SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Vista Equity Partners Fund VI, L.P. (Last) (First) (Middle) C/O VISTA EQUITY PARTNERS 4 EMBARCADERO CENTER, 20TH FL. (Street) SAN FRANCISCO CA 94111 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol DATTO HOLDING CORP. [ MSP ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 06/23/2022
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/23/2022		D(1)		113,753,615(1)	D	$35.5	0	I	See Footnote(2)(3)(4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Vista Equity Partners Fund VI, L.P. (Last) (First) (Middle) C/O VISTA EQUITY PARTNERS 4 EMBARCADERO CENTER, 20TH FL. (Street) SAN FRANCISCO CA 94111 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Vista Equity Partners Fund VI GP, L.P. (Last) (First) (Middle) C/O VISTA EQUITY PARTNERS 4 EMBARCADERO CENTER, 20TH FL. (Street) SAN FRANCISCO CA 94111 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* VEPF VI GP. Ltd. (Last) (First) (Middle) C/O VISTA EQUITY PARTNERS 4 EMBARCADERO CENTER, 20TH FL. (Street) SAN FRANCISCO CA 94111 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SMITH ROBERT F (Last) (First) (Middle) C/O VISTA EQUITY PARTNERS 401 CONGRESS DRIVE, SUITE 3100 (Street) AUSTIN TX 78701 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. 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., each share of the Issuer's common stock was canceled and converted into the right to receive $35.50 per share in cash without interest, subject to required withholding taxes.

2. Includes 13,941,912 shares held directly by Vista Foundation Fund II, L.P. ("VFF II"), 3,175,352 shares held directly by Vista Foundation Fund II-A, L.P. ("VFF II-A"), 846,947 shares held directly by VFF II FAF, L.P. ("VFF II FAF"), 208,600 shares held directly by Vista Foundation Fund II Executive, L.P. ("VFF II Executive"), 27,193 shares held directly by Vista Foundation Associates II, LLC ("VF Associates II") and 95,553,611 shares held directly by Merritt VI Aggregator, LLC ("Merritt VI," and collectively with VFF II, VFF II-A, VFF II FAF, VFF II Executive and VF Associates II, the "Vista Funds").

3. Vista Foundation Fund II GP, LLC ("VFF II GP") is the general partner of each of VFF II, VFF II FAF and VFF II Executive. VEP Group, LLC ("VEP Group") is the Senior Managing Member of VFF II GP and VF Associates II. VFF II GP (Cayman), L.P. ("VFF II-A GP") is the general partner of VFF II-A. VFF II GP (Cayman), Ltd. ("VFF II-A UGP") is the general partner of VFF II-A GP. Vista Equity Partners Fund VI, L.P. ("VEPF VI") is the managing member of Merritt VI. Vista Equity Partners Fund VI GP, L.P. ("Fund VI GP") is the sole general partner of VEPF VI. VEPF VI GP. Ltd. ("Fund VI UGP") is the general partner of Fund VI GP. Robert F. Smith is the sole director and one of 11 members of each of VFF II-A UGP and Fund VI UGP. Robert F. Smith is the sole Managing Member of VEP Group.

4. (Continued from footnote 3) Consequently, Mr. Smith, VFF II GP, VFF II-A GP, VFF II-A UGP, VEPF VI, Fund VI GP, Fund VI UGP and VEP Group may be deemed the beneficial owners of the shares held by the Vista Funds. Each of the Vista Funds, Mr. Smith, VFF II GP, VFF II-A GP, VFF II-A UGP, VEPF VI, Fund VI GP, Fund VI UGP and VEP Group expressly disclaim beneficial ownership of any shares not held directly, except to the extent of its or his pecuniary interest.

Remarks:

This report is filed as form 2 of 2 to report related transactions for the following filers: Vista Foundation Fund II, L.P., Vista Foundation Fund II-A, L.P., VFF II FAF, L.P., Vista Foundation Fund II Executive, L.P., Vista Foundation Associates II, LLC, Merritt VI Aggregator, LLC, Vista Foundation Fund II GP, LLC, VEP Group, LLC, VFF II GP (Cayman), L.P., VFF II GP (Cayman), Ltd., Vista Equity Partners Fund VI, L.P., Vista Equity Partners Fund VI GP, L.P., VEPF VI GP. Ltd. and Robert F. Smith.

	/s/ Robert F. Smith, sole director and member of the General Partner of the General Partner of Vista Equity Partners Fund VI, L.P.	06/27/2022
	/s/ Robert F. Smith, sole director and member of the General Partner of Vista Equity Partners Fund VI GP, L.P.	06/27/2022
	/s/ Robert F. Smith, sole director and member of VEPF VI GP. Ltd.	06/27/2022
	/s/ Robert F. Smith	06/27/2022
	** Signature of Reporting Person	Date
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