{"transactions":[{"id":671478,"issuer":{"id":6562,"kind":"organization","name":"NCS Multistage Holdings, Inc."},"owners":[{"id":18088,"kind":"organization","name":"ADVENT INTERNATIONAL, L.P.","position":1,"cik":"0001034196","reported_name":"ADVENT INTERNATIONAL, L.P.","relationship":{"ten_percent_owner":true}},{"id":18089,"kind":"organization","name":"ADVENT INTERNATIONAL GP, LLC","position":2,"cik":"0001984045","reported_name":"ADVENT INTERNATIONAL GP, LLC","relationship":{"ten_percent_owner":true}},{"id":18090,"kind":"organization","name":"Advent-NCS Acquisition Limited Partnership","position":3,"cik":"0001692560","reported_name":"Advent-NCS Acquisition Limited Partnership","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2026-09-01T22:31:03.000Z","date":"2026-09-01","kind":"sale","planned":false,"acquired":false,"shares":1478426,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reported securities were disposed of in connection with the consummation of a merger of the Issuer into a wholly-owned subsidiary of Weatherford International plc, for aggregate consideration of $19,666,839.72 in cash and 357,159 ordinary shares of Weatherford International plc."},{"field":"shares","element":"transactionShares","label":"F2","text":"The reported amount gives effect to a 1-for-20 reverse stock split on December 1, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reported securities were disposed of in connection with the consummation of a merger of the Issuer into a wholly-owned subsidiary of Weatherford International plc, for aggregate consideration of $19,666,839.72 in cash and 357,159 ordinary shares of Weatherford International plc."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The board of Advent International GP, LLC appoints the investment committee of Advent International, L.P. (together, \"Advent\" and the \"Investment Committee,\" respectively). Such Investment Committee has voting and investment power with respect to the securities that were directly held by Advent-NCS Acquisition Limited Partnership on behalf of various funds and accounts managed by Advent (which may have been included on prior Statements filed with respect to the Issuer). Accordingly, Advent International, L.P. and Advent International GP, LLC may each be deemed to beneficially own the securities directly held by Advent-NCS Acquisition Limited Partnership. Each of the Reporting Persons disclaim such beneficial ownership, except to the extent of their respective pecuniary interest therein, if any, and this Statement shall not be deemed an admission of beneficial ownership of any of the reported securities for purposes of Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-26-035360","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1034196/000114036126035360/form4.xml","form_type":"4"}},{"id":4331981,"issuer":{"id":6562,"kind":"organization","name":"NCS Multistage Holdings, Inc."},"owners":[{"id":18088,"kind":"organization","name":"ADVENT INTERNATIONAL, L.P.","position":1,"cik":"0001034196","reported_name":"ADVENT INTERNATIONAL CORP/MA","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18090,"kind":"organization","name":"Advent-NCS Acquisition Limited Partnership","position":2,"cik":"0001692560","reported_name":"Advent-NCS Acquisition Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":176467,"kind":"organization","name":"Advent-NCS GP LLC","position":3,"cik":"0001698335","reported_name":"Advent-NCS GP LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2017-05-05T13:00:05.000Z","date":"2017-05-03","kind":"sale","acquired":false,"shares":1375000,"price":15.9375,"value":21914062.5,"ownership":{"direct":false,"nature":"See Notes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares of common stock of the Issuer were sold pursuant to the underwriters' exercise of their over-allotment option in connection with an initial public offering of the common stock of the Issuer pursuant to the prospectus, dated April 27, 2017, and accompanying registration statement on Form S-1/A, dated April 26, 2017."