SANJAY KUMAR SINGH - 20 Jul 2021 Form 4 Insider Report for DATTO HOLDING CORP.

Role: Chief Revenue Officer
Signature: /s/ Adam Collicelli, by Power of Attorney
Issuer symbol: N/A
Transactions as of: 20 Jul 2021
Net transactions value: -$166,400
Form type: 4
Filing time: 22 Jul 2021, 18:44:29 UTC
Previous filing: 24 Jun 2021
Next filing: 21 Dec 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MSP	Common Stock	Options Exercise	$104,700	+10,000	+6.7%	$10.47	160,000	20 Jul 2021	Direct	F1
transaction	MSP	Common Stock	Sale	$271,100	-10,000	-6.2%	$27.11	150,000	20 Jul 2021	Direct	F1, F2

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	MSP	Options (Right to Buy)	Options Exercise	$0	-10,000	-3.8%	$0.000000	256,533	20 Jul 2021	Common Stock	10,000	$10.47	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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 March 16, 2021.
F2	This transaction was executed in multiple trades at prices ranging from $27.00 to $27.27 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.
F3	These options vested 25% on May 1, 2020 and then quarterly at a rate of 6.25% as long as the Reporting Person continues to be employed as of each respective vesting date.