0001315863-17-000257.txt : 20170316 0001315863-17-000257.hdr.sgml : 20170316 20170316113806 ACCESSION NUMBER: 0001315863-17-000257 CONFORMED SUBMISSION TYPE: D/A PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) FILED AS OF DATE: 20170316 DATE AS OF CHANGE: 20170316 EFFECTIVENESS DATE: 20170316 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Mast OC I Master Fund L.P. CENTRAL INDEX KEY: 0001453011 IRS NUMBER: 980539354 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-194114 FILM NUMBER: 17693483 BUSINESS ADDRESS: STREET 1: 200 CLARENDON ST. STREET 2: 51ST FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-247-3006 MAIL ADDRESS: STREET 1: 200 CLARENDON ST. STREET 2: 51ST FLOOR CITY: BOSTON STATE: MA ZIP: 02116 D/A 1 primary_doc.xml X0707 D/A LIVE 0001453011 Mast OC I Master Fund L.P. 200 CLARENDON ST. 51ST FLOOR BOSTON MA MASSACHUSETTS 02116 617-247-3006 CAYMAN ISLANDS None None Limited Partnership true David J. Steinberg c/o Mast Capital Management, LLC 200 Clarendon Street, 51st Floor Boston MA MASSACHUSETTS 02116 Executive Officer Mr. Steinberg is the managing member of Mast Capital Management IA Holdings, LLC, the sole member of Mast OC I IA LLC, the general partner of the Issuer. N/A Mast OC I IA, LLC c/o Mast Capital Management, LLC 200 Clarendon Street, 51st Floor Boston MA MASSACHUSETTS 02116 Executive Officer Promoter Mast OC I IA, LLC is the general partner of the Issuer. Pooled Investment Fund Hedge Fund false Decline to Disclose 06b 3C 3C.1 true 0001315863-16-001322 2007-06-07 true true true false 100000 Indefinite 35982410 Indefinite The number of investors and total amount sold reflect U.S. and non-U.S. investors. false 24 0 0 0 Interests in the Issuer are indirectly subject to performance allocations and management fees, which are fully discussed in the Issuer's confidential offering documents. false Mast OC I Master Fund L.P. /s/David J. Steinberg David J. Steinberg Managing Member of sole member of GP 2017-03-16