MIME / Mimecast Ltd - Документы SEC, Годовой отчет, Доверенное заявление

ООО "Мимкаст"
US ˙ NASDAQ
ЭТОТ СИМВОЛ БОЛЬШЕ НЕ АКТИВЕН

Основная статистика
LEI 254900ELSYFSTT9X2740
CIK 1644675
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Mimecast Ltd
SEC Filings (Chronological Order)
На этой странице представлен полный хронологический список документов SEC, за исключением документов о собственности, которые мы предоставляем в других местах.
May 31, 2022 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-37637 MIMECAST LIMITED (Exact name of registrant as specified in its cha

May 23, 2022 EX-99.1

Permira Completes Acquisition of Mimecast

Exhibit 99.1 Permira Completes Acquisition of Mimecast LEXINGTON, Mass. ? May 19, 2022 (GLOBE NEWSWIRE) ? Mimecast Limited (?Mimecast?) today announced the completion of its acquisition by funds advised by Permira for approximately $5.8 billion or $80.00 per share in cash. ?Today marks the beginning of an exciting new era at Mimecast during which we will continue to transform the way email securit

May 23, 2022 8-K

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission File Nu

May 23, 2022 EX-3.1

Special Resolution of the Members of the Company Adopting the New Memorandum and Articles of Association

Exhibit 3.1 MIMECAST LIMITED registered number 119119 (the ?Company?) Written resolution of the members of the Company We, the undersigned, being all of the members of the Company as at the date when the following resolution (the ?Resolution?) is deemed passed, HEREBY RESOLVE that, pursuant to Article 95 of the Companies (Jersey) Law 1991 (the Law), the following Resolution be and is hereby approv

May 23, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 20, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 20, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 20, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 20, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 20, 2022 S-8 POS

As filed with the Securities and Exchange Commission on May 19, 2022

As filed with the Securities and Exchange Commission on May 19, 2022 Registration No.

May 6, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission File Num

April 21, 2022 EX-99.1

Mimecast Announces Hearing Date with the Royal Court of Jersey to Review Pending Permira Transaction

Exhibit 99.1 Mimecast Announces Hearing Date with the Royal Court of Jersey to Review Pending Permira Transaction LEXINGTON, Mass., April 21, 2022 ? Mimecast Limited (NASDAQ: MIME) today announced that the Royal Court of Jersey has set May 18, 2022 at 10:00 am BST / 5:00 am EDT to hear Mimecast?s application to sanction the scheme of arrangement under Part 18A of the Companies (Jersey) Law 1991. M

April 21, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission File

April 1, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission File

March 21, 2022 8-K/A

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission Fil

March 14, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of Incorporation) (Commission File

March 14, 2022 EX-99.1

Mimecast Shareholders Approve Permira Transaction

Exhibit 99.1 Mimecast Shareholders Approve Permira Transaction LEXINGTON, Mass., March 11, 2022 ? Mimecast Limited (NASDAQ: MIME) announced today at the company?s special meeting that its shareholders voted to approve the company?s pending acquisition by funds advised by Permira. ?I thank our shareholders for their strong support of this transaction and of Mimecast throughout our company?s history

March 3, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 3, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of incorporation) (Commission File N

March 3, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

February 14, 2022 SC 13G/A

MIME / Mimecast Ltd / Bauer Peter - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 6)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2021 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this

February 9, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

February 9, 2022 DEFM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

February 4, 2022 SC 13G/A

MIME / Mimecast Ltd / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* MIMECAST LIMITED (Name of Issuer) Common Stock (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

February 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2022 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

February 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

February 3, 2022 EX-99.1

Mimecast Announces Third Quarter 2022 Financial Results

Exhibit 99.1 Mimecast Announces Third Quarter 2022 Financial Results Lexington, MA ? February 3, 2022? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced financial results for the third fiscal quarter ended December 31, 2021. Third Quarter 2022 Highlights ? Achieved total revenue of $151.6 million, up 17% year-over-year on a GAAP basis and up 16

January 21, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2022 MIMECAST LIMITED

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of incorporation) (Commission Fil

January 21, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 20, 2022 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Jersey 001-37637 Not applicable (State or other jurisdiction of incorporation) (Commission Fil

January 13, 2022 PREM14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

December 7, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 7, 2021 MIMECAST LIMITED (Exact name of registrant as spec

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 7, 2021 MIMECAST LIMITED (Exact name of registrant as specified in its charter) 001-37637 (Commission File Number) Jersey Not Applicable (State or other jurisdiction of incorporation) (IRS Employer Identifica

December 7, 2021 EX-99.1

Mimecast to Become a Private Company through Transaction with Permira Valued at Approximately $5.8 Billion

Exhibit 99.1 Mimecast to Become a Private Company through Transaction with Permira Valued at Approximately $5.8 Billion LEXINGTON, Mass. ? December 7, 2021 ? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced that it has entered into a definitive agreement whereby funds advised by Permira, a global private equity firm focused on transformational

December 7, 2021 EX-2.1

Transaction Agreement, dated December 7, 2021, by and between Mimecast Limited and Magnesium Bidco Limited

Exhibit 2.1 Execution Version TRANSACTION AGREEMENT by and between MAGNESIUM BIDCO LIMITED and MIMECAST LIMITED December 7, 2021 CONFIDENTIAL TABLE OF CONTENTS Page ARTICLE 1 THE TRANSACTION 2 Section 1.01 The Transaction 2 Section 1.02 Closing 2 Section 1.03 Effective Time 2 ARTICLE 2 TRANSFER OF COMPANY ORDINARY SHARES; EXCHANGE PROCEDURES 2 Section 2.01 Transfer of Company Ordinary Shares 2 Sec

December 7, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

December 7, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 7, 2021 MIMECAST LIMITED (Exact name of registrant as specified in its charter) 001-37637 (Commission File Number) Jersey Not Applicable (State or other jurisdiction of incorporation) (IRS Employer Identifica

November 2, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

November 2, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 2, 2021 EX-99.1

Mimecast Announces Second Quarter 2022 Financial Results

Exhibit 99.1 Mimecast Announces Second Quarter 2022 Financial Results Lexington, MA ? November 2, 2021? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced financial results for the second fiscal quarter ended September 30, 2021. Second Quarter 2022 Highlights ? Achieved total revenue of $147.2 million, up 20% year-over-year on a GAAP basis and u

October 7, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): October 6, 2021 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation) (Co

September 7, 2021 EX-99.1

MIMECAST APPOINTS JOE MERCURIO INTERIM CHIEF REVENUE OFFICER Dino DiMarino Departing for New Opportunity Search Process Underway to Identify Successor

Exhibit 99.1 MIMECAST APPOINTS JOE MERCURIO INTERIM CHIEF REVENUE OFFICER Dino DiMarino Departing for New Opportunity Search Process Underway to Identify Successor LEXINGTON, Mass., September 7, 2021 ? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced it has appointed Joe Mercurio Interim Chief Revenue Officer (CRO), effective October 5, 2021.

September 7, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 31, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or o

August 3, 2021 EX-99.1

Mimecast Announces First Quarter 2022 Financial Results

Exhibit 99.1 Mimecast Announces First Quarter 2022 Financial Results Lexington, MA ? August 3, 2021 (GLOBE NEWSWIRE) ? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced financial results for the first fiscal quarter ended June 30, 2021. First Quarter 2022 Highlights ? Achieved total revenue of $142.5 million, up 24% year-over-year on a GAAP bas

August 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

August 3, 2021 EX-10.39

Mimecast Limited 2015 Employee Share Purchase Plan - Additional Terms and Conditions

Exhibit 10.39 Mimecast Limited 2015 Employee Share Purchase Plan Additional Terms and Conditions 1.Terms. By electing to participate in the Mimecast Limited (the ?Company?) 2015 Employee Share Purchase Plan (the ?Plan?) and completing the online enrollment process required by the Company, Participant hereby agrees to these Additional Terms and Conditions, including any special terms for Participan

August 3, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

August 3, 2021 EX-10.40

Offer Letter between Mimecast North America, Inc, and Shahriar Rafimayeri, dated July 23, 2020

Exhibit 10.40 July 23, 2020 VIA EMAIL Shahriar Rafimayeri Dear Shahriar, Mimecast North America, Inc. (?Mimecast? or the ?Company?) is pleased to offer you the position of Chief Information Officer. Our offer is contingent on a successful background check being completed and your compensation details are subject to approval by Mimecast?s Board of Directors. Your home office will be our office loca

July 26, 2021 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

June 22, 2021 EX-99.1

Mimecast Names David Raissipour as Chief Technology & Product Officer Appointment will accelerate innovation and market leadership, driving new enterprise business

Exhibit 99.1 Mimecast Names David Raissipour as Chief Technology & Product Officer Appointment will accelerate innovation and market leadership, driving new enterprise business Lexington, MA ? June 22, 2021 ? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced the appointment of David Raissipour as Chief Technology & Product Officer (CTPO). Raiss

June 22, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 22, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or org

May 27, 2021 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO . Commission File Number 001-37637 MIMECAST LIMITED

May 27, 2021 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Name of Subsidiary Jurisdiction of Incorporation or Organization Mimecast UK Limited England & Wales Mimecast Services Limited England & Wales Mimecast North America, Inc. Delaware Mimecast South Africa Pty Ltd. South Africa Mimecast Australia Pty Ltd. Australia Mimecast Offshore Ltd. Jersey, Channel Islands Mimecast Germany GbmH Germany Mimecast Israel

May 27, 2021 EX-10.42

Mimecast Limited Executive Severance and Change in Control Plan

Exhibit 10.42 MIMECAST LIMITED Executive SEVERANCE AND CHANGE IN CONTROL pLAN Mimecast Limited (the ?Company?) considers it essential to the best interests of its shareholders to foster the continuous employment of key management personnel. The Compensation Committee (the ?Committee?) of the Board of Directors of the Company (the ?Board?) recognizes, however, that, as is the case with many publicl

May 27, 2021 S-8

As filed with the Securities and Exchange Commission on May 27, 2021

As filed with the Securities and Exchange Commission on May 27, 2021 Registration No.

