Edgar Filing: Insight Venture Partners Coinvestment Fund II, L.P.

Ownership Submission

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Â Insight Holdings Group, LLC

2. Date of Event Requiring Statement (Month/Day/Year)
04/01/2018

3. Issuer Name and Ticker or Trading Symbol
Mimecast Ltd [MIME]

(Last)

(First)

(Middle)

C/O INSIGHT VENTURE PARTNERS,Â 1114 AVENUE OF THE AMERICAS, 36TH FLOOR

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	__X__ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

NEW YORK,Â NYÂ 10036

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 Beneficially Owned

1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares	3,616,953	I	See footnote ⁽¹⁾
Ordinary Shares	1,592,260	I	See footnote ⁽²⁾
Ordinary Shares	228,783	I	See footnote ⁽³⁾
Ordinary Shares	83,717	I	See footnote ⁽⁴⁾
Ordinary Shares	3,986,039	I	See footnote ⁽⁵⁾

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Insight Holdings Group, LLC C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Partners VII, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Partners (Cayman) VII, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Partners (Delaware) VII, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Partners VII (Co-Investors), L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Associates VII, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Associates VII, Ltd. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Partners Coinvestment Fund II, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â
Insight Venture Associates Coinvestment II, L.P. C/O INSIGHT VENTURE PARTNERS 1114 AVENUE OF THE AMERICAS, 36TH FLOOR NEW YORK,Â NYÂ 10036	Â	Â X	Â	Â

Signatures

Insight Holdings Group, LLC, By: /s/ Blair Flicker, Attorney-in-Fact		04/02/2018
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Held directly by Insight Venture Partners VII, L.P.
(2)	Held directly by Insight Venture Partners (Cayman) VII, L.P.
(3)	Held directly by Insight Venture Partners (Delaware) VII, L.P.
(4)	Held directly by Insight Venture Partners VII (Co-Investors), L.P.
(5)	Held directly by Insight Venture Partners Coinvestment Fund II, L.P.
Â Remarks: ExhibitÂ List ExhibitÂ 99.1Â -Â JointÂ Filers'Â Signatures ExhibitÂ 99.2Â -Â JointÂ FilerÂ Information

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