Sec Form 4 Filing - HUMMER WINBLAD VENTURE PARTNERS V LP @ MULESOFT, INC - 2017-11-01

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 HUMMER WINBLAD VENTURE PARTNERS V LP 2. Issuer Name and Ticker or Trading Symbol MULESOFT, INC [ MULE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) PIER 33 SOUTH, THE EMBARCADERO, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 11/01/2017 (Street) SAN FRANCISCO, CA94111 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 Class A Common Stock 11/01/2017 S( 1 ) 32,936 D $ 23.44 32,936 D ( 2 ) Class A Common Stock 11/01/2017 J( 3 ) 876,590 D $ 0 15,787,389 D ( 4 ) ( 5 ) Class A Common Stock 11/01/2017 J( 6 ) 65,872 A $ 0 98,808 D ( 7 ) Class A Common Stock 11/02/2017 S( 8 ) 32,936 D $ 23.59 65,872 D ( 9 )

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 HUMMER WINBLAD VENTURE PARTNERS V LP PIER 33 SOUTH THE EMBARCADERO, SUITE 300 SAN FRANCISCO, CA94111 X Hummer Winblad Equity Partners V, LLC PIER 33 SOUTH THE EMBARCADERO, SUITE 300 SAN FRANCISCO, CA94111 X KERTZMAN MITCHELL PIER 33 SOUTH THE EMBARCADERO, SUITE 300 SAN FRANCISCO, CA94111 X Hummer John PIER 33 SOUTH THE EMBARCADERO, SUITE 300 SAN FRANCISCO, CA94111 X Signatures HUMMER WINBLAD VENTURE PARTNERS V, L.P. By: Hummer Winblad Equity Partners V, L.L.C. Its: General Partner By: /s/ Ingrid Chiavacci, attorney-in-fact 11/03/2017 Signature of Reporting Person Date HUMMER WINBLAD EQUITY PARTNERS V, L.L.C. By: /s/ Ingrid Chiavacci, attorney-in-fact 11/03/2017 Signature of Reporting Person Date Mitchell Kertzman By: /s/ Ingrid Chiavacci, attorney-in-fact 11/03/2017 Signature of Reporting Person Date John Hummer By: /s/ Ingrid Chiavacci, attorney-in-fact 11/03/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a sale of 32, 936 shares held by Mitchell Kertzman, a managing member of Hummer Winblad Equity Partners V, L.L.C ("HW Equity V"). ( 2 )Consists of 32,936 shares held by John Hummer, a managing member of HW Equity V. ( 3 )Represents a pro-rata, in-kind distribution by Hummer Winblad Venture Partners V, L.P. ("HWVP V") without additional consideration, to its partners. HWVP V distributed an aggregate of 650,868 shares to its limited partners on a pro rata basis and 225,722 shares to its general partner, HW Equity V. HW Equity V subsequently distributed 225,722 shares on a pro rata basis for no additional consideration to its members and assignees. ( 4 )Consists of 15,778,619 shares held of record by HWVP V for itself and 8,770 shares held of record by HWVP V as nominee for Hummer Winblad Venture Partners V-A, L.P. ( 5 )HW Equity V is the general partner of HWVP V. Mr. Hummer, Mr. Kertzman and Ann Winblad are the managing members of HW Equity V and share voting and dispositive power with respect to the shares held of record by HWVP V. HW Equity V, Mr. Hummer, Mr. Kertzman and Ms. Winblad disclaim beneficial ownership of such shares except the extent of their pecuniary interests therein. ( 6 )Represents a change in the form of ownership as a result of a pro-rata, in-kind distribution by HWVP V to HW Equity V and the subsequent pro-rata, in-kind distribution by HW Equity V to its members and assignees, including Mr. Hummer and Mr. Kertzman. ( 7 )Consists of 65,872 shares held directly by Mr. Hummer and 32,936 shares held directly by Mr. Kertzman ( 8 )Represents a sale of 32, 936 shares held by Mr. Kertzman. ( 9 )Consists of 65,872 shares held by Mr. Hummer.

Remarks: This Form 4 is one of two Form 4s filed on the date hereof in respect of these shares. The Reporting Person on the other Form 4 is Ann Winblad.

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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