Sec Form 4 Filing - Gibber David B @ SINCLAIR BROADCAST GROUP INC - 2021-02-24

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 Gibber David B 2. Issuer Name and Ticker or Trading Symbol SINCLAIR BROADCAST GROUP INC [ SBGI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP & General Counsel (Last) (First) (Middle) 10706 BEAVER DAM ROAD 3. Date of Earliest Transaction (MM/DD/YY) 02/24/2021 (Street) HUNT VALLEY, MD21030 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 Class A Common Stock 02/24/2021( 1 ) F( 2 ) 3,314 ( 3 ) D $ 35.295 25,900 ( 4 ) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Gibber David B 10706 BEAVER DAM ROAD HUNT VALLEY, MD21030 SVP & General Counsel Signatures Clinton R. Black, V, Esq., on behalf of David B. Gibber, by Power of Attorney 02/26/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The first vesting date of restricted shares granted to the Reporting Person on February 24, 2020. ( 2 )Designated withholding of shares to satisfy the Reporting Person's tax liability. ( 3 )The total number of shares released to the Reporting Person was 6826 shares of Class A Common Stock issued as Restricted Stock of which 3314 shares were withheld by the issuer to satisfy the Reporting Person's tax liability. ( 4 )Common Stock issued as Restricted Stock. Reporting Person also owns 461.483310 shares of Class A Common Stock held in a 401(k) unitized stock fund, and 2450.335 shares of Class A Common Stock held in an Employee Stock Purchase Plan.

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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