0001351520-13-000001.txt : 20130731 0001351520-13-000001.hdr.sgml : 20130731 20130731215408 ACCESSION NUMBER: 0001351520-13-000001 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20130729 FILED AS OF DATE: 20130731 DATE AS OF CHANGE: 20130731 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SUPERTEX INC CENTRAL INDEX KEY: 0000730000 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 942328535 STATE OF INCORPORATION: CA FISCAL YEAR END: 1221 BUSINESS ADDRESS: STREET 1: 1235 BORDEAUX DR CITY: SUNNYVALE STATE: CA ZIP: 94089 BUSINESS PHONE: 4087440100 MAIL ADDRESS: STREET 1: 1235 BORDEAUX DR CITY: SUNNYVALE STATE: CA ZIP: 94089 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Tsang Michael CENTRAL INDEX KEY: 0001351520 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-12718 FILM NUMBER: 131000705 MAIL ADDRESS: STREET 1: 1235 BORDEAUX DR. CITY: SUNNYVALE STATE: CA ZIP: 94089 4 1 primary_doc.xml PRIMARY DOCUMENT X0306 4 2013-07-29 0 0000730000 SUPERTEX INC supx 0001351520 Tsang Michael 1235 BORDEAUX DR. SUNNYVALE CA 94089 0 1 0 0 VP, Operations & Product Eng. Common stock 2013-07-29 4 M 0 7000 20.85 A 7000 D Common stock 2013-07-29 4 S 0 7000 26.5 D 0 D Common stock 2013-07-30 4 M 0 7000 20.85 A 7000 D common stock 2013-07-30 4 S 0 7000 27 D 0 D NQ stock options (to exercise common stock) 20.85 2013-07-29 4 M 0 7000 20.85 D 2009-12-01 2018-12-01 Common stock 7000 47000 D NQ stock options (to exericse common stock) 20.85 2013-07-30 4 M 0 7000 20.85 D 2010-12-01 2018-12-01 Common stock 7000 40000 D Michael Tsang 2013-07-31