As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  5/4/17  Advent-NCS GP LLC                 3/A        10% Owner²  1:12K  NCS Multistage Holdings, Inc.     DONNELLEY FIN… File16/FA 
          Advent International Corp./MA
          Advent International GPE VII-H Ltd. Partnership
          Advent-NCS Acquisition Ltd. Partnership
  5/3/17  NCS Multistage Holdings, Inc.     8-K:1,3,5,8 4/27/17    4:344K                                   Donnelley … Solutions/FA 
 4/27/17  NCS Multistage Holdings, Inc.     CERTNAS     4/27/17    1:2K                                     SEC #7                   
 4/27/17‡ NCS Multistage Holdings, Inc.     EFFECT      4/27/17    1:2K                                     SEC #5                   
 4/27/17  Nipper Robert                     3          Dir.,Off.²  2:16K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Stromquist Marty                  3          Dir.,Off.²  2:16K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Trautner Kevin                    3          Officer²    2:15K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Fitzgerald Matthew D              3          Director²   2:13K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Bitter Wade                       3          Officer²    2:17K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Myers Franklin                    3          Director²   2:14K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  McShane Michael                   3          Director²   2:15K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Willems Tim                       3          Officer²    2:16K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Ralls W Matt                      3          Director²   2:13K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Hummer Ryan                       3          Officer²    2:14K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Deane John D                      3          Director²   2:16K  NCS Multistage Holdings, Inc.     Broadridge Fin’l So… Inc 
 4/27/17  Advent-NCS GP LLC                 3          10% Owner²  2:12K  NCS Multistage Holdings, Inc.     Donnelley Fin’l S… 06/FA 
          Advent International Corp./MA
          Advent-NCS Acquisition Ltd. Partnership
 4/27/17  Advent Partners GPE VII-B Cay… LP 3          10% Owner²  2:21K  NCS Multistage Holdings, Inc.     Donnelley Fin’l S… 06/FA 
          Advent International Corp./MA
          Advent International GPE VII, LLC
          Advent Partners GPE VII Cayman Ltd. Partnership
          Advent Partners GPE VII Ltd. Partnership
          Advent Partners GPE VII-A Cayman Ltd. Partnership
          Advent Partners GPE VII-A Ltd. Partnership
          GPE VII GP (Delaware) Ltd. Partnership
          GPE VII GP Ltd. Partnership
 4/27/17  Advent International GPE VII-G LP 3          10% Owner²  2:23K  NCS Multistage Holdings, Inc.     Donnelley Fin’l S… 06/FA 
          Advent International Corp./MA
          Advent International GPE VII Ltd. Partnership
          Advent International GPE VII-A Ltd. Partnership
          Advent International GPE VII-B Ltd. Partnership
          Advent International GPE VII-C Ltd. Partnership
          Advent International GPE VII-D Ltd. Partnership
          Advent International GPE VII-E Ltd. Partnership
          Advent International GPE VII-F Ltd. Partnership
          Advent International LLC
 4/27/17  McKenna David M                   3          Director²   2:10K  NCS Multistage Holdings, Inc.     Donnelley Fin’l S… 06/FA 
 4/27/17  Grewal Gurinder                   3          Director²   2:10K  NCS Multistage Holdings, Inc.     Donnelley Fin’l S… 06/FA 

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‡	A non-Insider-Ownership Filing that was accepted after the SEC “closed” at 5:30:00pm ET.  The legal “Filed As Of” date may be the next, or another, day.
¹	Filing/Form Types:  -D
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	CERTNAS	Certification by the Nasdaq Stock Market Approving a Listing — Form CERT.
	EFFECT	SEC Notice of Effectiveness.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.