0001213900-18-003163.txt : 20180319 0001213900-18-003163.hdr.sgml : 20180319 20180319174317 ACCESSION NUMBER: 0001213900-18-003163 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180316 FILED AS OF DATE: 20180319 DATE AS OF CHANGE: 20180319 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Westphal Susan CENTRAL INDEX KEY: 0001701731 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-33834 FILM NUMBER: 18699996 MAIL ADDRESS: STREET 1: C/O RUBICON TECHNOLOGY, INC. STREET 2: 900 EAST GREEN STREET, UNIT A CITY: BENSENVILLE STATE: IL ZIP: 60106 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Rubicon Technology, Inc. CENTRAL INDEX KEY: 0001410172 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 364419301 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 900 EAST GREEN STREET CITY: BENSENVILLE STATE: IL ZIP: 60106 BUSINESS PHONE: (847) 295-7000 MAIL ADDRESS: STREET 1: 900 EAST GREEN STREET CITY: BENSENVILLE STATE: IL ZIP: 60106 4 1 f4031618westphal_rubicontech.xml OWNERSHIP DOCUMENT X0306 4 2018-03-16 0 0001410172 Rubicon Technology, Inc. RBCN 0001701731 Westphal Susan C/O RUBICON TECHNOLOGY, INC., 900 EAST GREEN STREET, UNIT A BENSENVILLE IL 60106 1 0 0 0 Common Stock 2018-03-16 4 A 0 626 0 A 4038 D On March 16, 2018, the Reporting Person received shares of restricted stock under the Rubicon Technology, Inc. 2016 Stock Incentive Plan as compensation for service as a Director. Such shares will vest at the date of the 2018 Annual Meeting of Stockholders. /s/ Mardel A. Graffy, Attorney-in-Fact 2018-03-19