0001209191-16-090221.txt : 20160106 0001209191-16-090221.hdr.sgml : 20160106 20160106210500 ACCESSION NUMBER: 0001209191-16-090221 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20160104 FILED AS OF DATE: 20160106 DATE AS OF CHANGE: 20160106 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Mast Therapeutics, Inc. CENTRAL INDEX KEY: 0001160308 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 841318182 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 3611 VALLEY CENTRE DRIVE STREET 2: SUITE 500 CITY: SAN DIEGO STATE: CA ZIP: 92130 BUSINESS PHONE: 8585520866 MAIL ADDRESS: STREET 1: 3611 VALLEY CENTRE DRIVE STREET 2: SUITE 500 CITY: SAN DIEGO STATE: CA ZIP: 92130 FORMER COMPANY: FORMER CONFORMED NAME: ADVENTRX PHARMACEUTICALS INC DATE OF NAME CHANGE: 20030613 FORMER COMPANY: FORMER CONFORMED NAME: BIOKEYS PHARMACEUTICALS INC DATE OF NAME CHANGE: 20010928 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Culley Brian M CENTRAL INDEX KEY: 0001310683 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32157 FILM NUMBER: 161328665 MAIL ADDRESS: STREET 1: 6725 MESA RIDGE ROAD STREET 2: SUITE 100 CITY: SAN DIEGO STATE: CA ZIP: 92121 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2016-01-04 0 0001160308 Mast Therapeutics, Inc. MSTX 0001310683 Culley Brian M 3611 VALLEY CENTRE DRIVE, SUITE 500 SAN DIEGO CA 92130 1 1 0 0 CEO and Director Employee Stock Option (Right to Buy) 0.42 2016-01-04 4 A 0 1227100 0.00 A 2026-01-04 Common Stock 1227100 1227100 D This option vests and becomes exercisable in 48 substantially equal monthly installments on each monthly anniversary of January 4, 2016, subject to the reporting person's continued service with the issuer. Brian M. Culley 2016-01-06