0001104659-17-061562.txt : 20171010 0001104659-17-061562.hdr.sgml : 20171010 20171010160642 ACCESSION NUMBER: 0001104659-17-061562 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20171010 FILED AS OF DATE: 20171010 DATE AS OF CHANGE: 20171010 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hadley Harbor Master Investors (Cayman) L.P. CENTRAL INDEX KEY: 0001641080 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38223 FILM NUMBER: 171130565 BUSINESS ADDRESS: STREET 1: ELIAN FIDUCIARY SERVICES (CAYMAN) LTD STREET 2: 89 NEXUS WAY, CAMANA BAY CITY: GRAND CAYMAN STATE: E9 ZIP: KY1-9007 BUSINESS PHONE: 617-790-7163 MAIL ADDRESS: STREET 1: ELIAN FIDUCIARY SERVICES (CAYMAN) LTD STREET 2: 89 NEXUS WAY, CAMANA BAY CITY: GRAND CAYMAN STATE: E9 ZIP: KY1-9007 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: RHYTHM PHARMACEUTICALS, INC. CENTRAL INDEX KEY: 0001649904 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 462159271 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 11TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 857-264-4280 MAIL ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 11TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 FORMER COMPANY: FORMER CONFORMED NAME: RHYTHM METABOLIC, INC. DATE OF NAME CHANGE: 20150803 4 1 a4.xml 4 X0306 4 2017-10-10 1 0001649904 RHYTHM PHARMACEUTICALS, INC. RYTM 0001641080 Hadley Harbor Master Investors (Cayman) L.P. C/O WELLINGTON MANAGEMENT COMPANY LLP 280 CONGRESS STREET BOSTON MA 02210 0 0 1 0 Common Stock 2017-10-10 4 C 0 545256 A 545256 D Series A Convertible Preferred Stock 2017-10-10 4 C 0 5000000 0 D Common Stock 545256 0 D The Series A Convertible Preferred Stock converted into Common Stock on a 9.17-for-one basis upon the closing of the Issuer's initial public offering. The shares had no expiration date. Hadley Harbor Master Investors (Cayman) L.P. By: Wellington Alternative Investments LLC, as General Partner By: /s/ Matthew N. Shea, Title: Authorized Person 2017-10-10