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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001213900-18-003163
Filing Date
2018-03-19
Accepted
2018-03-19 17:43:17
Documents
1
Period of Report
2018-03-16

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT f4031618westphal_rubicontech.html 4  
1 OWNERSHIP DOCUMENT f4031618westphal_rubicontech.xml 4 3453
  Complete submission text file 0001213900-18-003163.txt   4850
Mailing Address 900 EAST GREEN STREET BENSENVILLE IL 60106
Business Address 900 EAST GREEN STREET BENSENVILLE IL 60106 (847) 295-7000
Rubicon Technology, Inc. (Issuer) CIK: 0001410172 (see all company filings)

IRS No.: 364419301 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 3674 Semiconductors & Related Devices

Mailing Address C/O RUBICON TECHNOLOGY, INC. 900 EAST GREEN STREET, UNIT A BENSENVILLE IL 60106
Business Address
Westphal Susan (Reporting) CIK: 0001701731 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-33834 | Film No.: 18699996