Sec Form 4 Filing - McAdam Timothy P @ Rapid7, Inc. - 2019-05-23

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 McAdam Timothy P 2. Issuer Name and Ticker or Trading Symbol Rapid7, Inc. [ RPD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O TECHNOLOGY CROSSOVER VENTURES, 250 MIDDLEFIELD ROAD 3. Date of Earliest Transaction (MM/DD/YY) 05/23/2019 (Street) MENLO PARK, CA94025 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 05/23/2019 S 10,000 ( 1 ) D $ 52.51 ( 1 ) 8,385 D Common Stock 5,299 D ( 2 )

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 McAdam Timothy P C/O TECHNOLOGY CROSSOVER VENTURES 250 MIDDLEFIELD ROAD MENLO PARK, CA94025 X Signatures Frederic D. Fenton, Authorized Signatory for Timothy P. McAdam 05/28/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares contributed by the reporting person to an exchange fund in return for shares of the exchange fund. The exchange fund closed on May 23, 2019 and the common stock was contributed on that date. The common stock was valued at $52.51 per share, the market closing price for the day prior to the closing date, for purposes of determining the number of shares of the exchange fund issued to the reporting person. ( 2 )Represents restricted stock units ("RSUs") held of record by Timothy P. McAdam, for the benefit of TCV VII Management, L.L.C. ("TCV VII Management"). Each RSU represents a contingent right to receive one share of common stock the issuer. The RSUs vest in full on the earlier of (i) the date of the issuer's next annual meeting of stockholders held after the date of the grant or (ii) the first anniversary of the date of grant, in each case subject to Mr. McAdam's continued service with the issuer through the applicable vesting date. Mr. McAdam is a member of TCV VII Management and disclaims beneficial ownership of such RSUs and the underlying shares of the issuer's common stock except to the extent of his respective pecuniary interest therein.

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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