May 11, 2021 EX-10.2

Mimecast Limited FY 2022 Executive Cash Incentive Bonus Plan.

Metrics & Weighting: 75% Net New ARR / 25% Non-GAAP Operating Income. Awards are interpolated between achievement percent (e.g., 102.5% NNARR achievement results in award of 105%). Each metric is capped at 150% of award quarterly; overall quarterly award payments are capped at 100% with any overachievement earned to be reconciled at year end. If the full year metric target is achieved, then any qu

May 11, 2021 EX-99.1

Mimecast Announces Fourth Quarter and Full Year 2021 Financial Results

Exhibit 99.1 Mimecast Announces Fourth Quarter and Full Year 2021 Financial Results Lexington, MA ? May 11, 2021 (GLOBE NEWSWIRE) Mimecast Limited (NASDAQ: MIME), a leading global provider of next generation cloud security and risk management services for email and corporate information, today announced financial results for the fourth fiscal quarter and fiscal year ended March 31, 2021. Fourth Qu

May 11, 2021 EX-99.1

Mimecast Names Bernd Leger as Chief Marketing Officer Search for Chief Technology and Product Officer Underway Moves Designed to Accelerate Innovation and Market Leadership

Exhibit 99.1 Mimecast Names Bernd Leger as Chief Marketing Officer Search for Chief Technology and Product Officer Underway Moves Designed to Accelerate Innovation and Market Leadership Lexington, MA ? May 11, 2021 ? Mimecast Limited (NASDAQ: MIME), a leading email security and cyber resilience company, today announced an executive appointment and chief technology and product officer search design

May 11, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or organ

May 11, 2021 EX-10.1

Transition Agreement dated May 10, 2021 between Mimecast North America, Inc. and Christina Van Houten.

Exhibit 10.1 THIS IS AN IMPORTANT LEGAL DOCUMENT. PLEASE CONFER WITH A LAWYER OR OTHER TRUSTED ADVISOR BEFORE SIGNING THIS DOCUMENT. Transition Agreement This Transition Agreement (the ?Transition Agreement?) is made as of this 10th day of May 2021 (the ?Effective Date?) by and between Mimecast North America, Inc., a corporation organized under the laws of Delaware (together with its affiliated co

May 11, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or orga

April 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* MIMECAST LIMITED (Name of Issuer) Common Stock (Title of Class of Securities) G14838109 (CUSIP Number) March 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

April 5, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

March 16, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

March 16, 2021 EX-99.2

INCIDENT REPORT

Exhibit 99.2 INCIDENT REPORT Executive Summary In January, we became aware of a security incident later determined to be conducted by the same sophisticated threat actor responsible for the SolarWinds supply chain attack. During our investigation, we learned that the threat actor used the SolarWinds supply-chain compromise to gain access to part of our production grid environment. Using this entry

March 16, 2021 EX-99.1

MIMECAST BLOG POST

EX-99.1 Exhibit 99.1 MIMECAST BLOG POST Report on Our Security Incident Investigation In January, Mimecast became aware of a security incident later determined to be conducted by the same sophisticated threat actor responsible for the SolarWinds supply chain attack. We immediately launched an internal investigation, supported by leading third-party forensics and cyber incident response experts at

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) (CUSI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) Whale Rock Capital Management LLC 2 International Place, 24th Floor Boston, MA 02110 (617) 502-9909 (Name, Address and Telephone N

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 5)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) (CUSIP Number) Dece

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 5)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2020 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to w

February 4, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2020 Date of Event Which Requires Filing of this Statement Check the appropriate box to designate the rule pursuant t

February 3, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

February 3, 2021 8-K

Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 28, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

February 3, 2021 EX-99.1

Mimecast Announces Third Quarter 2021 Financial Results

Exhibit 99.1 Mimecast Announces Third Quarter 2021 Financial Results Lexington, MA – February 3, 2021 (GLOBE NEWSWIRE) Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced financial results for the third fiscal quarter ended December 31, 2020. Overall Highlights • Total revenue of $129.6 million grew 18% year-over-year on a GAAP basis and 17% in constant curr

January 26, 2021 EX-99.1

PUBLIC STATEMENT

EX-99.1 Exhibit 99.1 PUBLIC STATEMENT Important Security Update At Mimecast, we prioritize the security of our customers, and our commitment to being transparent with them, above all else. These two principles have guided our rapid response to the recent security incident, as well as this update and the customer and partner guidance we are providing today via directed actions in the Administration

January 26, 2021 8-K

Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 26, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

January 12, 2021 8-K

Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 12, 2021 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

January 12, 2021 EX-99.1

PUBLIC STATEMENT

EX-99.1 2 d47544dex991.htm EX-99.1 Exhibit 99.1 PUBLIC STATEMENT Microsoft recently informed us that a Mimecast-issued certificate provided to certain customers to authenticate Mimecast Sync and Recover, Continuity Monitor and IEP products to Microsoft 365 Exchange Web Services has been compromised by a sophisticated threat actor. Approximately 10 percent of our customers use this connection. Of t

January 11, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Mimecast Ltd (Name of Issuer) Common Stock (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

December 29, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 23, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 2, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

November 2, 2020 EX-99.1

Mimecast Announces Second Quarter 2021 Financial Results Exceeded High End of Revenue Guidance by $0.9 Million Solid Execution and Capital Discipline Drove Improved Operating Leverage

Exhibit 99.1 Mimecast Announces Second Quarter 2021 Financial Results Exceeded High End of Revenue Guidance by $0.9 Million Solid Execution and Capital Discipline Drove Improved Operating Leverage Lexington, MA – November 2, 2020 (GLOBE NEWSWIRE) Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced financial results for the second fiscal quarter ended Septemb

November 2, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

October 8, 2020 EX-10.2

Form of Officer Indemnification Agreement

EX-10.2 Exhibit 10.2 OFFICER INDEMNIFICATION AGREEMENT THIS OFFICER INDEMNIFICATION AGREEMENT (this “Agreement”) is made effective as of the day of , , by and between MIMECAST LIMITED, a public limited company incorporated in Jersey, Channel Islands under number 119119 the registered office of which is 22 Grenville Street, St Helier, Jersey JE4 8PX (“Company”) and (the “Indemnitee”). WHEREAS, the

October 8, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): October 7, 2020 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation) (Co

October 8, 2020 EX-10.1

Form of Director Indemnification Agreement

EX-10.1 Exhibit 10.1 DIRECTOR INDEMNIFICATION AGREEMENT THIS DIRECTOR INDEMNIFICATION AGREEMENT (this “Agreement”) is made effective as of the day of , 2020, by and between MIMECAST LIMITED, a public limited company incorporated in Jersey, Channel Islands under number 119119 the registered office of which is 22 Grenville Street, St Helier, Jersey JE4 8PX (“Company”) and (the “Indemnitee”). WHEREAS

September 28, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

September 3, 2020 8-K

- 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 31, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or o

August 3, 2020 EX-99.1

5 MIMECAST LIMITED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces First Quarter 2021 Financial Results First Quarter Highlights • Total revenue of $115.2 million grew 16% year-over-year on a GAAP basis and 21% in constant currency • Added 600 net new customers. Total customers 38,600 globally • Revenue retention rate of 106% • GAAP gross profit percentage of 75%, Non-GAAP gross profit percentage of 77% • GAAP EPS of $0.05 per dilu

August 3, 2020 EX-10.45

Amendment No. 1 to Credit Agreement dated as of June 12, 2020, by and among Mimecast Limited, certain of Mimecast Limited’s subsidiaries party thereto, as guarantors, certain financial institutions party thereto from time to time, as Lenders, and JPMorgan Chase Bank, N.A., as administrative agent

EX-10.45 2 mime-ex1045284.htm EX-10.45 Exhibit 10.45 Execution Version AMENDMENT NO. 1 TO CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO CREDIT AGREEMENT (this “Amendment”) is made as of June 12, 2020, by and among MIMECAST LIMITED, a public company incorporated in Jersey with registration number 119119 and having its registered office at 22 Grenville Street, St Helier, Jersey JE4 8PX (the “Borrower”),

August 3, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

August 3, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

July 30, 2020 EX-99.1

Mimecast Acquires MessageControl Acquisition Bolsters Machine Learning and Graph Technology to Increase Efficacy in the Fight Against Advanced Phishing and Impersonation Attacks

Exhibit 99.1 Mimecast Acquires MessageControl Acquisition Bolsters Machine Learning and Graph Technology to Increase Efficacy in the Fight Against Advanced Phishing and Impersonation Attacks Lexington, MA – July 30, 2020 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired eTorch Inc. (d/b/a MessageControl), a messaging security provider wit

July 30, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or org

July 30, 2020 EX-99.1

Mimecast Acquires MessageControl Acquisition Bolsters Machine Learning and Graph Technology to Increase Efficacy in the Fight Against Advanced Phishing and Impersonation Attacks

EX-99.1 Exhibit 99.1 Mimecast Acquires MessageControl Acquisition Bolsters Machine Learning and Graph Technology to Increase Efficacy in the Fight Against Advanced Phishing and Impersonation Attacks Lexington, MA – July 30, 2020 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired eTorch Inc. (d/b/a MessageControl), a messaging security prov

