Sec Form 4 Filing - Forum Investors III LLC @ Forum Merger III Corp - 2020-10-02

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 Forum Investors III LLC 2. Issuer Name and Ticker or Trading Symbol Forum Merger III Corp [ FIII] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) X __ Other (specify below) *Director by Deputization (Last) (First) (Middle) C/O FORUM MERGER III CORPORATION, 1615 SOUTH CONGRESS AVENUE, SUITE 103 3. Date of Earliest Transaction (MM/DD/YY) 10/02/2020 (Street) DELRAY BEACH, FL33445 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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

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 Class B Common Stock ( 1 ) 10/02/2020 D( 1 ) 937,500 ( 2 ) ( 2 ) Class A Common Stock 937,500 $ 0 6,250,000 D ( 3 )

Reporting Owners Reporting Owner Name / Address Relationshi ps Director 10% Owner Officer Other Forum Investors III LLC C/O FORUM MERGER III CORPORATION 1615 SOUTH CONGRESS AVENUE, SUITE 103 DELRAY BEACH, FL33445 X X *Director by Deputization Forum Capital Management III LLC C/O FORUM MERGER III CORPORATION 1615 SOUTH CONGRESS AVENUE, SUITE 103 DELRAY BEACH, FL33445 X X Kiev Marshall C/O FORUM MERGER III CORPORATION 1615 SOUTH CONGRESS AVENUE, SUITE 103 DELRAY BEACH, FL33445 X X Co-CEO and President Boris David C/O FORUM MERGER III CORPORATION 1615 SOUTH CONGRESS AVENUE, SUITE 103 DELRAY BEACH, FL33445 X X Co-CEO and CFO Signatures /s/ Daniel Nussen, Attorney-in-Fact for Forum Investors III LLC 10/21/2020 Signature of Reporting Person Date /s/ Daniel Nussen, Attorney-in-Fact for Forum Capital Management III LLC 10/21/2020 Signature of Reporting Person Date /s/ Daniel Nussen, Attorney-in-Fact for Marshall Kiev 10/21/2020 Signature of Reporting Person Date /s/ Daniel Nussen, Attorney-in-Fact for David Boris 10/21/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On October 21, 2020, Forum Investors III LLC (the "Sponsor") forfeited at no cost 937,500 shares of Class B common stock of the Issuer, which was exempted pursuant to Rule 16b-3(e) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), in connection with the election by the underwriters of the Issuer's initial public offering of units to not exercise an option granted to them to cover over-allotments. ( 2 )The shares of Class B common stock are convertible for shares of the Issuer's Class A common stock as described under the heading "Description of Securities" in the Issuer's registration statement on Form S-1 (File No. 333-240171) (the "Registration Statement") and have no expiration date ( 3 )The Sponsor is the record holder of the shares reported herein. Marshall Kiev and David Boris are the managing members of Forum Capital Management III LLC, which is the managing member of the Sponsor. As such, David Boris and Marshall Kiev may be deemed to have beneficial ownership of the securities held directly by the Sponsor. Each such entity or person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest they may have therein, directly or indirectly.

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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