Emily N. Tabak - 23 Jun 2022 Form 4 Insider Report for DATTO HOLDING CORP.

Footnote F1

Pursuant to the Agreement and Plan of Merger, dated April 11, 2022, by and among Knockout Parent Inc., Knockout Merger Sub Inc., the Issuer, and, for certain limited purposes set forth in the Merger Agreement, Kaseya Holdings Inc. and Kaseya Inc. (the "Merger Agreement"), each share of the Issuer's common stock ("Common Stock") was canceled and converted into the right to receive $35.50 per share in cash without interest, subject to required withholding taxes.

Footnote F2

Pursuant to the Merger Agreement, as of June 23, 2022 (the "Effective Time"), each restricted stock unit of the Issuer (an "RSU") that is unexpired, unexercised, outstanding and vested as of immediately prior to the Effective Time or that vested in accordance with its terms as a result of the consummation of the merger and other transactions contemplated by the Merger Agreement (a "Vested RSU") was canceled and converted into the right to receive an amount in cash equal to the product of (i) $35.50 and (ii) the total number of shares of Common Stock subject to such Vested RSUs as of immediately prior to the Effective Time.

Footnote F3

Pursuant to the Merger Agreement, RSUs that were outstanding as of immediately prior to the Effective Time that were not Vested RSUs ("Unvested RSUs") were, at the Effective Time, canceled and converted into the right to receive an amount in cash equal to the product of (i) $35.50 and (ii) the total number of shares of Common Stock subject to such Unvested RSUs (the "Cash Replacement RSU Amounts"), which Cash Replacement RSU Amounts will be paid at the same time that the Unvested RSUs would have vested pursuant to their terms.

Footnote F4

Represents RSUs granted to the Reporting Person on April 8, 2022. On June 21, 2022, 6,250 RSUs vested as the applicable RSU agreement was amended to provide for their accelerated vesting. The remaining RSUs, of which 18,750 RSUs will vest on February 9, 2023, and an additional 6.25% will vest quarterly thereafter. At the Effective Time, the 6,250 Vested RSUs were canceled in exchange for a cash payment representing $35.50 for each outstanding Vested RSU. The remaining 93,750 Unvested RSUs were canceled and converted into the right to receive a cash payment which represents $35.50 for each outstanding Unvested RSU, which will vest and be payable at the same time as the Unvested RSUs for which such cash amount was exchanged.