July 30, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or org

July 24, 2020 DEF 14A

- DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

May 22, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO . Commission File Number 001-37637 MIMECAST LIMITED

May 22, 2020 EX-10.40

Form of Non-Qualified Share Option Agreement for Company Employees Outside the United States under the Mimecast Limited 2015 Share Option and Incentive Plan

Exhibit 10.40 NON-QUALIFIED SHARE OPTION AGREEMENT FOR COMPANY EMPLOYEES OUTSIDE THE UNITED STATES UNDER THE MIMECAST LIMITED 2015 SHARE OPTION AND INCENTIVE PLAN Name of Optionee: No. of Share Options: Option Exercise Price per Share: Grant Date: Expiration Date: Pursuant to the Mimecast Limited 2015 Share Option and Incentive Plan as amended through the date hereof (the “Plan”), Mimecast Limited

May 22, 2020 EX-10.41

Form of Restricted Share Unit Award Agreement for Company Employees Outside the United States under the Mimecast Limited 2015 Share Option and Incentive Plan

Exhibit 10.41 RESTRICTED SHARE UNIT AWARD AGREEMENT FOR COMPANY EMPLOYEES OUTSIDE THE UNITED STATES UNDER THE MIMECAST LIMITED 2015 SHARE OPTION AND INCENTIVE PLAN Name of Grantee: No. of Restricted Share Units: Grant Date: Pursuant to the Mimecast Limited 2015 Share Option and Incentive Plan as amended through the date hereof (the “Plan”) and this Restricted Share Unit Award Agreement, including

May 22, 2020 EX-10.45

Offer Letter between Mimecast Services Limited and Heather Bentley, dated October 13, 2019

Exhibit 10.45 mimecast Heather Bentley 12/10/2019 Dear Heather, Offer of Employment at Mimecast Services Limited (the "Company") Following your interviews with Mimecast, it is with pleasure that we offer you the position of a Senior Vice President, of Customer Operations (COPS), to be located in our London UK office. Your employment will be on the terms set out in our standard UK Employment Contra

May 22, 2020 EX-4.2

Description of Securities

Exhibit 4.2 DESCRIPTION OF SECURITIES The following descriptions are summaries of the material terms of the Memorandum of Association and Articles of Association (the “Articles of Association”) of Mimecast Limited, a corporation organized under the laws of Jersey, Channel Islands (Company No. 119119) (the “Company”). Reference is made to the more detailed provisions of the Articles of Association.

May 22, 2020 EX-10.42

Mimecast Limited Executive Incentive Plan – FY 2021

FY 2021 Executive Incentive Plan Mimecast Limited I Effective: April 1, 2020 Exhibit 10.

May 22, 2020 S-8

- S-8

As filed with the Securities and Exchange Commission on May 22, 2020 Registration No.

May 22, 2020 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Name of Subsidiary Jurisdiction of Incorporation or Organization Mimecast UK Limited England & Wales Mimecast Services Limited England & Wales Mimecast North America, Inc. Delaware Mimecast South Africa Pty Ltd. South Africa Mimecast Australia Pty Ltd. Australia Mimecast Offshore Ltd. Jersey, Channel Islands Mimecast Germany GbmH Germany Mimecast Israel

May 22, 2020 EX-10.44

Offer Letter between Mimecast Limited and Dino DiMarino, dated June 23, 2016

Exhibit 10.44 June 23, 2016 Dino DiMarino Dear Dino, Mimecast is pleased to offer you the position of Senior Vice President of North American Sales with a start date of August 15, 2016 contingent on successful background and reference check. You will work from the Watertown office and report to Ed Jennings, Chief Operating Officer. Our offer of employment is as follows: i. Your semi-monthly salary

May 22, 2020 EX-10.46

Employment Contract between Mimecast Services Limited and Heather Bentley dated 25 November 2019

EX-10.46 9 mime-ex1046795.htm EX-10.46 Exhibit 10.46 Dated: 2019 Mimecast Services Limited (1) and Heather Bentley (2) Employment Contract PARTIES (1) MIMECAST SERVICES LIMITED incorporated and registered in England and Wales with company number 04901524 whose registered office is at 1 Finsbury Avenue, London, EC2M 2PF (the "Company"); and (2) Heather Bentley of {the "Employee" or "you") AGREED TE

May 22, 2020 EX-10.8

Mimecast Limited 2015 Employee Share Purchase Plan

Exhibit 10.8 MIMECAST LIMITED 2015 EMPLOYEE SHARE PURCHASE PLAN The purpose of the Mimecast Limited 2015 Employee Stock Purchase Plan (“the Plan”) is to provide eligible employees of Mimecast Limited (the “Company”) and each Designated Subsidiary (as defined in Section 11) with opportunities to purchase ordinary shares of the Company (the “Ordinary Shares”). 1,100,000 Ordinary Shares have been app

May 11, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or orga

May 11, 2020 EX-99.1

5 MIMECAST LIMITED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces Fourth Quarter and Full Year 2020 Financial Results Fourth Quarter Highlights • Total revenue of $114.2 million grew 24% year-over-year on a GAAP basis and 26% in constant currency • Added 1,200 net new customers. Total customers 38,100 globally • Revenue retention rate of 107% • GAAP gross profit percentage of 74%, Non-GAAP gross profit percentage of 76% • GAAP EPS

April 28, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

April 14, 2020 POS AM

MIME / Mimecast Limited POS AM - - POS AM

POS AM As filed with the Securities and Exchange Commission on April 14, 2020 Registration No.

February 14, 2020 SC 13G/A

MIME / Mimecast Limited / Whale Rock Capital Management LLC - SC 13G/A Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) Whale Rock Capital Management LLC 2 International Place, 24th Floor Boston, MA 02110 (617) 502-9909 (Name, Address an

February 14, 2020 SC 13G/A

MIME / Mimecast Limited / Abdiel Qualified Master Fund LP - SCHEDULE 13G-A FOR MIMECAST LIMITED BY ABDIEL QUALIFIED MASTER FUND, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2019 Date of Event Which Requires Filing of this Statement Check the appropriate box to designate the rule pursuant t

February 12, 2020 SC 13G/A

MIME / Mimecast Limited / Insight Venture Partners VII, L.P. - SCHEDULE 13G (AMENDMENT NO. 3) Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 3)* MIMECAST LIMITED (Name of Issuer) ORDINARY SHARES, $0.012 NOMINAL VALUE (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2019 (Date of

February 10, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

February 10, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

February 10, 2020 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces Third Quarter 2020 Financial Results Third Quarter Highlights • Total revenue of $110.2 million grew 26% yoy on a GAAP basis and 27% in constant currency • Added 800 net new customers. Total customers 36,900 globally • Revenue retention rate of 109% • GAAP gross profit percentage of 74%, Non-GAAP gross profit percentage of 76% • GAAP EPS of $0.00 per diluted share,

February 3, 2020 SC 13G/A

MIME / Mimecast Limited / Bauer Peter - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 4)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2019 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to w

January 28, 2020 SC 13G

MIME / Mimecast Limited / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Mimecast Ltd (Name of Issuer) Common Stock (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

January 24, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 21, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

January 6, 2020 EX-99.1

Mimecast Acquires Segasec Acquisition Extends Protection Beyond the Perimeter to Defend Against Brand Exploits Used to Steal Money and Data.

EX-99.1 Exhibit 99.1 Mimecast Acquires Segasec Acquisition Extends Protection Beyond the Perimeter to Defend Against Brand Exploits Used to Steal Money and Data. Lexington, MA – January 6, 2020 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced the acquisition of Segasec, a provider of digital threat protection. With this innovative technology, Mimecast c

January 6, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 6, 2020 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or o

November 14, 2019 EX-99.1

Mimecast Announces Acquisition of DMARC Analyzer Acquisition Offers Powerful Brand Protection with Stronger Blocking of Spoofing Attacks

EX-99.1 Exhibit 99.1 Mimecast Announces Acquisition of DMARC Analyzer Acquisition Offers Powerful Brand Protection with Stronger Blocking of Spoofing Attacks Lexington, MA – November 14, 2019 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired DMARC Analyzer, a SaaS-based solution provider that offers user-friendly Domain-based Message Auth

November 14, 2019 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 14, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 7, 2019 10-Q

MIME / Mimecast Limited 10-Q - Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

November 7, 2019 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces Second Quarter 2020 Financial Results Second Quarter Highlights • Total revenue of $103.4 million grew 26% yoy on a GAAP basis and 29% in constant currency • Added 800 net new customers. Total customers 36,100 globally • Revenue retention rate of 110% • Gross profit percentage of 75%, Non-GAAP gross profit percentage of 76% • GAAP EPS of $(0.01) per diluted share, N

November 7, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 7, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 7, 2019 EX-99.1

Mimecast Hires New Talent to Help Drive Next Phase of Growth Heather Bentley to Join as Senior Vice President of Customer Success; Susan Vaillancourt Joins as New Vice President of Brand Strategy; and Alpna J. Doshi Named to Board of Directors effect

Exhibit 99.1 Mimecast Hires New Talent to Help Drive Next Phase of Growth Heather Bentley to Join as Senior Vice President of Customer Success; Susan Vaillancourt Joins as New Vice President of Brand Strategy; and Alpna J. Doshi Named to Board of Directors effective December 1, 2019 Lexington, MA - November 07, 2019 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, anno

October 3, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): October 3, 2019 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation) (Co

September 24, 2019 EX-10.1

Transition Agreement between Edward Jennings and Mimecast North America, Inc. dated September 20, 2019.

