0001213900-22-043431.txt : 20220801
0001213900-22-043431.hdr.sgml : 20220801
20220801163021
ACCESSION NUMBER: 0001213900-22-043431
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20210729
FILED AS OF DATE: 20220801
DATE AS OF CHANGE: 20220801
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: 221125197
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
ownership.xml
OWNERSHIP DOCUMENT
X0306
4
2021-07-29
0
0001410172
Rubicon Technology, Inc.
RBCN
0001701731
Westphal Susan
C/O RUBICON TECHNOLOGY, INC.,
900 EAST GREEN ST., UNIT A
BENSENVILLE
IL
60106
1
0
0
0
Common Stock
2022-07-29
4
A
0
1010
0
A
8888
D
/s/ Timothy Brog, Attorney in Fact
2022-08-01