X0306 4 2022-04-01 false 0001724570 DATTO HOLDING CORP. MSP 0001828746 MENON RADHESH BALAKRISHNAN 101 MERRITT 7 NORWALK CT 06851 false true false false Chief Product Officer Common Stock 2022-04-01 4 M false 28055.00 12.80 A 29006.00 D Common Stock 2022-04-01 4 S false 28055.00 26.78 D 951.00 D Common Stock 2022-04-04 4 M false 4570.00 12.80 A 5521.00 D Common Stock 2022-04-04 4 S false 4570.00 27.29 D 951.00 D Options (Right to Buy) 12.80 2022-04-01 4 M false 28055.00 0.00 D 2030-06-29 Common Stock 28055.00 249445.00 D Options (Right to Buy) 12.80 2022-04-04 4 M false 4570.00 0.00 D 2030-06-29 Common Stock 4570.00 244875.00 D The exercise and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on September 16, 2021. Includes 951 shares acquired under the Company's 2021 Employee Stock Purchase Plan since the last Statement of Changes in Beneficial Ownership was filed by the Reporting Person. This transaction was executed in multiple trades at prices ranging from $26.50 to $27.07 per share. The price reported reflects the weighted average sale price. Upon request by the Issuer, any security holder of the Issuer or the staff of the SEC, the Reporting Person undertakes to provide full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $26.96 to $27.50 per share. The price reported reflects the weighted average sale price. Upon request by the Issuer, any security holder of the Issuer or the staff of the SEC, the Reporting Person undertakes to provide full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Consists of options, of which 25% vested on June 1, 2021, and an additional 6.25% vest quarterly thereafter as long as the Reporting Person continues to be employed as of each respective vesting date. /s/ Adam Collicelli, by Power of Attorney 2022-04-05