Karen M. Anderson - Aug 10, 2021 Form 4 Insider Report for Mimecast Ltd (MIME)

Signature
/s/ Robert P. Nault, Attorney-in-Fact
Stock symbol
MIME
Transactions as of
Aug 10, 2021
Transactions value $
-$336,953
Form type
4
Date filed
8/12/2021, 05:00 PM
Previous filing
Jul 6, 2021
Next filing
Oct 4, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIME Ordinary Shares Options Exercise $625K +15.6K $40.00 15.6K Aug 10, 2021 Direct
transaction MIME Ordinary Shares Options Exercise $62.1K +1.86K +11.9% $33.38 17.5K Aug 10, 2021 Direct
transaction MIME Ordinary Shares Sale -$965K -16.5K -94.27% $58.54 1K Aug 10, 2021 Direct F1, F2
transaction MIME Ordinary Shares Sale -$59.2K -1K -100% $59.05 0 Aug 10, 2021 Direct F1, F3
holding MIME Restricted Share Units 12.5K Aug 10, 2021 Direct F4, F5
holding MIME Restricted Share Units 9.55K Aug 10, 2021 Direct F4, F6
holding MIME Restricted Share Units 12.2K Aug 10, 2021 Direct F4, F7
holding MIME Restricted Share Units 9.4K Aug 10, 2021 Direct F4, F8

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MIME Share Option (Right to Buy) Options Exercise $0 -15.6K -25% $0.00 46.9K Aug 10, 2021 Ordinary Shares 15.6K $40.00 Direct F9
transaction MIME Share Option (Right to Buy) Options Exercise $0 -1.86K -8.33% $0.00 20.5K Aug 10, 2021 Ordinary Shares 1.86K $33.38 Direct F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 16, 2020.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.99 - $58.98, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.99 - $59.11, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4 Each restricted share unit represents a contingent right to receive one share of the Issuer's Ordinary Shares.
F5 These restricted share units were granted on February 1, 2019. Twenty-five percent (25%) of the units vested on February 1, 2020, twenty-five percent (25%) of the units vested on February 1, 2021, and the remainder of the units vest on an annual basis over the next two (2) years, provided that the Reporting Person remains an employee of the Issuer on such vesting date.
F6 These restricted share units were granted on April 1, 2020. Twenty-five percent (25%) of the units vested on April 1, 2021, and the remainder of the units vest on an annual basis over the next three (3) years, provided that the Reporting Person remains an employee of the Issuer on each such vesting date.
F7 These restricted share units were granted on April 1, 2021. Twenty-five percent (25%) of the units vest on April 1, 2022 and the remainder of the units vest on an annual basis over the next three (3) years, provided that the Reporting Person remains an employee of the Issuer on each such vesting date.
F8 These restricted share units were granted on July 1, 2021. Twenty-five percent (25%) of the units vest on July 1, 2022 and the remainder of the units vest on an annual basis over the next three (3) years, provided that the Reporting Person remains an employee of the Issuer on each such vesting date.
F9 This option was granted on February 1, 2019. Twenty-five percent (25%) of the shares vested on February 1, 2020, and the remainder of the shares vest on a quarterly basis over the next three (3) years, provided that the Reporting Person remains an employee of the Issuer on such vesting date.
F10 This option was granted on April 1, 2020. Twenty-five percent (25%) of the shares vested on April 1, 2021, and the remainder of the shares vest on a quarterly basis over the next three (3) years, provided that the Reporting Person remains an employee of the Issuer on each such vesting date.

Remarks:

Exhibit 24 Power of Attorney (incorporated by reference to Power of Attorney filed as Exhibit 24 to Form 3 filed by the Reporting Person on January 3, 2019).