281 X CEO Signatures Robert A. Lento by: James R. Todd, Attorney-In-Fact 11/26/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Reporting Person received an aggregate of 300,346 restricted stock units. Subject to the provisions of the Amended and Restated 2007 Equity Incentive Plan and Reporting Person's employment and restricted stock unit agreements with the Company, one-third (1/3rd) of the RSUs will vest on December 1, 2019, and one-twelfth (1/12th) of the RSUs will vest on the first day of each March, June, September, and December thereafter for eight (8) consecutive quarters, provided the recipient continues to be a Service Provider through each such vesting date. ( 2 )$0.00 is used for technical reasons as there is no price for this security until it vests in the case of RSUs, or until it is exercised in the case of stock options. ( 3 )This includes 827,224 unvested restricted stock units. ( 4 )Shares held directly by Reporting Person's adult children. The Reporting Person disclaims beneficial ownership of these securities. ( 5 )Reporting Person received an aggregate of 672,619 stock options. Subject to the provisions of the Amended and Restated 2007 Equity Incentive Plan and Reporting Person's employment and stock option agreements with the Company, one-third (1/3rd) of the shares subject to the stock option will vest on December 1, 2019, and one-thirty-sixth (1/36th) of the stock options will vest on the 1st day of January, 2020 and on the 1st day of each month thereafter until all of the stock options have vested (three years), provided the recipient continues to be a Service Provider through each such vesting date.

Remarks: Executed pursuant to the Limited Power of Attorney for Section 16 reporting obligations dated November 26, 2012.

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).

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