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents 29,568,536 shares held directly by Advent-NCS Acquisition Limited Partnership (\"Advent-NCS LP\"), of which 3,693,109 shares are indirectly owned by Advent International GPE VII Limited Partnership(\"AI GPE VII\"), 3,418,124 shares are indirectly owned by Advent International GPE VII-A Limited Partnership (\"AI GPE VII-A\"), 8,589,659 shares are indirectly owned by Advent International GPE VII-B Limited Partnership (\"AI GPE VII-B\"), 2,729,175 shares are indirectly owned by Advent International GPE VII-C Limited Partnership (\"AI GPE VII-C\"),(CONTINUED IN NEXT FOOTNOTE)"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(CONTINUTED FROM PREVIOUS FOOTNOTE) 2,211,725 shares are indirectly owned by Advent International GPE VII-D Limited Partnership (\"AI GPE VII-D\"), 6,188,694 shares are indirectly owned by Advent International GPE VII-E Limited Partnership (\"AI GPE VII-E\"), 798,351 shares are indirectly owned by Advent International GPE VII-F Limited Partnership (\"AI GPE VII-F\"), 798,351 shares are indirectly owned by Advent International GPE VII-G Limited Partnership (\"AI GPE VII-G\"), 481,968 shares are indirectly owned by Advent International GPE VII-H Limited Partnership (\"AI GPE VII-H\"), 11,828 shares are indirectly owned by Advent Partners GPE VII Limited Partnership (\"AP GPE VII\"), 29,570 shares are indirectly owned by Advent Partners GPE VII-A Limited Partnership (\"AP GPE VII-A\"), (CONTINUED IN NEXT FOOTNOTE)"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"(CONTINUTED FROM PREVIOUS FOOTNOTE) 289,771 shares are indirectly owned by Advent Partners GPE VII-B Cayman Limited Partnership (\"AP GPE VII-B Cayman\"), 260,204 shares are indirectly owned by Advent Partners GPE VII Cayman Limited Partnership (\"AP GPE VII Cayman\") and 68,007 shares are indirectly owned by Advent Partners GPE VII-A Cayman Limited Partnership (\"AP GPE VII-A Cayman\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Advent International Corporation (\"AIC\") is the manager of Advent International LLC (\"AILLC\") and of Advent International GPE VII, LLC (\"AI GPE VII GP\"). AI GPE VII GP is the general partner of each of AP GPE VII, AP GPE VII-A, AP GPE VII Cayman, AP GPE VII-A Cayman and AP GPE VII-B Cayman (collectively, the \"AP Funds\"). AI GPE VII GP also is the general partner of GPE VII GP Limited Partnership (\"GPE VII GP\"), which is the general partner of each of AI GPE VII-A, AI GPE VII-E and AI GPE VII-H (collectively, the \"GPE VII GP Funds\"). AI GPE VII GP also is the general partner of GPE VII GP (Delaware)Limited Partnership (\"GPE VII GP DE\"), which is the general partner of each of AI GPE VII, AI GPE VII-B, AI GPE VII-C, AI GPE VII-D, AI GPE VII-F and AI GPE VII-G (collectively, the \"GPE VII GP DE Funds\"). Advent-NCS GP LLC (\"Advent-NCS GP\") is the general partner of Advent NSC LP.  The AP Funds, GPE VII GP Funds and GPE VII GP DE Funds collectively own 100% (CONTINUED IN NEXT FOOTNOTE)"},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"(CONTINUED FROM PREVIOUS FOOTNOTE)  of the limited partnership interest in Advent-NCS LP.  Each of AIC, AILLC, AI GPE VII GP, GPE VII GP, GPE VII GP DE, Advent-NCS GP, Advent-NCS LP, each of the AP Funds, each of the GPE VII GP Funds and each of the GPE VII GP DE Funds are referred to herein as the \"Reporting Persons\". Each Reporting Person disclaims Section 16 beneficial ownership of the shares reported herein except to the extent of its respective pecuniary interest therein, if any, and the inclusion of these shares in their report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or any other purpose."}],"balance_after":29568536,"source":{"system":"sec-edgar","filing":"0001209191-17-030177","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1034196/000120919117030177/doc4.xml","form_type":"4"}}]}