0001384484-18-000005.txt : 20180423 0001384484-18-000005.hdr.sgml : 20180423 20180423095140 ACCESSION NUMBER: 0001384484-18-000005 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20180331 FILED AS OF DATE: 20180423 DATE AS OF CHANGE: 20180423 EFFECTIVENESS DATE: 20180423 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MAD RIVER INVESTORS CENTRAL INDEX KEY: 0001384484 IRS NUMBER: 043446822 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-12322 FILM NUMBER: 18768095 BUSINESS ADDRESS: STREET 1: 84 STATE STREET STREET 2: SUITE 1060 CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-728-0333 MAIL ADDRESS: STREET 1: 84 STATE STREET STREET 2: SUITE 1060 CITY: BOSTON STATE: MA ZIP: 02109 FORMER COMPANY: FORMER CONFORMED NAME: MRM-Horizon Advisors LLC DATE OF NAME CHANGE: 20061222 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001384484 XXXXXXXX 03-31-2018 03-31-2018 MAD RIVER INVESTORS

84 STATE STREET SUITE 1060 BOSTON MA 02109

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