EX-10.1 2 d807812dex101.htm EX-10.1 Exhibit 10.1 September 20, 2019 Mr. Edward Jennings c/o Mimecast North America, Inc. 191 Spring Street Lexington, MA 02421 Re: Resignation and Transition Agreement Dear Ed: This letter follows our recent discussions regarding your desire to resign from employment with Mimecast North America, Inc. (the “Company”), which includes for this purpose your position as

September 24, 2019 EX-99.1

Mimecast Announces Departure of Ed Jennings and the Appointment of New Chief Revenue Officer, Dino DiMarino

EX-99.1 Exhibit 99.1 Mimecast Announces Departure of Ed Jennings and the Appointment of New Chief Revenue Officer, Dino DiMarino Lexington, MA – September 24, 2019 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced the departure of Chief Operating Officer, Ed Jennings who will transition his departure at the end of 2019 to pursue his career goal of leadin

September 24, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): September 20, 2019 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation)

August 5, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

August 5, 2019 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces First Quarter 2020 Financial Results First Quarter Highlights • Total revenue of $99.2 million grew 27% yoy on a GAAP basis and 32% in constant currency • Added 900 net new customers. Total customers 35,300 globally • Revenue retention rate of 111% • Gross profit percentage of 74%, Non-GAAP gross profit percentage of 76% • GAAP EPS of $(0.07) per diluted share, Non-

August 5, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

July 25, 2019 DEF 14A

MIME / Mimecast Limited DEF 14A - - DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 29, 2019 S-8

MIME / Mimecast Limited S-8 - - S-8

As filed with the Securities and Exchange Commission on May 29, 2019 Registration No.

May 29, 2019 EX-10.43

Lease of 5th Floor of 1 Finsbury Avenue, London EC2 dated 29 March 2019 between B.L.C.T. (PHC 15A) Limited, Mimecast Services Limited and Mimecast Limited

Exhibit 10.43 Execution copy 29 March 2019 B.L.C.T. (PHC 15A) LIMITED and MIMECAST SERVICES LIMITED and MIMECAST LIMITED 1 FINSBURY AVENUE, LONDON EC2 LEASE OF 5th FLOOR Herbert Smith Freehills LLP 11/464865575 1UKMATTERS:45919740.1 TABLE OF CONTENTS 1 INTERPRETATION 1 2 DEMISE HABENDUM AND REDDENDUM 9 3 TENANT'S COVENANTS 10 Rent 10 Outgoings 10 Water gas and electricity charges and equipment 11

May 29, 2019 EX-10.41

Lease of 3rd Floor of 1 Finsbury Avenue, London EC2 dated 29 March 2019 between B.L.C.T. (PHC 15A) Limited, Mimecast Services Limited and Mimecast Limited

Exhibit 10.41 Execution version 29 March 2019 B.L.C.T. (PHC 15A) LIMITED and MIMECAST SERVICES LIMITED and MIMECAST LIMITED 1 FINSBURY AVENUE, LONDON EC2 LEASE OF 3RD FLOOR Herbert Smith Freehills LLP 11/4400563715 1UKMATTERS:45919740.1 TABLE OF CONTENTS 1 INTERPRETATION 1 2 DEMISE HABENDUM AND REDDENDUM 9 3 TENANT'S COVENANTS 10 Rent 10 Outgoings 10 Water gas and electricity charges and equipment

May 29, 2019 10-K

Annual Report - 10-K

fa UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO . Commission File Number 001-37637 MIMECAST LIMI

May 29, 2019 EX-10.38

Offer Letter between Mimecast Limited and Christina Van Houten, dated March 7, 2018

Exhibit 10.38 Mimecast March 7, 2018 Christina Van Houten Dear Christina, Mimecast is pleased to offer you the position of Chief Strategy Officer. Our offer is contingent on a successful background check being completed and compensation details are subject to board approval. You'd work from the Lexington office, travel from time to time, including to our global offices. You would report to me as p

May 29, 2019 EX-21.1

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant Name of Subsidiary Jurisdiction of Incorporation or Organization Mimecast UK Limited England & Wales Mimecast Services Limited England & Wales Mimecast North America, Inc. Delaware Mimecast South Africa Pty Ltd. South Africa Mimecast Australia Pty Ltd. Australia Mimecast Offshore Ltd. Jersey, Channel Islands Mimecast USD Ltd. England & Wales Mimecast Dev

May 29, 2019 EX-10.39

Offer Letter between Mimecast Limited and Karen Anderson, dated October 2018

Exhibit 10.39 mimecast October X, 2018 Karen Anderson Dear Karen, Mimecast is pleased to offer you the position of Chief Human Resources Officer. Our offer is contingent on a successful background check being completed and compensation details are subject to board approval. You'd work from the Lexington office, travel from time to time, including to our global offices. You would report to me as pa

May 29, 2019 EX-4.2

Description of Securities

Exhibit 4.2 DESCRIPTION OF SECURITIES The following descriptions are summaries of the material terms of the Memorandum of Association and Articles of Association (the “Articles of Association”) of Mimecast Limited, a corporation organized under the laws of Jersey, Channel Islands (Company No. 119119) (the “Company”). Reference is made to the more detailed provisions of the Articles of Association.

May 29, 2019 EX-10.8

Mimecast Limited 2015 Employee Share Purchase Plan

Exhibit 10.8 MIMECAST LIMITED 2015 EMPLOYEE SHARE PURCHASE PLAN The purpose of the Mimecast Limited 2015 Employee Stock Purchase Plan (“the Plan”) is to provide eligible employees of Mimecast Limited (the “Company”) and each Designated Subsidiary (as defined in Section 11) with opportunities to purchase ordinary shares of the Company (the “Ordinary Shares”). 1,100,000 Ordinary Shares have been app

May 29, 2019 EX-10.42

Lease of 4th Floor of 1 Finsbury Avenue, London EC2 dated 29 March 2019 between B.L.C.T. (PHC 15A) Limited, Mimecast Services Limited and Mimecast Limited

EX-10.42 8 mime-ex1042652.htm EX-10.42 Exhibit 10.42 Execution version 29 March 2019 B.L.C.T. (PHC 15A) LIMITED and MIMECAST SERVICES LIMITED and MIMECAST LIMITED 1 FINSBURY AVENUE, LONDON EC2 LEASE OF 4th FLOOR Herbert Smith Freehills LLP 11/464794755 1UKMATTERS:45919740.1 TABLE OF CONTENTS 1 INTERPRETATION 1 2 DEMISE HABENDUM AND REDDENDUM 10 3 TENANT'S COVENANTS 11 Rent 11 Outgoings 11 Water ga

May 29, 2019 EX-10.40

Second Amendment to Lease dated as of the 26th day of March 2019 by and between 191 Spring Street Trust and Mimecast North America, Inc.

Exhibit 10.40 SECOND AMENDMENT TO LEASE SECOND AMENDMENT TO LEASE dated as of this 26 day of March, 2019 (the “Second Amendment Effective Date”) by and between 191 SPRING STREET TRUST u/d/t dated May 6, 1985, as the same may have been amended (“Landlord”), and MIMECAST NORTH AMERICA, INC., a Delaware corporation (“Tenant”). RECITALS By Lease dated February 17, 2017 (the “Lease”), Landlord did leas

May 13, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 13, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or orga

May 13, 2019 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces Fourth Quarter and Full Year 2019 Financial Results Fourth Quarter Highlights • Total revenue of $92.2 million grew 26% yoy on a GAAP basis and 32% in constant currency • Added 1,100 net new customers. Total customers 34,400 globally • Revenue retention rate of 111% • Gross profit percentage of 73% • GAAP EPS of $(0.03) per diluted share, Non-GAAP EPS of $0.07 per d

May 10, 2019 SC 13G/A

MIME / Mimecast Limited / BROWN ADVISORY INC - BROWN ADVISORY INCORPORATED Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* MIMECAST LIMITED (Name of Issuer) (Title of Class of Securities) G14838109 (CUSIP Number) April 30, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X]

May 10, 2019 EX-99

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT This Joint Filing Agreement, dated as of May 10, 2019 is by and among Whale Rock Capital Management LLC and Alexander Sacerdote (collectively, the "Filers"). Each of the Filers may be required to file with the United States Securities and Exchange Commission a statement on Schedule 13G and/or 13D with respect to Ordinary Shares, $0.012 par value, of Mimecast Lim

May 10, 2019 SC 13G

MIME / Mimecast Limited / Whale Rock Capital Management LLC - SC 13G Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) Whale Rock Capital Management LLC 2 International Place, 24th Floor Boston, MA 02110 (617) 502-9909 (Name, Address and

April 8, 2019 8-K

Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 5, 2019 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation) (

March 19, 2019 EX-10.1

Mimecast Limited Executive Cash Incentive Bonus Plan – FY 2020

EX-10.1 Metrics & Weighting 80% Revenue / 20% Adjusted EBITDA Awards are interpolated between achievement percents (e.g., 100.2% achievement results in award of 102%). Each metric is capped at 200% of award quarterly; overall quarterly award payments are capped at 100% with any overachievement earned to be reconciled at year end. If the full year metric target is achieved, then any quarters that w

March 19, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): March 13, 2019 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporat

March 11, 2019 SC 13G

MIME / Mimecast Limited / BROWN ADVISORY INC - BROWN ADVISORY INCORPORATED Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 MIMECAST LIMITED (Name of Issuer) (Title of Class of Securities) G14838109 (CUSIP Number) February 28, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [

February 14, 2019 SC 13G/A

MIME / Mimecast Limited / Insight Venture Partners VII, L.P. - SCHEDULE 13G/A, #2 Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 2)* MIMECAST LIMITED (Name of Issuer) ORDINARY SHARES, $0.012 NOMINAL VALUE (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2018 (Date of

February 13, 2019 SC 13G/A

MIME / Mimecast Limited / Bauer Peter - SC 13G AMENDMENT NO. 3 Passive Investment

