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 OF SECURITIES 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 * Kinzer John   2. Issuer Name and Ticker or Trading Symbol HUBSPOT INC [HUBS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O HUBSPOT, INC., 25 FIRST STREET, 2ND FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 05/15/2018 (Street) CAMBRIDGE, MA 02141 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 05/15/2018   M(1)   1,424 A $ 40.59 69,090 D   Common Stock 05/15/2018   M(1)   3,374 A $ 52.8 72,464 D   Common Stock 05/15/2018   S(1)   4,798 D $ 109.1 67,666 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Employee Stock Option (right to buy)

$ 40.59

05/15/2018

M(1)

1,424

(2)

01/29/2026

Common Stock

1,424

$ 0

9,493

D

Employee Stock Option (right to buy)

$ 52.8

05/15/2018

M(1)

3,374

(3)

02/01/2027

Common Stock

3,374

$ 0

14,633

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Kinzer John C/O HUBSPOT, INC. 25 FIRST STREET, 2ND FLOOR CAMBRIDGE, MA 02141			Chief Financial Officer

Signatures

/s/ John P. Kelleher, attorney-in-fact		05/16/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	This transaction was effected pursuant to a written trading plan adopted by the Reporting Person in accordance with Rule 10b5-1.
(2)	The original stock option grant of 22,781 shares underlying the option vests over four (4) years beginning on January 1, 2017 at a rate of 25% after 12 months and in thirty-six (36) equal monthly installments thereafter.
(3)	The original stock option grant of 21,949 shares underlying the option vests over four (4) years beginning on January 1, 2017 at a rate of 25% after 12 months and in thirty-six (36) equal monthly installments thereafter.

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