SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

McKenna David M

(Last)

(First)

(Middle)

C/O ADVENT INTERNATIONAL CORPORATION

75 STATE STREET, 29TH FLOOR

(Street)

BOSTON

02109

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/27/2017

3. Issuer Name and Ticker or Trading Symbol
NCS Multistage Holdings, Inc. [ NCSM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	30,943,536⁽¹⁾⁽²⁾⁽³⁾	I	See Notes⁽¹⁾⁽²⁾⁽³⁾

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)

Explanation of Responses:

1. The Reporting Person is a Managing Partner at Advent International Corporation ("AIC") and in addition may have limited partnership or other interests in one or more of the Advent Entities (as defined below). AIC manages funds that collectively own 30,943,536 shares (the "Shares"), which are represented as follows: 3,864,846 shares are indirectly owned by Advent International GPE VII Limited Partnership, 3,577,074 shares are indirectly owned by Advent International GPE VII-A Limited Partnership, 8,989,098 shares are indirectly owned by Advent International GPE VII-B Limited Partnership, 2,856,087 shares are indirectly owned by Advent International GPE VII-C Limited Partnership, (CONTINUED IN NEXT FOOTNOTE)

2. (CONTINUTED FROM PREVIOUS FOOTNOTE) 2,314,575 shares are indirectly owned by Advent International GPE VII-D Limited Partnership, 6,476,481 shares are indirectly owned by Advent International GPE VII-E Limited Partnership, 835,476 shares are indirectly owned by Advent International GPE VII-F Limited Partnership, 835,476 shares are indirectly owned by Advent International GPE VII-G Limited Partnership, 504,381 shares are indirectly owned by Advent International GPE VII-H Limited Partnership, 12,378 shares are indirectly owned by Advent Partners GPE VII Limited Partnership, 30,945 shares are indirectly owned by Advent Partners GPE VII-A Limited Partnership, 303,246 shares are indirectly owned by Advent Partners GPE VII-B Cayman Limited Partnership, 272,304 shares are indirectly owned by Advent Partners GPE VII Cayman Limited Partnership and (CONTINUED IN NEXT FOOTNOTE)

3. (CONTINUTED FROM PREVIOUS FOOTNOTE) 71,169 shares are indirectly owned by Advent Partners GPE VII-A Cayman Limited Partnership (collectively and together with certain other affiliates of Advent, the "Advent Entities"). The Reporting Person disclaims Section 16 beneficial ownership of the Shares except to the extent of his pecuniary interest therein, if any, and the reference to these Shares in this report shall not be deemed an admission of beneficial ownership of all of the Shares for purposes of Section 16 or any other purpose.

Remarks:

	/s/ Richard Terranova, Attorney-in-Fact	04/27/2017
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.