Sec Form 4 Filing - Bay Management Co XI LLC @ MULESOFT, INC - 2017-09-18

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Bay Management Co XI LLC 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) 2180 SAND HILL ROAD, SUITE 345 3. Date of Earliest Transaction (MM/DD/YY) 09/18/2017 (Street) MENLO PARK, CA94025 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 09/18/2017 J( 1 ) 1,990,000 D $ 0 3,036,747 I See footnote ( 2 ) Class A Common Stock 09/18/2017 J( 3 ) 10,000 D $ 0 21,660 I See footnote ( 4 ) Class A Common Stock 09/18/2017 J( 1 )( 3 ) 62,359 A $ 0 127,111 D ( 5 )

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 Bay Management Co XI LLC 2180 SAND HILL ROAD, SUITE 345 MENLO PARK, CA94025 X Bay Partners XI L P 2180 SAND HILL ROAD, SUITE 345 MENLO PARK, CA94025 X BAY PARTNERS XI PARALLEL FUND L P 2180 SAND HILL ROAD, SUITE 345 MENLO PARK, CA94025 X PHILLIPS STUART G 2180 SAND HILL ROAD, SUITE 345 MENLO PARK, CA94025 X Signatures Bay Management Company XI, LLC /s/ Stuart G. Phillips, Managing Member 09/19/2017 Signature of Reporting Person Date Bay Partners XI, L.P., by Bay Management Company XI, LLC, its general partner /s/ Stuart G. Phillips, Managing Member 09/19/2017 Signature of Reporting Person Date Bay Partners XI Parallel Fund, L.P., by Bay Management Company XI, LLC, its general partner /s/ Stuart G. Phillips, Managing Member 09/19/2017 Signature of Reporting Person Date /s/ Stuart G. Phillips 09/19/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a pro-rata, in-kind distribution by Bay Partners XI, L.P. ("BP XI") without additional consideration, to its respective partners, members and assigns. ( 2 )Shares are held by BP XI. Bay Management Company XI, LLC ("BMC XI"), the general partner of BP XI, has sole voting and dispositive power with respect to the shares held by BP XI. Stuart G. Phillips, the managing member of BMC XI, has sole voting and dispositive power with respect to the shares held by BP XI. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pecuniary interest in such securities). ( 3 )Represents a pro-rata, in-kind distribution by Bay Partners XI Parallel Fund, L.P. ("Parallel XI") without additional consideration, to its respective partners, members and assigns. ( 4 )Shares are held by Parallel XI. BMC XI, the general partner of Parallel XI, has sole voting and dispositive power with respect to the shares held by Parallel XI. Stuart G. Phillips, the managing member of BMC XI, has sole voting and dispositive power with respect to the shares held by Parallel XI. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pecuniary interest in such securities). ( 5 )Shares are owned directly by Stuart G. Phillips.

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.