SC 13G Amendment No. 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 3)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2018 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule

February 13, 2019 SC 13G/A

MIME / Mimecast Limited / Murray Neil - SC 13G AMENDMENT NO. 3 Passive Investment

SC 13G Amendment No. 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 3)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2018 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule

February 11, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 11, 2019 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

February 11, 2019 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

Exhibit 99.1 Mimecast Announces Third Quarter 2019 Financial Results Third Quarter Highlights • Total revenue of $87.6 million grew 30% yoy on a GAAP basis and 33% in constant currency • Added 1,000 net new customers. Total customers 33,300 globally • Revenue retention rate of 110% • Gross profit percentage of 73% • GAAP EPS of $0.01 per diluted share, Non-GAAP EPS of $0.09 per diluted share Lexin

February 11, 2019 EX-99.1

Rafe Brown joins Mimecast as New Chief Financial Officer Brings Over Two Decades of Financial Leadership in Software Companies to Mimecast

EX-99.1 Exhibit 99.1 Rafe Brown joins Mimecast as New Chief Financial Officer Brings Over Two Decades of Financial Leadership in Software Companies to Mimecast Lexington, MA – February 11, 2019 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced the appointment of Rafe Brown to the position of Chief Financial Officer (CFO), effective March 18, 2019. Rafe w

February 11, 2019 EX-10.1

Offer Letter between Mimecast Limited and Rafe Brown, dated February 7, 2019.

EX-10.1 Exhibit 10.1 February 7, 2019 Rafe Brown 60 Sunset Rd, Weston, MA, 02493 Dear Rafe, Mimecast is pleased to offer you the position of Chief Financial Officer. Our offer is contingent on a successful background check being completed and compensation details are subject to board approval. You’d work from the Lexington office, travel from time to time, including to our global offices. You woul

February 11, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): February 7, 2019 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation

February 11, 2019 EX-10.43

Deed of Variation dated January 17, 2019 to Agreement for Lease dated as of January 2, 2018 by and between Bluebutton Developer Company (2012) Limited, Bluebutton Properties UK Limited, B.L.C.T. (PHC 15A) Limited, Mimecast Services Limited and Mimecast Limited.

EX-10.43 2 mime-ex1043237.htm EX-10.43 Exhibit 10.43 B.L.C.T. (PHC 15A) LIMITED and BLUEBUTTON DEVELOPER COMPANY (2012J LIMITED and BLUEBUTTON PROPERTIES UK LIMITED and MIMECAST SERVICES LIMITED and MIMECAST LIMITED DEED OF VARIATION of an agreement for under1ease dated 2 January 2018 relating to the 3ro, 41h and 51h floors of 1 Finsbury Avenue, London EC2 Herbert Smith Freehills LLP 11/510555882

February 11, 2019 10-Q

MIME / Mimecast Limited 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

February 11, 2019 SC 13G/A

MIME / Mimecast Limited / Abdiel Qualified Master Fund LP - SCHEDULE 13G/A FOR MIMECAST LIMITED BY ABDIEL QUALIFIED MASTER FUND Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2018 Date of Event Which Requires Filing of this Statement Check the appropriate box to designate the rule pursuant t

February 8, 2019 SC 13G/A

MIME / Mimecast Limited / Index Ventures V (Jersey), L.P. - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 4)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 nominal value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate th

January 29, 2019 8-K

Financial Statements and Exhibits, Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 29, 2019 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation

January 29, 2019 EX-99.1

Mimecast Expands Data Migration Services with Acquisition of Simply Migrate

EX-99.1 Exhibit 99.1 Mimecast Expands Data Migration Services with Acquisition of Simply Migrate January 29, 2019, Lexington, MA – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired Simply Migrate Ltd., an innovative provider of archive data migration technology. With this acquisition, Mimecast expands its migration services with a rich port

December 18, 2018 EX-99.1

Mimecast Welcomes Bob Schechter to Board of Directors

EX-99.1 Exhibit 99.1 Mimecast Welcomes Bob Schechter to Board of Directors Lexington, MA – December 18, 2018 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced Bob Schechter has joined its Board of Directors, effective January 1, 2019. Schechter is currently a corporate board member, investor and advisor to several early stage businesses. “Bob is a great

December 18, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): December 18, 2018 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorpo

November 8, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 8, 2018 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or

November 8, 2018 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

EX-99.1 2 mime-ex9916.htm EX-99.1 Exhibit 99.1 Mimecast Announces Second Quarter 2019 Financial Results Second Quarter Highlights • Total revenue of $82.2 million grew 30% yoy on a GAAP basis and 32% in constant currency • Added 900 new customers. Total customers 32,200 globally • Revenue retention rate of 110% • Gross profit percentage of 73% • GAAP EPS of $(0.03) per diluted share, Non-GAAP EPS

November 8, 2018 EX-10.40

Israeli Form of Agreements under the Mimecast Limited 2015 Share Option and Incentive Plan

EX-10.40 3 mime-ex1040237.htm EX-10.40 Exhibit 10.40 102 SHARE OPTION AGREEMENT FOR EMPLOYEES UNDER THE Israeli SUB-PLAN TO THE MIMECAST LIMITED 2015 SHARE OPTION AND INCENTIVE PLAN Name of Optionee: No. of Option Shares: Option Exercise Price per Share: Grant Date: Commencement Date: Type of Option: 102 Capital Gains Track Grant Expiration Date: Vesting Schedule: See Appendix A Pursuant to Mimeca

November 8, 2018 EX-10.42

Amendment to Lease Agreement dated September 5, 2018 between PCPI UT Owner, LP, as successor-in-interest, and Mimecast North America, Inc.

EX-10.42 5 mime-ex1042166.htm EX-10.42 Exhibit 10.42 September 5, 2018 Mimecast North America, Inc. 191 Spring Street Lexington, MA 02421 Attn: Peter Campbell Re: That certain Lease, dated January 4, 2013, as amended from time to time prior to the date hereof (the "Lease") by and between PCPI UT Owner, LP, a Delaware limited partnership, as successor in interest to SP Millennium Center, L.P., a De

November 8, 2018 EX-10.39

Israeli Sub-Plan to the Mimecast Limited 2015 Share Option and Incentive Plan

EX-10.39 2 mime-ex1039167.htm EX-10.39 Exhibit 10.39 MIMCAST LIMITED ISRAELI SUB-PLAN TO 2015 SHARE OPTION AND INCENTIVE PLAN MIMCAST LIMITED ISRAELI SUB-PLAN TO 2015 SHARE OPTION AND INCENTIVE PLAN 1. Special Provisions for Persons Who are Israeli Taxpayers 1.1This Israeli Sub-Plan (the “Sub-Plan”) to Mimecast Limited's 2015 Share Option and Incentive Plan (the “Plan”), is made and entered effect

November 8, 2018 10-Q

MIME / Mimecast Limited 10-Q 20180930 (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

November 8, 2018 EX-10.41

First Amendment to Lease dated as of the 8th day of August 2018 by and between 191 Spring Street Trust and Mimecast North America, Inc.

EX-10.41 4 mime-ex1041165.htm EX-10.41 Exhibit 10.41 FIRST AMENDMENT TO LEASE FIRST AMENDMENT TO LEASE dated as of this 8thday of August, 2018 by and between 191 SPRING STREET TRUST u/d/t dated May 6, 1985, as the same may have been amended (“Landlord”), and MIMECAST NORTH AMERICA, INC., a Delaware corporation (“Tenant”). RECITALS By Lease dated February 17, 2017 (the “Lease”), Landlord did lease

October 12, 2018 8-K/A

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 31, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of

October 12, 2018 EX-99.3

MIMECAST LIMITED UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

EX-99.3 4 mime-ex9936.htm EX-99.3 Exhibit 99.3 MIMECAST LIMITED UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION The following unaudited pro forma condensed combined financial statements (the “Pro Forma Financial Statements”) of Mimecast Limited, a public limited company organized under the laws of the Bailiwick of Jersey (“Mimecast” or “the Company”), and Solebit LABS Ltd. (“SLL” or “

October 12, 2018 EX-99.2

SOLEBIT LABS LTD. CONSOLIDATED FINANCIAL STATEMENTS AS OF DECEMBER 31, 2017 IN U.S. DOLLARS IN THOUSANDS

Exhibit 99.2 SOLEBIT LABS LTD. CONSOLIDATED FINANCIAL STATEMENTS AS OF DECEMBER 31, 2017 IN U.S. DOLLARS IN THOUSANDS INDEX Page Report of Independent Auditors 2 Consolidated Balance Sheet 3-4 Consolidated Statement of Comprehensive loss 5 Statement of Changes in Shareholders' Equity 6 Consolidated Statement of Cash Flow 7 Notes to Consolidated Financial Statements 8 - 20 - - - - - - - - - - - - -

October 9, 2018 8-K

Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): October 4, 2018 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorpora

September 5, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): September 4, 2018 MIMECAST LIMITED (Exact name of registrant as specified in its charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporatio

September 5, 2018 EX-99.1

Mimecast Announces CFO search as Peter Campbell will step down following a Transition Period

EX-99.1 3 d618017dex991.htm EX-99.1 Exhibit 99.1 Mimecast Announces CFO search as Peter Campbell will step down following a Transition Period Lexington, MA – September 5, 2018 (GLOBE NEWSWIRE) Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced that it will begin a search for a new Chief Financial Officer as Peter Campbell, Mimecast’s CFO, has informed the C

September 5, 2018 EX-10.1

Separation Agreement dated September 4, 2018

EX-10.1 Exhibit 10.1 September 4, 2018 Mr. Peter Campbell c/o Mimecast North America, Inc. 191 Spring Street Lexington, MA 02421 Re: Separation Agreement Dear Peter: This letter follows our recent discussions regarding your desire to resign from employment with Mimecast North America, Inc. (the “Company”), which includes for this purpose your position as Chief Financial Officer of the Company’s pa

August 9, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 9, 2018 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or other jurisdiction of incorporation or or

August 9, 2018 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

EX-99.1 2 mime-ex9916.htm EX-99.1 Exhibit 99.1 Mimecast Announces First Quarter 2019 Financial Results First Quarter Highlights • Total revenue of $78.4 million grew 35% yoy on a GAAP basis and 31% in constant currency • Added 900 new customers. Total customers 31,300 globally • Revenue retention rate of 110% • Gross profit percentage of 73% • GAAP EPS of $(0.06) per diluted share, Non-GAAP EPS of

August 9, 2018 10-Q

MIME / Mimecast Limited 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37637 MIMECAST LIMITED (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey Not applicable (State or other jurisdiction of incorporation or organization) (I.

