0001195890-12-000004.txt : 20120611 0001195890-12-000004.hdr.sgml : 20120611 20120611214251 ACCESSION NUMBER: 0001195890-12-000004 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120605 FILED AS OF DATE: 20120611 DATE AS OF CHANGE: 20120611 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: CHOY BENEDICT C K CENTRAL INDEX KEY: 0001195890 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-12718 FILM NUMBER: 12901874 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 4 1 primary_doc.xml PRIMARY DOCUMENT X0305 4 2012-06-05 0 0000730000 SUPERTEX INC supx 0001195890 CHOY BENEDICT C K 1 1 0 0 Senior VP, Tech Development Common stock 2012-06-05 4 S 0 1000 18.7 D 151610 D Common stock 2012-06-07 4 S 0 1000 18.92 D 150610 D Benedict C.K. Choy 2012-06-11