0002042920-24-000002.txt : 20241029 0002042920-24-000002.hdr.sgml : 20241029 20241029130618 ACCESSION NUMBER: 0002042920-24-000002 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20241029 DATE AS OF CHANGE: 20241029 EFFECTIVENESS DATE: 20241029 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Sienna Co-investor Partners LP CENTRAL INDEX KEY: 0002042920 ORGANIZATION NAME: IRS NUMBER: 000000000 STATE OF INCORPORATION: X0 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-528032 FILM NUMBER: 241404534 BUSINESS ADDRESS: STREET 1: MAYFAIR EQUITY PARTNERS LLP STREET 2: 8 HANOVER STREET CITY: LONDON STATE: X0 ZIP: W1S 1YQ BUSINESS PHONE: 44 20 3058 2670 MAIL ADDRESS: STREET 1: MAYFAIR EQUITY PARTNERS LLP STREET 2: 8 HANOVER STREET CITY: LONDON STATE: X0 ZIP: W1S 1YQ D 1 primary_doc.xml X0708 D LIVE 0002042920 Sienna Co-investor Partners LP MAYFAIR EQUITY PARTNERS LLP 8 HANOVER STREET LONDON X0 UNITED KINGDOM W1S 1YQ 44 20 3058 2670 UNITED KINGDOM None None Other an English private fund limited partnership true 2024 - Mayfair Equity Partners III Co-Investor A GP LLP c/o Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Promoter General Partner - Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Executive Officer Manager Daniel William Sasaki c/o Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Executive Officer Director Member of Mayfair Equity Partners LLP and Mayfair Equity Partners III Co-Investor A GP LLP Kunal Dasgupta c/o Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Executive Officer Director Member of Mayfair Equity Partners LLP and Mayfair Equity Partners III Co-Investor A GP LLP Bertie Thomas Aykroyd c/o Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Director Member of Mayfair Equity Partners LLP and Mayfair Equity Partners III Co-Investor A GP LLP Waqqas Ahmad c/o Mayfair Equity Partners LLP 8 Hanover Street London X0 UNITED KINGDOM W1S 1YQ Director Member of Mayfair Equity Partners LLP and Mayfair Equity Partners III Co-Investor A GP LLP Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.1 3C.7 false true false true true false 0 Indefinite 0 Indefinite false 0 0 0 0 true false Sienna Co-investor Partners LP /s/ Daniel William Sasaki Daniel William Sasaki Member of the General Partner of the Issuer 2024-10-28