July 31, 2018 EX-2.1

Share Purchase Agreement dated as of July 31, 2018 by and among MSL, SLL, the shareholders of SLL and Shareholder Representative Services LLC, as the Representative

EX-2.1 Exhibit 2.1 Execution Version SHARE PURCHASE AGREEMENT by and among MIMECAST SERVICES LIMITED SOLEBIT LABS LTD. THE COMPANY SHAREHOLDERS LISTED ON EXHIBIT A HERETO AND SHAREHOLDER REPRESENTATIVE SERVICES LLC, AS THE REPRESENTATIVE JULY 31, 2018 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INTERPRETATIONS 2 1.1 Certain Definitions 2 1.2 Other Capitalized Terms 15 1.3 Certain Interpretati

July 31, 2018 EX-99.1

Mimecast Announces Acquisition of Solebit Acquisition Offers Enhanced Protection Against Advanced Cyberattacks, Zero-day Threats and Malware

EX-99.1 Exhibit 99.1 Mimecast Announces Acquisition of Solebit Acquisition Offers Enhanced Protection Against Advanced Cyberattacks, Zero-day Threats and Malware Lexington, MASS – July 31, 2018 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired security software developer Solebit for approximately $88M net of cash acquired. Solebit’s techn

July 31, 2018 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 31, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation) (

July 27, 2018 DEF 14A

MIME / Mimecast Limited DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 24, 2018 EX-10.7

Security Interest Agreement dated as of July 23, 2018, between Mimecast Offshore Limited and JPMorgan Chase Bank, N.A., as the administrative agent.

EX-10.7 Exhibit 10.7 DATED: July 23, 2018 MIMECAST OFFSHORE LIMITED as Grantor and JPMORGAN CHASE BANK, N.A. as Administrative Agent and secured party SECURITY INTEREST AGREEMENT in relation to (i) the capital of each Company (ii) certain contract rights, (iii) certain intellectual property, (iv) each Deposit Account, and (v) other intangible movable property situate in Jersey TABLE OF CONTENTS 1.

July 24, 2018 EX-10.4

Patent Security Agreement dated as of July 23, 2018, by and between Mimecast Services Limited, in favor of JPMorgan Chase Bank, N.A., as administrative agent to the Lenders party to the Credit Agreement.

EX-10.4 5 d551138dex104.htm EX-10.4 Exhibit 10.4 PATENT SECURITY AGREEMENT This PATENT SECURITY AGREEMENT (this “Agreement”), dated as of July 23, 2018, is made by MIMECAST SERVICES LIMITED, a private company incorporated in England and Wales with registration number 4901524, (the “Grantor”), in favor of JPMORGAN CHASE BANK, N.A., in its capacity as administrative agent for the Lenders party to th

July 24, 2018 EX-10.2

Pledge and Security Agreement (the “Security Agreement”) dated as of July 23, 2018, by and among Mimecast UK Limited, the Grantors (as defined in the Security Agreement) and JPMorgan Chase Bank, N.A., as administrative agent to the Lenders party to the Credit Agreement.

EX-10.2 Exhibit 10.2 PLEDGE AND SECURITY AGREEMENT THIS PLEDGE AND SECURITY AGREEMENT (as it may be amended, restated, amended and restated, supplemented or otherwise modified from time to time, this “Security Agreement”) is entered into as of July 23, 2018, by and among MIMECAST UK LIMITED, a limited company organized under the laws of England and Wales (“Mimecast UK”), the other parties identifi

July 24, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 23, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation) (

July 24, 2018 EX-10.6

Security Interest Agreement dated as of July 23, 2018, between Mimecast Limited and JPMorgan Chase Bank, N.A., as the administrative agent.

EX-10.6 7 d551138dex106.htm EX-10.6 Exhibit 10.6 DATED: July 23, 2018 MIMECAST LIMITED as Grantor and JPMORGAN CHASE BANK, N.A. as Administrative Agent and secured party SECURITY INTEREST AGREEMENT in relation to (i) the capital of each Company (ii) certain contract rights, (iii) certain intellectual property, (iv) each Deposit Account, and (v) other intangible movable property situate in Jersey T

July 24, 2018 EX-10.5

Security Agreement dated as of July 23, 2018 by and between Mimecast UK Limited, Mimecast Services Limited, Mimecast USD Limited, Mimecast Development Limited, as the original chargors, and JPMorgan Chase Bank, N.A., as the collateral agent.

EX-10.5 Exhibit 10.5 SECURITY AGREEMENT DATED July 23, 2018 BETWEEN THE PERSONS LISTED IN SCHEDULE 1 as Chargors AND JPMORGAN CHASE BANK, N.A. As Collateral Agent CONTENTS Clause Page 1. Interpretation 1 2. Creation of Security 4 3. Default Interest 8 4. Undertakings 8 5. Restrictions on dealings 9 6. Shares 9 7. Bank Accounts 12 8. Perfection Requirements 12 9. When Security becomes enforceable 1

July 24, 2018 EX-10.3

Trademark Security Agreement dated as of July 23, 2018, by and among Ataata, Inc., Mimecast Services Limited, in favor of JPMorgan Chase Bank, N.A., as administrative agent to the Lenders party to the Credit Agreement.

EX-10.3 4 d551138dex103.htm EX-10.3 Exhibit 10.3 TRADEMARK SECURITY AGREEMENT This TRADEMARK SECURITY AGREEMENT (this “Agreement”), dated as of July 23, 2018, is made by ATAATA, INC., a Delaware corporation, and MIMECAST SERVICES LIMITED, a private company incorporated in England and Wales with registration number 4901524, (each, a “Grantor,” and collectively, the “Grantors”), in favor of JPMORGAN

July 24, 2018 EX-10.8

Security Interest Agreement dated as of July 23, 2018, between Mimecast Services Limited and JPMorgan Chase Bank, N.A., as the administrative agent.

EX-10.8 9 d551138dex108.htm EX-10.8 Exhibit 10.8 DATED: July 23, 2018 MIMECAST SERVICES LIMITED as Grantor and JPMORGAN CHASE BANK, N.A. as Administrative Agent and secured party SECURITY INTEREST AGREEMENT in relation to contract rights in or pursuant to Loan Agreements TABLE OF CONTENTS 1. DEFINITIONS AND INTERPRETATION 1 2. CREATION, ATTACHMENT AND PERFECTION OF SECURITY INTERESTS 5 3. FURTHER

July 24, 2018 EX-10.1

Credit Agreement (the “Credit Agreement”) dated as of July 23, 2018, by and among Mimecast Limited (the “Company”), certain of the Company’s subsidiaries party thereto, as guarantors, certain financial institutions party thereto from time to time, as Lenders, and JPMorgan Chase Bank, N.A., as administrative agent.

EX-10.1 Exhibit 10.1 CREDIT AGREEMENT dated as of JULY 23, 2018 among MIMECAST LIMITED, as Borrower, THE OTHER LOAN PARTIES PARTY HERETO, THE LENDERS PARTY HERETO, and JPMORGAN CHASE BANK, N.A., as Administrative Agent JPMORGAN CHASE BANK, N.A. as Sole Bookrunner and Sole Lead Arranger TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS SECTION 1.01 Defined Terms 1 SECTION 1.02 Classification of Loans a

July 24, 2018 EX-10.9

Security Interest Agreement dated as of July 23, 2018, between Mimecast UK Limited and JPMorgan Chase Bank, N.A., as the administrative agent.

EX-10.9 10 d551138dex109.htm EX-10.9 Exhibit 10.9 DATED: July 23, 2018 MIMECAST UK LIMITED as Grantor and JPMORGAN CHASE BANK, N.A. as Administrative Agent and secured party SECURITY INTEREST AGREEMENT in relation to the capital of Mimecast Offshore Limited and contract rights in or pursuant to Loan Agreements TABLE OF CONTENTS 1. DEFINITIONS AND INTERPRETATION 1 2. CREATION, ATTACHMENT AND PERFEC

July 24, 2018 EX-10.10

Amendment to Employment Agreement dated as of July 23, 2018, by and between Mimecast North America, Inc. and Peter Campbell.

