Datto, Inc.

Form 5500

DATTO, INC.

101 Merritt 7, Norwalk, Ct 06851 (203) 822-7722 EIN:87-0806817 Plan Admin:Danielle Bass

Year	Plan Name	Participants BOY/EOY	Assets BOY/EOY
2022	Plan NameDATTO, INC. 401(K) PLAN Plan #001 Participants BOY/EOY1,963 / 0 Assets BOY/EOY$112,503,861 / $0	2022	DATTO, INC. 401(K) PLAN - Plan #001	1,963 / 0	$112,503,861 / $0
2021	Plan NameDATTO, INC. 401(K) PLAN Plan #001 Participants BOY/EOY1,647 / 1,963 Assets BOY/EOY$85,304,767 / $112,503,861	2021	DATTO, INC. 401(K) PLAN - Plan #001	1,647 / 1,963	$85,304,767 / $112,503,861
2021	Plan NameDATTO, INC. EMPLOYEE BENEFIT PLAN Plan #501 Participants BOY/EOY1,255 / 0 Assets BOY/EOY$0 / $0	2021	DATTO, INC. EMPLOYEE BENEFIT PLAN - Plan #501	1,255 / 0	$0 / $0
2020	Plan NameDATTO, INC. 401(K) PLAN Plan #001 Participants BOY/EOY1,516 / 1,647 Assets BOY/EOY$66,043,694 / $85,304,767	2020	DATTO, INC. 401(K) PLAN - Plan #001	1,516 / 1,647	$66,043,694 / $85,304,767
2020	Plan NameDATTO, INC. EMPLOYEE BENEFIT PLAN Plan #501 Participants BOY/EOY1,204 / 0 Assets BOY/EOY$0 / $0	2020	DATTO, INC. EMPLOYEE BENEFIT PLAN - Plan #501	1,204 / 0	$0 / $0
2019	Plan NameDATTO, INC. 401(K) PLAN Plan #001 Participants BOY/EOY1,006 / 1,516 Assets BOY/EOY$28,208,834 / $66,043,694	2019	DATTO, INC. 401(K) PLAN - Plan #001	1,006 / 1,516	$28,208,834 / $66,043,694
2019	Plan NameDATTO, INC. EMPLOYEE BENEFIT PLAN Plan #501 Participants BOY/EOY843 / 0 Assets BOY/EOY$0 / $0	2019	DATTO, INC. EMPLOYEE BENEFIT PLAN - Plan #501	843 / 0	$0 / $0