Sec Form 4 Filing - Lyons Bob @ Limelight Networks, Inc. - 2021-02-16

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 Lyons Bob 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., 1465 NORTH SCOTTSDALE ROAD, SUITE 400 3. Date of Earliest Transaction (MM/DD/YY) 02/16/2021 (Street) SCOTTSDALE, AZ85257 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 02/16/2021 A( 1 ) 361,147 A $ 0 ( 2 ) 361,147 ( 3 ) D

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) $ 3.88 02/16/2021 A 541,720 02/16/2022( 4 ) 02/16/2031 Common Stock 541,720 $ 0 541,720 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lyons Bob C/O LIMELIGHT NETWORKS, INC. 1465 NORTH SCOTTSDALE ROAD, SUITE 400 SCOTTSDALE, AZ85257 X CEO Signatures Bob Lyons by: James R. Todd, Attorney-In-Fact 02/18/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reporting Person received an aggregate of 361,147 RSUs. 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 (1/3) of the RSUs will vest on March 1, 2022, and one-twelfth (1/12th) of the RSUs will vest on the first day of each June, September, December, and March thereafter for eight (8) consecutive quarters, provided Executive 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 361,147 unvested restricted stock units. ( 4 )Reporting Person received an aggregate of 541,720 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 (1/3) of the Options will vest on February 16, 2022, and the remaining two-thirds (2/3) will vest on the 16th day of March 2022 and on the same day of each month thereafter until all of the stock options have vested, twenty-four (24) consecutive months, provided Executive continues to be a Service Provider through each suchvesting date.

Remarks: Executed pursuant to the Limited Power of Attorney for Section 16 reporting obligations dated January 25, 2021.

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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