EX-10.10 Exhibit 10.10 AMENDMENT TO EMPLOYMENT AGREEMENT This Amendment (“Amendment”) is entered into by and between Mimecast North America, Inc. (the “Company”), a Delaware corporation with its principal place of business at Lexington, Massachusetts, and Peter Campbell (the “Executive”) as of July 23, 2018. WHEREAS, the Company and the Executive entered into an Employment Agreement dated as of Ju

July 10, 2018 EX-99.1

Mimecast Acquires Ataata Acquisition Expands Mimecast to Offer Cybersecurity Awareness Capabilities with Leading Training Content, Risk Scoring and Real-World Simulation Attack Scenarios

EX-99.1 Exhibit 99.1 Mimecast Acquires Ataata Acquisition Expands Mimecast to Offer Cybersecurity Awareness Capabilities with Leading Training Content, Risk Scoring and Real-World Simulation Attack Scenarios Lexington, MA – July 10, 2018 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced it has acquired Ataata, Inc. Ataata is a cyber security training and

July 10, 2018 8-K

MIME / Mimecast Limited 8-K (Current Report)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 9, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation) (C

May 29, 2018 S-8

MIME / Mimecast Limited FORM S-8

FORM S-8 As filed with the Securities and Exchange Commission on May 29, 2018 Registration No.

May 29, 2018 EX-10.23

Employment Agreement dated as of June 12, 2015 between Mimecast North America, Inc. and Peter Campbell

Exhibit 10.23 EMPLOYMENT AGREEMENT This Agreement is made and entered into by and between Mimecast North America, Inc. (the “Company”), a Delaware corporation with its principal place of business at Waltham, Massachusetts, and Peter Campbell (the “Executive”) as of June 12, 2015 (the “Effective Date”). WHEREAS, the Executive has served as the Chief Financial Officer of the Company’s parent, Mimeca

May 29, 2018 EX-10.24

Offer Letter dated July 9, 2015 between Mimecast North America, Inc. and Edward Jennings

Exhibit 10.24 July 9, 2015 Mr. Edward Jennings Dear Ed, Mimecast (the “Company”) is pleased to offer you the full-time position of Chief Operating Officer, reporting to me. You will work from the Watertown, MA office beginning on 1 August 2015. Your offer of employment is as follows: i. Your base annual salary will be $300,000.00 to be paid on a semi-monthly basis; ii. You will be eligible to part

May 29, 2018 EX-10.21

Amended and Restated Employment Agreement dated as of September 2, 2015 between Mimecast North America, Inc. and Peter C. Bauer

Exhibit 10.21 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This Amended and Restated Employment Agreement (“Agreement”) is made as of the 2nd day of September, 2015 (the “Effective Date”), between Mimecast North America, Inc., a Delaware corporation (the “Company”), and Peter C. Bauer (the “Executive”). WHEREAS, the Company and the Executive previously entered into an employment agreement, dated Dece

May 29, 2018 EX-10.7

Form of Agreements under the Mimecast Limited 2015 Share Option and Incentive Plan

Exhibit 10.7 NON-QUALIFIED SHARE OPTION AGREEMENT FOR COMPANY EMPLOYEES UNDER THE MIMECAST LIMITED 2015 SHARE OPTION AND INCENTIVE PLAN Name of Optionee: ###PARTICIPANTNAME### No. of Option Shares: ###TOTALAWARDS### Option Exercise Price per Share: ###GRANTPRICE### Grant Date: ###GRANTDATE### Expiration Date: ###EXPIRYDATE### Pursuant to the Mimecast Limited 2015 Share Option and Incentive Plan as

May 29, 2018 EX-10.6

German Sub-Plan to the Mimecast Limited 2015 Share Option and Incentive Plan

Exhibit 10.6 GERMAN SUB-PLAN TO THE Mimecast Limited 2015 SHARE OPTION AND INCENTIVE PLAN SECTION 1. GENERAL PURPOSE OF THE PLAN; DEFINITIONS The name of the plan is the German sub-plan to the Mimecast Limited 2015 Share Option and Incentive Plan (the “German Sub-Plan”). The German Sub-Plan is designed to be a sub-plan under the Mimecast Limited 2015 Share Option and Incentive Plan (the “US Plan”

May 29, 2018 EX-10.15

Second Amendment to Lease dated as of May 26, 2017 by and between Mimecast North America, Inc. and Whetstone Riverworks Holdings, LLC (as successor in interest to Riverworks Watertown Holdings, LLC and Farley White Aetna Mills, LLC)

Exhibit 10.15 SECOND AMENDMENT TO LEASE This SECOND AMENDMENT TO LEASE (this “Amendment”) is entered into and effective as of the 26th day of May, 2017 (the “Second Amendment Effective Date”) by and between WHETSTONE RIVERWORKS HOLDINGS, LLC, a Delaware limited liability company, as landlord (“Landlord”), as successor-in-interest to Farley White Aetna Mills, LLC and Riverworks Watertown Holdings,

May 29, 2018 10-K

MIME / Mimecast Limited 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO . Commission File Number 001-37637 MIMECAST LIMITED

May 29, 2018 EX-10.27

Mimecast Limited Executive Incentive Plan – FY2019

Mimecast Limited - FY19 ExCo Incentive Plan Design Metrics & Weighting 80% Revenue / 20% Adjusted EBITDA Awards are interpolated between achievement percents (e.

May 29, 2018 EX-10.22

Service Agreement dated as of 22 December 2009 between Mimecast UK Limited (formerly Mimecast Limited) and Neil Murray, as amended by that certain Deed of Amendment dated as of June 12, 2015

Exhibit 10.22 DATED 22 December 2009 MIMECAST LIMITED and NEIL MURRAY SERVICE AGREEMENT 5 New Street Square | London EC4A 3TW Tel +44 (0)20 7300 7000 Fax +44 (0)20 7300 7100 DX 41 London www.taylorwessing.com Berlin | Brussels | Cambridge | Dubai | Diisseldorf | Franklurt | Hamburg | London | Munich | Paris | Beijing | Shanghai | Alicante INDVE\0012\Documents\Employment\Neil Murray - Service Agree

May 29, 2018 EX-10.20

Agreement for Lease dated as of January 2, 2018 by and between Bluebutton Developer Company (2012) Limited, Bluebutton Properties UK Limited, B.L.C.T. (PHC 15A) Limited, Mimecast Services Limited, and the Company, and the related Underleases

Exhibit 10.20 EXECUTION VERSION 2 January 2018 B.L.C.T. (PHC 15A) LIMITED and BLUEBUTTON DEVELOPER COMPANY (2012) LIMITED and BLUEBUTTON PROPERTIES UK LIMITED and MIMECAST SERVICES LIMITED and MIMECAST LIMITED AGREEMENT FOR UNDERLEASE of THE 3RD, 4TH AND 5TH FLOORS OF 1 FINSBURY AVENUE, LONDON EC2 Herbert Smith Freehills LLP TABLE OF CONTENTS Clause Headings Page 1. DEFINITIONS 1 2. INTERPRETATION

May 29, 2018 EX-10.25

Offer Letter dated July 22, 2016 between Mimecast North America, Inc. and Robert P. Nault

EX-10.25 11 mime-ex1025739.htm EX-10.25 Exhibit 10.25 July 22, 2016 Revised Robert P. Nault Dear Bob, Mimecast is pleased to offer you the position of Senior Vice President and General Counsel with a start date of September 12, 2016 contingent on successful background and reference check. You will work from the Watertown office and report to me. Our offer of employment is as follows: i. Your semi-

May 29, 2018 EX-10.26

Offer Letter dated October 12, 2017 between Mimecast North America, Inc. and Janet Bishop Levesque

Exhibit 10.26 October 12, 2017 Janet B. Levesque Dear Janet, Mimecast is pleased to offer you the position of Senior Vice President Systems, Risk and Security contingent on successful background and reference check. You will work from the Watertown office and report to me. Our offer of employment is as follows: i. Your semi-monthly salary will be $11,458.34 ($275,000.16 annualized), to be paid on

May 29, 2018 EX-10.9

German Sub-Plan to the Mimecast Limited 2015 Employee Share Purchase Plan

Exhibit 10.9 GERMAN SUB-PLAN TO THE MIMECAST LIMITED 2015 EMPLOYEE SHARE PURCHASE PLAN The purpose of the German Sub-Plan to the Mimecast Limited 2015 Employee Share Purchase Plan (the “German Sub-Plan”) is to provide eligible employees of Mimecast Germany GmbH (“Mimecast Germany”) with opportunities to purchase Ordinary Shares of Mimecast Limited (the “Ordinary Shares”). 1,100,000 Ordinary Shares

May 29, 2018 EX-21.1

Subsidiaries of the Registrant

EX-21.1 14 mime-ex211172.htm EX-21.1 Exhibit 21.1 Subsidiaries of the Registrant Name of Subsidiary Jurisdiction of Incorporation or Organization Mimecast UK Limited England & Wales Mimecast Services Limited England & Wales Mimecast North America, Inc. Delaware Mimecast South Africa Pty Ltd. South Africa Mimecast Australia Pty Ltd. Australia Mimecast Offshore Ltd. Jersey, Channel Islands Mimecast

May 29, 2018 EX-99.1

MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEET (in thousands) As of March 31, 2018 Assets Current assets Cash and cash equivalents $ 78,339 Short-term investments 58,871 Accounts receivable, net 65,392 Prepaid expenses and other current assets

EX-99.1 Exhibit 99.1 MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEET (in thousands) (unaudited) As of March 31, 2018 Assets Current assets Cash and cash equivalents $ 78,339 Short-term investments 58,871 Accounts receivable, net 65,392 Prepaid expenses and other current assets 15,302 Total current assets 217,904 Property and equipment, net 123,822 Intangible assets, net 9,819 Goodwill 5,631

May 29, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 22, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporation) (C

May 14, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 14, 2018 MIMECAST LIMITED (Exact name of Registrant as Specified in Its Charter) Bailiwick of Jersey Not Applicable (State or other jurisdiction of incorporation or organization)

