Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
Checkbox not checked   Rule 13d-1(c)
Checkbox checked   Rule 13d-1(d)






SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of common stock ("Common Stock") outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the Securities and Exchange Commission ("SEC") on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G




Comment for Type of Reporting Person:  The reported percentage is calculated based on 2,540,849 shares of Common Stock outstanding as of April 29, 2025, as reported on the Issuer's 10-Q filed with the SEC on May 1, 2025.


SCHEDULE 13G



 
ADVENT INTERNATIONAL, L.P.
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory
Date:05/15/2025
 
Advent International GPE VII LLC
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent-NCS Acquisition Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent-NCS GP LLC
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory
Date:05/15/2025
 
GPE VII GP Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
GPE VII GP (Delaware) Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent Partners GPE VII Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent Partners GPE VII-A Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent Partners GPE VII-B Cayman Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent Partners GPE VII Cayman Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent Partners GPE VII-A Cayman Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-A Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-B Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-C Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-D Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-E Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-F Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-G Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
 
Advent International GPE VII-H Limited Partnership
 
Signature:/s/ Neil Crawford
Name/Title:Neil Crawford / Authorized Signatory, See Exhibit 99.2
Date:05/15/2025
Exhibit Information

99.1 Joint Filing Agreement, dated May 15, 2025 99.2 Signature Page, dated May 15, 2025


EXHIBIT 99.1
 
JOINT FILING AGREEMENT
 
In accordance with Rule 13d-l(k)(l) promulgated under the Securities Exchange Act of 1934. as amended, the undersigned hereby agree to the joint filing with each of the Reporting Persons (as such term is defined in the Schedule 13G Amendment referred to below) on behalf of each of them of a statement on Schedule 13G Amendment (including amendments thereto) with respect to the Common Stock, par value $0.01 per share, of NCS Multistage Holdings, Inc., a Delaware corporation, and that this agreement may be included as an exhibit to such joint filing.
 
Date: May 15, 2025




Advent International GPE VII-A Limited Partnership

Advent International GPE VH-E Limited Partnership

Advent International GPE VH-H Limited Partnership

By: GPE VIIGP Limited Partnership, General Partner

By: Advent International GPE VII LLC, General Partner

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory




/s/ Neil Crawford


Signature



Advent International GPE VII Limited Partnership

Advent International GPE VH-B Limited Partnership

Advent International GPE VH-C Limited Partnership

Advent International GPE VH-D Limited Partnership

Advent International GPE VH-F Limited Partnership

Advent International GPE VII-G Limited Partnership

By: GPE VII GP (Delaware) Limited Partnership, General Partner

By: Advent International GPE VII LLC, General Partner

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory




/s/ Neil Crawford


Signature



Advent Partners GPE VII Limited Partnership

Advent Partners GPE VII-A Limited Partnership

Advent Partners GPE VH-B Cayman Limited Partnership

Advent Partners GPE VII Cayman Limited Partnership

Advent Partners GPE VII-A Cayman Limited Partnership

By: Advent International GPE VII LLC, General Partner

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory




/s/ Neil Crawford


Signature



GPE VIIGP Limited Partnership

By: Advent International GPE VII LLC, General Partner

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory




/s/ Neil Crawford


Signature



GPE VII GP (Delaware) Limited Partnership

By: Advent International GPE VII LLC, General Partner

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory




/s/ Neil Crawford


Signature



Advent International GPE VII LLC

By: Advent International L.P., Manager

By: Neil Crawford, Authorized Signatory

 


/s/ Neil Crawford


Signature
   

Advent International L.P.

By: Neil Crawford, Authorized Signatory

 


/s/ Neil Crawford


Signature

 

Advent-NCS Acquisition Limited Partnership

By: Advent-NCS GP LLC, General Partner

By: Neil Crawford, Authorized Signatory

 


/s/ Neil Crawford


Signature

 

Advent-NCS GP LLC

By: Neil Crawford, Authorized Signatory

 


/s/ Neil Crawford


Signature




EXHIBIT 99.2
 
SIGNATURE PAGE
 
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
 
Date: May 15, 2025

 
Advent International GPE VII-A Limited Partnership
 
Advent International GPE VH-E Limited Partnership
 
Advent International GPE VH-H Limited Partnership
 
By: GPE VIIGP Limited Partnership, General Partner
 
By: Advent International GPE VII LLC, General Partner
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature
   
 
Advent International GPE VII Limited Partnership
 
Advent International GPE VH-B Limited Partnership
 
Advent International GPE VH-C Limited Partnership
 
Advent International GPE VH-D Limited Partnership
 
Advent International GPE VH-F Limited Partnership
 
Advent International GPE VII-G Limited Partnership
 
By: GPE VII GP (Delaware) Limited Partnership, General Partner
 
By: Advent International GPE VII LLC, General Partner
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature
   
 
Advent Partners GPE VII Limited Partnership
 
Advent Partners GPE VII-A Limited Partnership
 
Advent Partners GPE VH-B Cayman Limited Partnership
 
Advent Partners GPE VII Cayman Limited Partnership
 
Advent Partners GPE VII-A Cayman Limited Partnership
 
By: Advent International GPE VII LLC, General Partner
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature


 
GPE VIIGP Limited Partnership
 
By: Advent International GPE VII LLC, General Partner
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature
   
 
GPE VII GP (Delaware) Limited Partnership
 
By: Advent International GPE VII LLC, General Partner
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature
   
 
Advent International GPE VII LLC
 
By: Advent International L.P., Manager
 
By: Neil Crawford, Authorized Signatory
   
 
/s/ Neil Crawford
 
Signature
   
 
Advent-NCS Acquisition Limited Partnership
 
By: Advent-NCS GP LLC, General Partner                                                    
  By: Neil Crawford, Authorized Signatory
     
 
/s/ Neil Crawford
 
Signature