May 14, 2018 EX-99.1

4 MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

EX-99.1 2 mime-ex99114.htm EX-99.1 Exhibit 99.1 Mimecast Announces Fourth Quarter and Full Year 2018 Financial Results Fourth Quarter Highlights • Total revenue of $73.4 million grew 40% yoy on a GAAP basis and 33% in constant currency • Added 1,200 new customers. Total customers 30,400 globally • Revenue retention rate of 110% • Gross profit percentage of 73% • GAAP EPS of $(0.14) per diluted sha

April 2, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2018 Mimecast Limited (Exact Name of Registrant as Specified in its Charter) Bailiwick of Jersey 001-37637 Not Applicable (State or Other Jurisdiction of Incorporat

February 28, 2018 SC 13G/A

MIME / Mimecast Limited / Murray Neil - SC 13G AMENDMENT NO. 2 Passive Investment

SC 13G Amendment No. 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 2)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2017 (Date of event which requires filing of this statement) Check the appropriate box to designate the rule

February 28, 2018 SC 13G/A

MIME / Mimecast Limited / Bauer Peter - SCHEDULE 13G AMENDMENT NO. 2 Passive Investment

Schedule 13G Amendment No. 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 (Amendment No. 2)* Mimecast Limited (Name of Issuer) Ordinary Shares (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2017 (Date of event which requires filing of this statement) Check the appropriate box to designate th

February 14, 2018 SC 13G

MIME / Mimecast Limited / Index Ventures V (Jersey), L.P. - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 nominal value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

February 12, 2018 6-K

MIME / Mimecast Limited 6-K (Current Report of Foreign Issuer)

mime-6k20171231.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending December 31, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant?s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United King

February 12, 2018 EX-99.1

MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

EX-99.1 2 mime-ex9916.htm EX-99.1 Exhibit 99.1 Mimecast Announces Third Quarter 2018 Financial Results • Total revenue of $67.3 million grew 39% yoy on a GAAP basis and 36% in constant currency • Added 1,100 new customers. Total customers 29,200 globally • Revenue retention rate of 111% • Gross profit percentage of 74% • GAAP EPS of $(0.05) per diluted share, Non-GAAP EPS of $0.03 per diluted shar

February 12, 2018 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending December 31, 2017 Commission File Number 001-37637 MIME

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending December 31, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant’s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom (Address of prin

February 12, 2018 EX-99

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Exhibit 99.2 Exhibit 99.2 Management?s Discussion and Analysis for the Three and Nine Months Ended December 31, 2017 and 2016 MANAGEMENT?S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis of our financial condition and results of our operations should be read in conjunction with the (1) unaudited condensed consolidated financial stateme

February 12, 2018 EX-99

MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts)

Exhibit 99.1 Exhibit 99.1 Unaudited Condensed Consolidated Financial Statements as of December 31, 2017 and March 31, 2017 and for the Three and Nine Months Ended December 31, 2017 and 2016 MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts) (unaudited) As of December 31, As of March 31, 2017 2017 Assets Current assets Cash and cash equivalents

January 31, 2018 SC 13G/A

MIME / Mimecast Limited / Abdiel Qualified Master Fund LP - SCHEDULE 13G/A FOR MIMECAST LIMITED BY ABDIEL QUALIFIED MASTER FUND, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mimecast Limited (Name of Issuer) Ordinary Shares, $0.012 par value (Title of Class of Securities) G14838109 (CUSIP Number) December 31, 2017 Date of Event Which Requires Filing of this Statement Check the appropriate box to designate the rule pursuant t

December 18, 2017 6-K

MIME / Mimecast Limited 6-K (Current Report of Foreign Issuer)

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 December 18, 2017 MIMECAST LIMITED CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom Tel: +44 0207 847 8700 (Address, Including ZIP Code, and Telephone Number, Including Area Code, of Re

November 8, 2017 6-K

MIME / Mimecast Limited 6-K (Current Report of Foreign Issuer)

mime-6k20170930.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending September 30, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant?s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kin

November 8, 2017 EX-99.1

MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

mime-ex9917.htm Exhibit 99.1 Mimecast Announces Second Quarter 2018 Financial Results ? Total revenue of $63.1 million grew 42% yoy on a GAAP basis and 41% in constant currency ? Added 900 new customers. Total customers 28,200 globally ? Revenue retention rate of 111% ? Gross profit percentage of 74% ? GAAP EPS of $(0.02) per basic and diluted share, Non-GAAP EPS of $0.00 per basic and diluted sha

November 8, 2017 EX-99.1

Mimecast Welcomes Gerri Elliott to Board of Directors

EX-99.1 Exhibit 99.1 Mimecast Welcomes Gerri Elliott to Board of Directors Watertown, MA – November 8, 2017 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today announced Geraldine (Gerri) Elliott has joined its Board of Directors. Gerri Elliott is the former Chief Customer Officer of Juniper Networks and founder of Broadrooms.com, a website focused on executive wome

November 8, 2017 6-K

MIME / Mimecast Limited FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 November 8, 2017 MIMECAST LIMITED CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom Tel: +44 0207 847 8700 (Address, Including ZIP Code, and Telephone Number, Including Area Code, o

November 8, 2017 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending September 30, 2017 Commission File Number 001-37637 MIM

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending September 30, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant’s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom (Address of pri

November 8, 2017 EX-99

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Exhibit 99.2 Exhibit 99.2 Management?s Discussion and Analysis for the Three and Six Months Ended September 30, 2017 and 2016 MANAGEMENT?S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis of our financial condition and results of our operations should be read in conjunction with the (1) unaudited condensed consolidated financial stateme

November 8, 2017 EX-99

MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts)

Exhibit 99.1 Exhibit 99.1 Unaudited Condensed Consolidated Financial Statements as of September 30, 2017 and March 31, 2017 and for the Three and Six Months Ended September 30, 2017 and 2016 MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts) (unaudited) As of September 30, As of March 31, 2017 2017 Assets Current assets Cash and cash equivalen

August 7, 2017 6-K

Mimecast 6-K (Current Report of Foreign Issuer)

mime-6k20170630.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending June 30, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant?s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom

August 7, 2017 EX-99.1

MIMECAST LIMITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share amounts)

mime-ex9916.htm Exhibit 99.1 Mimecast Announces First Quarter 2018 Financial Results • Total revenue of $58.2 million grew 40% yoy on a GAAP basis and 43% in constant currency • Added 900 new customers. Total customers 27,300 globally • Revenue retention rate of 111% • Gross profit percentage of 74% • GAAP EPS of $(0.03) per basic and diluted share, Non-GAAP EPS of $0.01 per basic and diluted shar

August 7, 2017 EX-99

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Exhibit 99.2 Exhibit 99.2 Management?s Discussion and Analysis for the Three Months Ended June 30, 2017 and 2016 MANAGEMENT?S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis of our financial condition and results of our operations should be read in conjunction with the (1) unaudited condensed consolidated financial statements and the r

August 7, 2017 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending June 30, 2017 Commission File Number 001-37637 MIMECAST

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the period ending June 30, 2017 Commission File Number 001-37637 MIMECAST LIMITED (Translation of registrant’s name into English) CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom (Address of principa

August 7, 2017 EX-99

MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts)

Exhibit 99.1 Exhibit 99.1 Unaudited Condensed Consolidated Financial Statements as of June 30, 2017 and March 31, 2017 and for the Three Months Ended June 30, 2017 and 2016 MIMECAST LIMITED CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands, except share and per share amounts) (unaudited) As of June 30, As of March 31, 2017 2017 Assets Current assets Cash and cash equivalents $ 58,989 $ 51,319 Sh

August 3, 2017 6-K

Mimecast 6-K (Current Report of Foreign Issuer)

6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 August 3, 2017 MIMECAST LIMITED CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom Tel: +44 0207 847 8700 (Address, Including ZIP Code, and Telephone Number, Including Area Code, of Regis

July 7, 2017 6-K

Mimecast FORM 6-K (Current Report of Foreign Issuer)

Form 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 July 7, 2017 Commission File No. 001-37637 MIMECAST LIMITED CityPoint, One Ropemaker Street, Moorgate London EC2Y 9AW United Kingdom Tel: +44 0207 847 8700 (Address, Including ZIP Code, and Telephone Numb

July 7, 2017 EX-99.3

q IF YOU HAVE NOT VOTED VIA THE INTERNET, FOLD ALONG THE PERFORATION, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. q

EX-99.3 4 d415839dex993.htm EX-99.3 Exhibit 99.3 Electronic Voting Instructions Available 24 hours a day, 7 days a week! Instead of mailing your proxy, you may choose the voting method outlined below to vote your proxy. VALIDATION DETAILS ARE LOCATED BELOW IN THE TITLE BAR. Proxies submitted by the Internet must be received by 11:59 pm, London Time, on August 2, 2017. Vote by Internet • Go to www.

July 7, 2017 EX-99.1

THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION

EX-99.1 2 d415839dex991.htm EX-99.1 Exhibit 99.1 THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION If you are in any doubt about the contents of this document, you should immediately consult an appropriately authorised independent financial adviser in your jurisdiction. If you have sold or otherwise transferred all of your shares in Mimecast Limited (the “Company”), please send this

July 7, 2017 EX-99.2

NOTICE OF 2017 ANNUAL GENERAL MEETING EXPLANATORY NOTES ON THE BUSINESS OF THE AGM

EX-99.2 Exhibit 99.2 Mimecast Limited Notice of Annual General Meeting NOTICE OF 2017 ANNUAL GENERAL MEETING EXPLANATORY NOTES ON THE BUSINESS OF THE AGM The background to the business of the Annual General Meeting (“AGM”) of Mimecast Limited (the “Company”) set out above is as follows. Resolution 1 - reports and accounts 1. The directors are required to present to the AGM the Company’s accounts f

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